FI58903C - Foerfarande foer rening av vattenhaltig raofosforsyra - Google Patents

Foerfarande foer rening av vattenhaltig raofosforsyra Download PDF

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Publication number
FI58903C
FI58903C FI751940A FI751940A FI58903C FI 58903 C FI58903 C FI 58903C FI 751940 A FI751940 A FI 751940A FI 751940 A FI751940 A FI 751940A FI 58903 C FI58903 C FI 58903C
Authority
FI
Finland
Prior art keywords
water
phosphoric acid
solvent
solution
ethylene glycol
Prior art date
Application number
FI751940A
Other languages
English (en)
Finnish (fi)
Other versions
FI58903B (fi
FI751940A (zh
Inventor
Bernhard Wojtech
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
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 FI751940A publication Critical patent/FI751940A/fi
Priority to FI801327A priority Critical patent/FI801327A/fi
Application granted granted Critical
Publication of FI58903B publication Critical patent/FI58903B/fi
Publication of FI58903C publication Critical patent/FI58903C/fi

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)
FI751940A 1974-07-06 1975-07-03 Foerfarande foer rening av vattenhaltig raofosforsyra FI58903C (fi)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FI801327A FI801327A (fi) 1974-07-06 1980-04-24 Foerfarande foer rening av fosforsyra

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE2432472A DE2432472C3 (de) 1974-07-06 1974-07-06 Verfahren zur Reinigung von wäßriger Phosphorsäure
DE2432472 1974-07-06
DE2435789 1974-07-25
DE19742435789 DE2435789C3 (de) 1974-07-25 1974-07-25 Verfahren zur Reinigung von Phosphorsäure mit Hilfe von 3-Methoxybutanol

Publications (3)

Publication Number Publication Date
FI751940A FI751940A (zh) 1976-01-07
FI58903B FI58903B (fi) 1981-01-30
FI58903C true FI58903C (fi) 1981-05-11

Family

ID=25767368

Family Applications (1)

Application Number Title Priority Date Filing Date
FI751940A FI58903C (fi) 1974-07-06 1975-07-03 Foerfarande foer rening av vattenhaltig raofosforsyra

Country Status (18)

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

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 (zh) *
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
OA05048A (fr) 1980-12-31
US3996336A (en) 1976-12-07
IT1040819B (it) 1979-12-20
JPS5137093A (en) 1976-03-29
DK304175A (da) 1976-01-07
SE7507663L (sv) 1976-01-07
DD120001A5 (zh) 1976-05-20
SE410587B (sv) 1979-10-22
NL7507887A (nl) 1976-01-08
NL183180B (nl) 1988-03-16
BR7504253A (pt) 1976-07-06
IL47629A0 (en) 1975-10-15
EG11808A (en) 1978-09-30
IL47629A (en) 1978-03-10
PH11819A (en) 1978-07-19
FR2277031B1 (zh) 1981-06-19
CA1055419A (en) 1979-05-29
NL183180C (nl) 1988-08-16
JPS537318B2 (zh) 1978-03-16
FR2277031A1 (fr) 1976-01-30
FI58903B (fi) 1981-01-30
CH618402A5 (zh) 1980-07-31
ES438676A1 (es) 1977-03-01
GB1493999A (en) 1977-12-07
FI751940A (zh) 1976-01-07

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MM Patent lapsed

Owner name: HOECHST AG