CA2191227A1 - Fluid extraction of metals and/or metalloids - Google Patents

Fluid extraction of metals and/or metalloids

Info

Publication number
CA2191227A1
CA2191227A1 CA002191227A CA2191227A CA2191227A1 CA 2191227 A1 CA2191227 A1 CA 2191227A1 CA 002191227 A CA002191227 A CA 002191227A CA 2191227 A CA2191227 A CA 2191227A CA 2191227 A1 CA2191227 A1 CA 2191227A1
Authority
CA
Canada
Prior art keywords
diketone
beta
chelating agent
fluorinated
actinides
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002191227A
Other languages
French (fr)
Other versions
CA2191227C (en
Inventor
Chien M. Wai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Idaho Research Foundation Inc
Original Assignee
Chien M. Wai
Idaho Research Foundation, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chien M. Wai, Idaho Research Foundation, Inc. filed Critical Chien M. Wai
Priority claimed from PCT/US1994/006450 external-priority patent/WO1995033541A1/en
Publication of CA2191227A1 publication Critical patent/CA2191227A1/en
Application granted granted Critical
Publication of CA2191227C publication Critical patent/CA2191227C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G21—NUCLEAR PHYSICS; NUCLEAR ENGINEERING
    • G21F—PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULAR RADIATION OR PARTICLE BOMBARDMENT; TREATING RADIOACTIVELY CONTAMINATED MATERIAL; DECONTAMINATION ARRANGEMENTS THEREFOR
    • G21F9/00—Treating radioactively contaminated material; Decontamination arrangements therefor
    • G21F9/04—Treating liquids
    • G21F9/06—Processing
    • G21F9/12—Processing by absorption; by adsorption; by ion-exchange
    • G21F9/125—Processing by absorption; by adsorption; by ion-exchange by solvent extraction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D11/00—Solvent extraction
    • B01D11/04—Solvent extraction of solutions which are liquid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D11/00—Solvent extraction
    • B01D11/02—Solvent extraction of solids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D11/00—Solvent extraction
    • B01D11/02—Solvent extraction of solids
    • B01D11/0203—Solvent extraction of solids with a supercritical fluid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D11/00—Solvent extraction
    • B01D11/02—Solvent extraction of solids
    • B01D11/0288—Applications, solvents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D11/00—Solvent extraction
    • B01D11/04—Solvent extraction of solutions which are liquid
    • B01D11/0403—Solvent extraction of solutions which are liquid with a supercritical fluid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D11/00—Solvent extraction
    • B01D11/04—Solvent extraction of solutions which are liquid
    • B01D11/0403—Solvent extraction of solutions which are liquid with a supercritical fluid
    • B01D11/0407—Solvent extraction of solutions which are liquid with a supercritical fluid the supercritical fluid acting as solvent for the solute
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D11/00—Solvent extraction
    • B01D11/04—Solvent extraction of solutions which are liquid
    • B01D11/0492—Applications, solvents used
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B7/00—Cleaning by methods not provided for in a single other subclass or a single group in this subclass
    • B08B7/0021—Cleaning by methods not provided for in a single other subclass or a single group in this subclass by liquid gases or supercritical fluids
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09C—RECLAMATION OF CONTAMINATED SOIL
    • B09C1/00—Reclamation of contaminated soil
    • B09C1/02—Extraction using liquids, e.g. washing, leaching, flotation
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F17/00—Compounds of rare earth metals
    • C01F17/10—Preparation or treatment, e.g. separation or purification
    • C01F17/17—Preparation or treatment, e.g. separation or purification involving a liquid-liquid extraction
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F17/00—Compounds of rare earth metals
    • C01F17/20—Compounds containing only rare earth metals as the metal element
    • C01F17/276—Nitrates
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
    • C22B3/04—Extraction of metal compounds from ores or concentrates by wet processes by leaching
    • C22B3/16—Extraction of metal compounds from ores or concentrates by wet processes by leaching in organic solutions
    • C22B3/1608—Leaching with acyclic or carbocyclic agents
    • C22B3/1616—Leaching with acyclic or carbocyclic agents of a single type
    • C22B3/1641—Leaching with acyclic or carbocyclic agents of a single type with ketones or aldehydes
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
    • C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
    • C22B3/26—Treatment or purification of solutions, e.g. obtained by leaching by liquid-liquid extraction using organic compounds
    • C22B3/306—Ketones or aldehydes
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
    • C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
    • C22B3/26—Treatment or purification of solutions, e.g. obtained by leaching by liquid-liquid extraction using organic compounds
    • C22B3/32—Carboxylic acids
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B3/00—Extraction of metal compounds from ores or concentrates by wet processes
    • C22B3/20—Treatment or purification of solutions, e.g. obtained by leaching
    • C22B3/26—Treatment or purification of solutions, e.g. obtained by leaching by liquid-liquid extraction using organic compounds
    • C22B3/38—Treatment or purification of solutions, e.g. obtained by leaching by liquid-liquid extraction using organic compounds containing phosphorus
    • C22B3/384—Pentavalent phosphorus oxyacids, esters thereof
    • C22B3/3846—Phosphoric acid, e.g. (O)P(OH)3
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/54—Improvements relating to the production of bulk chemicals using solvents, e.g. supercritical solvents or ionic liquids
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S210/00—Liquid purification or separation
    • Y10S210/902—Materials removed
    • Y10S210/911—Cumulative poison
    • Y10S210/912—Heavy metal

