WO2002026617A3 - Process for extracting and purifying naturally occurring zeolite - Google Patents

Process for extracting and purifying naturally occurring zeolite Download PDF

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Publication number
WO2002026617A3
WO2002026617A3 PCT/US2001/030487 US0130487W WO0226617A3 WO 2002026617 A3 WO2002026617 A3 WO 2002026617A3 US 0130487 W US0130487 W US 0130487W WO 0226617 A3 WO0226617 A3 WO 0226617A3
Authority
WO
WIPO (PCT)
Prior art keywords
extracting
naturally occurring
occurring zeolite
purifying naturally
zeolite
Prior art date
Application number
PCT/US2001/030487
Other languages
French (fr)
Other versions
WO2002026617A2 (en
Inventor
Billy D Fellers
Original Assignee
Basic Resources 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 Basic Resources Inc filed Critical Basic Resources Inc
Priority to JP2002530408A priority Critical patent/JP2004515336A/en
Priority to AU2001293182A priority patent/AU2001293182A1/en
Priority to MXPA03002655A priority patent/MXPA03002655A/en
Priority to EP01973623A priority patent/EP1322426A4/en
Publication of WO2002026617A2 publication Critical patent/WO2002026617A2/en
Publication of WO2002026617A3 publication Critical patent/WO2002026617A3/en

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Classifications

    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B39/00Compounds having molecular sieve and base-exchange properties, e.g. crystalline zeolites; Their preparation; After-treatment, e.g. ion-exchange or dealumination
    • C01B39/02Crystalline aluminosilicate zeolites; Isomorphous compounds thereof; Direct preparation thereof; Preparation thereof starting from a reaction mixture containing a crystalline zeolite of another type, or from preformed reactants; After-treatment thereof
    • C01B39/26Mordenite type
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D21/00Separation of suspended solid particles from liquids by sedimentation
    • B01D21/02Settling tanks with single outlets for the separated liquid
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D21/00Separation of suspended solid particles from liquids by sedimentation
    • B01D21/24Feed or discharge mechanisms for settling tanks
    • B01D21/2433Discharge mechanisms for floating particles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D21/00Separation of suspended solid particles from liquids by sedimentation
    • B01D21/24Feed or discharge mechanisms for settling tanks
    • B01D21/245Discharge mechanisms for the sediments
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D21/00Separation of suspended solid particles from liquids by sedimentation
    • B01D21/30Control equipment
    • B01D21/34Controlling the feed distribution; Controlling the liquid level ; Control of process parameters
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B03SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03BSEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B5/00Washing granular, powdered or lumpy materials; Wet separating
    • B03B5/62Washing granular, powdered or lumpy materials; Wet separating by hydraulic classifiers, e.g. of launder, tank, spiral or helical chute concentrator type
    • B03B5/623Upward current classifiers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B03SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03BSEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B7/00Combinations of wet processes or apparatus with other processes or apparatus, e.g. for dressing ores or garbage
    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01BNON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B39/00Compounds having molecular sieve and base-exchange properties, e.g. crystalline zeolites; Their preparation; After-treatment, e.g. ion-exchange or dealumination
    • C01B39/02Crystalline aluminosilicate zeolites; Isomorphous compounds thereof; Direct preparation thereof; Preparation thereof starting from a reaction mixture containing a crystalline zeolite of another type, or from preformed reactants; After-treatment thereof

Abstract

A process for extracting and purifying naturally occurring zeolite from ores in the presence of other mineral phases by using mechanical dispersion and differential suspension to remove a majority of the clay content of the ore. The process continues by removal of contaminants with a higher mass to surface area ratio than that of the desired zeolite product by employing the properties of demineralized water in combiantion with a countercurrent flow separation column. No chemical flocculating or flaotation agents are employed in the process.
PCT/US2001/030487 2000-09-27 2001-09-27 Process for extracting and purifying naturally occurring zeolite WO2002026617A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2002530408A JP2004515336A (en) 2000-09-27 2001-09-27 Method for extracting and purifying naturally produced zeolite
AU2001293182A AU2001293182A1 (en) 2000-09-27 2001-09-27 Process for extracting and purifying naturally occurring zeolite
MXPA03002655A MXPA03002655A (en) 2000-09-27 2001-09-27 Process for extracting and purifying naturally occurring zeolite.
EP01973623A EP1322426A4 (en) 2000-09-27 2001-09-27 Process for extracting and purifying naturally occurring zeolite

