FR2277767B1 - - Google Patents

Info

Publication number
FR2277767B1
FR2277767B1 FR7520586A FR7520586A FR2277767B1 FR 2277767 B1 FR2277767 B1 FR 2277767B1 FR 7520586 A FR7520586 A FR 7520586A FR 7520586 A FR7520586 A FR 7520586A FR 2277767 B1 FR2277767 B1 FR 2277767B1
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
FR7520586A
Other languages
French (fr)
Other versions
FR2277767A1 (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.)
Tosoh Corp
Original Assignee
Toyo Soda Manufacturing Co Ltd
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 Toyo Soda Manufacturing Co Ltd filed Critical Toyo Soda Manufacturing Co Ltd
Publication of FR2277767A1 publication Critical patent/FR2277767A1/fr
Application granted granted Critical
Publication of FR2277767B1 publication Critical patent/FR2277767B1/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
    • C01B25/2343—Concentration concomitant with purification, e.g. elimination of fluorine

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Silicon Compounds (AREA)
FR7520586A 1974-07-09 1975-07-01 Procede de preparation d'acide phosphorique pur Granted FR2277767A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7777374A JPS516894A (en) 1974-07-09 1974-07-09 Seiseirinsanno seizoho

Publications (2)

Publication Number Publication Date
FR2277767A1 FR2277767A1 (fr) 1976-02-06
FR2277767B1 true FR2277767B1 (de) 1980-08-08

Family

ID=13643261

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7520586A Granted FR2277767A1 (fr) 1974-07-09 1975-07-01 Procede de preparation d'acide phosphorique pur

Country Status (7)

Country Link
JP (1) JPS516894A (de)
AU (1) AU475462B2 (de)
BR (1) BR7504306A (de)
DE (1) DE2530658C3 (de)
FR (1) FR2277767A1 (de)
GB (1) GB1463224A (de)
IT (1) IT1039720B (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL443061A1 (pl) * 2022-12-06 2024-06-10 Politechnika Wrocławska Sposób wytwarzania czystego kwasu fosforowego na bazie struwitu

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5297394A (en) * 1976-02-13 1977-08-16 Toyo Soda Mfg Co Ltd Removal of organic matter in phosphoric acid
JPS5297393A (en) * 1976-02-13 1977-08-16 Toyo Soda Mfg Co Ltd Purification of extracted phosphoric acid
FR2421845A2 (fr) * 1978-01-12 1979-11-02 Rhone Poulenc Ind Procede de purification d'un acide phosphorique de voie humide
FR2391954A2 (fr) * 1977-05-23 1978-12-22 Rhone Poulenc Ind Procede de purification d'un acide phosphorique de voie humide
CN112661127A (zh) * 2021-03-08 2021-04-16 昆明理工大学 提高湿法磷酸氟收率的系统

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD30306A (de) *
US2165100A (en) * 1936-08-28 1939-07-04 Virginia Chemical Corp Process for purifying phosphoric acid
US2415797A (en) * 1942-10-02 1947-02-11 Westvaco Chlorine Products Cor Preparation of pure phosphoric acid
US2977196A (en) * 1955-07-01 1961-03-28 Int Minerals & Chem Corp Defluorination method
US2987376A (en) * 1956-12-27 1961-06-06 Int Minerals & Chem Corp Method for defluorination of phosphoric acid
DE1148531B (de) * 1960-05-25 1963-05-16 Int Minerals & Chem Corp Verfahren zum Entfluorieren fluorhaltiger, saurer phosphathaltiger Loesungen
US3193351A (en) * 1961-07-05 1965-07-06 Nat Distillers Chem Corp Removal of fluorine from wet process prosphoric acid
DE1667435B1 (de) * 1967-12-19 1971-09-16 Kalk Chemische Fabrik Gmbh Verfahren zur herstellung fluorarmer phosphorsaeure
US3718729A (en) * 1971-03-15 1973-02-27 American Cyanamid Co Defluorination of wet process phosphoric acid
BE788733A (fr) * 1971-09-13 1973-03-13 Int Standard Electric Corp Perfectionnements aux composes de remplissage pour cables
JPS5018388A (de) * 1973-06-21 1975-02-26

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL443061A1 (pl) * 2022-12-06 2024-06-10 Politechnika Wrocławska Sposób wytwarzania czystego kwasu fosforowego na bazie struwitu

Also Published As

Publication number Publication date
BR7504306A (pt) 1976-07-06
JPS516894A (en) 1976-01-20
GB1463224A (en) 1977-02-02
AU475462B2 (en) 1976-08-26
DE2530658C3 (de) 1983-11-17
IT1039720B (it) 1979-12-10
AU8268875A (en) 1976-08-26
DE2530658A1 (de) 1976-01-29
JPS5652848B2 (de) 1981-12-15
FR2277767A1 (fr) 1976-02-06
DE2530658B2 (de) 1977-06-23

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Legal Events

Date Code Title Description
ST Notification of lapse