ES441121A1 - Procedimiento e instalacion para la purificacion de acido fosforico humedo bruto. - Google Patents

Procedimiento e instalacion para la purificacion de acido fosforico humedo bruto.

Info

Publication number
ES441121A1
ES441121A1 ES441121A ES441121A ES441121A1 ES 441121 A1 ES441121 A1 ES 441121A1 ES 441121 A ES441121 A ES 441121A ES 441121 A ES441121 A ES 441121A ES 441121 A1 ES441121 A1 ES 441121A1
Authority
ES
Spain
Prior art keywords
calcium sulfate
phosphoric acid
separated
suspension
acid
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
ES441121A
Other languages
English (en)
Spanish (es)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hoechst AG
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
Publication of ES441121A1 publication Critical patent/ES441121A1/es
Expired legal-status Critical Current

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
    • C01B25/234—Purification; Stabilisation; Concentration
    • C01B25/237—Selective elimination of impurities

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Removal Of Specific Substances (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Processing Of Solid Wastes (AREA)
ES441121A 1974-10-04 1975-09-19 Procedimiento e instalacion para la purificacion de acido fosforico humedo bruto. Expired ES441121A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2447390A DE2447390C3 (de) 1974-10-04 1974-10-04 Verfahren zur Reinigung von Naßphosphorsäure

Publications (1)

Publication Number Publication Date
ES441121A1 true ES441121A1 (es) 1977-03-16

Family

ID=5927552

Family Applications (1)

Application Number Title Priority Date Filing Date
ES441121A Expired ES441121A1 (es) 1974-10-04 1975-09-19 Procedimiento e instalacion para la purificacion de acido fosforico humedo bruto.

Country Status (21)

Country Link
JP (1) JPS5163394A (fr)
AT (1) AT358525B (fr)
BE (1) BE834003A (fr)
BR (1) BR7506423A (fr)
CA (1) CA1045339A (fr)
CH (1) CH599900A5 (fr)
DD (1) DD120417A5 (fr)
DE (1) DE2447390C3 (fr)
DK (1) DK137229C (fr)
EG (1) EG11849A (fr)
ES (1) ES441121A1 (fr)
FI (1) FI752749A (fr)
FR (1) FR2286790A1 (fr)
GB (1) GB1524552A (fr)
IL (1) IL48236A (fr)
IT (1) IT1047666B (fr)
NL (1) NL170839C (fr)
SE (1) SE401668B (fr)
SU (1) SU671716A3 (fr)
TR (1) TR19680A (fr)
ZA (1) ZA755820B (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2447347A1 (fr) * 1979-01-24 1980-08-22 Rhone Poulenc Ind Procede de traitement d'un acide phosphorique impur
SE418845B (sv) 1979-05-10 1981-06-29 Boliden Ab Forfarande for rening av vatprocessfosforsyra
DE3134847A1 (de) * 1981-09-03 1983-03-17 Hoechst Ag, 6000 Frankfurt "verfahren zur gewinnung cadmium-freier rohphosphorsaeure"
DE3202659A1 (de) * 1982-01-28 1983-08-04 Hoechst Ag, 6230 Frankfurt Verfahren zur reinigung von nassverfahrensphosphorsaeure
DE3360853D1 (en) * 1982-02-12 1985-10-31 Hoechst Ag Process for the reduction of the heavy metal content in raw phosphate
IL69100A (en) * 1982-07-21 1986-11-30 Hoechst Ag Process for removing heavy metal ions and arsenic from wet-processed phosphoric acid
DE3325862A1 (de) * 1983-07-18 1985-01-31 Hoechst Ag, 6230 Frankfurt Verfahren und vorrichtung zur entfernung von organischen verunreinigungen aus nassverfahrensphosphorsaeure
DE19703884C2 (de) 1997-02-03 1999-04-29 Bk Giulini Chem Gmbh & Co Ohg Verfahren zur Reinigung von Naßverfahrensphosphorsäure

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1472520A (fr) * 1966-03-23 1967-03-10 Marchon Products Ltd Procédé de désulfatation de l'acide phosphorique

Also Published As

Publication number Publication date
DD120417A5 (fr) 1976-06-12
SU671716A3 (ru) 1979-06-30
DK137229B (da) 1978-02-06
SE7511066L (sv) 1976-04-05
DK137229C (da) 1978-07-10
IL48236A (en) 1978-04-30
CA1045339A (fr) 1979-01-02
DK447575A (da) 1976-04-05
FR2286790B1 (fr) 1979-10-12
DE2447390B2 (de) 1977-10-20
FI752749A (fr) 1976-04-05
NL170839C (nl) 1983-01-03
AT358525B (de) 1980-09-10
IL48236A0 (en) 1975-12-31
DE2447390A1 (de) 1976-04-08
EG11849A (en) 1978-06-30
DE2447390C3 (de) 1983-11-17
NL170839B (nl) 1982-08-02
JPS537319B2 (fr) 1978-03-16
ATA753175A (de) 1980-02-15
FR2286790A1 (fr) 1976-04-30
IT1047666B (it) 1980-10-20
TR19680A (tr) 1979-10-05
BR7506423A (pt) 1976-08-10
ZA755820B (en) 1976-08-25
GB1524552A (en) 1978-09-13
BE834003A (fr) 1976-03-30
SE401668B (sv) 1978-05-22
JPS5163394A (en) 1976-06-01
CH599900A5 (fr) 1978-06-15
NL7511568A (nl) 1976-04-06

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