Abstract

A method of extracting metalloid and metal species from a solid or liquid material by exposing the material to a supercritical fluid sol-vent containing a chelating agent is described.
The chelating agent forms chelates that are solu-ble in the supercritical fluid to allow removal of the species from the material. In preferred em-bodiments, the extraction solvent is supercritical carbon dioxide and the chelating agent is a fluo-rinated .beta.-diketone. In especially preferred em-bodiments the extraction solvent is supercritical carbon dioxide, and the chelating agent com-prises a fluorinated .beta.-diketone and a trialkyl phosphate, or a fluorinated .beta.-diketone and a tri-alkylphosphine oxide. Although a trialkyl phos-phate can extract lanthanides and actinides from acidic solutions, a binary mixture comprising a fluorinated .beta.-diketone and a trialkyl phosphate or a trialkylphosphine oxide tends to enhance the extraction efficiencies for actinides and lan-thanides. The method provides an environmen-tally benign process for removing contaminants from industrial waste without using acids or bi-ologically harmful solvents. The method is par-ticularly useful for extracting actinides and lan-tanides from acidic solutions. The chelate and supercritical fluid can be regenerated, and the contaminant species recovered, to provide an economic, efficient process.
CA002191227A 1994-06-02 1994-06-09 Fluid extraction of metals and/or metalloids Expired - Fee Related CA2191227C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US08/253,000 1994-06-02
US08/253,000 US5730874A (en) 1991-06-12 1994-06-02 Extraction of metals using supercritical fluid and chelate forming legand
PCT/US1994/006450 WO1995033541A1 (en) 1994-06-09 1994-06-09 Fluid extraction of metals and/or metalloids

Publications (2)

Publication Number Publication Date
CA2191227A1 true CA2191227A1 (en) 1995-12-14
CA2191227C CA2191227C (en) 2001-06-05

Family

ID=22958433

Family Applications (2)

Application Number Title Priority Date Filing Date
CA002191227A Expired - Fee Related CA2191227C (en) 1994-06-02 1994-06-09 Fluid extraction of metals and/or metalloids
CA002191243A Expired - Fee Related CA2191243C (en) 1994-06-02 1995-06-02 Fluid extraction

Family Applications After (1)

Application Number Title Priority Date Filing Date
CA002191243A Expired - Fee Related CA2191243C (en) 1994-06-02 1995-06-02 Fluid extraction

Country Status (9)

Country Link
US (1) US5730874A (en)
EP (2) EP0762918B1 (en)
JP (2) JP2002508697A (en)
KR (1) KR970703184A (en)
CN (2) CN1082825C (en)
AU (1) AU3269895A (en)
CA (2) CA2191227C (en)
DE (2) DE69431260D1 (en)
WO (1) WO1995033542A1 (en)

