EP0279039B1 - Adjuvant actif pour agents de lavage - Google Patents

Adjuvant actif pour agents de lavage Download PDF

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Publication number
EP0279039B1
EP0279039B1 EP87117461A EP87117461A EP0279039B1 EP 0279039 B1 EP0279039 B1 EP 0279039B1 EP 87117461 A EP87117461 A EP 87117461A EP 87117461 A EP87117461 A EP 87117461A EP 0279039 B1 EP0279039 B1 EP 0279039B1
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Prior art keywords
water
weight
bis
calcium
zeolite
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Expired - Lifetime
Application number
EP87117461A
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German (de)
English (en)
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EP0279039A1 (fr
Inventor
Manfred Dr. Diehl
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.)
Evonik Operations GmbH
Original Assignee
Degussa GmbH
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Priority to AT87117461T priority Critical patent/ATE59854T1/de
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    • 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
    • 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
    • C11D3/16—Organic compounds
    • C11D3/26—Organic compounds containing nitrogen
    • C11D3/33—Amino carboxylic acids

Definitions

  • Powdered zeolite type A which can be used as a phosphate substitute in detergents, is a lumpy powder which tends to agglomerate due to its small particle size. It is difficult to mix this zeolite powder with the other detergent components to form a homogeneous powder. The fact that the finished mixture tends to segregate again makes it difficult.
  • zeolite granules are added to the already spray-dried detergent components. These zeolite granules are produced by spray drying an aqueous suspension of the zeolite powder with the addition of further detergent components.
  • An aluminum silicate can be used as a component according to the formula in the detergent builder according to the invention.
  • y can be a number from 1.3 to 4.
  • the crystalline component according to the formula can be a type A zeolite.
  • the aluminum silicates according to the formula I can be naturally occurring or else synthetically produced products, only the synthetically produced products being used in the present invention. They can be prepared, for example, by reacting water-soluble silicates with water-soluble aluminates in the presence of water. For this purpose, aqueous solutions of the starting materials can be mixed with one another or a component present in the solid state can be reacted with the other component present as an aqueous solution.
  • the desired aluminum silicates are also obtained by mixing both components in the solid state in the presence of water.
  • Aluminum silicates can also be produced from Al (OH) 2 , A1 2 0 3 or Si0 2 by reaction with alkali silicate or alkali aluminate solutions. The production can also be carried out by other known processes.
  • the invention relates to aluminum silicates which have a three-dimensional space lattice structure.
  • the preferred calcium binding capacity which is approximately in the range from 100 to 200 mg CaO / g AS, usually around 100 to 180 mg CaO / g AS, is found above all in compounds of the composition:
  • This molecular formula comprises two types of different crystal structures (or their non-crystalline precursors), which also differ in their molecular formulas. They are:
  • the crystalline aluminum silicate present in aqueous suspension can be separated from the remaining aqueous solution by filtration and dried. Depending on the drying conditions, the product contains more or less bound water.
  • the aluminum silicates do not need to be dried at all after their preparation in order to prepare the detergent builders according to the invention; rather, an aluminum silicate that is still moist from manufacture can be used, and this is particularly advantageous.
  • the particle size of the individual aluminum silicate particles can be different, for example in the range between 0.1 ⁇ m and 0.1 mm. This information relates to the primary particle size, ie the size of the particles obtained during the precipitation and, if appropriate, the subsequent crystallization. With It is particularly advantageous to use aluminum silicates which consist of at least 80% by weight of particles with a size of 10 to 0.01 ⁇ m, in particular 8 to 0.1 ⁇ m.
  • These aluminum silicates preferably contain no primary or. Secondary particles more with diameters above 45 pm. Secondary particles are particles that are formed by agglomeration of the primary particles into larger structures.
  • the use of the aluminum silicates which are still moist from their production for the production of the detergent builders according to the invention has proven particularly useful since it has been found that the formation of secondary particles is practically completely prevented when these still moist products are used.
  • powdered zeolite of type A with a particularly defined particle spectrum is used as component A.
  • Such zeolite powder can be according to DE-AS 24 47 021, DE-AS 25 17 218, DE-OS 26 52 419, DE-OS 26 51 420, DE-OS 26 51 436, DE-OS 26 51 437, DE-OS 26 51 445 or DE-OS 26 51 485 can be produced. They then have the particle distribution curves given there.
