FR2286106A1 - Procede de preparation de phosphates condenses, en particulier de triphosphates de sodium - Google Patents

Procede de preparation de phosphates condenses, en particulier de triphosphates de sodium

Info

Publication number
FR2286106A1
FR2286106A1 FR7432829A FR7432829A FR2286106A1 FR 2286106 A1 FR2286106 A1 FR 2286106A1 FR 7432829 A FR7432829 A FR 7432829A FR 7432829 A FR7432829 A FR 7432829A FR 2286106 A1 FR2286106 A1 FR 2286106A1
Authority
FR
France
Prior art keywords
pref
degrees
pptg
ppt
phosphate
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
FR7432829A
Other languages
English (en)
Other versions
FR2286106B3 (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.)
SKW Stickstoffwerke Piesteritz GmbH
Original Assignee
SKW Stickstoffwerke Piesteritz 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 SKW Stickstoffwerke Piesteritz GmbH filed Critical SKW Stickstoffwerke Piesteritz GmbH
Priority to FR7432829A priority Critical patent/FR2286106A1/fr
Publication of FR2286106A1 publication Critical patent/FR2286106A1/fr
Application granted granted Critical
Publication of FR2286106B3 publication Critical patent/FR2286106B3/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05B—PHOSPHATIC FERTILISERS
    • C05B11/00—Fertilisers produced by wet-treating or leaching raw materials either with acids in such amounts and concentrations as to yield solutions followed by neutralisation, or with alkaline lyes
    • 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
    • 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
    • C01B25/41—Polyphosphates of alkali metals
    • C01B25/412—Preparation from alkali metal orthophosphates
    • C01B25/416—Pure alkali metal polyphosphates from impure starting materials
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B22/00—Use of inorganic materials as active ingredients for mortars, concrete or artificial stone, e.g. accelerators, shrinkage compensating agents
    • C04B22/08—Acids or salts thereof
    • C04B22/16—Acids or salts thereof containing phosphorus in the anion, e.g. phosphates
FR7432829A 1974-09-30 1974-09-30 Procede de preparation de phosphates condenses, en particulier de triphosphates de sodium Granted FR2286106A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7432829A FR2286106A1 (fr) 1974-09-30 1974-09-30 Procede de preparation de phosphates condenses, en particulier de triphosphates de sodium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7432829A FR2286106A1 (fr) 1974-09-30 1974-09-30 Procede de preparation de phosphates condenses, en particulier de triphosphates de sodium

Publications (2)

Publication Number Publication Date
FR2286106A1 true FR2286106A1 (fr) 1976-04-23
FR2286106B3 FR2286106B3 (fr) 1976-10-22

Family

ID=9143568

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7432829A Granted FR2286106A1 (fr) 1974-09-30 1974-09-30 Procede de preparation de phosphates condenses, en particulier de triphosphates de sodium

Country Status (1)

Country Link
FR (1) FR2286106A1 (fr)

Also Published As

Publication number Publication date
FR2286106B3 (fr) 1976-10-22

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Legal Events

Date Code Title Description
ST Notification of lapse