DK304175A - Fremgangsmade til rensning af phosphorsyre - Google Patents

Fremgangsmade til rensning af phosphorsyre

Info

Publication number
DK304175A
DK304175A DK304175A DK304175A DK304175A DK 304175 A DK304175 A DK 304175A DK 304175 A DK304175 A DK 304175A DK 304175 A DK304175 A DK 304175A DK 304175 A DK304175 A DK 304175A
Authority
DK
Denmark
Prior art keywords
phosphoric acid
purification procedure
acid purification
procedure
phosphoric
Prior art date
Application number
DK304175A
Other languages
English (en)
Inventor
B Wojtech
K-P Ehlers
W 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
Priority claimed from DE2432472A external-priority patent/DE2432472C3/de
Priority claimed from DE19742435789 external-priority patent/DE2435789C3/de
Application filed by Hoechst Ag filed Critical Hoechst Ag
Publication of DK304175A publication Critical patent/DK304175A/da

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
    • 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
    • C01B25/464—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 an ether or a mixture of ethers

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Analytical Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
DK304175A 1974-07-06 1975-07-04 Fremgangsmade til rensning af phosphorsyre DK304175A (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2432472A DE2432472C3 (de) 1974-07-06 1974-07-06 Verfahren zur Reinigung von wäßriger Phosphorsäure
DE19742435789 DE2435789C3 (de) 1974-07-25 1974-07-25 Verfahren zur Reinigung von Phosphorsäure mit Hilfe von 3-Methoxybutanol

Publications (1)

Publication Number Publication Date
DK304175A true DK304175A (da) 1976-01-07

Family

ID=25767368

Family Applications (1)

Application Number Title Priority Date Filing Date
DK304175A DK304175A (da) 1974-07-06 1975-07-04 Fremgangsmade til rensning af phosphorsyre

Country Status (18)

Country Link
US (1) US3996336A (da)
JP (1) JPS5137093A (da)
BR (1) BR7504253A (da)
CA (1) CA1055419A (da)
CH (1) CH618402A5 (da)
DD (1) DD120001A5 (da)
DK (1) DK304175A (da)
EG (1) EG11808A (da)
ES (1) ES438676A1 (da)
FI (1) FI58903C (da)
FR (1) FR2277031A1 (da)
GB (1) GB1493999A (da)
IL (1) IL47629A (da)
IT (1) IT1040819B (da)
NL (1) NL183180C (da)
OA (1) OA05048A (da)
PH (1) PH11819A (da)
SE (1) SE410587B (da)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4196180A (en) * 1973-07-04 1980-04-01 Hoechst Aktiengesellschaft Purification of phosphoric acid by means of organic solvents
FR2447348A1 (fr) * 1979-01-24 1980-08-22 Rhone Poulenc Ind Procede de purification d'un acide phosphorique impur
DE19703884C2 (de) * 1997-02-03 1999-04-29 Bk Giulini Chem Gmbh & Co Ohg Verfahren zur Reinigung von Naßverfahrensphosphorsäure

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1050961A (da) *
US1929441A (en) * 1930-08-26 1933-10-10 American Agricultural Chem Co Process for obtaining orthophosphoric acid and/or conversion product thereof
US1981145A (en) * 1933-10-21 1934-11-20 Minerals Separation North Us Process of producing phosphoric acid
DE1261840B (de) * 1961-12-06 1968-02-29 Ministerul Ind Petrolului Verfahren zur Herstellung hochkonzentrierter Phosphorsaeuren
US3318661A (en) * 1962-12-31 1967-05-09 Tennessee Corp Process for purifying phosphoric acid
GB1112033A (en) * 1964-03-30 1968-05-01 Israel Mining Ind Inst For Res Phosphoric acid recovery
DE2050406C3 (de) * 1970-10-14 1978-04-06 Budenheim Rud A Oetker Chemie Verfahren zur Reinigung von technischer Phosporsäure

Also Published As

Publication number Publication date
JPS5137093A (en) 1976-03-29
CA1055419A (en) 1979-05-29
FI58903B (fi) 1981-01-30
IL47629A0 (en) 1975-10-15
EG11808A (en) 1978-09-30
FR2277031A1 (fr) 1976-01-30
DD120001A5 (da) 1976-05-20
OA05048A (fr) 1980-12-31
FI58903C (fi) 1981-05-11
NL7507887A (nl) 1976-01-08
PH11819A (en) 1978-07-19
BR7504253A (pt) 1976-07-06
JPS537318B2 (da) 1978-03-16
IL47629A (en) 1978-03-10
ES438676A1 (es) 1977-03-01
US3996336A (en) 1976-12-07
SE410587B (sv) 1979-10-22
IT1040819B (it) 1979-12-20
FI751940A (da) 1976-01-07
GB1493999A (en) 1977-12-07
SE7507663L (sv) 1976-01-07
FR2277031B1 (da) 1981-06-19
NL183180C (nl) 1988-08-16
NL183180B (nl) 1988-03-16
CH618402A5 (da) 1980-07-31

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Legal Events

Date Code Title Description
ATS Application withdrawn