EP0061600A1 - Procédé de fabrication de granulés mixtes de phosphates condensés et de charges - Google Patents

Procédé de fabrication de granulés mixtes de phosphates condensés et de charges Download PDF

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Publication number
EP0061600A1
EP0061600A1 EP82101656A EP82101656A EP0061600A1 EP 0061600 A1 EP0061600 A1 EP 0061600A1 EP 82101656 A EP82101656 A EP 82101656A EP 82101656 A EP82101656 A EP 82101656A EP 0061600 A1 EP0061600 A1 EP 0061600A1
Authority
EP
European Patent Office
Prior art keywords
amount
mixture
water
ammonium polyphosphate
weight
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
EP82101656A
Other languages
German (de)
English (en)
Other versions
EP0061600B1 (fr
Inventor
Karl Dr. Merkenich
Horst Dieter Dr. Wasel-Nielen
Alexander Dr. Maurer
Renate Adrian
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
Priority to AT82101656T priority Critical patent/ATE11563T1/de
Publication of EP0061600A1 publication Critical patent/EP0061600A1/fr
Application granted granted Critical
Publication of EP0061600B1 publication Critical patent/EP0061600B1/fr
Expired legal-status Critical Current

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/02—Inorganic compounds ; Elemental compounds
    • C11D3/04—Water-soluble compounds
    • C11D3/06—Phosphates, including polyphosphates
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D3/00—Other compounding ingredients of detergent compositions covered in group C11D1/00
    • C11D3/02—Inorganic compounds ; Elemental compounds
    • C11D3/04—Water-soluble compounds
    • C11D3/06—Phosphates, including polyphosphates
    • C11D3/062—Special methods concerning phosphates

Definitions

  • the invention relates to a process for preparing mixed granulates from water-soluble condensed phosphates th of the general formula M 2 O (MPO 3) n in which M is sodium, potassium or ammonium, and n is a number between 4 and about 100, and builder salts.
  • M is sodium, potassium or ammonium
  • n is a number between 4 and about 100, and builder salts.
  • the P 2 0 5 content of the condensed phosphates ranges from 60.4 to 69.6%.
  • Na 2 CO 3 is used as the anhydrous component
  • the mixture is given a high level of alkalinity, which severely limits the range of use of the mixture in the detergent sector.
  • the total phosphate content is increased to an undesirable extent, so that such mixtures are not suitable for use as a component of detergent formulations with a reduced phosphate content.
  • the object of the present invention is to produce mixed granules from condensed phosphates and builder salts using the smallest possible amounts of granulating aids which do not adversely affect the wash-active properties of the condensed phosphate.
  • the granules produced should be free-flowing, storable and abrasion-resistant, so that they can be admixed as a detergent component to a base product produced by the hot spray process.
  • alkali metal salts of nitrilotriacetic acid and / or of poly-a-hydroxyacrylic acid and / or polyacrylic acid are preferably used as builder salts, the latter having a molecular weight of about 2000 to 30,000.
  • the polyphosphate of the general formula II must correspond in which n is an integer average value from 3 to 1000, in particular 10 to 1000, m is an integer up to a maximum of n + 2 and m / n is a value from 1.0 to 1.67, in particular approximately 1, corresponds.
  • the amount of builder is 5 to 50 Ge, 1%, the amount of ammonium polyphosphate 0.04-0.4% by weight and the amount of water 2-9% by weight, based in each case on the amount of the condensed phosphate.
  • the latter is advantageously characterized by a P 2 0 5 content of 60.4 to 69.6% by weight.
  • a variant of the process according to the invention consists in that the spraying of the water or the aqueous ammonium polyphosphate solution onto the mixture provided is carried out intermittently, the interruptions taking about 2 minutes. After each spray phase, the resulting granules can optionally be powdered on the surface with powdered pentasodium triphosphate.
  • abrasion-resistant, storable and non-baking mixed granules with a considerable proportion of condensed phosphates are obtained, which is surprising insofar as it was previously assumed that water would not be suitable for granulating melt phosphates or their mixtures with other substances and in use of water as a granulating aid, there would always be caking of the melt phosphate particles to form undesired larger aggregates, unless hydrated water-free salts which prevent water absorption of the melt phosphate are added to the melt phosphate.
  • the present invention is not tied to such a restriction, since the degree of hydration of the other granulate components is insignificant due to the presence of the ammonium polyphosphate as a binder.
  • the bulk density of the granules was 65 g / l. After storage for one week in a thin-walled plastic bag that was permeable to air humidity, only a few agglomerates had formed, which disintegrated into the individual granules due to little mechanical action.
  • Example 2 25 kg of a mixture corresponding to Example 1 were placed on a rotating turntable and the mixture was again intermittently sprayed with a 4% by weight solution of ammonium polyphosphate.
  • the mixture on the turntable was powdered with a total of 5 kg of a finely divided sodium tripolyphosphate after each spray phase. It had a hard granules formed, the particles than 150 / um were coarser to 85.6%.
  • the ammonium polyphos The phate content of the granules was 0.1% by weight, based on the amount of melt phosphate, and the bulk density was 63o g / l.
  • the abrasion resistance of the granules determined by the drum method gave a value of 69%. After storage for one week under the same conditions as in Example 1, there was still a slight tendency to form agglomerates.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Detergent Compositions (AREA)
  • Glanulating (AREA)
EP82101656A 1981-03-25 1982-03-04 Procédé de fabrication de granulés mixtes de phosphates condensés et de charges Expired EP0061600B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT82101656T ATE11563T1 (de) 1981-03-25 1982-03-04 Verfahren zur herstellung von mischgranulaten aus kondensierten phosphaten und gerueststoffsalzen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19813111617 DE3111617A1 (de) 1981-03-25 1981-03-25 Verfahren zur herstellung von mischgranulaten aus kondensierten phosphaten und gerueststoffsalzen
DE3111617 1981-03-25