Families Citing this family (88)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5965025A (en) * 1991-06-12 1999-10-12 Idaho Research Foundation, Inc. Fluid extraction
JP3387694B2 (en) * 1995-06-20 2003-03-17 株式会社クボタ Fly ash treatment method
US5606724A (en) * 1995-11-03 1997-02-25 Idaho Research Foundation, Inc. Extracting metals directly from metal oxides
US5840193A (en) * 1996-07-26 1998-11-24 Idaho Research Foundation Fluid extraction using carbon dioxide and organophosphorus chelating agents
US5792357A (en) * 1996-07-26 1998-08-11 Idaho Research Foundation, Inc. Method and apparatus for back-extracting metal chelates
US5865994A (en) * 1997-03-13 1999-02-02 Dionex Corporation Bifunctional crown ether-based cation-exchange stationary phase for liquid chromatography
US6500605B1 (en) 1997-05-27 2002-12-31 Tokyo Electron Limited Removal of photoresist and residue from substrate using supercritical carbon dioxide process
AU4978797A (en) * 1997-08-20 1999-03-08 Idaho Research Foundation Inc., The Method for dissociating metals or dissociating metal compounds
CN1086206C (en) * 1997-11-12 2002-06-12 中国科学院化工冶金研究所 Antimicelle method of solvent extraction for preparing superfine powder of metal oxide and use thereof
US6187911B1 (en) * 1998-05-08 2001-02-13 Idaho Research Foundation, Inc. Method for separating metal chelates from other materials based on solubilities in supercritical fluids
RU2153203C2 (en) * 1998-05-22 2000-07-20 Научно-производственное объединение "Радиевый институт им.В.Г.Хлопина" Method for decontaminating surfaces of solid bodies from inorganic pollutants including radioactive ones
US6468909B1 (en) 1998-09-03 2002-10-22 Micron Technology, Inc. Isolation and/or removal of ionic contaminants from planarization fluid compositions using macrocyclic polyethers and methods of using such compositions
US7064070B2 (en) 1998-09-28 2006-06-20 Tokyo Electron Limited Removal of CMP and post-CMP residue from semiconductors using supercritical carbon dioxide process
US6277753B1 (en) 1998-09-28 2001-08-21 Supercritical Systems Inc. Removal of CMP residue from semiconductors using supercritical carbon dioxide process
US6176895B1 (en) 1998-11-04 2001-01-23 Desimone Joseph M. Polymers for metal extractions in carbon dioxide
US6747179B1 (en) 1999-08-20 2004-06-08 North Carolina State University Carbon dioxide-soluble polymers and swellable polymers for carbon dioxide applications
US6748960B1 (en) 1999-11-02 2004-06-15 Tokyo Electron Limited Apparatus for supercritical processing of multiple workpieces
US6416682B1 (en) 1999-11-04 2002-07-09 Ceramic Oxides International B.V. Method of producing minerals under near-critical, critical and supercritical conditions
EP1277233A2 (en) * 2000-04-25 2003-01-22 Tokyo Electron Corporation Method of depositing metal film and metal deposition cluster tool including supercritical drying/cleaning module
US6625977B2 (en) 2000-12-20 2003-09-30 Caterpillar Inc Method and a system for removing particulates and toxic substances from an exhaust of an engine that use hydrocarbons as a fuel
KR100777892B1 (en) * 2001-04-10 2007-11-21 동경 엘렉트론 주식회사 High pressure processing chamber for semiconductor substrate including flow enhancing features
US7729811B1 (en) 2001-04-12 2010-06-01 Eestor, Inc. Systems and methods for utility grid power averaging, long term uninterruptible power supply, power line isolation from noise and transients and intelligent power transfer on demand
US7595109B2 (en) * 2001-04-12 2009-09-29 Eestor, Inc. Electrical-energy-storage unit (EESU) utilizing ceramic and integrated-circuit technologies for replacement of electrochemical batteries
US7914755B2 (en) * 2001-04-12 2011-03-29 Eestor, Inc. Method of preparing ceramic powders using chelate precursors
US7857972B2 (en) 2003-09-05 2010-12-28 Foret Plasma Labs, Llc Apparatus for treating liquids with wave energy from an electrical arc
US7622693B2 (en) * 2001-07-16 2009-11-24 Foret Plasma Labs, Llc Plasma whirl reactor apparatus and methods of use
US20030119658A1 (en) * 2001-12-21 2003-06-26 Conocophillips Company Recovery of rhenium from a spent catalyst via sublimation
WO2003070846A2 (en) 2002-02-15 2003-08-28 Supercritical Systems Inc. Drying resist with a solvent bath and supercritical co2