  • a powdery zeolite of type A can be used, which has the particle size distribution described in DE-OS 26 51 485.
  • Addition products of 4 to 40, preferably 4 to 20 moles of ethylene oxide with 1 mole of fatty alcohol, alkylphenol, fatty acid, fatty amine, fatty acid amide or alkanesulfonamide can be used as nonionic surfactants.
  • the addition products of 5-16 mol of ethylene oxide with coconut oil or tallow fatty alcohols, with oleyl alcohol or with secondary alcohols with 8-18, preferably 12-18 C atoms, and with mono- or dialkyl phenols with 6-14 C atoms are particularly important in the alkyl residues.
  • the adduct of 5 moles of ethylene oxide with tallow fatty alcohol is of particular interest.
  • non-or not completely water-soluble polyglycol ethers with 1-4 ethylene glycol ether residues in the molecule are also of interest, in particular if they are used together with water-soluble nonionic or anionic surfactants.
  • the water-soluble adducts of ethylene oxide with polypropylene glycol, alkylene diamine-polypropylene glycol and alkyl polypropylene glycols with 1-10 C atoms in the alkyl chain, in which the polypropylene glycol chain acts as a hydrophobic chain can be used as nonionic surfactants which contain 20-250 ethylene glycol ether groups and 10-100 propylene glycol ether groups.
  • Nonionic surfactants of the amine oxide or sulfoxide type can also be used.
  • nonionic surfactant is a mixture of at least two different fatty alcohol ethoxylates based on isotridecyl alcohol or an aliphatic C i g alcohol and ethylene oxide.
  • This mixture can preferably consist of fatty alcohol ethoxylates with 4.5 to 5.5 EO and fatty alcohol ethoxylates with 6 to 8 EO.
  • a mixture of at least two different alkylphenol ethoxylates of the formula can also be used as the nonionic surfactant be used.
  • R can be an aliphatic radical with 1 to 15, for example -CH 3 , -C2H "propyl, butyl, pentyl, hexyl, heptyl, octyl and nonyl, preferably with 9 carbon atoms such as nonyl.
  • the radical R can be in ortho, meta and / or para position.
  • Mixtures can also be used in which, in addition to p-substituted aryl ring, there is also o-substituted benzene ring. Mixtures are used in which 90% p-substitution and addition 10% there is an ortho substitution.
  • n can mean 2 to 7, preferably 4 to 6, in particular 5 in the case of one alkylphenol ethoxylate used in the mixture and 8 to 15, preferably 8 to 12, in particular 9 or 10 in the other alkylphenol ethoxylate.
  • n can also mean 7 or 9 or 12 in the case of mixtures of the alkylphenolates.
  • alkylphenol ethoxylates and the isotridecyl alcohol ethoxylates can each be used in any mixture, preferably in a ratio of 1: 9 to 9: 1, preferably 2: 3 to 3: 2, in particular 0.9: 1.1 to 1.1: 0.9 will.
  • the proportion of carboxymethyl cellulose and / or methyl cellulose can be 1.0 to 2.5% by weight in a preferred embodiment of the invention.
  • the granular detergent builder according to the invention can be prepared by mixing the individual components with one another, setting a consistency suitable for spray drying by the amount of water and spray-drying the suspension thus obtained by known processes.
  • the granulated detergent builder according to the invention is stable in transportation, easy to redisperse and extremely low in dust.
  • the product according to the invention has an extremely high absorption capacity for water and surfactants.
  • the granular detergent builder according to the invention can be processed into a detergent simply by mixing it with the other granular detergent constituents. The mixture does not separate.
  • a zeolite A filter cake according to DE-OS 26 51 485 is produced.
  • the powdery zeolite of type A obtained in this way has the particle spectrum specified there.
  • the zeolite A filter cake is stirred up with a dissolver and then heated to 45 ° C. in a 50 l vessel.
  • the nonionic surfactant is stirred in at 75-76 rpm with a MIG stirrer 15 ', the temperature of the slurry rising to 50 ° C.
  • surfactants are used as a single component or in mixtures as a stabilizer:
  • the suspension obtained is mixed with the other constituents listed in the tables and then spray-dried (nozzle dryer inlet temperature 180 ° C., exhaust air temperature 75 ° C.).
  • the immersion depth is kept constant by a brass disc (diameter 15 cm, thickness: 1 mm) soldered to the outer wall of the filler pipe.
  • the apparatus is shown in the drawing. According to the figure, the shaking channel is set up on a laboratory table. The rest of the apparatus should be arranged in such a way that the outlet of the shaking channel lies directly above the center of the funnel (3) and its distance from the top edge of the funnel is 5.5 cm.
  • the frequency of the shaking trough should be 50 Hz and the opening gap should be set so that the substance has passed through the shaking trough in 1 minute.
  • the powder falls through a funnel (3) and a filler tube (4) into the inner cylinder of the test apparatus (5) underneath, while the dust outside this vessel collects on the base plate (6) of the outer cylinder (7).
  • any remaining powder in the funnel is transferred into the apparatus by gently tapping the funnel.
  • the dust deposited on the polished base plate is collected in a small bowl with a metal spatula and weighed out.
  • the dust content is given in percent based on the weight.