Publications (2)

Publication Number Publication Date
EP0061600A1 true EP0061600A1 (fr) 1982-10-06
EP0061600B1 EP0061600B1 (fr) 1985-01-30

Family

ID=6128175

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82101656A Expired EP0061600B1 (fr) 1981-03-25 1982-03-04 Procédé de fabrication de granulés mixtes de phosphates condensés et de charges

Country Status (6)

Country Link
US (1) US4517109A (fr)
EP (1) EP0061600B1 (fr)
AT (1) ATE11563T1 (fr)
CA (1) CA1152844A (fr)
DE (2) DE3111617A1 (fr)
DK (1) DK134482A (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995015370A1 (fr) * 1993-12-03 1995-06-08 Monsanto Company Nitrilotriacetate de metal alcalin granulaire
US5998663A (en) * 1998-01-14 1999-12-07 Solutia, Inc. Granular alkali metal nitrilotriacetate

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1102329B (de) * 1959-10-01 1961-03-16 Basf Ag Spuelmittel zur Verhinderung von Inkrustierungen im Textilgut nach dem Waschen
US3354092A (en) * 1963-01-14 1967-11-21 Procter & Gamble Ammoniated granular cleaner
DE1903831A1 (de) * 1969-01-27 1970-09-03 Miele & Cie Maschinenfabrik Reinigungsmittel fuer Geschirrspuelautomaten

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2904513A (en) * 1954-04-16 1959-09-15 Monsanto Chemicals Inorganic phosphate compositions, and methods for the preparation and utilization thereof
US3627686A (en) * 1968-09-30 1971-12-14 Chemed Corp Machine dishwashing compositions containing sodium polyacrylate and nta
GB1384241A (en) * 1971-02-23 1975-02-19 Albright & Wilson Manufacture of ammonium polyphosphate
US4077897A (en) * 1976-02-13 1978-03-07 The Procter & Gamble Company Process for preparing detergent compositions
US4228025A (en) * 1979-06-29 1980-10-14 The Procter & Gamble Company Agglomeration process for making granular detergents
DE3035805A1 (de) * 1980-09-23 1982-05-06 Hoechst Ag, 6000 Frankfurt Verfahren zur herstellung von granulaten kondensierter phosphate

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1102329B (de) * 1959-10-01 1961-03-16 Basf Ag Spuelmittel zur Verhinderung von Inkrustierungen im Textilgut nach dem Waschen
US3354092A (en) * 1963-01-14 1967-11-21 Procter & Gamble Ammoniated granular cleaner
DE1903831A1 (de) * 1969-01-27 1970-09-03 Miele & Cie Maschinenfabrik Reinigungsmittel fuer Geschirrspuelautomaten

Also Published As

Publication number Publication date
DK134482A (da) 1982-09-26
ATE11563T1 (de) 1985-02-15
US4517109A (en) 1985-05-14
EP0061600B1 (fr) 1985-01-30
CA1152844A (fr) 1983-08-30
DE3111617A1 (de) 1982-10-07
DE3262089D1 (en) 1985-03-14

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