FR2233281A2 - Sodium polyphosphate prepn - by granulating sodium orthophosphate with water or aqs orthophosphate soln drying and heat treating granules - Google Patents

Sodium polyphosphate prepn - by granulating sodium orthophosphate with water or aqs orthophosphate soln drying and heat treating granules

Info

Publication number
FR2233281A2
FR2233281A2 FR7321589A FR7321589A FR2233281A2 FR 2233281 A2 FR2233281 A2 FR 2233281A2 FR 7321589 A FR7321589 A FR 7321589A FR 7321589 A FR7321589 A FR 7321589A FR 2233281 A2 FR2233281 A2 FR 2233281A2
Authority
FR
France
Prior art keywords
orthophosphate
sodium
aqs
granules
water
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
FR7321589A
Other languages
French (fr)
Other versions
FR2233281B2 (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.)
Rhone Progil SA
Original Assignee
Rhone Progil SA
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 Rhone Progil SA filed Critical Rhone Progil SA
Priority to FR7321589A priority Critical patent/FR2233281A2/en
Priority to YU02038/73A priority patent/YU203873A/en
Priority to AR249320A priority patent/AR198859A1/en
Priority to IL42828A priority patent/IL42828A/en
Priority to NL7310452A priority patent/NL7310452A/xx
Priority to OA54973A priority patent/OA04450A/en
Priority to SE7310432A priority patent/SE396362B/en
Priority to CA177,606A priority patent/CA1020328A/en
Priority to IT51732/73A priority patent/IT1048264B/en
Priority to NO3058/73A priority patent/NO137590C/en
Priority to AU58685/73A priority patent/AU484069B2/en
Priority to GB3614573A priority patent/GB1414369A/en
Priority to DE19732338507 priority patent/DE2338507A1/en
Priority to JP8504873A priority patent/JPS5431480B2/ja
Priority to ES417424A priority patent/ES417424A1/en
Priority to PH14871A priority patent/PH14402A/en
Publication of FR2233281A2 publication Critical patent/FR2233281A2/en
Application granted granted Critical
Publication of FR2233281B2 publication Critical patent/FR2233281B2/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
    • C01B25/38—Condensed phosphates
    • C01B25/40—Polyphosphates
    • C01B25/41—Polyphosphates of alkali metals
    • C01B25/412—Preparation from alkali metal orthophosphates

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Detergent Compositions (AREA)

Abstract

Alkali metal polyphosphate with a predetermined crystalline form, esp. for use in detergent compositions, is prepd. by (a) granulating a dry alkali metal orthophosphate having a molar ratio of alkali metal oxide/phosphoric anhydride of 1 and 2, with water or an aqs. soln., (b) drying the formed spherical orthophosphate granules, and (c) thermally treating the granules in the presence of steam. Controlled hydration properties and particle size give low content of fine material, very high yields and hard granules of uniform compsn.
FR7321589A 1972-07-31 1973-06-14 Sodium polyphosphate prepn - by granulating sodium orthophosphate with water or aqs orthophosphate soln drying and heat treating granules Granted FR2233281A2 (en)

Priority Applications (16)

Application Number Priority Date Filing Date Title
FR7321589A FR2233281A2 (en) 1973-06-14 1973-06-14 Sodium polyphosphate prepn - by granulating sodium orthophosphate with water or aqs orthophosphate soln drying and heat treating granules
AR249320A AR198859A1 (en) 1972-07-31 1973-07-27 PROCEDURE FOR MANUFACTURING ALKALINE METAL POLYPHOSPHATES WITH CRYSTALLINE FORM AND SAID PRODUCT
IL42828A IL42828A (en) 1972-07-31 1973-07-27 Process and apparatus for the manufacture of alkali metal polyphosphates
NL7310452A NL7310452A (en) 1972-07-31 1973-07-27
OA54973A OA04450A (en) 1972-07-31 1973-07-27 A method and apparatus for the manufacture of alkali metal polyphosphates.
SE7310432A SE396362B (en) 1972-07-31 1973-07-27 PROCEDURE AND APPARATUS FOR THE PREPARATION OF ALKALI METAL POLYPHOSPHATE WITH PRE-DETERMINED CRYSTAL SHAPE
YU02038/73A YU203873A (en) 1972-07-31 1973-07-27 Process for producing polyphosphates of alkali metals
IT51732/73A IT1048264B (en) 1972-07-31 1973-07-30 PROCESS AND APPARATUS FOR THE MANUFACTURE OF ALKALINE POLYPHOSPHATES
CA177,606A CA1020328A (en) 1972-07-31 1973-07-30 Process for the manufacture of alkali metal polyphosphates
NO3058/73A NO137590C (en) 1972-07-31 1973-07-30 PROCEDURE FOR THE PREPARATION OF SODIUM POLYPHOSPHATES
AU58685/73A AU484069B2 (en) 1972-07-31 1973-07-30 Process and apparatus forthe manufacture of alkalimetal polyphophates
GB3614573A GB1414369A (en) 1972-07-31 1973-07-30 Process and apparatus for the manufacture of alkali metal polyprosphates
DE19732338507 DE2338507A1 (en) 1972-07-31 1973-07-30 PROCESS FOR THE PRODUCTION OF ALKALIPOLYPHOSPHATES
JP8504873A JPS5431480B2 (en) 1972-07-31 1973-07-30
ES417424A ES417424A1 (en) 1972-07-31 1973-07-31 Process and apparatus for the manufacture of alkali metal polyprosphates
PH14871A PH14402A (en) 1972-07-31 1973-07-31 Process for the manufacture of alkali metal polyphosphates

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7321589A FR2233281A2 (en) 1973-06-14 1973-06-14 Sodium polyphosphate prepn - by granulating sodium orthophosphate with water or aqs orthophosphate soln drying and heat treating granules

Publications (2)

Publication Number Publication Date
FR2233281A2 true FR2233281A2 (en) 1975-01-10
FR2233281B2 FR2233281B2 (en) 1978-03-17

Family

ID=9120931

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7321589A Granted FR2233281A2 (en) 1972-07-31 1973-06-14 Sodium polyphosphate prepn - by granulating sodium orthophosphate with water or aqs orthophosphate soln drying and heat treating granules

Country Status (1)

Country Link
FR (1) FR2233281A2 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1136937A (en) * 1954-10-21 1957-05-21 Knapsack Ag Compositions containing sodium triphosphate and a process for the preparation of these compositions

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1136937A (en) * 1954-10-21 1957-05-21 Knapsack Ag Compositions containing sodium triphosphate and a process for the preparation of these compositions

Also Published As

Publication number Publication date
FR2233281B2 (en) 1978-03-17

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