FR2183277B1 - - Google Patents

Info

Publication number
FR2183277B1
FR2183277B1 FR7316190A FR7316190A FR2183277B1 FR 2183277 B1 FR2183277 B1 FR 2183277B1 FR 7316190 A FR7316190 A FR 7316190A FR 7316190 A FR7316190 A FR 7316190A FR 2183277 B1 FR2183277 B1 FR 2183277B1
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
FR7316190A
Other versions
FR2183277A1 (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.)
Hoechst AG
Original Assignee
Hoechst AG
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 Hoechst AG filed Critical Hoechst AG
Publication of FR2183277A1 publication Critical patent/FR2183277A1/fr
Application granted granted Critical
Publication of FR2183277B1 publication Critical patent/FR2183277B1/fr
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
    • C01B25/22—Preparation by reacting phosphate-containing material with an acid, e.g. wet process
    • C01B25/222—Preparation by reacting phosphate-containing material with an acid, e.g. wet process with sulfuric acid, a mixture of acids mainly consisting of sulfuric acid or a mixture of compounds forming it in situ, e.g. a mixture of sulfur dioxide, water and oxygen
    • 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
    • C01B25/22—Preparation by reacting phosphate-containing material with an acid, e.g. wet process
    • C01B25/2208—Preparation by reacting phosphate-containing material with an acid, e.g. wet process with an acid or a mixture of acids other than sulfuric acid
    • 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
    • C01B25/237—Selective elimination of impurities
    • C01B25/2372—Anionic impurities, e.g. silica or boron compounds
    • C01B25/2375—Fluoride or fluosilicate anion

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Silicates, Zeolites, And Molecular Sieves (AREA)
  • Silicon Compounds (AREA)
  • Extraction Or Liquid Replacement (AREA)
FR7316190A 1972-05-04 1973-05-04 Expired FR2183277B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722221745 DE2221745C3 (de) 1972-05-04 1972-05-04 Verfahren zum Entfluorieren von Phosphorsäure

Publications (2)

Publication Number Publication Date
FR2183277A1 FR2183277A1 (fr) 1973-12-14
FR2183277B1 true FR2183277B1 (fr) 1976-11-12

Family

ID=5843984

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7316190A Expired FR2183277B1 (fr) 1972-05-04 1973-05-04

Country Status (5)

Country Link
CA (1) CA1001824A (fr)
DE (1) DE2221745C3 (fr)
FR (1) FR2183277B1 (fr)
GB (1) GB1396217A (fr)
NL (1) NL7305595A (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1299977C (zh) * 2005-11-04 2007-02-14 华中师范大学 一种快速去除湿法粗磷酸中固体物及氟的方法

Also Published As

Publication number Publication date
DE2221745C3 (de) 1980-11-27
FR2183277A1 (fr) 1973-12-14
DE2221745B2 (de) 1980-04-03
NL7305595A (fr) 1973-11-06
CA1001824A (en) 1976-12-21
GB1396217A (en) 1975-06-04
DE2221745A1 (de) 1973-11-15

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Legal Events

Date Code Title Description
TP Transmission of property
ST Notification of lapse