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FI800729A7 - Foerfarande foer omvandling av fosforsyra till fasta avfallsprodukter - Google Patents

Foerfarande foer omvandling av fosforsyra till fasta avfallsprodukter

Info

Publication number
FI800729A7
FI800729A7 FI800729A FI800729A FI800729A7 FI 800729 A7 FI800729 A7 FI 800729A7 FI 800729 A FI800729 A FI 800729A FI 800729 A FI800729 A FI 800729A FI 800729 A7 FI800729 A7 FI 800729A7
Authority
FI
Finland
Prior art keywords
fosforsyra
avfallsprodukter
fasta
till
foerfarande foer
Prior art date
Application number
FI800729A
Other languages
English (en)
Other versions
FI67069C (fi
FI67069B (fi
Inventor
Klaus Schroedter
Reinhard Gradl
Klaus-Peter Ehlers
Wolfgang Scheibitz
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 FI800729A7 publication Critical patent/FI800729A7/fi
Application granted granted Critical
Publication of FI67069B publication Critical patent/FI67069B/fi
Publication of FI67069C publication Critical patent/FI67069C/fi

Links

Classifications

    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
    • A62D3/00—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances
    • A62D3/30—Processes for making harmful chemical substances harmless or less harmful, by effecting a chemical change in the substances by reacting with chemical agents
    • A62D3/36—Detoxification by using acid or alkaline reagents
    • 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
    • C01B25/46—Preparation involving solvent-solvent extraction
    • C01B25/461—Preparation involving solvent-solvent extraction the phosphoric acid present in the medium obtained after reaction being first extracted from the liquid phase formed or separated then re-extracted as free acid by using water or as a phosphate by using a basic compound
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F11/00—Treatment of sludge; Devices therefor
    • C02F11/008—Sludge treatment by fixation or solidification
    • A—HUMAN NECESSITIES
    • A62—LIFE-SAVING; FIRE-FIGHTING
    • A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
    • A62D2101/00—Harmful chemical substances made harmless, or less harmful, by effecting chemical change
    • A62D2101/40—Inorganic substances
    • A62D2101/45—Inorganic substances containing nitrogen or phosphorus

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Analytical Chemistry (AREA)
  • Toxicology (AREA)
  • General Chemical & Material Sciences (AREA)
  • Business, Economics & Management (AREA)
  • Emergency Management (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • General Health & Medical Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Processing Of Solid Wastes (AREA)
  • Removal Of Specific Substances (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Detergent Compositions (AREA)
  • Storage Device Security (AREA)
  • Seasonings (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Extraction Or Liquid Replacement (AREA)
  • Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
  • Compounds Of Unknown Constitution (AREA)
  • Paper (AREA)
  • Saccharide Compounds (AREA)
FI800729A 1979-03-12 1980-03-10 Foerfarande foer omvandling av extraktionsrester erhaollna vidrening av fosforsyra till fasta avfallsprodukter FI67069C (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2909572 1979-03-12
DE19792909572 DE2909572A1 (de) 1979-03-12 1979-03-12 Verfahren zur ueberfuehrung von extraktionsrueckstaenden aus der phosphorsaeurereinigung in feste deponieprodukte

Publications (3)

Publication Number Publication Date
FI800729A7 true FI800729A7 (fi) 1980-09-13
FI67069B FI67069B (fi) 1984-09-28
FI67069C FI67069C (fi) 1985-01-10

Family

ID=6065102

Family Applications (1)

Application Number Title Priority Date Filing Date
FI800729A FI67069C (fi) 1979-03-12 1980-03-10 Foerfarande foer omvandling av extraktionsrester erhaollna vidrening av fosforsyra till fasta avfallsprodukter

Country Status (18)