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/672,065 US6662951B1 (en) 2000-09-27 2000-09-27 Process for extracting and purifying naturally occurring zeolite
US09/672,065 2000-09-27

Publications (2)

Publication Number Publication Date
WO2002026617A2 WO2002026617A2 (en) 2002-04-04
WO2002026617A3 true WO2002026617A3 (en) 2002-06-13

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2001/030487 WO2002026617A2 (en) 2000-09-27 2001-09-27 Process for extracting and purifying naturally occurring zeolite

Country Status (7)

Country Link
US (6) US6662951B1 (en)
EP (1) EP1322426A4 (en)
JP (1) JP2004515336A (en)
CN (1) CN1257774C (en)
AU (1) AU2001293182A1 (en)
MX (1) MXPA03002655A (en)
WO (1) WO2002026617A2 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6662951B1 (en) * 2000-09-27 2003-12-16 Basic Resources, Inc. Process for extracting and purifying naturally occurring zeolite
ES2234420B1 (en) * 2003-12-03 2006-11-01 Tolsa, S.A. PROCEDURE TO PREPARE A PRODUCT OF EASY RHEOLOGICAL GRADE DISPERSION OF A PSEUDOLAMINARY SILICATE, PRODUCT AS OBTAINED, AND METHODS OF USE OF THE PRODUCT.
CN1714940A (en) * 2005-06-29 2006-01-04 周涛 Separation method of mineral elements
US8322534B2 (en) * 2009-03-25 2012-12-04 Northwestern University Purification of metal-organic framework materials
US9174197B2 (en) 2009-11-13 2015-11-03 Zeotech Corporation Fluid filtration medium
US8338329B2 (en) 2009-11-13 2012-12-25 Zeotech Corporation Fluid filtration medium
CN102489389A (en) * 2011-12-26 2012-06-13 崔建 Suspension screening unit for resins
DE102012015064B4 (en) * 2012-07-31 2018-08-02 Joh. Heinr. Bornemann Gmbh Method for operating a multi-phase pump and device thereto
KR101355583B1 (en) * 2013-10-04 2014-01-24 한국지질자원연구원 Simplicity valuable mineral decollator and valuable mineral separating method using thereof
MX2019005197A (en) 2016-11-01 2019-10-07 Cidra Corporate Services Llc Reactor system for separation and enrichment of minerals from a slurry containing minerals and other materials.
CN106809849A (en) * 2017-02-15 2017-06-09 上海浦东路桥建设股份有限公司 For the zeolite and its extracting method of purified industrial sewage
GB201718881D0 (en) * 2017-11-15 2017-12-27 Anglo American Services (Uk) Ltd A method for mining and processing of an ore
WO2019200278A1 (en) 2018-04-12 2019-10-17 Revelation Health Llc Purification of clinoptilolite
US20240076761A1 (en) * 2021-01-29 2024-03-07 Georgia State University Research Foundation Identifying and extracting rare earth elements from mining operations

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4222857A (en) * 1977-12-15 1980-09-16 Mccarthy James R Apparatus for separating selected particulate materials from a mixture of solids and liquids
US4460477A (en) * 1982-08-25 1984-07-17 Calgon Corporation Use of a carboxylic functional polyampholyte to inhibit the precipitation and deposit of scale in aqueous systems
US4510254A (en) * 1984-01-23 1985-04-09 Morris Horton H Method of treating zeolite ores to remove discoloring impurities and improve its brightness and resulting finely ground zeolite
US5084186A (en) * 1989-06-20 1992-01-28 Gilchrist Ian C R Sedimentation control process
US5132027A (en) * 1990-02-14 1992-07-21 Mitsubishi Jukogyo Kabushiki Kaisha Method and apparatus for treating absorbent solution slurry containing fly ash
US5143599A (en) * 1988-03-21 1992-09-01 Kaolin Industries, Ltd. Process for refining kaolin
US5161694A (en) * 1990-04-24 1992-11-10 Virginia Tech Intellectual Properties, Inc. Method for separating fine particles by selective hydrophobic coagulation
US5616251A (en) * 1995-11-20 1997-04-01 Kareem Batarseh Methods to prevent and treat acid mine drainage and to remove metals and non-metals from aqueous sources
US5804077A (en) * 1995-02-28 1998-09-08 Smith; Russell G. Increasing settling rate of fine solids in oil sand tailings
US5840113A (en) * 1997-04-30 1998-11-24 J.M. Huber Corporation Treated clay product, methods of making and using and products therefrom

