IL78989A0 - Process for working up heavy metal-containing residues originating from the decontamination of crude phosphoric acid - Google Patents

Process for working up heavy metal-containing residues originating from the decontamination of crude phosphoric acid

Info

Publication number
IL78989A0
IL78989A0 IL78989A IL7898986A IL78989A0 IL 78989 A0 IL78989 A0 IL 78989A0 IL 78989 A IL78989 A IL 78989A IL 7898986 A IL7898986 A IL 7898986A IL 78989 A0 IL78989 A0 IL 78989A0
Authority
IL
Israel
Prior art keywords
heavy metal
phosphoric acid
decontamination
working
crude phosphoric
Prior art date
Application number
IL78989A
Other languages
English (en)
Original Assignee
Hoechst Ag
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 Hoechst Ag filed Critical Hoechst Ag
Publication of IL78989A0 publication Critical patent/IL78989A0/xx

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B25/00—Phosphorus; Compounds thereof
    • C01B25/16—Oxyacids of phosphorus; Salts thereof
    • C01B25/18—Phosphoric acid
    • C01B25/234—Purification; Stabilisation; Concentration
    • C01B25/237—Selective elimination of impurities
    • C01B25/238—Cationic impurities, e.g. arsenic compounds
    • 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
    • C22B3/22—Treatment or purification of solutions, e.g. obtained by leaching by physical processes, e.g. by filtration, by magnetic means, or by thermal decomposition
    • C22B3/24—Treatment or purification of solutions, e.g. obtained by leaching by physical processes, e.g. by filtration, by magnetic means, or by thermal decomposition by adsorption on solid substances, e.g. by extraction with solid resins
    • 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
    • C22B3/385—Thiophosphoric acids, or esters thereof
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Processing Of Solid Wastes (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Water Treatment By Sorption (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Extraction Or Liquid Replacement (AREA)
IL78989A 1985-06-26 1986-06-02 Process for working up heavy metal-containing residues originating from the decontamination of crude phosphoric acid IL78989A0 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19853522822 DE3522822A1 (de) 1985-06-26 1985-06-26 Verfahren zur aufarbeitung von schwermetallhaltigen rueckstaenden aus der reinigung von rohphosphorsaeuren

Publications (1)

Publication Number Publication Date
IL78989A0 true IL78989A0 (en) 1986-09-30

Family

ID=6274223

Family Applications (1)

Application Number Title Priority Date Filing Date
IL78989A IL78989A0 (en) 1985-06-26 1986-06-02 Process for working up heavy metal-containing residues originating from the decontamination of crude phosphoric acid

Country Status (8)

Country Link
US (1) US4762693A (xx)
EP (1) EP0206022B1 (xx)
JP (1) JPS623009A (xx)
AT (1) ATE74571T1 (xx)
DE (2) DE3522822A1 (xx)
FI (1) FI80251C (xx)
IL (1) IL78989A0 (xx)
NO (1) NO170679C (xx)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4938085A (en) * 1987-06-30 1990-07-03 Honda Giken Kogyo Kabushiki Kaisha Power transmission system in a tractor
DE3821242A1 (de) * 1988-06-23 1989-12-28 Antonio M Dipl Ing Celi Verfahren und vorrichtung zur aufarbeitung metallbelasteter abfallschlaemme
US5591270A (en) * 1995-07-31 1997-01-07 Corpex Technologies, Inc. Lead oxide removal method
US5678232A (en) * 1995-07-31 1997-10-14 Corpex Technologies, Inc. Lead decontamination method
US5814204A (en) * 1996-10-11 1998-09-29 Corpex Technologies, Inc. Electrolytic decontamination processes
EP3925710A1 (en) 2020-06-16 2021-12-22 Yara International ASA Method for treating solid hazardous heavy metal-containing compositions

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2909572A1 (de) * 1979-03-12 1980-09-25 Hoechst Ag Verfahren zur ueberfuehrung von extraktionsrueckstaenden aus der phosphorsaeurereinigung in feste deponieprodukte
DE3127900A1 (de) * 1981-07-15 1983-02-03 Hoechst Ag, 6000 Frankfurt Verfahren zur extraktion von schwermetallionen aus waessrigen loesungen
DE3135801A1 (de) * 1981-09-10 1983-03-24 Hoechst Ag, 6000 Frankfurt Verfahren zur nachbehandlung von extraktionsrueckstaenden der phosphorsaeurereinigung
DE3202658A1 (de) * 1982-01-28 1983-08-04 Hoechst Ag, 6230 Frankfurt Verfahren zur entfernung von schwermetallionen aus nassverfahrensphosphorsaeure
DE3202659A1 (de) * 1982-01-28 1983-08-04 Hoechst Ag, 6230 Frankfurt Verfahren zur reinigung von nassverfahrensphosphorsaeure
DE3212675A1 (de) * 1982-04-05 1983-10-06 Hoechst Ag Verfahren zur abtrennung von schwermetallverbindungen aus zwischenprodukten der fabrikation von phosphorduengemitteln
IL69100A (en) * 1982-07-21 1986-11-30 Hoechst Ag Process for removing heavy metal ions and arsenic from wet-processed phosphoric acid
DE3246415A1 (de) * 1982-12-15 1984-06-20 Hoechst Ag, 6230 Frankfurt Verfahren zur reinigung von nassverfahrenphosphorsaeure
DE3502215A1 (de) * 1985-01-24 1986-07-24 Hoechst Ag Verfahren zur ueberfuehrung schwermetallhaltiger rueckstaende in feste deponiefaehige produkte

Also Published As

Publication number Publication date
EP0206022A3 (en) 1988-09-07
FI862685A (fi) 1986-12-27
ATE74571T1 (de) 1992-04-15
DE3684727D1 (de) 1992-05-14
FI80251C (fi) 1990-05-10
DE3522822A1 (de) 1987-01-02
NO862574D0 (no) 1986-06-25
FI80251B (fi) 1990-01-31
EP0206022A2 (de) 1986-12-30
NO170679B (no) 1992-08-10
NO862574L (no) 1986-12-29
JPS623009A (ja) 1987-01-09
EP0206022B1 (de) 1992-04-08
US4762693A (en) 1988-08-09
NO170679C (no) 1992-11-18
FI862685A0 (fi) 1986-06-24

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Legal Events

Date Code Title Description
RH Patent void