FR2317223A1 - NEW PROCESS FOR THE PREPARATION OF ALKALINE PHOSPHATE SOLUTIONS POOR IN VANADIUM - Google Patents

NEW PROCESS FOR THE PREPARATION OF ALKALINE PHOSPHATE SOLUTIONS POOR IN VANADIUM

Info

Publication number
FR2317223A1
FR2317223A1 FR7619622A FR7619622A FR2317223A1 FR 2317223 A1 FR2317223 A1 FR 2317223A1 FR 7619622 A FR7619622 A FR 7619622A FR 7619622 A FR7619622 A FR 7619622A FR 2317223 A1 FR2317223 A1 FR 2317223A1
Authority
FR
France
Prior art keywords
vanadium
preparation
new process
alkaline phosphate
phosphate solutions
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.)
Granted
Application number
FR7619622A
Other languages
French (fr)
Other versions
FR2317223B1 (en
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 FR2317223A1 publication Critical patent/FR2317223A1/en
Application granted granted Critical
Publication of FR2317223B1 publication Critical patent/FR2317223B1/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
    • C01B25/26—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
FR7619622A 1975-06-28 1976-06-28 NEW PROCESS FOR THE PREPARATION OF ALKALINE PHOSPHATE SOLUTIONS POOR IN VANADIUM Granted FR2317223A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19752528896 DE2528896C2 (en) 1975-06-28 1975-06-28 Process for the preparation of a low-vanadium alkali metal phosphate solution

Publications (2)

Publication Number Publication Date
FR2317223A1 true FR2317223A1 (en) 1977-02-04
FR2317223B1 FR2317223B1 (en) 1979-06-22

Family

ID=5950156

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7619622A Granted FR2317223A1 (en) 1975-06-28 1976-06-28 NEW PROCESS FOR THE PREPARATION OF ALKALINE PHOSPHATE SOLUTIONS POOR IN VANADIUM

Country Status (6)

Country Link
BE (1) BE843493A (en)
DE (1) DE2528896C2 (en)
ES (1) ES447972A1 (en)
FR (1) FR2317223A1 (en)
GB (1) GB1485599A (en)
NL (1) NL7606986A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0178526A2 (en) * 1984-10-15 1986-04-23 Hoechst Aktiengesellschaft Apparatus for the reduction of iron and vanadium in phosphoric-acid solutions

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1191558A (en) * 1957-03-19 1959-10-20 Saint Gobain Preparation of colorless alkaline phosphates
US3305305A (en) * 1962-12-26 1967-02-21 Hooker Chemical Corp Purification of phosphate solutions
GB1102381A (en) * 1964-06-18 1968-02-07 Marchon Products Ltd Improvements in the manufacture of alkali metal phosphates
US3493336A (en) * 1964-06-18 1970-02-03 Electric Reduction Co Manufacture of alkali metal phosphates

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1567619C3 (en) * 1965-05-15 1974-08-15 Knapsack Ag, 5033 Huerth-Knapsack Process for the preparation of low-vanadium alkali phosphates
US3421846A (en) * 1965-06-07 1969-01-14 Hooker Chemical Corp Production of sodium phosphates

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1191558A (en) * 1957-03-19 1959-10-20 Saint Gobain Preparation of colorless alkaline phosphates
US3305305A (en) * 1962-12-26 1967-02-21 Hooker Chemical Corp Purification of phosphate solutions
GB1102381A (en) * 1964-06-18 1968-02-07 Marchon Products Ltd Improvements in the manufacture of alkali metal phosphates
US3493336A (en) * 1964-06-18 1970-02-03 Electric Reduction Co Manufacture of alkali metal phosphates

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0178526A2 (en) * 1984-10-15 1986-04-23 Hoechst Aktiengesellschaft Apparatus for the reduction of iron and vanadium in phosphoric-acid solutions
EP0178526A3 (en) * 1984-10-15 1987-03-25 Hoechst Aktiengesellschaft Apparatus for the reduction of iron and vanadium in phosphoric-acid solutions

Also Published As

Publication number Publication date
NL7606986A (en) 1976-12-30
DE2528896A1 (en) 1977-01-13
FR2317223B1 (en) 1979-06-22
BE843493A (en) 1976-12-28
ES447972A1 (en) 1977-06-16
DE2528896C2 (en) 1984-07-12
GB1485599A (en) 1977-09-14

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Legal Events

Date Code Title Description
ST Notification of lapse