Family Cites Families (110)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1570854A (en) 1922-09-12 1926-01-26 Carl H Nordell Means for separating, washing, and discharging comminuted solid material immersed inliquids
US2173909A (en) 1937-06-28 1939-09-26 Ninol Inc Ore dressing
US3206127A (en) 1962-11-06 1965-09-14 Freeport Sulphur Co Process for upgrading mica
US3189557A (en) 1964-04-06 1965-06-15 American Tansul Company Method of treatment of ore and product
US3320027A (en) 1964-05-05 1967-05-16 Huber Corp J M Clay bleaching under non-oxidizing atmospheres
US3439801A (en) 1965-10-15 1969-04-22 Freeport Sulphur Co Process for improving the brightness of clay
US3891580A (en) 1966-12-06 1975-06-24 Freeport Minerals Co Reaction of fine media miller strach or protein with a polymer or polymerizable monomer
US3572500A (en) 1968-06-18 1971-03-30 Cities Service Co Beneficiation of diatomaceous earth
US3713593A (en) 1970-08-11 1973-01-30 Freeport Sulphur Co Fine media milling process
DE2334804B1 (en) 1973-07-09 1975-01-02 Pluss Stauffer Ag Process for the wet grinding of minerals
US3961971A (en) 1973-05-21 1976-06-08 J. M. Huber Corporation Method for improving brightness of kaolinite clays including iron pyrites
DE2354432C3 (en) * 1973-10-31 1985-05-09 Degussa Ag, 6000 Frankfurt Process for improving the wettability of natural or synthetic zeolites
US3902993A (en) 1974-02-20 1975-09-02 Mobil Oil Corp Flotation separation of crystalline aluminosilicate zeolite
US4055485A (en) 1974-10-08 1977-10-25 Anglo-American Clays Corporation Method for improving clay brightness utilizing magnetic separation
US3974067A (en) 1974-10-08 1976-08-10 Anglo-American Clays Corporation Method for improving clay brightness utilizing magnetic separation
US3980240A (en) 1975-04-11 1976-09-14 Anglo-American Clays Corporation Brightening of natural calcitic ores
US3990642A (en) 1975-04-11 1976-11-09 Anglo-American Clays Corporation Brightening of natural dolomitic ores
US4033863A (en) 1975-12-19 1977-07-05 Deister Concentrator Company Inc. Apparatus for separating high gravity from low gravity fractions of a coal or an ore
US4281799A (en) 1976-09-27 1981-08-04 J. M. Huber Corporation Process for improved magnetic beneficiation of clays
US4078941A (en) 1976-12-06 1978-03-14 Yara Engineering Corporation High bulking calcined clay pigments and methods of making the same
JPS5725719Y2 (en) 1977-01-13 1982-06-04
US4299807A (en) 1978-04-17 1981-11-10 Yara Engineering Corporation Methods of producing kaolin pigments
US4165839A (en) * 1978-04-19 1979-08-28 Hitachi Chemical Company, Ltd. Method for disintegrating mica flakes and apparatus used therefor
US4227920A (en) 1978-07-18 1980-10-14 Yara Engineering Corporation Methods of clay benefication
US4247524A (en) 1979-10-01 1981-01-27 Atlantic Richfield Company Preparation of zeolite A by hydrothermal treatment of clinoptilolite
US4419228A (en) 1980-08-25 1983-12-06 Anglo-American Clays Corporation Process for producing high brightness clays utilizing magnetic beneficiation and calcining
US4468317A (en) 1980-12-15 1984-08-28 Anglo-American Clays Corporation Selective rheological separation of clays
US4401634A (en) 1982-01-28 1983-08-30 Atlantic Richfield Company Two step process for the preparation of zeolite A by hydrothermal treatment of clinoptilolite
US4401633A (en) 1982-01-28 1983-08-30 Atlantic Richfield Company Two step process for the preparation of zeolite A by hydrothermal treatment of heulandite
US4430209A (en) 1982-02-16 1984-02-07 The Celotex Corporation Method and apparatus for elutriation of shot from mineral fiber
US4428919A (en) 1982-05-03 1984-01-31 Ppg Industries, Inc. Method for separating particulate calcium hypochlorite and sodium chloride
US4492628A (en) 1982-08-25 1985-01-08 Freeport Kaolin Company Method of treating clay to improve its whiteness
US4451440A (en) 1982-10-28 1984-05-29 Georgia Kaolin Company, Inc. Utilization of ion exchange resin in the processing of kaolins
US4533464A (en) 1983-05-25 1985-08-06 Linatex Corporation Of America Teeter bed zone density control device and method
US4554066A (en) 1984-01-04 1985-11-19 Turbitt David Mark Density classification of particulate materials by elutriation methods and apparatus
US4629556A (en) 1984-11-29 1986-12-16 Thiele Kaolin Company Purification of kaolin clay by froth flotation using hydroxamate collectors
US4618374A (en) 1985-03-29 1986-10-21 Georgia Kaolin Company, Inc. High solids processing of kaolinitic clays with post-leaching oxidation
