NL173627C - METHOD FOR PURIFYING TECHNICAL PHOSPHORIC ACID. - Google Patents

METHOD FOR PURIFYING TECHNICAL PHOSPHORIC ACID.

Info

Publication number
NL173627C
NL173627C NLAANVRAGE7304362,A NL7304362A NL173627C NL 173627 C NL173627 C NL 173627C NL 7304362 A NL7304362 A NL 7304362A NL 173627 C NL173627 C NL 173627C
Authority
NL
Netherlands
Prior art keywords
phosphoric acid
purifying technical
technical phosphoric
purifying
acid
Prior art date
Application number
NLAANVRAGE7304362,A
Other languages
Dutch (nl)
Other versions
NL173627B (en
NL7304362A (en
Original Assignee
Budenheim Rud A Oetker Chemie
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 Budenheim Rud A Oetker Chemie filed Critical Budenheim Rud A Oetker Chemie
Publication of NL7304362A publication Critical patent/NL7304362A/xx
Publication of NL173627B publication Critical patent/NL173627B/en
Application granted granted Critical
Publication of NL173627C publication Critical patent/NL173627C/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
    • C23G1/00—Cleaning or pickling metallic material with solutions or molten salts
    • C23G1/36—Regeneration of waste pickling liquors
    • 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
    • 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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Analytical Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
NLAANVRAGE7304362,A 1972-06-19 1973-03-29 METHOD FOR PURIFYING TECHNICAL PHOSPHORIC ACID. NL173627C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2229602 1972-06-19

Publications (3)

Publication Number Publication Date
NL7304362A NL7304362A (en) 1973-12-21
NL173627B NL173627B (en) 1983-09-16
NL173627C true NL173627C (en) 1984-02-16

Family

ID=5848004

Family Applications (1)

Application Number Title Priority Date Filing Date
NLAANVRAGE7304362,A NL173627C (en) 1972-06-19 1973-03-29 METHOD FOR PURIFYING TECHNICAL PHOSPHORIC ACID.

Country Status (9)

Country Link
JP (1) JPS5310957B2 (en)
BE (1) BE796996A (en)
DE (1) DE2229602B1 (en)
FR (1) FR2189316B1 (en)
GB (1) GB1404546A (en)
IL (1) IL42487A (en)
IT (1) IT982777B (en)
NL (1) NL173627C (en)
SE (1) SE386148B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2433307C3 (en) * 1974-07-11 1984-03-22 Chemische Fabrik Budenheim Rudolf A. Oetker, 6501 Budenheim Process for the separation of a phosphoric acid-organic solvent-water mixture
DE2435789C3 (en) * 1974-07-25 1984-06-20 Hoechst Ag, 6230 Frankfurt Process for the purification of phosphoric acid with the help of 3-methoxybutanol
DE2538720C2 (en) * 1975-08-30 1982-11-18 Giulini Chemie Gmbh, 6700 Ludwigshafen Process for purifying wet process phosphoric acid
FR2447348A1 (en) * 1979-01-24 1980-08-22 Rhone Poulenc Ind PROCESS FOR THE PURIFICATION OF AN IMPURE PHOSPHORIC ACID
JPS55124490U (en) * 1979-02-27 1980-09-03
DE3328499A1 (en) * 1983-08-06 1985-02-14 Hoechst Ag, 6230 Frankfurt METHOD FOR REDUCING THE FLUORINE CONTENT OF A WET PROCESS PHOSPHORIC ACID

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1531487A (en) * 1967-05-11 1968-07-05 Pechiney Saint Gobain Improved continuous process for the purification of phosphoric acid by solvents
DE2029564C3 (en) * 1970-06-16 1978-06-22 Giulini Chemie Gmbh, 6700 Ludwigshafen Process for the production of pure alkali phosphates from rock phosphoric acid

Also Published As

Publication number Publication date
SE386148B (en) 1976-08-02
NL173627B (en) 1983-09-16
BE796996A (en) 1973-07-16
FR2189316A1 (en) 1974-01-25
IL42487A0 (en) 1973-08-29
JPS5310957B2 (en) 1978-04-18
DE2229602B1 (en) 1973-09-27
GB1404546A (en) 1975-09-03
NL7304362A (en) 1973-12-21
IT982777B (en) 1974-10-21
FR2189316B1 (en) 1978-07-21
JPS4963692A (en) 1974-06-20
IL42487A (en) 1977-02-28

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Legal Events

Date Code Title Description
BA A request for search or an international-type search has been filed
BB A search report has been drawn up
BC A request for examination has been filed
V1 Lapsed because of non-payment of the annual fee