EP0595919B1 - Procede de stabilisation de suspensions aqueuses de zeolites - Google Patents

Procede de stabilisation de suspensions aqueuses de zeolites Download PDF

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Publication number
EP0595919B1
EP0595919B1 EP92915813A EP92915813A EP0595919B1 EP 0595919 B1 EP0595919 B1 EP 0595919B1 EP 92915813 A EP92915813 A EP 92915813A EP 92915813 A EP92915813 A EP 92915813A EP 0595919 B1 EP0595919 B1 EP 0595919B1
Authority
EP
European Patent Office
Prior art keywords
alkyl
alcohol
suspensions
carbon atoms
formula
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
EP92915813A
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German (de)
English (en)
Other versions
EP0595919A1 (fr
Inventor
Karl-Heinz Schmid
Andreas Syldath
Ditmar Kischkel
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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Filing date
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Application filed by Henkel AG and Co KGaA filed Critical Henkel AG and Co KGaA
Publication of EP0595919A1 publication Critical patent/EP0595919A1/fr
Application granted granted Critical
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Anticipated expiration legal-status Critical
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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
    • C11D1/00—Detergent compositions based essentially on surface-active compounds; Use of these compounds as a detergent
    • C11D1/66—Non-ionic compounds
    • C11D1/825—Mixtures of compounds all of which are non-ionic
    • C11D1/8255—Mixtures of compounds all of which are non-ionic containing a combination of compounds differently alcoxylised or with differently alkylated chains
    • 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
    • C11D1/825—Mixtures of compounds all of which are non-ionic
    • 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
    • C11D3/1286—Stabilised aqueous aluminosilicate suspensions
    • 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
    • C11D1/662—Carbohydrates or derivatives
    • 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
    • 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
    • C11D1/722—Ethers of polyoxyalkylene glycols having mixed oxyalkylene groups; Polyalkoxylated fatty alcohols or polyalkoxylated alkylaryl alcohols with mixed oxyalkylele groups

