PT94102A -
METHOD FOR PREPARING A GRANULATED ADDITIVE FOR WASHING COMPOSITIONS, FREE OF PHOSPHATE, CONTAINING AN ACTIVE TENSILE-ACTIVE AGENT
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METHOD FOR PREPARING A GRANULATED ADDITIVE FOR WASHING COMPOSITIONS, FREE OF PHOSPHATE, CONTAINING AN ACTIVE TENSILE-ACTIVE AGENT
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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
C11D3/39—Organic or inorganic per-compounds
C11D3/3942—Inorganic per-compounds
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Inorganic Chemistry
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Life Sciences & Earth Sciences
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Engineering & Computer Science
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Chemical Kinetics & Catalysis
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Oil, Petroleum & Natural Gas
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Wood Science & Technology
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Organic Chemistry
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Abstract
A granular, phosphate-free additive for detergents consists of (A) 10 to 70 wt.% of sodium perborate monohydrate, (B) 25 to 80 wt.% of a granular mixture of salts and (C) 5 to 30 wt.% of non-ionic tensides. Component (B) is a spray-dried, absorbent granulate containing 45 to 75 wt.% (calculated on the anhydrous basis) of fine crystalline zeolite, 0 to 30 wt.% of sodium sulphate, 1 to 12 wt.% of salts of (co)polymer carboxylic acids as well as bound water. In addition, (C) may contain traces of a water-soluble soap; the total content of inorganic compounds in (C) is at least 75 wt.%.
Claims (1)
8,5 partes de perborato de sódio monohidratado, 2,24 partes de sulfato de sódio (anidro), 10,0 partes dum zeólito (20 $ de teor de água). 0 zeólito estava sob a forma de pó e correspondia ao produto HAB 40, de acordo com as indicações na patente europeia EP-A 168 102. Ho Exemplo 1, a formulação acima indicada diferencia-se pelo facto de que o tri-polifosfato (7 partes) foi substituído por um zeólito. Após a homogeneização do pó conforme se descreve no referido Exemplo, pulverizaram-se no misturador de pulverização 4 partes de um agente tensio-activo não iónieo (oxoálcool em C^--C15 + 7 10) e 1 parte de água. 0 granulado formado era ligeiramente adesivo e, após a avaliação da eseoabilidade, deu um valor inferior a 65 $, pelo que se dispensou a mistura com o pó da torre de pulverização. i REIVINDICAÇÕES ls. - Processo para a preparação de um aditivo granulado para composições de lavagem isento de fosfato contendo um agente tensioactivo não iónieo, caraeterizado pelo facto de se misturar A) 10 a 70 % em peso de um perborato de sódio, mono-hidrata-do, que tem uma granulometria média compreendida no intervalo entre 0,2 e 1,2 mm;8.5 parts of sodium perborate monohydrate, 2.24 parts of sodium sulfate (anhydrous), 10.0 parts of zeolite (20% water content). The zeolite was in powder form and corresponded to the HAB 40 product, according to the teachings in EP-A 168 102. In Example 1, the above formulation is distinguished by the fact that the tri-polyphosphate (7 parts) was replaced by a zeolite. After homogenisation of the powder as described in said Example, 4 parts of a nonionic surfactant (C15-C15 + oxoaldehyde) and 1 part of water were sprayed into the spray mixer. The granulate formed was slightly adhesive and, after evaluating the suitability, gave a value of less than 65%, whereby the mixture was dispensed with the powder of the spray tower. CLAIMS A process for the preparation of a granular additive for phosphate-free washing compositions containing a nonionic surfactant, characterized in that A) 10 to 70% by weight of a sodium perborate, monohydrate, which has an average particle size in the range of 0.2 to 1.2 mm;Β) 25 a 80 % em peso de uma mistura granular de saia com uma granulometria média compreendida no intervalo entre 0,2 e 1,2 mm, da qual uma quantidade máxima de 75 i> em peso é de natureza inorgânica e é isenta de peróxidos e 45 a 75 $ em peso (em relação à substância anidra do componente (B) de um zeólito sintético, finamente cristalino; 0 a 30 $ em peso de sulfato de sódio e 1 a 12 $> em peso de sais de ácidos earboxílicos homopoliméricos ou copoliméricos; v, 0) 5 a 30 % em peso de agentes tensioaetivos não iónieos, que são ligados aos componentes granulados (A) e (B). 