NL8006691A - Werkwijze voor het verwijderen van fluor uit fosforzuur. - Google Patents

Werkwijze voor het verwijderen van fluor uit fosforzuur. Download PDF

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Publication number
NL8006691A
NL8006691A NL8006691A NL8006691A NL8006691A NL 8006691 A NL8006691 A NL 8006691A NL 8006691 A NL8006691 A NL 8006691A NL 8006691 A NL8006691 A NL 8006691A NL 8006691 A NL8006691 A NL 8006691A
Authority
NL
Netherlands
Prior art keywords
phosphoric acid
silica gel
content
range
pore volume
Prior art date
Application number
NL8006691A
Other languages
English (en)
Dutch (nl)
Original Assignee
Uhde Gmbh
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 Uhde Gmbh filed Critical Uhde Gmbh
Publication of NL8006691A publication Critical patent/NL8006691A/nl

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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
NL8006691A 1980-03-13 1980-12-09 Werkwijze voor het verwijderen van fluor uit fosforzuur. NL8006691A (nl)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3009622 1980-03-13
DE19803009622 DE3009622A1 (de) 1980-03-13 1980-03-13 Entfluorierungsverfahren von phosphorsaeure

Publications (1)

Publication Number Publication Date
NL8006691A true NL8006691A (nl) 1981-10-01

Family

ID=6097079

Family Applications (1)

Application Number Title Priority Date Filing Date
NL8006691A NL8006691A (nl) 1980-03-13 1980-12-09 Werkwijze voor het verwijderen van fluor uit fosforzuur.

Country Status (8)

Country Link
US (1) US4347228A (fr)
JP (1) JPS56169111A (fr)
BE (1) BE887113A (fr)
DE (1) DE3009622A1 (fr)
FR (1) FR2478062B1 (fr)
GB (1) GB2074994B (fr)
MA (1) MA19094A1 (fr)
NL (1) NL8006691A (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3913853A1 (de) * 1989-04-27 1990-10-31 Hoechst Ag Verfahren zur aufarbeitung von phosphorsaeure
US5002744A (en) * 1990-05-11 1991-03-26 Imc Fertilizer, Inc. Method for defluorinating wet process phosphoric acid
CN115504441B (zh) * 2022-09-14 2023-11-17 云南磷化集团有限公司 一种高效回收精制磷酸氟资源的装置及其方法

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2123785A (en) * 1936-03-02 1938-07-12 Victor Chemical Works Removal of fluorine from phosphoric acid
US2132349A (en) * 1937-01-02 1938-10-04 Monsanto Chemicals Treatment of phosphoric acid to remove fluorine
US2987376A (en) * 1956-12-27 1961-06-06 Int Minerals & Chem Corp Method for defluorination of phosphoric acid
US3151941A (en) * 1960-05-02 1964-10-06 Smith Douglass Company Inc Defluorination of peosphoric acid
US3193351A (en) * 1961-07-05 1965-07-06 Nat Distillers Chem Corp Removal of fluorine from wet process prosphoric acid

Also Published As

Publication number Publication date
US4347228A (en) 1982-08-31
GB2074994A (en) 1981-11-11
DE3009622A1 (de) 1981-09-24
FR2478062A1 (fr) 1981-09-18
FR2478062B1 (fr) 1985-10-11
BE887113A (fr) 1981-05-14
JPS56169111A (en) 1981-12-25
MA19094A1 (fr) 1981-10-01
GB2074994B (en) 1983-09-21

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Legal Events

Date Code Title Description
A85 Still pending on 85-01-01
BA A request for search or an international-type search has been filed
BB A search report has been drawn up
BC A request for examination has been filed
BV The patent application has lapsed