US6924086B1 (en) * 2002-02-15 2005-08-02 Tokyo Electron Limited Developing photoresist with supercritical fluid and developer
US7128840B2 (en) 2002-03-26 2006-10-31 Idaho Research Foundation, Inc. Ultrasound enhanced process for extracting metal species in supercritical fluids
US7169540B2 (en) 2002-04-12 2007-01-30 Tokyo Electron Limited Method of treatment of porous dielectric films to reduce damage during cleaning
US20040223882A1 (en) * 2002-09-27 2004-11-11 Ulrich Bonne Micro-plasma sensor system
US7011716B2 (en) * 2003-04-29 2006-03-14 Advanced Technology Materials, Inc. Compositions and methods for drying patterned wafers during manufacture of integrated circuitry products
US7485611B2 (en) * 2002-10-31 2009-02-03 Advanced Technology Materials, Inc. Supercritical fluid-based cleaning compositions and methods
US6880560B2 (en) * 2002-11-18 2005-04-19 Techsonic Substrate processing apparatus for processing substrates using dense phase gas and sonic waves
US20040112409A1 (en) * 2002-12-16 2004-06-17 Supercritical Sysems, Inc. Fluoride in supercritical fluid for photoresist and residue removal
US20040154647A1 (en) * 2003-02-07 2004-08-12 Supercritical Systems, Inc. Method and apparatus of utilizing a coating for enhanced holding of a semiconductor substrate during high pressure processing
WO2005038898A1 (en) * 2003-10-14 2005-04-28 Ekc Technology, Inc. Removal of post etch residues and copper contamination from low-k dielectrics using supercritical co2 with diketone additives
WO2005069955A2 (en) * 2004-01-21 2005-08-04 Idaho Research Foundation, Inc. Supercritical fluids in the formation and modification of nanostructures and nanocomposites
JP2007536730A (en) * 2004-05-07 2007-12-13 アドバンスド テクノロジー マテリアルズ，インコーポレイテッド Compositions and methods for drying patterned wafers during the manufacture of integrated circuit products
US7250374B2 (en) * 2004-06-30 2007-07-31 Tokyo Electron Limited System and method for processing a substrate using supercritical carbon dioxide processing
US7466536B1 (en) 2004-08-13 2008-12-16 Eestor, Inc. Utilization of poly(ethylene terephthalate) plastic and composition-modified barium titanate powders in a matrix that allows polarization and the use of integrated-circuit technologies for the production of lightweight ultrahigh electrical energy storage units (EESU)
US20110170232A1 (en) * 2004-08-13 2011-07-14 Eestor, Inc. Electrical energy storage unit and methods for forming same
US7307019B2 (en) * 2004-09-29 2007-12-11 Tokyo Electron Limited Method for supercritical carbon dioxide processing of fluoro-carbon films
US20060102590A1 (en) * 2004-11-12 2006-05-18 Tokyo Electron Limited Method for treating a substrate with a high pressure fluid using a preoxide-based process chemistry
US7491036B2 (en) * 2004-11-12 2009-02-17 Tokyo Electron Limited Method and system for cooling a pump
US20060102208A1 (en) * 2004-11-12 2006-05-18 Tokyo Electron Limited System for removing a residue from a substrate using supercritical carbon dioxide processing
US20060102204A1 (en) * 2004-11-12 2006-05-18 Tokyo Electron Limited Method for removing a residue from a substrate using supercritical carbon dioxide processing
JP2006142228A (en) * 2004-11-22 2006-06-08 Miyoshi Oil & Fat Co Ltd Solid waste disposal method
WO2007084116A2 (en) 2005-01-18 2007-07-26 Idaho Research Foundation, Inc. Method and system for recovering metal from metal-containing materials
US7291565B2 (en) * 2005-02-15 2007-11-06 Tokyo Electron Limited Method and system for treating a substrate with a high pressure fluid using fluorosilicic acid
US20060180174A1 (en) * 2005-02-15 2006-08-17 Tokyo Electron Limited Method and system for treating a substrate with a high pressure fluid using a peroxide-based process chemistry in conjunction with an initiator
US20060180572A1 (en) * 2005-02-15 2006-08-17 Tokyo Electron Limited Removal of post etch residue for a substrate with open metal surfaces
US8241708B2 (en) * 2005-03-09 2012-08-14 Micron Technology, Inc. Formation of insulator oxide films with acid or base catalyzed hydrolysis of alkoxides in supercritical carbon dioxide
US20060226117A1 (en) * 2005-03-29 2006-10-12 Bertram Ronald T Phase change based heating element system and method
US20060255012A1 (en) * 2005-05-10 2006-11-16 Gunilla Jacobson Removal of particles from substrate surfaces using supercritical processing
