DE2635893A1 - Verfahren zum entfernen von fluor aus phosphorsaeureloesungen - Google Patents

Verfahren zum entfernen von fluor aus phosphorsaeureloesungen

Info

Publication number
DE2635893A1
DE2635893A1 DE19762635893 DE2635893A DE2635893A1 DE 2635893 A1 DE2635893 A1 DE 2635893A1 DE 19762635893 DE19762635893 DE 19762635893 DE 2635893 A DE2635893 A DE 2635893A DE 2635893 A1 DE2635893 A1 DE 2635893A1
Authority
DE
Germany
Prior art keywords
acid
phosphoric acid
phosphate
sodium
fluorine
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.)
Pending
Application number
DE19762635893
Other languages
German (de)
English (en)
Inventor
Mazin Riday Tarrytown Irani
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.)
Stauffer Chemical Co
Original Assignee
Stauffer Chemical Co
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 Stauffer Chemical Co filed Critical Stauffer Chemical Co
Publication of DE2635893A1 publication Critical patent/DE2635893A1/de
Pending 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
    • C01B25/26—Phosphates
    • C01B25/28—Ammonium phosphates
    • 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
    • C01B25/26—Phosphates
    • 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
    • C01B25/26—Phosphates
    • C01B25/30—Alkali metal phosphates
    • C01B25/301—Preparation from liquid orthophosphoric acid or from an acid solution or suspension of orthophosphates
    • C01B25/303—Preparation from liquid orthophosphoric acid or from an acid solution or suspension of orthophosphates with elimination of impurities
    • 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
    • C01B25/26—Phosphates
    • C01B25/38—Condensed phosphates
    • C01B25/40—Polyphosphates
    • C01B25/405—Polyphosphates of ammonium

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Removal Of Specific Substances (AREA)
  • Cleaning Or Drying Semiconductors (AREA)
DE19762635893 1975-08-14 1976-08-10 Verfahren zum entfernen von fluor aus phosphorsaeureloesungen Pending DE2635893A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/604,572 US4053561A (en) 1975-08-14 1975-08-14 Removal of fluorine from phosphatic solutions

Publications (1)

Publication Number Publication Date
DE2635893A1 true DE2635893A1 (de) 1977-02-24

Family

ID=24420165

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19762635893 Pending DE2635893A1 (de) 1975-08-14 1976-08-10 Verfahren zum entfernen von fluor aus phosphorsaeureloesungen

Country Status (12)

Country Link
US (1) US4053561A (enExample)
JP (1) JPS5223596A (enExample)
BE (1) BE845150A (enExample)
BR (1) BR7605233A (enExample)
CA (1) CA1071835A (enExample)
DE (1) DE2635893A1 (enExample)
ES (1) ES450704A1 (enExample)
FR (1) FR2320900A1 (enExample)
GB (1) GB1547212A (enExample)
IL (1) IL49926A (enExample)
NL (1) NL7608264A (enExample)
ZA (1) ZA764435B (enExample)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4199512A (en) * 1976-05-10 1980-04-22 E. R. Squibb & Sons, Inc. Compounds for alleviating hypertension
JPS5744441Y2 (enExample) * 1978-08-29 1982-10-01
US4511541A (en) * 1982-12-02 1985-04-16 J. R. Simplot Company Process for the recovery of cadmium and other metals from solution
DE3322503A1 (de) * 1983-06-23 1985-01-10 Hoechst Ag, 6230 Frankfurt Verfahren zur entfluorierung von alkaliphosphatloesungen
IL69426A (en) * 1983-08-03 1986-10-31 Negev Phosphates Ltd Process for the manufacture of purified phosphoric acid
DE3347421A1 (de) * 1983-12-29 1985-07-11 Hoechst Ag, 6230 Frankfurt Verfahren zur herstellung von fluorarmen alkaliphosphatloesungen
DE4011716A1 (de) * 1990-04-11 1991-10-17 Hoechst Ag Verfahren zur herstellung von alkaliphosphatloesungen
US8202449B2 (en) * 2006-10-31 2012-06-19 Icl Performance Products, Lp Corrosion-inhibited ammonium polyphosphate fire retardant compositions
EP2524215B1 (en) 2010-01-15 2018-12-26 Bio-Rad Laboratories, Inc. Surface neutralization of apatite
US8895707B2 (en) 2010-08-18 2014-11-25 Bio-Rad Laboratories, Inc. Elution of proteins from hydroxyapatite resins without resin deterioration
WO2012106449A1 (en) * 2011-02-02 2012-08-09 Bio-Rad Laboratories, Inc. Apatite surface neutralization with alkali solutions
US9815695B2 (en) 2012-05-30 2017-11-14 Bio-Rad Laboratories, Inc. In situ restoration of apatite-based chromatography resins
WO2014121398A1 (en) 2013-02-06 2014-08-14 X'aan Innovations Inc. Ammonium polyphosphate based fire-retardant compositions
EP3157551B1 (en) 2014-06-23 2023-02-15 Bio-Rad Laboratories, Inc. Apatite in-situ restoration
CN105392569B (zh) 2014-06-23 2019-08-20 生物辐射实验室股份有限公司 磷灰石预处理

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2044940A (en) * 1933-11-25 1936-06-23 Grasselli Chemical Co Preparation of a soluble phosphate
GB467843A (en) * 1936-01-06 1937-06-24 Kunstdunger Patent Verwertungs Method of separating fluorine and aluminium from solutions obtained by treatment of raw phosphate with acids
GB1052410A (enExample) * 1962-11-14
GB302485A (en) * 1963-04-01 1928-12-20 Saji Tsujita Improvements in or relating to distance meters
US3645682A (en) * 1967-09-13 1972-02-29 Multi Minerals Ltd A process for producing phosphoric acid by the use of ion exchange resins
DE2029564C3 (de) * 1970-06-16 1978-06-22 Giulini Chemie Gmbh, 6700 Ludwigshafen Verfahren zur Herstellung von reinen Alkaliphosphaten aus Rohphosphorsäure
US3937783A (en) * 1974-02-21 1976-02-10 Allied Chemical Corporation Recovery of fluorine, uranium and rare earth metal values from phosphoric acid by-product brine raffinate

Also Published As

Publication number Publication date
NL7608264A (nl) 1977-02-16
ZA764435B (en) 1977-07-27
IL49926A0 (en) 1976-08-31
US4053561A (en) 1977-10-11
ES450704A1 (es) 1977-12-16
JPS5223596A (en) 1977-02-22
BE845150A (fr) 1977-02-14
FR2320900B1 (enExample) 1979-09-07
IL49926A (en) 1978-08-31
BR7605233A (pt) 1977-08-09
FR2320900A1 (fr) 1977-03-11
GB1547212A (en) 1979-06-06
CA1071835A (en) 1980-02-19

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