EP0563631B1 - Cogranulés de silicate de sodium et d'aluminosilicates, procédé pour les fabriquer et utilisation de ceux-ci - Google Patents

Cogranulés de silicate de sodium et d'aluminosilicates, procédé pour les fabriquer et utilisation de ceux-ci Download PDF

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Publication number
EP0563631B1
EP0563631B1 EP93103728A EP93103728A EP0563631B1 EP 0563631 B1 EP0563631 B1 EP 0563631B1 EP 93103728 A EP93103728 A EP 93103728A EP 93103728 A EP93103728 A EP 93103728A EP 0563631 B1 EP0563631 B1 EP 0563631B1
Authority
EP
European Patent Office
Prior art keywords
cogranulates
sodium silicates
aluminosilicates
bulk density
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.)
Expired - Lifetime
Application number
EP93103728A
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German (de)
English (en)
Other versions
EP0563631B2 (fr
EP0563631A1 (fr
Inventor
Alexander Dr. Tapper
Günther Dr. Schimmel
Gerd Dr. Wingefeld
Hans-Peter Dr. Rieck
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.)
Clariant Produkte Deutschland GmbH
Original Assignee
Hoechst AG
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Publication date
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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
    • C11D3/12—Water-insoluble compounds
    • C11D3/124—Silicon containing, e.g. silica, silex, quartz or glass beads
    • C11D3/1246—Silicates, e.g. diatomaceous earth
    • C11D3/1253—Layer silicates, e.g. talcum, kaolin, clay, bentonite, smectite, montmorillonite, hectorite or attapulgite
    • C11D3/1273—Crystalline layered silicates of type NaMeSixO2x+1YH2O
    • 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
    • C11D3/12—Water-insoluble compounds
    • C11D3/124—Silicon containing, e.g. silica, silex, quartz or glass beads
    • C11D3/1246—Silicates, e.g. diatomaceous earth
    • C11D3/128—Aluminium silicates, e.g. zeolites

Definitions

  • the present invention relates to water-disintegrating cogranulates with a high bulk density made of aluminosilicates and crystalline sodium silicates with a layer structure, a process for their preparation and their use.
  • phosphate-based builders in particular alkali metal tripolyphosphates
  • new builder systems which generally consist of a synthetic, crystalline aluminosilicate (for example zeolite A), an alkali source (for example soda) and at least a cobuilder.
  • zeolite A crystalline aluminosilicate
  • alkali source for example soda
  • cobuilder systems which generally consist of a synthetic, crystalline aluminosilicate (for example zeolite A), an alkali source (for example soda) and at least a cobuilder.
  • Nitrilotriacetic acid or its salts, phosphonates or polycarboxylates are used individually or in combination as cobuilders.
  • the synthetic, crystalline aluminosilicate must be used as a very fine powder with an average particle diameter of d 50 ⁇ 10 ⁇ m. If larger agglomerates form during the manufacture of the aluminosilicates, during their processing or in the course of use, the cobuilders mentioned have the task of dividing the aluminosilicates into a suspension of fine primary particles. This is particularly necessary because agglomerates of aluminosilicates - especially zeolite A - have no tendency to disintegrate into the primary particles in water.
  • US Pat. No. 4,737,306 produces finely divided, water-insoluble phyllosilicates with the oxide sum formula MgO. a M 2 O. b Al 2 O 3 . c SiO 2 . n H 2 O known in which M represents sodium and / or lithium and wherein a, b, c and n each have a number in the ranges 0.05 to 0.4; 0 to 0.3; 1.2 to 2.0 and 0.3 to 3.0 mean.
  • These layered silicates which are suitable as detergent raw material in detergents and cleaning agents, are produced by mixing water-soluble sodium silicate with oxides, hydroxides or water-soluble salts of magnesium, aluminum and lithium in aqueous solution or slurry at 150 to 250 ° C. for 1 to 20 hours implemented hydrothermally under autogenous pressure.
  • a disadvantage of the known layered silicates containing magnesium and aluminum is that their water-softening effect is low. Therefore, their amount must be set high in the formulation, which is because of their insolubility in water, the amount of sludge in the sewage treatment plants increased considerably. After all, they cannot be an alkali supplier in a builder system.
  • yH 2 O are used in which M represents an alkali or alkaline earth metal, n indicates the valence of the cation, x ⁇ 2 and y has a value between 0 and 8, and where the sodium silicates have a SiO 2 / Na 2 O ratio of ( 1.8 to 4.2): 1.
  • a process for the preparation of the cogranulates can be characterized in that the aluminosilicates and sodium silicates are mixed together in powder form; that the mixture is fed to a zone in which it is between two rollers rotating in opposite directions to one another is compacted into a solid under pressure; that you crush the solid; and that one finally separates the desired grain sizes from oversize and undersize.
  • the cogranulates according to the invention can be used in detergents and cleaning agents, for example as a builder.
  • the crystalline sodium silicates with a layer structure contained in the cogranulates according to the invention are slowly water-soluble, as a result of which the sewage treatment plants are relieved of sludge.
  • the component soda can optionally be completely omitted in the detergent or cleaning agent formulation, since the crystalline sodium silicates are an alkali supplier.
  • the water-softening effect of the crystalline sodium silicates contained in the cogranules according to the invention is very pronounced at approx. 75 mg Ca / g (measured in water at 30 ° dH at 20 ° C and pH 10.5).
  • Example 3 was repeated with the change that 27 kg of zeolite A and 3 kg of Na 2 Si 2 O 5 with a layer structure ( ⁇ modification) were premixed in the EIRICH mixer: d 50 [ ⁇ m], after 1 min d 50 [ ⁇ m), after 4 min KBV [mgCaCO 3 / g] Bulk density [g / l] 36.8 30.3 181.9 720