US4851048A (en) 1985-07-12 1989-07-25 E.C.C. America Inc. Structured kaolin pigment and process for manufacture thereof
US4703025A (en) 1985-09-10 1987-10-27 Mobil Oil Corporation Method for purifying zeolitic material
EP0242218B1 (en) 1986-04-17 1990-08-01 Babcock-Hitachi Kabushiki Kaisha Coal-water slurry producing system
US4989794A (en) 1986-07-16 1991-02-05 Alcan International Limited Method of producing fine particles
US4781298A (en) 1986-10-07 1988-11-01 Engelhard Corporation Process for beneficiating clay at high solids
US4789464A (en) 1987-08-20 1988-12-06 Kuryluk Michael H Mineral separator
JPH01159029A (en) 1987-12-16 1989-06-22 Toyota Motor Corp Exhaust gas purification apparatus of diesel engines
US4943324A (en) 1988-05-23 1990-07-24 Georgia Kaolin Company, Inc. High performance paper filler and method of producing same
US5085707A (en) 1988-05-23 1992-02-04 Georgia Kaolin Company, Inc. Defined and delaminated kaolin product
JP2655422B2 (en) * 1988-06-30 1997-09-17 日本電気株式会社 Individually selected call receiver with display
FR2640139A1 (en) * 1988-12-14 1990-06-15 Delagrange Laboratoires APPLICATION OF BENZAMIDES SUBSTITUTED AS GASTROMOTORS
US4935391A (en) 1989-03-31 1990-06-19 Fmc Corporation Process for preparing a purified mineral coating
US4961843A (en) 1989-04-10 1990-10-09 Lewis Robert M Lewis econosizer for hydraulically classifying particles
CA2013619C (en) 1989-05-04 1996-06-18 Steven A. Brown Cationic processing of kaolin ores
US4997550A (en) 1989-11-13 1991-03-05 Ecc America Inc. Method for improved flotation of discoloring impurities from kaolinite
US5116587A (en) 1990-01-18 1992-05-26 Board Of Trustees Operating Michigan State University Layered double hydroxide sorbents for the removal of sox from flue gas resulting from coal combustion
US5114691A (en) 1990-01-18 1992-05-19 Board Of Trustees Operating Michigan State University Process using sorbents for the removal of SOx from flue gas
US5114898A (en) 1990-01-18 1992-05-19 Board Of Trustees Operating Michigan State University Layered double hydroxide sorbents for the removal of SOx from flue gas and other gas streams
JPH0674144B2 (en) * 1990-02-28 1994-09-21 島根県 Purification method of natural zeolite
US5151124A (en) 1990-06-04 1992-09-29 Ecc America Inc. Method for forming aggregated kaolin pigment
US5128027A (en) 1990-06-07 1992-07-07 Naguib Halaka Method for removing mineral slimes from kaolin clay
IT1243828B (en) 1990-10-11 1994-06-28 Consiglio Nazionale Ricerche PROCESS FOR THE REMOVAL OF IRON FROM CONCENTRATES OF CAOLINE, QUARTZ AND OTHER MATERIALS OF INDUSTRIAL INTEREST.
US5143027A (en) * 1991-05-01 1992-09-01 Land & Sea, Inc. Reed valves for two stroke engines
US5266539A (en) 1991-05-20 1993-11-30 Consiglio Nazionale Delle Ricerche Process for the deferrization of kaolin, quartzose sand, paper filler, white pigment, pumice and electronics materials
AU657778B2 (en) 1991-10-11 1995-03-23 Engelhard Corporation In situ method for producing hydrosulfite bleach and use thereof
US5297754A (en) * 1992-06-22 1994-03-29 International Business Machines Corporation Tape reel with brake and dust shield
ATE158202T1 (en) 1992-07-07 1997-10-15 Ecc Int Ltd DIFFERENTIAL GRINDING
US6010673A (en) 1992-09-21 2000-01-04 Toyota Jidosha Kabushiki Kaisha Method for purifying exhaust gas
US5785938A (en) 1992-11-16 1998-07-28 Board Of Trustees Operating Michigan State University Process using recyclable sorbents for the removal of sox from flue gases and other gas streams
US5358701A (en) 1992-11-16 1994-10-25 Board Of Trustees Operating Michigan State University Process of using layered double hydroxides as low temperature recyclable sorbents for the removal of SOx from flue gas and other gas streams
US5342443A (en) 1993-04-06 1994-08-30 Engelhard Corporation Method for bleaching kaolin clay
US5965481A (en) 1993-05-14 1999-10-12 Institut Francais Du Petrole Process for preparing a catalyst suitable for the treatment of exhaust gases from internal combustion engines
EP0671211B1 (en) 1993-09-29 1999-11-24 Honda Giken Kogyo Kabushiki Kaisha Catalyst for exhaust emission control and method for producing the same
JP3447384B2 (en) 1993-09-29 2003-09-16 本田技研工業株式会社 Exhaust gas purification catalyst
US5397754A (en) 1993-10-21 1995-03-14 Impex Method of brightening kaolin clay by thermal oxidative decarboxylation of organic contaminants
US5454865A (en) 1993-12-23 1995-10-03 Ecc International Inc. Method for preparing refined kaolin in clay products