Definitions

  • the invention relates to a method for stabilizing aqueous zeolite suspensions by adding alkyl and / or alkenyl glycosides.
  • Zeolites in particular of the zeolite A type, are of particular importance as building blocks of modern detergents and have largely replaced the polyphosphates that have been used for decades. Their advantages lie not only in their high calcium binding capacity, but also in their high ecotoxicological compatibility [Tens.Surf. Det., 24 , 322 (1987)].
  • the zeolites are obtained in the form of aqueous suspensions, which can either be stored as such and placed on the market, or can be subjected to spray drying.
  • Zeolites have an extremely low solubility in water, so that suspensions of these substances are easy sediment. In the most favorable case, this leads to a phase separation, but usually considerable amounts of the solid separate out on the bottom of the vessels during storage, harden and then have to be separated, comminuted and resuspended with great technical effort. In other cases, the viscosity of the suspension increases so much that decanting or pumping over becomes difficult, if not impossible, and in any case is associated with considerable product losses.
  • German patent application DE 33 30 220 A1 proposes adding 0.5 to 5% by weight of a mixture of fatty alcohol ethoxylates and fatty alcohol sulfates or fatty alcohol ether sulfates to the suspensions.
  • German patent application DE 34 08 040 A1 describes a process for stabilizing 65% by weight zeolite A suspensions with the aid of 0.01 to 0.25% by weight xanthan gum and carboxyl- or hydroxyl-containing polymers.
  • zeolite suspensions can also be stabilized at pH 9 to 10 by adding polyglycol ethers, fatty alcohol ether sulfates, fatty acid alkanolamides or fatty acid monoglycerides.
  • PCT application WO-85/01039 describes a process for stabilizing aqueous zeolite A suspensions by adding a water-insoluble surfactant of the alcohol ethoxylate type and an auxiliary from the group of the anionic sulfate surfactants.
  • non-ionic surfactants with a cloud point below 90 ° C. in particular fatty alcohol ethoxylates, can also be used as auxiliaries in addition to polymers, phosphoric acids or esters, sulfonate surfactants and sheet silicates to stabilize solid suspensions.
  • nonionic surfactants such as, for example, adducts of ethylene and / or propylene oxide with C9 to C20 fatty alcohols, together with water-soluble salts, for example sodium carbonate, chloride, silicate or citrate, to stabilize zeolite suspensions is described in Japanese publication JP- A 57/061616 and JP-A 57/061615 known.
  • the literature uses numerous other stabilizers, for example polycarboxylates with molecular weights above 1500, phosphonic acids, phosphoric acid esters, alkylbenzenesulfonates, layered silicates [DE-OS 27 388] , alkylphenol polyglycol ethers [DE 34 01 861 A1] , isotridecyl polyglycol ethers [DE 34 44 311 A1] and adducts of ethylene oxide with oxo alcohols [DE 37 19 042 A1] are known.
  • the object of the invention was therefore to develop an improved method for stabilizing aqueous zeolite suspensions which is free from the disadvantages described.
  • the invention relates to a method for stabilizing aqueous zeolite suspensions by adding Alkyl and / or alkenyl glycosides of the formula (I), R 1 O- (G) x (I) in which R 1 is an alkyl and / or alkenyl radical having 6 to 22 carbon atoms, G is a glycose unit which is derived from a sugar having 5 or 6 carbon atoms, and x is a number between 1 and 10.
  • the use of the alkyl and / or alkenyl glycosides mentioned or their mixtures with one another can reliably stabilize suspensions of zeolites over a wide temperature range, in particular from 10 to 60 ° C.
  • the suspensions have a high storage stability even over a longer period of time, can be conveyed through pipelines and can be easily poured out with only minor product losses.
  • Zeolites are to be understood as meaning, if appropriate, water-containing alkali metal or alkaline earth metal aluminosilicates of the general formula (II) M 2 / z O ⁇ Al 2 O 3 ⁇ x SiO 2 ⁇ y H 2 O (II) where M stands for an alkali or alkaline earth metal of valence z, x for numbers from 1.8 to 12 and y for numbers from 0 to 8 [Chem.iuZt., 20 , 117 (1986)] .
  • the aqueous suspensions can contain the zeolites in amounts of 20 to 60, preferably 25 to 50% by weight.
  • alkyl and / or alkenyl glycosides to be used according to the invention are known substances. Processes for their preparation are based, for example, on glucose or starch, which are reacted with alcohols either directly or via the intermediate stage of the butyl glycosides [US 3,547,828, US 3,839,318, DE-A- 37 23 826] .
  • the alkyl radical R 1 in formula (I) can be derived from primary saturated or monounsaturated alcohols having 6 to 22, preferably 12 to 18, carbon atoms. Typical examples are capronic alcohol, caprylic alcohol, capric alcohol, lauryl alcohol, myristyl alcohol, cetyl alcohol, palmitoleyl alcohol, stearyl alcohol, elaidyl alcohol, oleyl alcohol, petroselinyl alcohol, behenyl alcohol or erucyl alcohol and their technical mixtures.
  • Alkyl or alkenyl glycosides of the formula (I), which are particularly suitable for the stabilization of aqueous zeolite suspensions, can be derived from aldoses or ketoses. Because of the higher reactivity and the technical availability, primarily the glycosides of the reducing saccharides and especially glucose come into consideration. The preferred alkyl and / or alkenyl glycosides are therefore the alkyl and / or alkenyl glucosides.
  • the stabilizers used are alkyl glycosides of the formula (I) in which R 1 is a linear alkyl radical having 12 to 18 carbon atoms, G is a glucose unit and x is a number from 1 to 3 .
  • the introduction of the stabilizers into the suspension is not critical and can, for. B. mechanically by stirring, optionally at elevated temperatures of 50 ° C. There is no chemical reaction.
  • the alkyl and / or alkenyl glycosides can be added to the suspensions in amounts of 0.1 to 5, preferably 1 to 3% by weight, based on the suspension.
  • Stabilizers used - according to the invention example : (30% by weight aqueous paste):
  • Stabilizers used - comparative examples (30% by weight aqueous pastes):
  • the stability of the suspensions was assessed over a period of 1 to 6 days according to the following criteria:
  • the height of the liquid phase above the suspension was determined in mm.
  • Residue in the beaker after decanting Specification in% by weight based on the suspension.

