EP0264043B1 - Procédé de préparation de produits sous forme moulée contenant un hydroxyde de métal alcalin et éventuellement aussi des agents à chlore actif pour le nettoyage machinal de la vaisselle - Google Patents

Procédé de préparation de produits sous forme moulée contenant un hydroxyde de métal alcalin et éventuellement aussi des agents à chlore actif pour le nettoyage machinal de la vaisselle Download PDF

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Publication number
EP0264043B1
EP0264043B1 EP87114488A EP87114488A EP0264043B1 EP 0264043 B1 EP0264043 B1 EP 0264043B1 EP 87114488 A EP87114488 A EP 87114488A EP 87114488 A EP87114488 A EP 87114488A EP 0264043 B1 EP0264043 B1 EP 0264043B1
Authority
EP
European Patent Office
Prior art keywords
alkali metal
melt
active chlorine
water
triphosphate
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
EP87114488A
Other languages
German (de)
English (en)
Other versions
EP0264043A3 (en
EP0264043A2 (fr
Inventor
Jochen Dr. Jacobs
Theodor Dr. Altenschöpfer
Peter Dr. Jeschke
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.)
Henkel AG and Co KGaA
Original Assignee
Henkel AG and Co KGaA
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 Henkel AG and Co KGaA filed Critical Henkel AG and Co KGaA
Priority to AT87114488T priority Critical patent/ATE73487T1/de
Publication of EP0264043A2 publication Critical patent/EP0264043A2/fr
Publication of EP0264043A3 publication Critical patent/EP0264043A3/de
Application granted granted Critical
Publication of EP0264043B1 publication Critical patent/EP0264043B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
    • C11D17/0047—Detergents in the form of bars or tablets
    • C11D17/0052—Cast detergent compositions
    • 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
    • C11D3/395—Bleaching agents
    • C11D3/3958—Bleaching agents combined with phosphates