Country Link
US (1) US4279876A (fi)
EP (1) EP0017741B1 (fi)
JP (1) JPS6044998B2 (fi)
AT (1) ATE1139T1 (fi)
BR (1) BR8001427A (fi)
CA (1) CA1136830A (fi)
DD (1) DD149795A5 (fi)
DE (2) DE2909572A1 (fi)
DK (1) DK151217C (fi)
ES (1) ES487988A1 (fi)
FI (1) FI67069C (fi)
IE (1) IE49648B1 (fi)
IL (1) IL59546A (fi)
MA (1) MA18768A1 (fi)
MX (1) MX153241A (fi)
PH (1) PH15387A (fi)
SU (1) SU959619A3 (fi)
ZA (1) ZA801407B (fi)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3135801A1 (de) * 1981-09-10 1983-03-24 Hoechst Ag, 6000 Frankfurt Verfahren zur nachbehandlung von extraktionsrueckstaenden der phosphorsaeurereinigung
DE3502215A1 (de) * 1985-01-24 1986-07-24 Hoechst Ag Verfahren zur ueberfuehrung schwermetallhaltiger rueckstaende in feste deponiefaehige produkte
DE3522822A1 (de) * 1985-06-26 1987-01-02 Hoechst Ag Verfahren zur aufarbeitung von schwermetallhaltigen rueckstaenden aus der reinigung von rohphosphorsaeuren
JPS6222296U (fi) * 1985-07-25 1987-02-10
US4781905A (en) * 1986-05-30 1988-11-01 Yu Ming Jiang Process for producing phosphoric acid and/or phosphates from wet-process phosphoric acid and an extractant therein
DE3710804A1 (de) * 1987-03-31 1988-10-20 Basf Ag Verfahren zur reinigung und entsorgung von russ- und aschehaltigen abwaessern
US4783328A (en) * 1987-12-14 1988-11-08 Fmc Corporation Utilization of phosphourus containing by-products
EP0375653A3 (de) * 1988-12-23 1991-03-20 Perlmooser Zementwerke Aktiengesellschaft Verfahren zur Behandlung von Abfallstoffen
DE3913853A1 (de) * 1989-04-27 1990-10-31 Hoechst Ag Verfahren zur aufarbeitung von phosphorsaeure
WO1991001280A1 (de) * 1989-07-14 1991-02-07 Techform Engineering Ag Verfahren zur inertisierung und/oder immobilisierung von umweltrelevanten schadstoffen
JPH0346696U (fi) * 1989-09-01 1991-04-30
GB9124353D0 (en) * 1991-11-15 1992-01-08 Albright & Wilson Immobilisation of metal contaminants from a liquid to a solid metal
DE102007011972B4 (de) * 2007-03-09 2010-04-22 Oase Gmbh Oberflächenabsauger für Teiche oder dergleichen
CN117696610B (zh) * 2024-01-23 2024-11-22 瓮福紫金化工股份有限公司 一种萃余酸压滤渣破碎筛分的方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3375066A (en) * 1963-08-24 1968-03-26 Yawata Chem Ind Co Ltd Process for the continuous production of gypsum and iron oxide from waste sulfuric acid pickle liquor and a calcium compound
JPS5146679B2 (fi) * 1973-03-23 1976-12-10
GB1485067A (en) * 1975-07-25 1977-09-08 Tioxide Group Ltd Effluent treatment process
JPS52126694A (en) * 1976-04-16 1977-10-24 Toyo Soda Mfg Co Ltd Removal of scale coming out from residual solution after extraction
DE2657180C3 (de) * 1976-12-17 1980-06-04 Continental Gummi-Werke Ag, 3000 Hannover Verfahren zum Aus- und Einbauen von elastischen Lagerkörpern zum Auflagern von Baukonstruktionen und Bauwerksteilen und Lagerkörper zum Ausüben des Verfahrens
DE2657189B2 (de) * 1976-12-17 1980-02-07 Hoechst Ag, 6000 Frankfurt Verfahren zur Reinigung von NaBverfahrensphosphorsäure
DE2657190C2 (de) 1976-12-17 1982-11-04 Hoechst Ag, 6000 Frankfurt Verfahren zur Reinigung von Naßverfahrensphosphorsäure

Also Published As

Publication number Publication date
MX153241A (es) 1986-09-02
EP0017741B1 (de) 1982-06-02
DK151217C (da) 1988-06-27
FI67069C (fi) 1985-01-10
IL59546A (en) 1983-09-30
JPS55124591A (en) 1980-09-25
CA1136830A (en) 1982-12-07
ES487988A1 (es) 1980-07-01
IE49648B1 (en) 1985-11-13
DE3060486D1 (en) 1982-07-22
ATE1139T1 (de) 1982-06-15
ZA801407B (en) 1981-04-29
FI67069B (fi) 1984-09-28
US4279876A (en) 1981-07-21
JPS6044998B2 (ja) 1985-10-07
BR8001427A (pt) 1980-11-11
DE2909572A1 (de) 1980-09-25
EP0017741A1 (de) 1980-10-29
DD149795A5 (de) 1981-07-29
SU959619A3 (ru) 1982-09-15
MA18768A1 (fr) 1980-10-01
PH15387A (en) 1982-12-23
DK151217B (da) 1987-11-16
DK104380A (da) 1980-09-13
IE800497L (en) 1980-09-12

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Legal Events

Date Code Title Description
MM Patent lapsed
MM Patent lapsed

Owner name: HOECHST AKTIENGESELLSCHAFT