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)
  • Inorganic Chemistry (AREA)
  • Silicates, Zeolites, And Molecular Sieves (AREA)
  • Detergent Compositions (AREA)
  • Emulsifying, Dispersing, Foam-Producing Or Wetting Agents (AREA)

Claims (4)

  1. Procédé pour stabiliser des suspensions aqueuses de zéolithes par addition d'alkyl- et/ou d'alcénylglycosides de formule (I)

            R1O-(G)x     (I)

    dans laquelle R1 désigne un groupe alkyle et/ou alcényle portant 6 à 22 atomes de carbone, G une unité glycose dérivant d'un sucre portant 5 ou 6 atomes de carbone et x un nombre entre 1 et 10.
  2. Procédé selon la revendication 1, caractérisé en ce que l'on ajoute l'alkyl- et/ou alcénylglycoside à des suspensions aqueuses de zéolithe A présentant une concentration en solides de 20 à 60 % en poids.
  3. Procédé selon les revendications 1 et 2, caractérisé en ce que l'on met en oeuvre des alkylglycosides de formule (I) dans laquelle R1 représente un groupe alkyle linéaire portant 12 à 18 atomes de carbone, G une unité glucose et x des nombres allant de 1 à 3.
  4. Procédé selon les revendications 1 à 3, caractérisé en ce que les alkyl- et/ou alcénylglycosides sont ajoutés aux suspensions à des concentrations, rapportées à la suspension, de 0,1 à 0,5 % en poids.
EP92915813A 1991-07-22 1992-07-13 Procede de stabilisation de suspensions aqueuses de zeolites Expired - Lifetime EP0595919B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4124247A DE4124247A1 (de) 1991-07-22 1991-07-22 Verfahren zur stabilisierung von waessrigen zeolith-suspensionen
DE4124247 1991-07-22
PCT/EP1992/001590 WO1993002171A1 (fr) 1991-07-22 1992-07-13 Procede de stabilisation de suspensions aqueuses de zeolites

Publications (2)

Publication Number Publication Date
EP0595919A1 EP0595919A1 (fr) 1994-05-11
EP0595919B1 true EP0595919B1 (fr) 1996-08-21

Family

ID=6436732

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92915813A Expired - Lifetime EP0595919B1 (fr) 1991-07-22 1992-07-13 Procede de stabilisation de suspensions aqueuses de zeolites

Country Status (7)

Country Link
EP (1) EP0595919B1 (fr)
JP (1) JPH07502963A (fr)
AT (1) ATE141640T1 (fr)
DE (2) DE4124247A1 (fr)
DK (1) DK0595919T3 (fr)
ES (1) ES2090669T3 (fr)
WO (1) WO1993002171A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4203789A1 (de) * 1992-02-10 1993-08-12 Henkel Kgaa Verfahren zur stabilisierung von waessrigen zeolith-suspensionen
US5759979A (en) * 1993-04-05 1998-06-02 Henkel Kommanditgesellschaft Auf Aktien Detergent mixtures comprising APG and fatty alcohol polyglycol ether
JP2017141311A (ja) * 2014-05-30 2017-08-17 協和化学工業株式会社 液状安定剤及び液状安定剤を含有する熱可塑性樹脂組成物

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4169075A (en) * 1974-10-10 1979-09-25 Henkel Kommanditgesellschaft Auf Aktien Process for the production of powdery washing agents by spray-drying
GR76286B (fr) * 1981-09-28 1984-08-04 Procter & Gamble
AU3215784A (en) * 1983-08-22 1985-03-29 Aktien Henkel Kommanditgesellschaft Auf Stabilisierte wasrige zeolith-suspension
ES2045012T3 (es) * 1987-06-06 1994-01-16 Degussa Suspension acuosa estable de silicatos insolubles en agua, capacitados para la fijacion de iones de calcio y su utilizacion para la preparacion de agentes de lavado y limpieza.
DE4009533A1 (de) * 1990-03-24 1991-09-26 Henkel Kgaa Schwachschaeumendes nichtionisches tensidgemisch
GB9025248D0 (en) * 1990-11-20 1991-01-02 Unilever Plc Detergent compositions

Also Published As

Publication number Publication date
JPH07502963A (ja) 1995-03-30
DK0595919T3 (da) 1996-12-23
WO1993002171A1 (fr) 1993-02-04
DE4124247A1 (de) 1993-01-28
EP0595919A1 (fr) 1994-05-11
ES2090669T3 (es) 1996-10-16
DE59206964D1 (de) 1996-09-26
ATE141640T1 (de) 1996-09-15

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