US7789971B2 (en) * 2005-05-13 2010-09-07 Tokyo Electron Limited Treatment of substrate using functionalizing agent in supercritical carbon dioxide
US20070012337A1 (en) * 2005-07-15 2007-01-18 Tokyo Electron Limited In-line metrology for supercritical fluid processing
US7648687B1 (en) 2006-06-15 2010-01-19 Eestor, Inc. Method of purifying barium nitrate aqueous solution
US8853116B2 (en) * 2006-08-02 2014-10-07 Eestor, Inc. Method of preparing ceramic powders
US7993611B2 (en) * 2006-08-02 2011-08-09 Eestor, Inc. Method of preparing ceramic powders using ammonium oxalate
US8145362B2 (en) 2006-08-04 2012-03-27 Eestor, Inc. Utility grid power averaging and conditioning
US20100285316A1 (en) * 2009-02-27 2010-11-11 Eestor, Inc. Method of Preparing Ceramic Powders
CA2752696A1 (en) * 2009-02-27 2010-09-02 Eestor, Inc. Reaction tube and hydrothermal processing for the wet chemical co-precipitation of oxide powders
CN101713714B (en) * 2009-12-29 2012-11-07 南京工业大学 Method for separating cadmium ion and lead ion from enrichment environmental water body by using bulk liquid membrane
CN102971258A (en) * 2010-01-20 2013-03-13 埃斯托股份有限公司 Purification of barium ion source
CN103388078A (en) * 2012-05-09 2013-11-13 台超萃取洗净精机股份有限公司 Fly ash utilization method and remover for removing dioxin homologue and soluble heavy metal from fly ash
WO2013177583A2 (en) * 2012-05-25 2013-11-28 Neumann Systems Group, Inc. System and method for selectively removing metals from industrial waste
CN103480351A (en) * 2012-06-13 2014-01-01 梁明在 Regeneration method for active carbon contaminated by metal or/and cleaning agent
MX359746B (en) 2012-07-03 2018-10-08 Veolia Water Solutions & Tech Metalloid contaminated water solution purification process for safe human consumption-rated reduction of contaminant concentration therein, by precipitation without oxidation.
CN102908803B (en) * 2012-11-09 2015-04-01 青岛中科华联新材料有限公司 Thin film extraction tank transmission device
CN103060556B (en) * 2012-12-27 2015-01-07 北京大学 A method for reverse extraction of uranyl ions from ionic liquid system by using a supercritical CO2 reverse extraction technique
US9597775B2 (en) 2013-10-30 2017-03-21 Us Synthetic Corporation Methods of at least partially removing at least one interstitial constituent from a polycrystalline diamond body using a removing agent including a supercritical fluid component
US10141079B2 (en) 2014-12-29 2018-11-27 Terrapower, Llc Targetry coupled separations
JP6647060B2 (en) * 2015-02-20 2020-02-14 国立大学法人横浜国立大学 Method for separating and recovering Nd and Dy
JP6418039B2 (en) * 2015-04-02 2018-11-07 トヨタ紡織株式会社 Fuel cell coolant, fuel cell cooling system, and fuel cell coolant filtration device
CA2999894A1 (en) 2015-09-30 2017-04-06 Terrapower, Llc Neutron reflector assembly for dynamic spectrum shifting
US10665356B2 (en) 2015-09-30 2020-05-26 Terrapower, Llc Molten fuel nuclear reactor with neutron reflecting coolant
US10867710B2 (en) 2015-09-30 2020-12-15 Terrapower, Llc Molten fuel nuclear reactor with neutron reflecting coolant
US10167202B2 (en) * 2016-02-23 2019-01-01 King Abdullah University Of Science And Technology Enhanced metal recovery through oxidation in liquid and/or supercritical carbon dioxide
CN106180167A (en) * 2016-08-03 2016-12-07 上海市环境工程设计科学研究院有限公司 A kind of method utilizing acidifying subcritical water to work in coordination with the pollution of heavy metal chelant repairing heavy metal in soil
CA3162414A1 (en) 2019-12-23 2021-07-01 Kent E. Wardle Molten fuel reactors and orifice ring plates for molten fuel reactors
CN112023437B (en) * 2020-08-11 2022-01-28 福建省华裕天恒科技有限公司 Rare earth oxide production extractant adds device
US11728052B2 (en) 2020-08-17 2023-08-15 Terra Power, Llc Fast spectrum molten chloride test reactors
CN112974412A (en) * 2021-02-23 2021-06-18 中国核动力研究设计院 Chemical decontamination method and device for radioactive pollution by supercritical carbon dioxide
CN113102485A (en) * 2021-03-24 2021-07-13 中国科学院工程热物理研究所 Heavy metal contaminated soil remediation system and method based on supercritical fluid
CN114985440A (en) * 2022-06-02 2022-09-02 中国人民解放军63653部队 Method for supercritical plutonium extraction
CN115385335A (en) * 2022-08-23 2022-11-25 浙江浙能技术研究院有限公司 Supercritical cleaning method for deeply purifying super-capacitive porous carbon material

