FR2286790A1 - Procede et appareillage destines a la decontamination de l'acide phosphorique prepare par voie humide - Google Patents

Procede et appareillage destines a la decontamination de l'acide phosphorique prepare par voie humide

Info

Publication number
FR2286790A1
FR2286790A1 FR7530417A FR7530417A FR2286790A1 FR 2286790 A1 FR2286790 A1 FR 2286790A1 FR 7530417 A FR7530417 A FR 7530417A FR 7530417 A FR7530417 A FR 7530417A FR 2286790 A1 FR2286790 A1 FR 2286790A1
Authority
FR
France
Prior art keywords
decontamination
phosphoric acid
acid prepared
wet route
route
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.)
Granted
Application number
FR7530417A
Other languages
English (en)
Other versions
FR2286790B1 (fr
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 FR2286790A1 publication Critical patent/FR2286790A1/fr
Application granted granted Critical
Publication of FR2286790B1 publication Critical patent/FR2286790B1/fr
Granted 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
FR7530417A 1974-10-04 1975-10-03 Procede et appareillage destines a la decontamination de l'acide phosphorique prepare par voie humide Granted FR2286790A1 (fr)

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 (2)

Publication Number Publication Date
FR2286790A1 true FR2286790A1 (fr) 1976-04-30
FR2286790B1 FR2286790B1 (fr) 1979-10-12

Family

ID=5927552

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7530417A Granted FR2286790A1 (fr) 1974-10-04 1975-10-03 Procede et appareillage destines a la decontamination de l'acide phosphorique prepare par voie humide

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)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0085343A2 (fr) * 1982-01-28 1983-08-10 Hoechst Aktiengesellschaft Procédé de purification d'acide phosphorique obtenu par voie humide

Families Citing this family (7)

* 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"
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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0085343A2 (fr) * 1982-01-28 1983-08-10 Hoechst Aktiengesellschaft Procédé de purification d'acide phosphorique obtenu par voie humide
EP0085343A3 (en) * 1982-01-28 1984-03-28 Hoechst Aktiengesellschaft Process for the purification of wet-process phosphoric acid

Also Published As

Publication number Publication date
CA1045339A (fr) 1979-01-02
BE834003A (fr) 1976-03-30
TR19680A (tr) 1979-10-05
DE2447390A1 (de) 1976-04-08
SE401668B (sv) 1978-05-22
DE2447390B2 (de) 1977-10-20
FI752749A (fr) 1976-04-05
JPS537319B2 (fr) 1978-03-16
AT358525B (de) 1980-09-10
ATA753175A (de) 1980-02-15
DK447575A (da) 1976-04-05
NL7511568A (nl) 1976-04-06
NL170839C (nl) 1983-01-03
DD120417A5 (fr) 1976-06-12
DE2447390C3 (de) 1983-11-17
FR2286790B1 (fr) 1979-10-12
IT1047666B (it) 1980-10-20
DK137229C (da) 1978-07-10
GB1524552A (en) 1978-09-13
DK137229B (da) 1978-02-06
ZA755820B (en) 1976-08-25
IL48236A (en) 1978-04-30
SE7511066L (sv) 1976-04-05
SU671716A3 (ru) 1979-06-30
IL48236A0 (en) 1975-12-31
JPS5163394A (en) 1976-06-01
NL170839B (nl) 1982-08-02
ES441121A1 (es) 1977-03-16
BR7506423A (pt) 1976-08-10
CH599900A5 (fr) 1978-06-15
EG11849A (en) 1978-06-30

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Legal Events

Date Code Title Description
ST Notification of lapse