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)
  • Crystallography & Structural Chemistry (AREA)
  • Silicates, Zeolites, And Molecular Sieves (AREA)
  • Detergent Compositions (AREA)

Claims (7)

  1. Granulés mélangés à haute densité apparente, se désagrégeant facilement dans l'eau, qui consistent en aluminosilicates et silicates de sodium cristallins à structure lamellaire, les aluminosilicates répondant à la formule générale

            M2/n . Al2O3 . xSiO2 . yH2O

    dans laquelle M représente un métal alcalin ou alcalino-terreux, n est la balance du cation, x ≥ 2 et y est un nombre allant de 0 à 8, et les silicates de sodium présentent un rapport SiO2/Na2O de 1,8 à 4,2 : 1.
  2. Granulés mélangés selon la revendication 1, caractérisés en ce qu'ils contiennent au moins 3 % en poids de silicates de sodium.
  3. Granulés mélangés selon la revendication 1 ou 2, caractérisés en ce que l'aluminosilicate qu'ils contiennent est la zéolithe A.
  4. Granulés mélangés selon au moins l'une des revendications 1 à 3, caractérisés en ce que leur densité apparente est d'au moins 700 g/l.
  5. Granulés mélangés selon au moins une des revendications 1 à 4, caractérisés en ce que les silicates de sodium présentent un rapport SiO2/Na2O de 1,9 à 2,1 : 1.
  6. Procédé de préparation des granulés mélangés selon au moins une des revendications 1 à 5, caractérisé en ce que l'on mélange les aluminosilicates et les silicates de sodium entre eux, à l'état de poudres, on envoie le mélange dans une zone dans laquelle il est comprimé en un corps solide entre deux cylindres tournant en sens contraires, on broie ce corps solide et finalement on sépare les grains aux dimensions voulues des grains aux dimensions supérieures et inférieures.
  7. Utilisation des granulés mélangés selon au moins une des revendications 1 à 5 dans des produits de lavage et de nettoyage.
EP93103728A 1992-03-28 1993-03-09 Cogranulés de silicate de sodium et d'aluminosilicates, procédé pour les fabriquer et utilisation de ceux-ci Expired - Lifetime EP0563631B2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4210253 1992-03-28
DE4210253A DE4210253A1 (de) 1992-03-28 1992-03-28 Aus Alumosilicaten und Natriumsilicaten bestehende Cogranulate, ein Verfahren zu ihrer Herstellung und ihre Verwendung

Publications (3)

Publication Number Publication Date
EP0563631A1 EP0563631A1 (fr) 1993-10-06
EP0563631B1 true EP0563631B1 (fr) 1997-07-30
EP0563631B2 EP0563631B2 (fr) 2001-09-05

Family

ID=6455338

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93103728A Expired - Lifetime EP0563631B2 (fr) 1992-03-28 1993-03-09 Cogranulés de silicate de sodium et d'aluminosilicates, procédé pour les fabriquer et utilisation de ceux-ci

Country Status (4)

Country Link
EP (1) EP0563631B2 (fr)
JP (1) JP3237946B2 (fr)
DE (2) DE4210253A1 (fr)
ES (1) ES2107569T5 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19525197A1 (de) * 1995-07-11 1997-01-16 Hoechst Ag Granularer Waschmittelbuilder
TW370561B (en) * 1996-03-15 1999-09-21 Kao Corp High-density granular detergent composition for clothes washing
DE19756696A1 (de) 1997-12-19 1999-07-01 Clariant Gmbh Schichtsilikathaltige Wasch- und Reinigungsmittelkomponente

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3526405A1 (de) * 1985-07-24 1987-02-05 Henkel Kgaa Schichtsilikate mit beschraenktem quellvermoegen, verfahren zu ihrer herstellung und ihre verwendung in wasch- und reinigungsmitteln
DE3627773A1 (de) * 1986-08-16 1988-02-18 Hoechst Ag Phosphatfreies geschirrspuelmittel
DE3920704A1 (de) * 1989-06-24 1991-01-03 Hoechst Ag Builder fuer textilwaschmittel
DE3942066A1 (de) * 1989-12-20 1991-06-27 Henkel Kgaa Verfahren zur herstellung eines granularen, avivierend wirkenden waschmitteladditivs
GB9008462D0 (en) * 1990-04-12 1990-06-13 Ecc Int Ltd Granules for detergent compositions

Also Published As

Publication number Publication date
EP0563631B2 (fr) 2001-09-05
DE59306989D1 (de) 1997-09-04
JPH0641585A (ja) 1994-02-15
DE4210253A1 (de) 1993-09-30
JP3237946B2 (ja) 2001-12-10
ES2107569T3 (es) 1997-12-01
ES2107569T5 (es) 2001-12-16
EP0563631A1 (fr) 1993-10-06

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