FR2421845B2 - - Google Patents

Info

Publication number
FR2421845B2
FR2421845B2 FR7800771A FR7800771A FR2421845B2 FR 2421845 B2 FR2421845 B2 FR 2421845B2 FR 7800771 A FR7800771 A FR 7800771A FR 7800771 A FR7800771 A FR 7800771A FR 2421845 B2 FR2421845 B2 FR 2421845B2
Authority
FR
France
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
FR7800771A
Other versions
FR2421845A2 (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.)
Rhone Poulenc Industries SA
Original Assignee
Rhone Poulenc Industries SA
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 Rhone Poulenc Industries SA filed Critical Rhone Poulenc Industries SA
Priority to FR7800771A priority Critical patent/FR2421845A2/fr
Priority to CA303,785A priority patent/CA1109635A/fr
Priority to DE2822303A priority patent/DE2822303B2/de
Priority to BR7803244A priority patent/BR7803244A/pt
Priority to IT49488/78A priority patent/IT1105409B/it
Priority to ES470068A priority patent/ES470068A1/es
Priority to NL7805497A priority patent/NL7805497A/xx
Priority to JP6088878A priority patent/JPS5413497A/ja
Priority to IL5476478A priority patent/IL54764A/xx
Priority to GB21075/78A priority patent/GB1601428A/en
Priority to PH21180A priority patent/PH13509A/en
Publication of FR2421845A2 publication Critical patent/FR2421845A2/fr
Priority to US06/017,845 priority patent/US4285921A/en
Application granted granted Critical
Publication of FR2421845B2 publication Critical patent/FR2421845B2/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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
FR7800771A 1977-05-23 1978-01-12 Procede de purification d'un acide phosphorique de voie humide Granted FR2421845A2 (fr)

Priority Applications (12)

Application Number Priority Date Filing Date Title
FR7800771A FR2421845A2 (fr) 1978-01-12 1978-01-12 Procede de purification d'un acide phosphorique de voie humide
CA303,785A CA1109635A (fr) 1977-05-23 1978-05-19 Purification et defluoration d'acide phosphorique impur
GB21075/78A GB1601428A (en) 1977-05-23 1978-05-22 Process for purifying phosphoric acid
IT49488/78A IT1105409B (it) 1977-05-23 1978-05-22 Procedimento di purificazione e fluorazione di un acido fosforico impuro per ottenere un acido fosforico di qualita' alimentare
ES470068A ES470068A1 (es) 1977-05-23 1978-05-22 Un procedimiento de purificacion y de desfluoracion de un acido fosforico impuro
NL7805497A NL7805497A (nl) 1977-05-23 1978-05-22 Werkwijze voor het zuiveren van fosforzuur.
DE2822303A DE2822303B2 (de) 1977-05-23 1978-05-22 Verfahren zur Herstellung einer praktisch fluorfreien konzentrierten Phosphorsäurelösung
IL5476478A IL54764A (en) 1977-05-23 1978-05-22 Process for purifying and defluorinating an impure phosphoric acid
BR7803244A BR7803244A (pt) 1977-05-23 1978-05-22 Processo de purificacao e de desfluoracao de acido fosforico impuro
JP6088878A JPS5413497A (en) 1977-05-23 1978-05-22 Purifying method of wet process phosphoric acid
PH21180A PH13509A (en) 1977-05-23 1978-05-23 Deflourination process
US06/017,845 US4285921A (en) 1978-01-12 1979-12-28 6107845x

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7800771A FR2421845A2 (fr) 1978-01-12 1978-01-12 Procede de purification d'un acide phosphorique de voie humide

Publications (2)

Publication Number Publication Date
FR2421845A2 FR2421845A2 (fr) 1979-11-02
FR2421845B2 true FR2421845B2 (fr) 1981-07-03

Family

ID=9203364

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7800771A Granted FR2421845A2 (fr) 1977-05-23 1978-01-12 Procede de purification d'un acide phosphorique de voie humide

Country Status (2)

Country Link
US (1) US4285921A (fr)
FR (1) FR2421845A2 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3135801A1 (de) * 1981-09-10 1983-03-24 Hoechst Ag, 6000 Frankfurt Verfahren zur nachbehandlung von extraktionsrueckstaenden der phosphorsaeurereinigung
DE3442142A1 (de) * 1984-11-17 1986-05-22 Hoechst Ag, 6230 Frankfurt Verfahren zur entfernung von verunreinigungen aus phosphorsaeure
CN108622869B (zh) * 2018-07-04 2019-12-10 中化重庆涪陵化工有限公司 溶剂萃取法净化湿法磷酸的方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES336087A1 (es) * 1966-02-01 1967-12-16 Fmc Corp Procedimiento de purificacion de acido fosforico.
GB1296668A (fr) * 1969-03-24 1972-11-15
US4118462A (en) * 1974-02-01 1978-10-03 Rhone-Poulenc Industries Process for the preparation of purified phosphoric solutions from phosphoric acid
JPS516894A (en) * 1974-07-09 1976-01-20 Toyo Soda Mfg Co Ltd Seiseirinsanno seizoho
US4083937A (en) * 1974-07-09 1978-04-11 Toyo Soda Manufacturing Co., Ltd. Process for preparing pure phosphoric acid

Also Published As

Publication number Publication date
FR2421845A2 (fr) 1979-11-02
US4285921A (en) 1981-08-25

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