Family Cites Families (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3882018A (en) * 1970-12-04 1975-05-06 Aerojet General Co Process for recovery of minerals from acidic streams
US4206132A (en) * 1971-09-24 1980-06-03 The United States Of America As Represented By The Secretary Of The Air Force Lanthanide chelate of a fluorinated ligand
US4015980A (en) * 1975-08-04 1977-04-05 General Mills Chemicals, Inc. Use of fluorinated β-diketones in the solvent extraction of zinc
US4058585A (en) * 1975-11-10 1977-11-15 General Mills Chemicals, Inc. Solvent extraction of metals from acidic solutions with quaternary ammonium salts of hydrogen ion exchange agents
US4051223A (en) * 1975-11-10 1977-09-27 General Mills Chemicals, Inc. Process for the recovery of magnesium
US4069273A (en) * 1977-01-24 1978-01-17 Chevron Research Company Dimerization of linear alpha-olefins
US4275039A (en) * 1980-01-17 1981-06-23 Interox Chemicals Limited Separation of tungsten and molybdenum by solvent extraction
JPS5920406A (en) * 1982-07-26 1984-02-02 Nippon Sanso Kk Production of ultrafine powder metal
US4529503A (en) * 1982-08-05 1985-07-16 Phillips Petroleum Company Demetallization of hydrocarbon containing feed streams with phosphorous compounds
US4563213A (en) * 1982-09-24 1986-01-07 Chevron Research Company Extraction and stripping cobalt values
US4464251A (en) * 1983-01-12 1984-08-07 Phillips Petroleum Company Removal of contaminants from organic compositions
US4457812A (en) * 1983-07-18 1984-07-03 Kerr-Mcgee Chemical Corporation Critical solvent separations in inorganic systems
US4547292A (en) * 1983-10-31 1985-10-15 General Electric Company Supercritical fluid extraction and enhancement for liquid liquid extraction processes
US4528100A (en) * 1983-10-31 1985-07-09 General Electric Company Process for producing high yield of gas turbine fuel from residual oil
US4518484A (en) * 1984-02-16 1985-05-21 Phillips Petroleum Company Metals removal with a light hydrocarbon and an organophosphorous compound
US4877530A (en) * 1984-04-25 1989-10-31 Cf Systems Corporation Liquid CO2 /cosolvent extraction
US4609043A (en) * 1984-10-22 1986-09-02 Mobil Oil Corporation Enhanced oil recovery using carbon dioxide
JPS61225139A (en) * 1985-03-28 1986-10-06 Shozaburo Saito Clathration separation using supercritical or pressure-liquefied gas as medium
US5169968A (en) * 1985-09-10 1992-12-08 Vitamins, Inc. Mass separation of liquid or soluble components from solid materials utilizing supercritical fluids
GB8702569D0 (en) * 1987-02-05 1987-03-11 Nat Res Dev Moiety for selective separation
DE3704307A1 (en) * 1987-02-12 1988-08-25 Dow Chemical Gmbh COMPLEX-FORMING RESIN OF THE GELTYPS AND ITS USE TO REDUCE THE CONCENTRATION OF MULTI-VALUE EARTH ALKALI AND / OR HEAVY METAL IONS IN SOLUTIONS
FR2614725B1 (en) * 1987-04-28 1992-10-30 Rhone Poulenc Chimie PROCESS FOR ELIMINATION OF RADIOACTIVITY OF EFFLUENTS BY LIQUID-LIQUID EXTRACTION
US5045220A (en) * 1987-06-03 1991-09-03 Chevron Research Company Increasing the viscosity of CO2 solutions
US4898673A (en) * 1987-07-11 1990-02-06 Vitamins, Inc. Dynamic supercritical fluid extraction system
US4911941A (en) * 1988-08-05 1990-03-27 General Foods Corporation Method for decaffeinating coffee with a supercritical fluid
US4916108A (en) * 1988-08-25 1990-04-10 Westinghouse Electric Corp. Catalyst preparation using supercritical solvent
JP2584498B2 (en) * 1988-09-05 1997-02-26 工業技術院長 New crown ether compounds and separating agents
US4964995A (en) * 1989-06-16 1990-10-23 Midwest Research Institute Supercritical separation process for complex organic mixtures
US5087370A (en) * 1990-12-07 1992-02-11 Clean Harbors, Inc. Method and apparatus to detoxify aqueous based hazardous waste
US5356538A (en) * 1991-06-12 1994-10-18 Idaho Research Foundation, Inc. Supercritical fluid extraction
US5274129A (en) * 1991-06-12 1993-12-28 Idaho Research Foundation, Inc. Hydroxamic acid crown ethers
US5194582A (en) * 1992-08-21 1993-03-16 Phillips Petroleum Company Process to deodorize an odorous poly(mono-1-olefin)
US5606724A (en) * 1995-11-03 1997-02-25 Idaho Research Foundation, Inc. Extracting metals directly from metal oxides