Definitions

  • Solid detergents for automatic dishwashing are mainly offered in powder or granular form (agglomerates).
  • the individual particles of these agents have a preferred diameter between 0.01 and 3 mm.
  • a serious disadvantage of this type of solid cleaning agents, especially those used in the field of large-scale commercial use with a content of 10 to 60% by weight of alkali metal hydroxides, is that, due to the hygroscopicity of individual raw materials, small amounts of moisture have a strong tendency to Baked or clumped.
  • a disadvantage is the use of cleaning agents that tend to clump or cake when exposed to moisture, especially in automatic, stocking dosing devices that are used in large numbers in the area of large-scale commercial use of single-tank and multi-tank dishwashers.
  • cleaning agents that tend to clump or cake when exposed to moisture
  • the only remedy is to prevent the entry of moisture into the storage container, but this cannot be guaranteed in a damp kitchen atmosphere or after cleaning the device with water without drying the parts of the storage container and the dosing device.
  • the clumping or caking of alkaline cleaning agents can be avoided, among other things, by producing them in block form from the outset and packing, distributing and using them in a moisture-proof manner.
  • melt-block detergents for automatic dishwashing have already been described, which are mixed together by mixing all alkaline-reacting, preferably hydrate-containing active substances, such as. B. sodium silicates, pentasodium triphosphate, sodium hydroxide and optionally water, if the preferred water of hydration of the compounds mentioned is not sufficient, and then mild heating of the mixture with stirring to 90 to 100 ° C. until a uniformly molten mass was obtained and cast in molds and solidified to form a dense crystal aggregate.
  • active substances such as. B. sodium silicates, pentasodium triphosphate, sodium hydroxide and optionally water
  • EP-PS 3 769 describes detergent containers, in particular for machine dishwashing, which contain solid detergent blocks, made from water and two solid constituents, at least one of which is an alkaline hydratable compound and are only open at one point then the detergent is rinsed out by the water flow in the washing machine.
  • these cleaning agents are to contain active chlorine compounds in addition to alkali hydroxide, which are necessary for the removal of bleachable soiling, such as, for. B. tea, coffee, fruit juices, etc. are considered, these must preferably be introduced as preformed kernels during the solidification of the cleaning agent in the still soft mass.
  • the core should still be coated either with paraffin or with a wax-like mono- and dialkyl ester of polyphosphoric acid.
  • Example 13 shows that a direct addition of the active chlorine-releasing compound to the melt mass leads to a high loss of active chlorine within 24 hours.
  • the investigated chlorine carriers were Ca (OCl) 2, LiOCl and Na dichloroisocyanurate dihydrate. Depending on the chlorine carrier, residual chlorine activities between only 3.5 and 17.4% of the initial value were determined.
  • the invention now relates to a process for the preparation of alkali metal-containing melt-block-shaped, homogeneous and storage-stable agents for the mechanical cleaning of dishes containing alkali silicates and water, preferably as water of crystallization, pentaalkali metal phosphate and optionally a further content of active chlorine-releasing compounds and / or organic complexing agents characterized in that first a melt consisting of alkali silicates, alkali hydroxides and optionally water is generated and this is tempered by cooling or heating to 50-75 ° C, preferably 55-70 ° C, then optionally under careful control at a temperature of incorporates an active chlorine-releasing compound and / or organic complexing agent below 70 ° C., the melt obtained simultaneously with the pentaalkali metal phosphate fraction and, if appropriate, other customary components for such agents in a continuous mixer g ibt, where the additional solid, powder or granular raw materials are distributed in the melt, and the still liquid overall mixture immediately afterwards poured into arbitr
  • a continuous mixer those can be used which are also suitable for the production of suspensions or pastes. Preferred are those which bring about a homogeneous distribution of the pentasodium triphosphate in the melt with short residence times of less than one minute and the narrowest possible residence time spectrum, for example an injection mixer from FMC.
  • the feed and discharge lines of the mixer are heated so that their internal temperatures are 50 to 75 ° C and correspond to those of the melt. At higher temperatures, partial degradation of the active chlorine carrier is to be feared others also favor the phosphate breakdown in the melt after pouring into the molds. Lower temperatures can lead to at least partial crystallization of the melt in the batching tank, the metering units, the pipelines or the mixer and thereby cause technical malfunctions.
  • alkali hydroxide potassium and, for reasons of price, preferably sodium hydroxide are suitable, which are preferably in solid form, ie. H. as flakes, flakes or prills, practically anhydrous or as a monohydrate.
  • aqueous alkali hydroxide solutions can also be used. Only the water content for the overall composition has to be taken into account.
  • the amounts used are advantageously 2 to 70, preferably 5 to 50% by weight, anhydrous, based on the total composition.
  • Alkali silicates in particular are alkali metal silicates, namely water-free, but advantageously in the form of sodium metasilicate. 9 H2O, sodium metasilicate. 6 H2O and sodium metasilicate. 5 H2O used.
  • the amounts used in the particular form are expediently 0 to 60, preferably 0 to 50,% by weight, based on the total composition. But you can also partially or completely replace the alkali metal silicates with water glass solutions, the ratio of Na2O: SiO2 being 1: 1 to 1: 4, preferably 1: 2 to 1: 3.5. Because of the higher silicate content of the water glass, its solutions are expediently used in amounts of 0 to 30, preferably 0 to 15,% by weight, based on the total agent.
  • Suitable organic complexing agents which can be solubility-improving constituents of the melt-block-shaped cleaning agents, are polycarboxylic acids, hydroxycarboxylic acids, aminocarboxylic acids, carboxyalkyl ethers, polyanionic polymers, in particular polymeric carboxylic acids and phosphonic acids. these compounds being used in the form of their water-soluble salts.
  • the amount of organic complexing agents is advantageously 0 to 10, preferably 0 to 5% by weight, based on the total agent.
  • the blocks are then no longer composed homogeneously, so that a dosage according to the recipe is not guaranteed during use (gradual rinsing of the blocks).
  • the weight ratio of the two types of phosphate to one another can vary within wide limits. In the case of highly alkaline formulations, ratios of coarse-grained to fine-grained phosphate of approximately 10: 1 to 2: 1, preferably 6: 1 to 3: 1, have proven successful. In the case of low-alkaline formulations, degrees of phosphate maintenance of more than 90% are already achieved even with fine-grained phosphate. A total of 2 to 50, preferably 5 to 45,% by weight of pentaalkali phosphate is expediently used.
  • the total water content of the melt-block-shaped cleaning agents from dense crystal aggregates is essentially 10 to 40, preferably 15 to 30% by weight. It is preferably introduced by the crystal water content of the alkaline reacting substances, but possibly also via water glass solutions. The calculations of the water content must therefore be based on these compounds.
  • the solidification process of the melts obtained by the process according to the invention takes from a few minutes to about one hour, depending on the size of the mold and the composition of the mass. Depending on their composition, the finished melting blocks are very hard, hard or less hard, but in any case through and by consistently composed and quickly soluble in use.