US5968462A (en) 1994-02-04 1999-10-19 Toyota Jidosha Kabushiki Kaisha Process for purifying exhaust gases
JP3363564B2 (en) 1994-02-04 2003-01-08 トヨタ自動車株式会社 Exhaust gas purification catalyst
US6004521A (en) 1994-02-23 1999-12-21 Toyota Jidosha Kabushiki Kaisha Catalyst for purifying exhaust gases
US5776423A (en) 1994-05-10 1998-07-07 Engelhard Corporation Trimetallic zeolite catalyst and method of NOx abatement using the same
JP3129377B2 (en) 1994-08-12 2001-01-29 三菱重工業株式会社 Exhaust gas purification catalyst
JP3391587B2 (en) 1994-11-18 2003-03-31 株式会社小松製作所 Exhaust denitration equipment for diesel engines
US5603411A (en) 1994-12-07 1997-02-18 Engelhard Corporation Method for separating mixture of finely divided minerals
EP0739651B1 (en) 1995-04-17 2001-08-16 ENITECNOLOGIE S.p.a. Nitrogen oxides reduction catalyst and process for reducing nitrogen oxides in exhaust gas
GB9511412D0 (en) * 1995-06-06 1995-08-02 Johnson Matthey Plc Improvements in emission control
US5968466A (en) 1995-06-07 1999-10-19 Asec Manufacturing Copper-silver zeolite catalysts in exhaust gas treatment
EP0761289A3 (en) 1995-09-08 1997-05-02 Riken Kk Exhaust gas cleaner and method for cleaning exhaust gas
DE69629258T2 (en) 1995-10-06 2004-04-22 Enitecnologie S.P.A. Catalyst and method for removing nitrogen oxides in exhaust gas
US5685900A (en) 1995-10-18 1997-11-11 Ecc International Inc. Method for beneficiating discolored kaolin to produce high brightness coating clay
US6030590A (en) 1995-12-26 2000-02-29 Cosmo Research Institute Reduction purification method of nitrogen oxide-containing exhaust gas
US5900383A (en) * 1996-01-02 1999-05-04 New Life Catalyst, Inc. Process for increasing the activity of zeolite containing particulate solids
JP3702544B2 (en) 1996-03-22 2005-10-05 トヨタ自動車株式会社 Exhaust gas purification device for internal combustion engine
JP3713831B2 (en) 1996-04-19 2005-11-09 トヨタ自動車株式会社 Exhaust gas purification device for internal combustion engine
US5758938A (en) * 1996-07-24 1998-06-02 Stirling Thermal Motors, Inc. Solar concentrator elevational drive mechanism
JP3396378B2 (en) 1996-08-15 2003-04-14 トヨタ自動車株式会社 Method and apparatus for purifying exhaust gas of an internal combustion engine
JP3557815B2 (en) 1996-11-01 2004-08-25 トヨタ自動車株式会社 Exhaust gas purification device for internal combustion engine
JPH10169434A (en) 1996-12-09 1998-06-23 Ngk Insulators Ltd Exhaust emission control method and exhaust emission control system used for the same
US6029442A (en) 1996-12-18 2000-02-29 Litex, Inc. Method and apparatus for using free radicals to reduce pollutants in the exhaust gases from the combustion of fuel
US5767470A (en) 1997-01-06 1998-06-16 Cha; Chang Yul Process and device for removal of combustion pollutants under high oxygen conditions
US5820844A (en) * 1997-01-29 1998-10-13 Cyprus Amax Minerals Company Method for the production of a purified MoO3 composition
US5939037A (en) 1997-02-07 1999-08-17 Ford Global Technologies, Inc. Sulfur tolerant NOx traps highly loaded with sodium or potassium
JP4092441B2 (en) 1997-02-24 2008-05-28 日産自動車株式会社 Exhaust gas purification catalyst
IN186652B (en) 1997-03-10 2001-10-20 Indian Petrochemicals Corp Ltd
US5976475A (en) 1997-04-02 1999-11-02 Clean Diesel Technologies, Inc. Reducing NOx emissions from an engine by temperature-controlled urea injection for selective catalytic reduction
US5830818A (en) 1997-04-23 1998-11-03 Thiele Kaolin Company Process for the microwave beneficiation of discolored kaolin clay materials
US6028023A (en) 1997-10-20 2000-02-22 Bulldog Technologies U.S.A., Inc. Process for making, and use of, anionic clay materials
US5950421A (en) 1997-12-18 1999-09-14 Ford Global Technologies, Inc. Tungsten-modified platinum NOx traps for automotive emission reduction
US5983628A (en) 1998-01-29 1999-11-16 Chrysler Corporation System and method for controlling exhaust gas temperatures for increasing catalyst conversion of NOx emissions
US5968463A (en) 1998-06-12 1999-10-19 Ford Global Technologies, Inc. NOx selective reduction catalyst with broadened active temperature range
US5942857A (en) 1998-07-29 1999-08-24 Hsu; Fu-Hsien Bulb-shaped light string flasher
JP2000143233A (en) * 1998-11-04 2000-05-23 Taiheiyo Tanko Kk Production of high purity zeolite
US6357678B1 (en) * 1999-10-29 2002-03-19 Albermarle Corporation Process for producing ultra finely-divided zeolite powder
US6662951B1 (en) * 2000-09-27 2003-12-16 Basic Resources, Inc. Process for extracting and purifying naturally occurring zeolite

