IT1092168B - Procedimento ed impianto per depurare acido fosforico di processo ad umido - Google Patents

Procedimento ed impianto per depurare acido fosforico di processo ad umido

Info

Publication number
IT1092168B
IT1092168B IT52201/77A IT5220177A IT1092168B IT 1092168 B IT1092168 B IT 1092168B IT 52201/77 A IT52201/77 A IT 52201/77A IT 5220177 A IT5220177 A IT 5220177A IT 1092168 B IT1092168 B IT 1092168B
Authority
IT
Italy
Prior art keywords
plant
phosphoric acid
purifying wet
wet process
purifying
Prior art date
Application number
IT52201/77A
Other languages
English (en)
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
Application granted granted Critical
Publication of IT1092168B publication Critical patent/IT1092168B/it

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
    • C01B25/18—Phosphoric acid
    • C01B25/234—Purification; Stabilisation; Concentration
    • 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)
  • Inorganic Chemistry (AREA)
  • Analytical Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Extraction Or Liquid Replacement (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
IT52201/77A 1976-12-17 1977-12-14 Procedimento ed impianto per depurare acido fosforico di processo ad umido IT1092168B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2657189A DE2657189B2 (de) 1976-12-17 1976-12-17 Verfahren zur Reinigung von NaBverfahrensphosphorsäure

Publications (1)

Publication Number Publication Date
IT1092168B true IT1092168B (it) 1985-07-06

Family

ID=5995769

Family Applications (1)

Application Number Title Priority Date Filing Date
IT52201/77A IT1092168B (it) 1976-12-17 1977-12-14 Procedimento ed impianto per depurare acido fosforico di processo ad umido

Country Status (22)

Country Link
US (1) US4222994A (it)
JP (1) JPS5376996A (it)
AT (1) AT378760B (it)
BE (1) BE861919A (it)
BR (1) BR7708378A (it)
CA (1) CA1084239A (it)
CH (1) CH631681A5 (it)
DD (1) DD134635A5 (it)
DE (1) DE2657189B2 (it)
DK (1) DK147680C (it)
EG (1) EG12812A (it)
ES (1) ES463636A1 (it)
FI (1) FI65609C (it)
FR (1) FR2374262A1 (it)
GB (1) GB1553319A (it)
IL (1) IL53619A0 (it)
IT (1) IT1092168B (it)
MX (1) MX146677A (it)
NL (1) NL184944C (it)
PH (1) PH13877A (it)
SE (1) SE429543B (it)
ZA (1) ZA777231B (it)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2909572A1 (de) * 1979-03-12 1980-09-25 Hoechst Ag Verfahren zur ueberfuehrung von extraktionsrueckstaenden aus der phosphorsaeurereinigung in feste deponieprodukte
DE2926943A1 (de) * 1979-07-04 1981-01-29 Hoechst Ag Verfahren zur reinigung von nassverfahrensphosphorsaeure
DE2945874A1 (de) 1979-11-14 1981-05-27 Hoechst Ag, 6000 Frankfurt Verfahren zur reinigung von nassverfahrenphosphorsaeure
US4311681A (en) * 1980-05-19 1982-01-19 Fmc Corporation Method of regenerating phosphoric acid extraction solvent
JPS5933527B2 (ja) * 1980-11-29 1984-08-16 東ソー株式会社 リン酸の溶媒抽出法
DE3135801A1 (de) * 1981-09-10 1983-03-24 Hoechst Ag, 6000 Frankfurt Verfahren zur nachbehandlung von extraktionsrueckstaenden der phosphorsaeurereinigung
JPS58217413A (ja) * 1982-05-12 1983-12-17 Toyo Soda Mfg Co Ltd リン酸の精製法
DE19703884C2 (de) * 1997-02-03 1999-04-29 Bk Giulini Chem Gmbh & Co Ohg Verfahren zur Reinigung von Naßverfahrensphosphorsäure
DE102016212242B4 (de) 2016-07-05 2019-02-07 Technische Universität Bergakademie Freiberg Verfahren zur Herstellung von Phosphorsäure aus phosphorhaltigen Primär- und Sekundärrohstoffen
CN117547861B (zh) * 2023-12-27 2024-04-02 昆明红海磷肥有限责任公司 一种萃余磷酸和含渣磷酸提纯分离装置及其方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2880063A (en) * 1956-06-25 1959-03-31 Makhtsavei Israel Process for the preparation of phosphoric acid
FI43731B (it) * 1965-02-04 1971-03-01 Typpi Oy
US3956465A (en) * 1970-06-12 1976-05-11 Azote Et Produits Chimiques S.A. Solvent purification of wet process phosphoric acid
FR2128968A6 (en) * 1971-03-10 1972-10-27 Azote & Prod Chim Purification of wet-process phosphoric acid - by extraction - with part water-misc organic solvent
SE366972B (it) * 1970-06-12 1974-05-13 Azote & Prod Chim
FR2093372A5 (en) * 1970-06-12 1972-01-28 Azote & Prod Chim Purification of wet-process phosphoric acid - by extraction - with part water-misc organic solvent
US3684439A (en) * 1970-09-22 1972-08-15 Monsanto Co Handling of raffinates from wet phosphoric acid purification
DE2321751C3 (de) * 1973-04-30 1981-11-19 Hoechst Ag, 6000 Frankfurt Verfahren zur Reinigung von Naßphosphorsäure
FR2259787B1 (it) * 1974-02-01 1977-09-16 Rhone Poulenc Ind
DE2605106C2 (de) * 1976-02-10 1984-06-14 Hoechst Ag, 6230 Frankfurt Verfahren und Vorrichtung zur Herstellung von alkoholischen Phosphorsäurelösungen aus sauren Phosphaten

Also Published As

Publication number Publication date
CA1084239A (en) 1980-08-26
ES463636A1 (es) 1978-07-16
NL7713607A (nl) 1978-06-20
EG12812A (en) 1981-03-31
MX146677A (es) 1982-07-27
BR7708378A (pt) 1978-08-08
FI773802A (fi) 1978-06-18
IL53619A0 (en) 1978-03-10
FR2374262B1 (it) 1982-10-08
JPS5376996A (en) 1978-07-07
DK147680C (da) 1985-05-13
BE861919A (fr) 1978-06-16
DK147680B (da) 1984-11-12
ATA898177A (de) 1985-02-15
US4222994A (en) 1980-09-16
DK562777A (da) 1978-06-18
FI65609C (fi) 1984-06-11
PH13877A (en) 1980-10-24
CH631681A5 (de) 1982-08-31
DE2657189A1 (de) 1978-06-22
SE7714258L (sv) 1978-06-18
ZA777231B (en) 1978-11-29
AT378760B (de) 1985-09-25
NL184944C (nl) 1989-12-18
FI65609B (fi) 1984-02-29
SE429543B (sv) 1983-09-12
FR2374262A1 (fr) 1978-07-13
DD134635A5 (de) 1979-03-14
GB1553319A (en) 1979-09-26
NL184944B (nl) 1989-07-17
DE2657189B2 (de) 1980-02-07

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