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

Claims (2)

1. Constituant granulé d'agent de lavage constituè de:
60 à 80% en poids d'un silicate insoluble dans l'eau, pour fixer le calcium, sous forme d'un composé cristallin de synthèse finement pulvérisé, insoluble dans l'eau, contenant de l'eau liée, de formule générale 1
Figure imgb0011
dans laquelle Kat est un cation échangeable avec le calcium, de valence n, x un nombre de 0,7 à 1,5, Me est bore ou aluminium et y est un nombre de 0,8 à 6,
0 à 5 % en poids de sulfate de sodium
0 à 3 % en poids de tensioactif non ionique
0 à 2,5 % en poids de carboxyméthyl cellulose et/ou de méthylcellulose
3 à 10 % en poids d'hydroxyéthaneiminodiacétate de sodium
Complément eau.
2. Utilisation du constituant granulé d'agent de lavage selon la revendication 1, pour préparer des agents de lavage exempts de phosphate.
EP87117461A 1987-01-30 1987-11-26 Adjuvant actif pour agents de lavage Expired - Lifetime EP0279039B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87117461T ATE59854T1 (de) 1987-01-30 1987-11-26 Waschmittelbuilder.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3702761 1987-01-30
DE3702761 1987-01-30
DE3735617 1987-10-21
DE19873735617 DE3735617A1 (de) 1987-01-30 1987-10-21 Waschmittelbuilder

Publications (2)

Publication Number Publication Date
EP0279039A1 EP0279039A1 (fr) 1988-08-24
EP0279039B1 true EP0279039B1 (fr) 1991-01-09

Family

ID=25852032

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87117461A Expired - Lifetime EP0279039B1 (fr) 1987-01-30 1987-11-26 Adjuvant actif pour agents de lavage

Country Status (4)

Country Link
EP (1) EP0279039B1 (fr)
DE (2) DE3735617A1 (fr)
DK (1) DK29688A (fr)
ES (1) ES2020254B3 (fr)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4029607A (en) * 1974-03-29 1977-06-14 The Drackett Company Drain cleaning compositions
DE3504450A1 (de) * 1985-02-09 1986-08-14 Degussa Ag, 6000 Frankfurt Waschmittelbuilder

Also Published As

Publication number Publication date
DE3735617A1 (de) 1988-08-11
DK29688D0 (da) 1988-01-22
DK29688A (da) 1988-07-31
ES2020254B3 (es) 1991-08-01
EP0279039A1 (fr) 1988-08-24
DE3767299D1 (de) 1991-02-14

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