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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)
  • Detergent Compositions (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)

Claims (3)

  1. Procédé d'obtention de compositions homogènes et stables à la conservation, sous forme de blocs de fusion, contenant des hydroxydes alcalins, pour le lavage à la machine de la vaisselle, renfermant des silicates alcalins et de l'eau, de préférence sous forme d'eau de cristallisation, du triphosphate penta-alcalin ainsi que le cas échéant une teneur supplémentaire en composés libérant du chlore actif et/ou des agents complexants organiques, caractérisé en ce que l'on produit en premier lieu un produit de fusion composé de silicates alcalins, d'hydroxydes alcalins et le cas échéant d'eau, et en ce que l'on tiédit par refroidissement ou par chauffage à 50 - 75° C puis le cas échéant en contrôlant soigneusement, en ce que l'on incorpore à une température inférieure à 70° C, un composé libérant du chlore actif et/ou un agent complexant organique, en ce que l'on ajoute le produit de fusion en même temps à la quantité de triphosphate pentaalcalin et éventuellement d'autres constituants habituels pour des compositions de ce genre dans un mélangeur en continu, dans lequel les matières premières additionnelles solides sous forme de granulé ou de poudre se répartissent dans le produit de fusion, en ce que l'on fait ensuite couler le mélange total encore liquide directement dans des moules de n'importe quelle forme, de préférence souples et en ce qu'on le laisse solidifier dans ceux-ci en blocs.
  2. Procédé selon la revendication 1, caractérisé en ce que l'on met en oeuvre comme triphosphate penta-alcalin, le triphosphate pentasodique à gros grains et finement divisé dans un rapport pondéral de 10 : 1 à 2 : 1, de préférence de 6 : 1 à 2 : 1.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce que l'on met en oeuvre le triphosphate pentasodique le plus anhydre possible et avec une teneur en phase I la plus faible possible.
EP87114488A 1986-10-13 1987-10-05 Procédé de préparation de produits sous forme moulée contenant un hydroxyde de métal alcalin et éventuellement aussi des agents à chlore actif pour le nettoyage machinal de la vaisselle Expired - Lifetime EP0264043B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87114488T ATE73487T1 (de) 1986-10-13 1987-10-05 Verfahren zur herstellung schmelzblockfoermiger, alkalihydroxid- und gegebenenfalls auch aktivchlorhaltiger mittel fuer maschinelle reinigen von geschirr.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3634812 1986-10-13
DE19863634812 DE3634812A1 (de) 1986-10-13 1986-10-13 Verfahren zur herstellung schmelzblockfoermiger, alkalihydroxid- und gegebenenfalls auch aktivchlorhaltiger mittel fuer das maschinelle reinigen von geschirr

Publications (3)

Publication Number Publication Date
EP0264043A2 EP0264043A2 (fr) 1988-04-20
EP0264043A3 EP0264043A3 (en) 1989-02-01
EP0264043B1 true EP0264043B1 (fr) 1992-03-11

Family

ID=6311618

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87114488A Expired - Lifetime EP0264043B1 (fr) 1986-10-13 1987-10-05 Procédé de préparation de produits sous forme moulée contenant un hydroxyde de métal alcalin et éventuellement aussi des agents à chlore actif pour le nettoyage machinal de la vaisselle

Country Status (6)

