WO2006123284A3 - Production of hydrotalcite - Google Patents

Production of hydrotalcite Download PDF

Info

Publication number
WO2006123284A3
WO2006123284A3 PCT/IB2006/051514 IB2006051514W WO2006123284A3 WO 2006123284 A3 WO2006123284 A3 WO 2006123284A3 IB 2006051514 W IB2006051514 W IB 2006051514W WO 2006123284 A3 WO2006123284 A3 WO 2006123284A3
Authority
WO
WIPO (PCT)
Prior art keywords
bivalent
sludge
production
particulate compound
trivalent
Prior art date
Application number
PCT/IB2006/051514
Other languages
French (fr)
Other versions
WO2006123284A2 (en
Inventor
Frederik Johannes Labuschagne
Ernst Werner Giesekke
Schalkwyk Johannes Daniel Van
Original Assignee
Frederik Johannes Labuschagne
Ernst Werner Giesekke
Schalkwyk Johannes Daniel Van
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 Frederik Johannes Labuschagne, Ernst Werner Giesekke, Schalkwyk Johannes Daniel Van filed Critical Frederik Johannes Labuschagne
Publication of WO2006123284A2 publication Critical patent/WO2006123284A2/en
Publication of WO2006123284A3 publication Critical patent/WO2006123284A3/en
Priority to ZA2007/09947A priority Critical patent/ZA200709947B/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G9/00—Compounds of zinc
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
    • C01B13/14—Methods for preparing oxides or hydroxides in general
    • C01B13/36—Methods for preparing oxides or hydroxides in general by precipitation reactions in aqueous solutions
    • C01B13/366—Methods for preparing oxides or hydroxides in general by precipitation reactions in aqueous solutions by hydrothermal processing
    • 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
    • C01F7/00—Compounds of aluminium
    • C01F7/78—Compounds containing aluminium and two or more other elements, with the exception of oxygen and hydrogen
    • C01F7/784—Layered double hydroxide, e.g. comprising nitrate, sulfate or carbonate ions as intercalating anions
    • C01F7/785—Hydrotalcite
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2002/00—Crystal-structural characteristics
    • C01P2002/20—Two-dimensional structures
    • C01P2002/22—Two-dimensional structures layered hydroxide-type, e.g. of the hydrotalcite-type

Abstract

This invention relates to a process for producing hydrotaicite of the general formula: AwBx(OH)yCz.nH2O wherein A is a bivalent metal cation; B is a trivalent cation; and C is a mono or multivalent anion and: 0 < z ≤ x ≤ 4 ≤ w ≤ 1/2y and 0 ≤ n ≤ 12. The process includes the steps of providing a particulate compound selected from the group consisting of bivalent and trivalent metal oxides, hydroxides and carbonates; mixing the particulate compound with a water source and a carbonate source in the form of an alkali metal bicarbonate, to form a sludge, and subjecting the sludge to hydro/thermal treatment to induce crystallisation and formation of hydrøtaldte. in the case that the bivalent meÊal is Mg, run- of-roine mineral rrtagnesrte, is used as raw material for the production of hydrotafcfe.
PCT/IB2006/051514 2005-05-19 2006-05-15 Production of hydrotalcite WO2006123284A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ZA2007/09947A ZA200709947B (en) 2005-05-19 2007-11-19 Production of hydrotalcite

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA2005/04040 2005-05-19
ZA200504040 2005-05-19

Publications (2)

Publication Number Publication Date
WO2006123284A2 WO2006123284A2 (en) 2006-11-23
WO2006123284A3 true WO2006123284A3 (en) 2007-07-19

Family

ID=37431646

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2006/051514 WO2006123284A2 (en) 2005-05-19 2006-05-15 Production of hydrotalcite

Country Status (2)

Country Link
WO (1) WO2006123284A2 (en)
ZA (1) ZA200709947B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101774548B (en) * 2010-03-15 2011-04-27 北京泰克来尔科技有限公司 Recycling technology of mother solution obtained by preparing layered composition metal hydroxide by coprecipitation method
WO2013070054A1 (en) * 2011-11-11 2013-05-16 Instituto Nacional De Investigaciones Nucleares Method for obtaining hydrogen, hydrotalcite and aluminium hydroxide from a first reaction between a magnesium-aluminium alloy and oxygen, and a second reaction between the magnesium-aluminium mixed oxide with water and dissolved carbonates
CN102924044B (en) * 2012-11-08 2014-01-01 沈阳建筑大学 Direct hydrothermal method for boric sludge solidification

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4904457A (en) * 1974-03-30 1990-02-27 Aluminum Company Of America Synthetic hydrotalcite
US5364828A (en) * 1992-10-21 1994-11-15 Minerals Technologies Spheroidal aggregate of platy synthetic hydrotalcite
US5578286A (en) * 1994-04-29 1996-11-26 Aluminum Company Of America Two powder synthesis of hydrotalcite-like compounds with divalent or polyvalent organic anions
US20040141907A1 (en) * 2001-04-19 2004-07-22 Max Eisgruber Method for producing hydrotalcites

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4904457A (en) * 1974-03-30 1990-02-27 Aluminum Company Of America Synthetic hydrotalcite
US5364828A (en) * 1992-10-21 1994-11-15 Minerals Technologies Spheroidal aggregate of platy synthetic hydrotalcite
US5578286A (en) * 1994-04-29 1996-11-26 Aluminum Company Of America Two powder synthesis of hydrotalcite-like compounds with divalent or polyvalent organic anions
US20040141907A1 (en) * 2001-04-19 2004-07-22 Max Eisgruber Method for producing hydrotalcites

Also Published As

Publication number Publication date
WO2006123284A2 (en) 2006-11-23
ZA200709947B (en) 2014-01-29

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