IT7849488A0 - PURIFICATION AND FLUORATION PROCEDURE OF AN IMPURE PHOSPHORIC ACID TO OBTAIN A FOOD QUALITY PHOSPHORIC ACID - Google Patents

PURIFICATION AND FLUORATION PROCEDURE OF AN IMPURE PHOSPHORIC ACID TO OBTAIN A FOOD QUALITY PHOSPHORIC ACID

Info

Publication number
IT7849488A0
IT7849488A0 IT7849488A IT4948878A IT7849488A0 IT 7849488 A0 IT7849488 A0 IT 7849488A0 IT 7849488 A IT7849488 A IT 7849488A IT 4948878 A IT4948878 A IT 4948878A IT 7849488 A0 IT7849488 A0 IT 7849488A0
Authority
IT
Italy
Prior art keywords
phosphoric acid
fluoration
purification
procedure
food quality
Prior art date
Application number
IT7849488A
Other languages
Italian (it)
Other versions
IT1105409B (en
Original Assignee
Rhone Poulenc Ind
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/en
Priority claimed from FR7800771A external-priority patent/FR2421845A2/en
Application filed by Rhone Poulenc Ind filed Critical Rhone Poulenc Ind
Publication of IT7849488A0 publication Critical patent/IT7849488A0/en
Application granted granted Critical
Publication of IT1105409B publication Critical patent/IT1105409B/en

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)
IT49488/78A 1977-05-23 1978-05-22 PURIFICATION AND FLUORATION PROCEDURE OF AN IMPURE PHOSPHORIC ACID TO OBTAIN A FOOD-QUALITY PHOSPHORIC ACID IT1105409B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR7715623A FR2391954A2 (en) 1977-05-23 1977-05-23 WET PHOSPHORIC ACID PURIFICATION PROCESS
FR7800771A FR2421845A2 (en) 1978-01-12 1978-01-12 PROCESS FOR PURIFYING A WET PHOSPHORIC ACID

Publications (2)

Publication Number Publication Date
IT7849488A0 true IT7849488A0 (en) 1978-05-22
IT1105409B IT1105409B (en) 1985-11-04

Family

ID=26220035

Family Applications (1)

Application Number Title Priority Date Filing Date
IT49488/78A IT1105409B (en) 1977-05-23 1978-05-22 PURIFICATION AND FLUORATION PROCEDURE OF AN IMPURE PHOSPHORIC ACID TO OBTAIN A FOOD-QUALITY PHOSPHORIC ACID

Country Status (9)

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

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3325121A1 (en) * 1983-07-12 1985-01-24 Hoechst Ag, 6230 Frankfurt METHOD AND DEVICE FOR REMOVING FLUOR AND ORGANIC COMPOUNDS FROM PRE-PREPARED WET METAL PHOSPHORIC ACID
JPS60121733A (en) * 1984-07-31 1985-06-29 Shinkawa Ltd Inner lead bonder
CN111874884B (en) * 2020-07-23 2023-08-04 湖北祥云(集团)化工股份有限公司 Defluorination method and system for wet-process phosphoric acid
CN116374971A (en) * 2023-03-07 2023-07-04 湖北鄂中生态农业科技有限公司 Method for purifying phosphoric acid

Family Cites Families (1)

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

Also Published As

Publication number Publication date
IT1105409B (en) 1985-11-04
JPS5413497A (en) 1979-01-31
DE2822303B2 (en) 1980-07-03
CA1109635A (en) 1981-09-29
NL7805497A (en) 1978-11-27
BR7803244A (en) 1978-12-19
PH13509A (en) 1980-06-03
DE2822303A1 (en) 1978-11-30
ES470068A1 (en) 1979-09-16
GB1601428A (en) 1981-10-28

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