2&* - Processo de acordo com a reivindicação 1, caracterizado pelo facto de a proporção com uma granulometria inferior a <0,05 mm ser menor do que 1 % em peso, de preferência, inferior a 0,1 # em peso, a proporção com uma granulometria inferior a 0,1 mm ser menor do que 2 $> em peso, de preferência 'menor do que 1 $ em peso, a proporção com uma granulometria superior de 2 mm ser menor a 5 # em peso, preferivelmente menor do que 1 $ em peso, e a proporção com uma granulometria superior 1,2 mm ser menor do que 10 $ em peso, de preferência, menor do que 5 $> em peso. 3a. - Processo de acordo com as reivindicações 1 e 2, caracterizado pelo facto de se utilizar 20 a 60 f> em peso, em especial, 30 a 50 $ em peso do componente (A); 35 a 70 $ em peso, em especial, 40 a 60 fo em peso do componente (B); e 7 a 20 % em peso, em especial, 10 a 15 i» em peso do componente (0). 4a. - Processo de acordo eom qualquer das reivindicações 1 a 3, caracterizado pelo facto de o perborato de sódio mono-M-dratado utilizado ter um peso voláraieo a granel compreendido entre 450 e 650 g/litro, de preferência, entre 500 e 600 g/li-· tro. 5â, - Processo de acordo com qualquer das reivindicações 1 a 4, caracterizado pelo faeto de o componente (B), numa proporção de 45 a 75 i* em peso (relativamente à substância anidra), ser formado por um zeólito sintático, de partículas finas e que contém água ligada 0 a 30 $ em peso de sulfato de sódio, 1,5 a 8 fo em peso de ácidos policarboxílioos homopoliméricos ou copolimérieos (expresso como sal de sódio) e 1,0 a 6 # em peso de um sabão solúvel em água derivado de ácidos gordos com 10 a 24 átomos de carbono. 6®. - Processo de acordo com qualquer das reivindicaçães 1 a 3t caracterizado pelo faeto de se pulverizar uma mistura seca e homogénea dos componentes (A) e (B) com um componente líqui-· ;do ou liquefeito por aquecimento (B), com simultânea aeção de :mistura. ! i Lisboa, 21 de Maio de 1990 /o Agente Oficial da Propriedade Industrial jlaa_s^M2 rasra. vr?rr. rcssa rsesΒ) 25 to 80% by weight of a granular skirt mixture having a mean particle size in the range of 0.2 to 1.2 mm, of which a maximum amount of 75 g > by weight is inorganic in nature and is free from peroxides and from 45 to 75% by weight (relative to the anhydrous substance of component (B) of a finely crystalline synthetic zeolite: 0 to 30% by weight of sodium sulfate and 1 to 12% by weight of salts of homopolymeric or copolymeric carboxylic acids; v) 0 to 5% by weight of nonionic surfactants, which are attached to the granular components (A) and (B). Process according to claim 1, characterized in that the proportion with a particle size less than < 0.05 mm is less than 1% by weight, preferably less than 0.1% by weight, the ratio with a particle size less than 0.1 mm is less than 2% by weight, preferably less than 1% by weight, the proportion having a particle size greater than 2 mm is less than 5% by weight, preferably less than 1% by weight, and the proportion having a particle size greater than 1.2 mm is less than 10% by weight, preferably less than 5% by weight. 3a. A process according to claims 1 and 2, characterized in that from 20 to 60 g. by weight, in particular, 30 to 50% by weight of component (A); 35 to 70% by weight, in particular 40 to 60% by weight of component (B); and 7 to 20% by weight, in particular 10 to 15% by weight of the component (0). 4a. 3. A process according to any one of claims 1 to 3 wherein the mono-M-drated sodium perborate used has a bulk volatility of from 450 to 650 g / liter, preferably from 500 to 600 g / lithium. 5. A process according to any one of claims 1 to 4, characterized in that the component (B), in a proportion of 45 to 75% by weight (relative to the anhydrous substance), is formed by a syntactic particle zeolite fine and containing water bound from 0 to 30% by weight of sodium sulfate, 1.5 to 8% by weight of homopolymeric or copolymeric polycarboxylic acids (expressed as sodium salt) and 1.0 to 6% by weight of a soap soluble in water derived from fatty acids having 10 to 24 carbon atoms. 6®. 2. A process according to any one of claims 1 to 3, characterized in that a dry and homogeneous mixture of components (A) and (B) with a liquid or liquefied component by heating (B) is sprayed with simultaneous addition of: mixing. ! Lisbon, May 21, 1990, the Official Industrial Property Agent of the Industrial Property. vr? rr. rssa rses
PT94102A1989-05-221990-05-21
METHOD FOR PREPARING A GRANULATED ADDITIVE FOR WASHING COMPOSITIONS, FREE OF PHOSPHATE, CONTAINING AN ACTIVE TENSILE-ACTIVE AGENT
PT94102A
(en)
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