Also Published As

Publication number Publication date
CN1077803C (en) 2002-01-16
AU3269895A (en) 1996-01-04
EP0762918A1 (en) 1997-03-19
DE69431260D1 (en) 2002-10-02
CA2191227C (en) 2001-06-05
EP0764042B1 (en) 2002-11-13
JP2002508697A (en) 2002-03-19
CN1152260A (en) 1997-06-18
EP0762918B1 (en) 2002-08-28
EP0764042A4 (en) 1997-08-27
CA2191243A1 (en) 1995-12-14
JPH10501732A (en) 1998-02-17
EP0764042A1 (en) 1997-03-26
US5730874A (en) 1998-03-24
KR970703184A (en) 1997-07-03
CA2191243C (en) 2002-04-02
WO1995033542A1 (en) 1995-12-14
DE69528831D1 (en) 2002-12-19
CN1152884A (en) 1997-06-25
CN1082825C (en) 2002-04-17

Similar Documents

Publication Publication Date Title
CA2191227A1 (en) Fluid extraction of metals and/or metalloids
WO2004038731A3 (en) Radioactive decontamination and translocation method
GR3032029T3 (en) Method for extraction of undesirable substances in a gas.
CA2006453A1 (en) An extraction process and apparatus to remove pcb's from soil and sludge
BR9406465A (en) Process to remove separate and concentrate metals
LT96152A (en) Separating and concentrating certain ions using ion-binding ligands bonded to membranes
US5437848A (en) Recovery of metal values from process residues
AP1894A (en) Method and system for assay and removal of harmful toxins during processing of tobacco products.
ES8604661A1 (en) Waste disposal process
ZA964770B (en) Process for removing and recovering ammonia from organic metal extractant solutions in a liquid-liquid metal extraction process
Shah et al. Lead removal from foundry waste by solvent extraction
CA2204112A1 (en) Processes for separating cesium from industrial streams containing other alkali metals using poly(hydroxyarylene) polymeric resins
KR970703183A (en) Fluid extraction of metals and / or metalloids (FLUID EXTRACTION OF METALS AND / OR METALLOIDS)
MY109384A (en) Removal of radioactivity from zircon.
JPS5550444A (en) Removing method for tetravalent cerium in aqueous solution
Wallbank The Removal of Heavy Metals From Waste Water by Epofloc L 1
KR920018778A (en) Decontamination method and decontamination apparatus by methylene chloride of radioactive contaminants
Chen et al. Bicarbonate of Soda Blasting Technology for Aircraft Wheel Depainting
JPS5579840A (en) Removing method for iron in thiocyanogen type quaternary ammonium salt extracting solvent
JPS64102A (en) Removal of solvent from chlorinated resin
JPS5582798A (en) Removing method for membrane contaminant
Edita et al. Methods of arsenic waste treatment and disposal- case studies
MX9705960A (en) Leaching contaminants from post-consumer polyester.
CA2176864A1 (en) Membrane-assisted leaching process and apparatus for the removal of metals from soil
Jeffers et al. Polymer beads containing an immobilized extractant for sorbing metals from solution

Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed