EP0337330B1 - Procédé pour augmenter la densité des détergents séchés par pulvérisation et contenant peu de phosphate - Google Patents

Procédé pour augmenter la densité des détergents séchés par pulvérisation et contenant peu de phosphate Download PDF

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Publication number
EP0337330B1
EP0337330B1 EP89106222A EP89106222A EP0337330B1 EP 0337330 B1 EP0337330 B1 EP 0337330B1 EP 89106222 A EP89106222 A EP 89106222A EP 89106222 A EP89106222 A EP 89106222A EP 0337330 B1 EP0337330 B1 EP 0337330B1
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EP
European Patent Office
Prior art keywords
weight
powder
mixer
spray
nonionic surfactants
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
EP89106222A
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German (de)
English (en)
Other versions
EP0337330A2 (fr
EP0337330A3 (en
Inventor
Jochen Dr. Jacobs
Ulrich Dr. Jahnke
Dieter Dr. Jung
Rudolf Löffelmann
Wilfried Dr. Adler
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
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Publication date
Application filed by Henkel AG and Co KGaA filed Critical Henkel AG and Co KGaA
Publication of EP0337330A2 publication Critical patent/EP0337330A2/fr
Publication of EP0337330A3 publication Critical patent/EP0337330A3/de
Application granted granted Critical
Publication of EP0337330B1 publication Critical patent/EP0337330B1/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
    • C11D11/00—Special methods for preparing compositions containing mixtures of detergents
    • 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
    • C11D11/00—Special methods for preparing compositions containing mixtures of detergents
    • C11D11/02—Preparation in the form of powder by spray drying
    • 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
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/66—Non-ionic compounds
    • C11D1/83—Mixtures of non-ionic with anionic compounds
    • 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
    • C11D17/06—Powder; Flakes; Free-flowing mixtures; Sheets
    • C11D17/065—High-density particulate 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
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/02—Anionic compounds
    • C11D1/04—Carboxylic acids or salts thereof
    • 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
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/02—Anionic compounds
    • C11D1/12—Sulfonic acids or sulfuric acid esters; Salts thereof
    • C11D1/22—Sulfonic acids or sulfuric acid esters; Salts thereof derived from aromatic compounds
    • 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
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/66—Non-ionic compounds
    • C11D1/72—Ethers of polyoxyalkylene glycols

Definitions

  • the agents can contain graying inhibitors which keep the dirt detached from the fibers suspended in the liquor and thus prevent graying.
  • Cellulose ethers such as carboxymethyl cellulose, methyl cellulose, hydroxyalkyl celluloses and mixed ethers such as methyl hydroxyethyl cellulose are suitable. Methyl hydroxypropyl cellulose and methyl carboxymethyl cellulose. Mixtures of various cellulose ethers are also suitable, in particular mixtures of carboxymethyl cellulose and methyl cellulose or methyl hydroxyethyl cellulose. Their proportion is preferably 0.3 to 3% by weight.
  • the outlet nozzles arranged on the hollow shaft are advantageously extended to such an extent that they protrude into the powder stream. Due to the increased centrifugal forces, this enables compressed air-free conveying and atomization of the nonionic surfactant, which is then distributed and absorbed by the powder stream.
  • the number of feeds is expediently from 1 to 10, with an arrangement in the cylinder wall preferably being arranged laterally in the region of the ascending powder stream. If several feeders are arranged one behind the other, the last should be installed so far in front of the outlet opening that the emerging nonionic surfactant is still homogeneously distributed.
  • a total of 4 feeds (diameter approx. 10 mm) were arranged at a mutual distance of 10 cm in the first third of the mixing section laterally in the area of the rising powder flow, via which the nonionic component (b) was fed into the mixer.
  • the size of the outflow opening at the outlet end of the mixer could be regulated by means of a flap. In the following Examples 1 to 4, this flap was set so that a slight back pressure and thus a uniform filling state formed in the mixer during continuous operation.
  • the rotational speed was approximately 1,500 rpm and the average residence time was 20 to 60 seconds, on average 30 to 40 seconds.
  • the mixer was charged with spray-dried powder, which was transported via a pneumatic conveyor system after leaving the tower discharge has been and had a temperature of about 30 ° C or after an intermediate storage of 20 to 25 ° C.
  • the powders proved to be easy to pour, non-dusting and dissolved quickly when littered in household washing machines, without lumps and without residue.
  • a vibration test that simulated mechanical stress during the transport of the packs, the powder components did not separate.

Landscapes

  • 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)

Claims (10)

