IN169199B - - Google Patents

Info

Publication number
IN169199B
IN169199B IN40/MAS/87A IN40MA1987A IN169199B IN 169199 B IN169199 B IN 169199B IN 40MA1987 A IN40MA1987 A IN 40MA1987A IN 169199 B IN169199 B IN 169199B
Authority
IN
India
Application number
IN40/MAS/87A
Other languages
English (en)
Inventor
Schimmel Gunther
Kolkmann Friedrich
Gradl Reinhard
Ressel Herbert
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 IN169199B publication Critical patent/IN169199B/en

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
    • C01B25/22—Preparation by reacting phosphate-containing material with an acid, e.g. wet process
    • C01B25/2208—Preparation by reacting phosphate-containing material with an acid, e.g. wet process with an acid or a mixture of acids other than sulfuric acid
    • 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
    • C01B25/22—Preparation by reacting phosphate-containing material with an acid, e.g. wet process
    • C01B25/222—Preparation by reacting phosphate-containing material with an acid, e.g. wet process with sulfuric acid, a mixture of acids mainly consisting of sulfuric acid or a mixture of compounds forming it in situ, e.g. a mixture of sulfur dioxide, water and oxygen
    • C01B25/223—Preparation by reacting phosphate-containing material with an acid, e.g. wet process with sulfuric acid, a mixture of acids mainly consisting of sulfuric acid or a mixture of compounds forming it in situ, e.g. a mixture of sulfur dioxide, water and oxygen only one form of calcium sulfate being formed

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Treating Waste Gases (AREA)
  • Saccharide Compounds (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
  • Fuel Cell (AREA)
  • Fertilizers (AREA)
IN40/MAS/87A 1986-02-17 1987-01-21 IN169199B (is")

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19863604920 DE3604920A1 (de) 1986-02-17 1986-02-17 Verfahren zur herstellung von rohphosphorsaeure

Publications (1)

Publication Number Publication Date
IN169199B true IN169199B (is") 1991-09-14

Family

ID=6294237

Family Applications (1)

Application Number Title Priority Date Filing Date
IN40/MAS/87A IN169199B (is") 1986-02-17 1987-01-21

Country Status (10)

Country Link
US (1) US4780294A (is")
EP (1) EP0233523B1 (is")
JP (1) JPS62191408A (is")
DE (2) DE3604920A1 (is")
ES (1) ES2026853T3 (is")
IL (1) IL81585A (is")
IN (1) IN169199B (is")
MA (1) MA20867A1 (is")
NO (1) NO170923B (is")
TN (1) TNSN87020A1 (is")

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1172331B1 (en) * 1998-12-28 2006-08-16 Toyo Boseki Kabushiki Kaisha Method for purification of phosphoric acid
EP4430000A1 (en) * 2021-11-12 2024-09-18 Takhim for Technology and Business Services Process for the production of a purified phosphoric acid solution and/or dicalcium phosphate salts

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2003051A (en) * 1933-07-05 1935-05-28 Victor Chemical Works Purification of strong phosphoric acid
US3511604A (en) * 1967-04-07 1970-05-12 Continental Oil Co Corrosion inhibition during phosphate rock acidulation
SE418845B (sv) * 1979-05-10 1981-06-29 Boliden Ab Forfarande for rening av vatprocessfosforsyra
JPS59184291A (ja) * 1983-04-04 1984-10-19 Mitsubishi Heavy Ind Ltd 高温還元性ガスの精製方法

Also Published As

Publication number Publication date
DE3604920A1 (de) 1987-08-20
JPS62191408A (ja) 1987-08-21
TNSN87020A1 (fr) 1990-01-01
NO870600D0 (no) 1987-02-16
IL81585A (en) 1990-06-10
EP0233523B1 (de) 1991-10-02
NO170923B (no) 1992-09-21
EP0233523A2 (de) 1987-08-26
IL81585A0 (en) 1987-09-16
DE3773404D1 (de) 1991-11-07
MA20867A1 (fr) 1987-10-01
NO870600L (no) 1987-08-18
ES2026853T3 (es) 1992-05-16
EP0233523A3 (en) 1989-02-08
US4780294A (en) 1988-10-25

Similar Documents

Publication Publication Date Title
DE3790062T (is")
AU7131891A (is")
FR2600799B1 (is")
IN170755B (is")
IN165686B (is")
GR3003863T3 (is")
IN167875B (is")
AU7354491A (is")
FR2602088B1 (is")
GR3007480T3 (is")
DE3690729T1 (is")
IN169199B (is")
AU7131791A (is")
AU5227086A (is")
AU5597686A (is")
AU5130385A (is")
AU5329886A (is")
IN165289B (is")
AU5344086A (is")
AU5348186A (is")
AU5745586A (is")
AU5703286A (is")
AU5655786A (is")
DK373986D0 (is")
IT8603375A1 (it) Apparecchiatura per la formazione di catene per oreficeria e bigiotteria con maglie differenziate