Country Link
US (1) US5064554A (fr)
EP (1) EP0264043B1 (fr)
AT (1) ATE73487T1 (fr)
DE (2) DE3634812A1 (fr)
ES (1) ES2029467T3 (fr)
GR (1) GR3004644T3 (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE68910701T2 (de) * 1989-03-31 1994-06-01 Ecolab Inc Gegossene detergentiensysteme.
NZ239112A (en) * 1991-01-29 1994-12-22 Ecolab Inc Solid alkaline compositions containing the reaction product in water of alkali metal hydroxide and alkali metal silicate; process of manufacture
US5209864A (en) * 1991-07-03 1993-05-11 Winbro Group, Ltd. Cake-like detergent and method of manufacture
BR9408354A (pt) * 1993-12-30 1997-08-26 Ecolab Inc Composição de limpeza sólida homogénea altamente alcalina e processo para sua produção
US6489278B1 (en) * 1993-12-30 2002-12-03 Ecolab Inc. Combination of a nonionic silicone surfactant and a nonionic surfactant in a solid block detergent
WO1995018214A1 (fr) * 1993-12-30 1995-07-06 Ecolab Inc. Procede de fabrication de compositions de nettoyage, sous forme solide, non caustiques
US6673765B1 (en) 1995-05-15 2004-01-06 Ecolab Inc. Method of making non-caustic solid cleaning compositions
US6387870B1 (en) 1999-03-29 2002-05-14 Ecolab Inc. Solid pot and pan detergent
US6369021B1 (en) 1999-05-07 2002-04-09 Ecolab Inc. Detergent composition and method for removing soil
US6471974B1 (en) 1999-06-29 2002-10-29 S.C. Johnson & Son, Inc. N-chlorosulfamate compositions having enhanced antimicrobial efficacy
JP3832399B2 (ja) * 2001-08-28 2006-10-11 栗田工業株式会社 殺菌殺藻剤組成物及び水系の殺菌殺藻方法
DE102005004761B4 (de) * 2005-02-01 2009-04-02 Witty Chemie Gmbh & Co. Kg Reinigungsmittel zur Grundreinigung von Spülgut in einer Geschirrspülmaschine und Verfahren zur Steuerung der Reinigungszyklen in einer Geschirrspülmaschine
US20060234900A1 (en) * 2005-04-13 2006-10-19 Ecolab Inc. Composition and process for preparing a phosphonate and phosphate-free automatic dishwashing powder
JP6462028B2 (ja) * 2016-03-31 2019-01-30 株式会社Adeka 溶融固形型洗浄剤組成物

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2412819A (en) * 1945-07-21 1946-12-17 Mathieson Alkali Works Inc Detergent briquette
EP0003769B1 (fr) * 1978-02-07 1982-09-29 Economics Laboratory, Inc. Article contenant un détergent façonné et méthode pour sa préparation et son utilisation
US4569780A (en) * 1978-02-07 1986-02-11 Economics Laboratory, Inc. Cast detergent-containing article and method of making and using
US4569781A (en) * 1978-02-07 1986-02-11 Economics Laboratory, Inc. Cast detergent-containing article and method of using
GB2061996B (en) * 1979-09-21 1983-06-22 Jeyes Group Ltd Lavatory cleansing blocks
DE3519354A1 (de) * 1985-05-30 1986-12-04 Henkel KGaA, 4000 Düsseldorf Schmelzblockfoermiges alkalihydroxidfreies mittel fuer das maschinelle reinigen von geschirr und verfahren zu seiner herstellung
DE3519353A1 (de) * 1985-05-30 1986-12-04 Henkel KGaA, 4000 Düsseldorf Schmelzblockfoermige, alkalihydroxidhaltige mittel fuer das maschinelle reinigen von geschirr und verfahren zu ihrer herstellung
DE3519355A1 (de) * 1985-05-30 1986-12-04 Henkel KGaA, 4000 Düsseldorf Schmelzblockfoermige, alkalihydroxid- und aktivchlorhaltige mittel fuer das maschinelle reinigen von geschirr und verfahren zu ihrer herstellung

Also Published As

Publication number Publication date
EP0264043A3 (en) 1989-02-01
ATE73487T1 (de) 1992-03-15
GR3004644T3 (fr) 1993-04-28
US5064554A (en) 1991-11-12
ES2029467T3 (es) 1992-08-16
DE3777318D1 (de) 1992-04-16
EP0264043A2 (fr) 1988-04-20
DE3634812A1 (de) 1988-04-14

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