ZA803999B - Decontamination of wet-processed phosphoric acid - Google Patents

Decontamination of wet-processed phosphoric acid

Info

Publication number
ZA803999B
ZA803999B ZA00803999A ZA803999A ZA803999B ZA 803999 B ZA803999 B ZA 803999B ZA 00803999 A ZA00803999 A ZA 00803999A ZA 803999 A ZA803999 A ZA 803999A ZA 803999 B ZA803999 B ZA 803999B
Authority
ZA
South Africa
Prior art keywords
aqueous phase
phase
zones
decontamination
wet
Prior art date
Application number
ZA00803999A
Other languages
English (en)
Inventor
K Schroedter
R Gradl
W Scheibitz
K Ehlers
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6074853&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ZA803999(B) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Hoechst Ag filed Critical Hoechst Ag
Publication of ZA803999B publication Critical patent/ZA803999B/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
    • C01B25/46—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
    • C01B25/462—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 the extracting agent being alcohol or a mixture of alcohols
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Analytical Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Extraction Or Liquid Replacement (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Removal Of Specific Substances (AREA)
  • Saccharide Compounds (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Materials For Medical Uses (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)
  • Silicon Compounds (AREA)
ZA00803999A 1979-07-04 1980-07-03 Decontamination of wet-processed phosphoric acid ZA803999B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19792926943 DE2926943A1 (de) 1979-07-04 1979-07-04 Verfahren zur reinigung von nassverfahrensphosphorsaeure

Publications (1)

Publication Number Publication Date
ZA803999B true ZA803999B (en) 1981-07-29

Family

ID=6074853

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA00803999A ZA803999B (en) 1979-07-04 1980-07-03 Decontamination of wet-processed phosphoric acid

Country Status (18)

Country Link
US (1) US4346066A (xx)
EP (1) EP0022477B1 (xx)
JP (1) JPS5924723B2 (xx)
AT (1) ATE30140T1 (xx)
BR (1) BR8004138A (xx)
CA (1) CA1141941A (xx)
DD (1) DD151920A5 (xx)
DE (1) DE2926943A1 (xx)
DK (1) DK156951C (xx)
ES (1) ES491919A0 (xx)
FI (1) FI70559C (xx)
IL (1) IL60427A (xx)
MA (1) MA18887A1 (xx)
MX (1) MX152984A (xx)
PH (1) PH16195A (xx)
SU (1) SU1367851A3 (xx)
TR (1) TR21265A (xx)
ZA (1) ZA803999B (xx)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3246415A1 (de) * 1982-12-15 1984-06-20 Hoechst Ag, 6230 Frankfurt Verfahren zur reinigung von nassverfahrenphosphorsaeure
AU2009347055B2 (en) * 2009-05-27 2014-12-11 Easymining Sweden Ab Production of ammonium phosphates

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1292338A (fr) * 1961-03-22 1962-05-04 Ets Kuhlmann Procédé d'obtention d'acide phosphorique pur par voie humide
GB1042621A (en) * 1962-04-04 1966-09-14 Ishihara Sangyo Kaisha Liquid-liquid contact process and apparatus
BE757550A (fr) * 1969-10-16 1971-03-16 Giulini Gmbh Geb Procede de preparation de phosphates purs a partir d'acides phosphoriques impurs
SE366972B (xx) * 1970-06-12 1974-05-13 Azote & Prod Chim
DE2321751C3 (de) * 1973-04-30 1981-11-19 Hoechst Ag, 6000 Frankfurt Verfahren zur Reinigung von Naßphosphorsäure
US4196180A (en) * 1973-07-04 1980-04-01 Hoechst Aktiengesellschaft Purification of phosphoric acid by means of organic solvents
DE2657190C2 (de) * 1976-12-17 1982-11-04 Hoechst Ag, 6000 Frankfurt Verfahren zur Reinigung von Naßverfahrensphosphorsäure
DE2657189B2 (de) * 1976-12-17 1980-02-07 Hoechst Ag, 6000 Frankfurt Verfahren zur Reinigung von NaBverfahrensphosphorsäure

Also Published As

Publication number Publication date
MX152984A (es) 1986-07-14
IL60427A0 (en) 1980-09-16
FI70559C (fi) 1986-09-24
ES8101021A1 (es) 1980-12-16
TR21265A (tr) 1984-03-15
DE2926943A1 (de) 1981-01-29
FI70559B (fi) 1986-06-06
FI802126A (fi) 1981-01-05
CA1141941A (en) 1983-03-01
MA18887A1 (fr) 1981-04-01
EP0022477A2 (de) 1981-01-21
ATE30140T1 (de) 1987-10-15
EP0022477B1 (de) 1987-10-07
DE2926943C2 (xx) 1988-01-28
DK156951B (da) 1989-10-23
JPS5924723B2 (ja) 1984-06-12
US4346066A (en) 1982-08-24
DD151920A5 (de) 1981-11-11
ES491919A0 (es) 1980-12-16
DK287880A (da) 1981-01-05
DK156951C (da) 1990-03-26
PH16195A (en) 1983-07-28
IL60427A (en) 1983-11-30
BR8004138A (pt) 1981-01-21
JPS569203A (en) 1981-01-30
SU1367851A3 (ru) 1988-01-15
EP0022477A3 (en) 1981-08-05

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