BR7504306A - Aperfeicoamento em processo para preparacao de acido fosforico puro - Google Patents

Aperfeicoamento em processo para preparacao de acido fosforico puro

Info

Publication number
BR7504306A
BR7504306A BR7505519D BR7505519D BR7504306A BR 7504306 A BR7504306 A BR 7504306A BR 7505519 D BR7505519 D BR 7505519D BR 7505519 D BR7505519 D BR 7505519D BR 7504306 A BR7504306 A BR 7504306A
Authority
BR
Brazil
Prior art keywords
preparation
processing
phosphoric acid
pure phosphoric
pure
Prior art date
Application number
BR7505519D
Other languages
English (en)
Portuguese (pt)
Inventor
M Uchida
Y Fujii
I Toshimitsu
S Fujii
Original Assignee
Toyo Soda Mfg 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 Mfg Co Ltd filed Critical Toyo Soda Mfg Co Ltd
Publication of BR7504306A publication Critical patent/BR7504306A/pt

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)
BR7505519D 1974-07-09 1975-07-08 Aperfeicoamento em processo para preparacao de acido fosforico puro BR7504306A (pt)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
BR7504306A true BR7504306A (pt) 1976-07-06

Family

ID=13643261

Family Applications (1)

Application Number Title Priority Date Filing Date
BR7505519D BR7504306A (pt) 1974-07-09 1975-07-08 Aperfeicoamento em processo para preparacao de acido fosforico puro

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)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5297393A (en) * 1976-02-13 1977-08-16 Toyo Soda Mfg Co Ltd Purification of extracted phosphoric acid
JPS5297394A (en) * 1976-02-13 1977-08-16 Toyo Soda Mfg Co Ltd Removal of organic matter in phosphoric acid
FR2391954A2 (fr) * 1977-05-23 1978-12-22 Rhone Poulenc Ind Procede de purification d'un acide phosphorique de voie humide
FR2421845A2 (fr) * 1978-01-12 1979-11-02 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

Also Published As

Publication number Publication date
AU475462B2 (en) 1976-08-26
JPS5652848B2 (de) 1981-12-15
JPS516894A (en) 1976-01-20
DE2530658C3 (de) 1983-11-17
DE2530658A1 (de) 1976-01-29
IT1039720B (it) 1979-12-10
FR2277767B1 (de) 1980-08-08
DE2530658B2 (de) 1977-06-23
GB1463224A (en) 1977-02-02
AU8268875A (en) 1976-08-26
FR2277767A1 (fr) 1976-02-06

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