METHOD FOR PRODUCING AN ANION-EXCHANGING MINERAL AND USE OF SAID MINERAL

Minerals that reversibly fix ions, in particular NO3-, i.e. that can exchange one anion for another anion can be used as fertilizers and soil conditioners, as well as for the purification and treatment of water, particularly for the elimination of nitrate. The minerals used are preferably natural or...

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Bibliographic Details
Main Authors BULL, CLAUS, SEWARD, PAUL, BEAVERS, KIRSTIN, KUHLMANN, HERMANN, BUHL, JOSEFRISTIAN, SCHENK, MANFRED
Format Patent
LanguageEnglish
French
German
Published 19.07.2000
Edition7
Subjects
ADHESIVES
CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY
CHEMISTRY
COMPOUNDS THEREOF
DYES
FERTILISERS
FERTILISERS CHARACTERISED BY THEIR FORM
FERTILISERS PRODUCING CARBON DIOXIDE
INORGANIC CHEMISTRY
INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C
MANUFACTURE THEREOF
MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENTSUBCLASSES OF CLASS C05
MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVINGA SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES,SOIL-CONDITIONERS, WETTING AGENTS
NATURAL RESINS
NON-METALLIC ELEMENTS
PAINTS
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
POLISHES
THEIR RELEVANT APPARATUS
TRANSPORTING
TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Summary:Minerals that reversibly fix ions, in particular NO3-, i.e. that can exchange one anion for another anion can be used as fertilizers and soil conditioners, as well as for the purification and treatment of water, particularly for the elimination of nitrate. The minerals used are preferably natural or synthetic mixed value metal-metal-hydroxyl salts, e.g. layered double hydroxides (LDHs) that contain exchangeable fixed anions in the intermediary layers. A method for producing anion-exchanging minerals, particularly suitable LDHs, and their use as fertilizers and soil conditioners and for the purification and treatment of water.
Bibliography:Application Number: EP19980959703