  1. Procédé pour augmenter la densité d'un composant de produit de lavage séché par pulvérisation, à teneur réduite en phosphate contenant :
    A) de 4 à 20 % en poids au moins d'un agent tensioactif actif par l'anion,
    B) de 2 à 20 % en poids au moins d'un agent tensioactif non ionique,
    C) de 20 à 50 % en poids au moins d'un adjuvant,
    D) de 3 à 25 % en poids d'alcalins de lavage,
    E) de 0 à 30 % en poids d'autres constituants de produits de lavage accessibles au séchage par pulvérisation à chaud,
    caractérisé en ce que l'on introduit la poudre séchée par pulvérisation, possédant une densité apparente d'au moins 350 g/litre, en continu dans un tambour de mélange cylindrique, disposé horizontalement ou légèrement incliné par rapport à l'horizontale, ayant une paroi intérieure lisse, dans lequel un arbre est rotatif axialement, qui est pourvu d'outils de percussion disposés radialement dont la longueur (calculée à partir de l'axe médian) s'élève de 80 à 98 % du rayon interne du tambour, et en ce que l'on règle la vitesse de rotation de l'axe de telle sorte que pour un temps de séjour moyen de la poudre dans le tambour de 10 à 60 secondes et pour un débit constant de poudre, le nombre de Froude w 2 · r g
    Figure imgb0006
     (w = vitesse angulaire, r = longueur de l'outil à partir de l'axe médian, g = accélération de la pesanteur) se situe entre 50 et 1200 ; tambour dans lequel on introduit au maximum la demi-partie de l'agent tensioactif non ionique, au maximum cependant 5 % en poids (rapporté au produit), dans le produit séché par pulvérisation et que l'on incorpore la quantité restante d'agent tensioactif non ionique sous forme liquide dans le mélangeur.
  2. Procédé selon la revendication 1, caractérisé en ce que la longueur des outils en rotation s'élève de 85 à 96 % du rayon interne du tambour.
  3. Procédé selon l'une des revendications 1 et 2, caractérisé en ce que la densité apparente de la poudre de tour amenée s'élève à au moins 400 g/l.
  4. Procédé selon l'une des revendications 1 et 3, caractérisé en ce que le temps de séjour moyen de la poudre s'élève de 20 à 50 secondes.
  5. Procédé selon l'une des revendications 1 et 4, caractérisé en ce que le nombre de Froude s'élève de 100 à 800.
  6. Procédé selon l'une des revendications 1 et 5, caractérisé en ce qu'une combinaison d'agents tensioactifs non ioniques solubles dans l'eau ayant une valeur HLB de plus de 11 (B1) et d'agents tensioactifs non ioniques, insolubles dans l'eau ou dispersibles dans l'eau ayant une valeur HLB de 11 ou moins (B2) est mis en oeuvre dans le procédé dans lequel elle est co-pulvérisée aussi bien, totalement que partiellement, qu'elle est admise par dose totalement ou partiellement dans le mélangeur et le composant B2 est mélangé complètement au produit déjà séché par pulvérisation dans le mélangeur.
  7. Procédé selon l'une des revendications 1 et 6, caractérisé en ce qu'au maximum 50 % en poids, rapporté à l'agent tensioactif non ionique, en agents tensioactifs non ioniques est introduit par l'intermédiaire de la poudre de pulvérisation de la tour, dans lequel de 0,5 à 6 % en poids et en particulier de 1 à 5 % en poids des agents tensioactifs non ioniques contenus dans le produit sont introduits par l'intermédiaire du mélangeur.
  8. Procédé selon l'une des revendications 1 à 7, caractérisé en ce que la température de la poudre ne dépasse pas 50°C.
  9. Procédé selon l'une des revendications 1 et 8, caractérisé en ce que l'on ajoute par mélange de 0,5 à 3 % en poids de zéolite séchée finement dispersée à la poudre.
  10. Procédé selon l'une des revendications précédentes, caractérisé en ce que l'on traite simultanément plusieurs composants de la poudre.
EP89106222A 1988-04-15 1989-04-08 Procédé pour augmenter la densité des détergents séchés par pulvérisation et contenant peu de phosphate Expired - Lifetime EP0337330B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3812530A DE3812530A1 (de) 1988-04-15 1988-04-15 Verfahren zur erhoehung der dichte spruehgetrockneter, phosphatreduzierter waschmittel
DE3812530 1988-04-15

Publications (3)

Publication Number Publication Date
EP0337330A2 EP0337330A2 (fr) 1989-10-18
EP0337330A3 EP0337330A3 (en) 1990-04-11
EP0337330B1 true EP0337330B1 (fr) 1996-05-15

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP89106222A Expired - Lifetime EP0337330B1 (fr) 1988-04-15 1989-04-08 Procédé pour augmenter la densité des détergents séchés par pulvérisation et contenant peu de phosphate

Country Status (8)

Country Link
US (1) US5149455A (fr)
EP (1) EP0337330B1 (fr)
JP (1) JPH01311200A (fr)
KR (1) KR890016160A (fr)
AT (1) ATE138096T1 (fr)
DE (2) DE3812530A1 (fr)
DK (1) DK182389A (fr)
ES (1) ES2086308T3 (fr)

Cited By (1)

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AU2006334038B2 (en) * 2005-12-28 2011-01-27 Kao Corporation Method for producing detergent particles

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Publication number Priority date Publication date Assignee Title
AU2006334038B2 (en) * 2005-12-28 2011-01-27 Kao Corporation Method for producing detergent particles

Also Published As

Publication number Publication date
EP0337330A2 (fr) 1989-10-18
JPH01311200A (ja) 1989-12-15
ES2086308T3 (es) 1996-07-01
ATE138096T1 (de) 1996-06-15
DE3812530A1 (de) 1989-10-26
KR890016160A (ko) 1989-11-28
EP0337330A3 (en) 1990-04-11
DE58909678D1 (de) 1996-06-20
DK182389D0 (da) 1989-04-14
DK182389A (da) 1989-10-16
US5149455A (en) 1992-09-22

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