CA1109635A - Purifying and defluorinating impure phosphoric acid - Google Patents

Purifying and defluorinating impure phosphoric acid

Info

Publication number
CA1109635A
CA1109635A CA303,785A CA303785A CA1109635A CA 1109635 A CA1109635 A CA 1109635A CA 303785 A CA303785 A CA 303785A CA 1109635 A CA1109635 A CA 1109635A
Authority
CA
Canada
Prior art keywords
phosphoric acid
solution
counter
acid
steam
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
CA303,785A
Other languages
English (en)
French (fr)
Inventor
Armand Mamourian
Francois Bousquet
Jacques Helgorsky
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
Priority claimed from FR7715623A external-priority patent/FR2391954A2/fr
Priority claimed from FR7800771A external-priority patent/FR2421845A2/fr
Application filed by Rhone Poulenc Industries SA filed Critical Rhone Poulenc Industries SA
Application granted granted Critical
Publication of CA1109635A publication Critical patent/CA1109635A/en
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

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Extraction Or Liquid Replacement (AREA)
  • Removal Of Specific Substances (AREA)
CA303,785A 1977-05-23 1978-05-19 Purifying and defluorinating impure phosphoric acid Expired CA1109635A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR77.15623 1977-05-23
FR7715623A FR2391954A2 (fr) 1977-05-23 1977-05-23 Procede de purification d'un acide phosphorique de voie humide
FR7800771A FR2421845A2 (fr) 1978-01-12 1978-01-12 Procede de purification d'un acide phosphorique de voie humide
FR78.00771 1978-01-12

Publications (1)

Publication Number Publication Date
CA1109635A true CA1109635A (en) 1981-09-29

Family

ID=26220035

Family Applications (1)

Application Number Title Priority Date Filing Date
CA303,785A Expired CA1109635A (en) 1977-05-23 1978-05-19 Purifying and defluorinating impure phosphoric acid

Country Status (9)

Country Link
JP (1) JPS5413497A (de)
BR (1) BR7803244A (de)
CA (1) CA1109635A (de)
DE (1) DE2822303B2 (de)
ES (1) ES470068A1 (de)
GB (1) GB1601428A (de)
IT (1) IT1105409B (de)
NL (1) NL7805497A (de)
PH (1) PH13509A (de)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3325121A1 (de) * 1983-07-12 1985-01-24 Hoechst Ag, 6230 Frankfurt Verfahren und vorrichtung zur entfernung von fluor und organischen verbindungen aus vorgefertigter nassverfahrensphosphorsaeure
JPS60121733A (ja) * 1984-07-31 1985-06-29 Shinkawa Ltd インナ−リ−ドボンダ−
CN111874884B (zh) * 2020-07-23 2023-08-04 湖北祥云(集团)化工股份有限公司 一种湿法磷酸的脱氟方法及系统
CN116374971A (zh) * 2023-03-07 2023-07-04 湖北鄂中生态农业科技有限公司 磷酸的提纯方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5037158A (de) * 1973-08-10 1975-04-07

Also Published As

Publication number Publication date
NL7805497A (nl) 1978-11-27
GB1601428A (en) 1981-10-28
ES470068A1 (es) 1979-09-16
IT1105409B (it) 1985-11-04
BR7803244A (pt) 1978-12-19
DE2822303B2 (de) 1980-07-03
IT7849488A0 (it) 1978-05-22
DE2822303A1 (de) 1978-11-30
JPS5413497A (en) 1979-01-31
PH13509A (en) 1980-06-03

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Legal Events

Date Code Title Description
MKEX Expiry