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4222857A (en) * 1977-12-15 1980-09-16 Mccarthy James R Apparatus for separating selected particulate materials from a mixture of solids and liquids
US4460477A (en) * 1982-08-25 1984-07-17 Calgon Corporation Use of a carboxylic functional polyampholyte to inhibit the precipitation and deposit of scale in aqueous systems
US4510254A (en) * 1984-01-23 1985-04-09 Morris Horton H Method of treating zeolite ores to remove discoloring impurities and improve its brightness and resulting finely ground zeolite
US5143599A (en) * 1988-03-21 1992-09-01 Kaolin Industries, Ltd. Process for refining kaolin
US5084186A (en) * 1989-06-20 1992-01-28 Gilchrist Ian C R Sedimentation control process
US5132027A (en) * 1990-02-14 1992-07-21 Mitsubishi Jukogyo Kabushiki Kaisha Method and apparatus for treating absorbent solution slurry containing fly ash
US5161694A (en) * 1990-04-24 1992-11-10 Virginia Tech Intellectual Properties, Inc. Method for separating fine particles by selective hydrophobic coagulation
US5804077A (en) * 1995-02-28 1998-09-08 Smith; Russell G. Increasing settling rate of fine solids in oil sand tailings
US5616251A (en) * 1995-11-20 1997-04-01 Kareem Batarseh Methods to prevent and treat acid mine drainage and to remove metals and non-metals from aqueous sources
US5840113A (en) * 1997-04-30 1998-11-24 J.M. Huber Corporation Treated clay product, methods of making and using and products therefrom

Also Published As

Publication number Publication date
US7004328B2 (en) 2006-02-28
AU2001293182A1 (en) 2002-04-08
WO2002026617A2 (en) 2002-04-04
US20060115419A1 (en) 2006-06-01
JP2004515336A (en) 2004-05-27
CN1257774C (en) 2006-05-31
US20060115420A1 (en) 2006-06-01
US6662951B1 (en) 2003-12-16
US20040045902A1 (en) 2004-03-11
EP1322426A4 (en) 2006-07-26
US20060102526A1 (en) 2006-05-18
CN1469780A (en) 2004-01-21
EP1322426A2 (en) 2003-07-02
US20060115418A1 (en) 2006-06-01
MXPA03002655A (en) 2005-11-23

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