US3576748A - Free-flowing granular detergent compositions containing nta and soap - Google Patents

Free-flowing granular detergent compositions containing nta and soap Download PDF

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Publication number
US3576748A
US3576748A US812125A US3576748DA US3576748A US 3576748 A US3576748 A US 3576748A US 812125 A US812125 A US 812125A US 3576748D A US3576748D A US 3576748DA US 3576748 A US3576748 A US 3576748A
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United States
Prior art keywords
soap
detergent
slurry
free
nta
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Expired - Lifetime
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US812125A
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English (en)
Inventor
Sigvard Gunnar Peterson
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Lever Brothers Co
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Lever Brothers Co
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Publication date
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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
    • 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
    • C11D1/72—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
    • C11D10/00—Compositions of detergents, not provided for by one single preceding group
    • C11D10/04—Compositions of detergents, not provided for by one single preceding group based on mixtures of surface-active non-soap compounds and soap
    • 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
    • C11D3/04—Water-soluble compounds
    • C11D3/06—Phosphates, including polyphosphates
    • 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
    • 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
    • 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
    • C11D1/14—Sulfonic acids or sulfuric acid esters; Salts thereof derived from aliphatic hydrocarbons or mono-alcohols
    • 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

Definitions

  • the present invention relates to a process for preparing a detergent composition. More particularly, the present invention relates to a process for preparing a detergent composition which comprises an active detergent mixture of a nonionic synthetic detergent, an anionic synthetic detergent and an alkali metal soap, and a builder mixture of an alkali polyphosphate and a water-soluble alkaline salt of nitrilotriacetic acid.
  • Nitrilotriacetic acid in particular the water-soluble alkali salts thereof, hereafter referred to as NTA, is a well-known sequestering agent. It has been proposed to use NTA in combination with an alkalipolyphosphate, in particular sodiumtriphosphate (hereinafter referred to as STP) to provide a builder mixture for detergent compositions.
  • STP sodiumtriphosphate
  • a spray-dried detergent composition containing this NTA/STP builder mixture could be prepared by preparing an aqueous slurry containing the various active detergent ingredients and the NTA/STP mixture together and spray-drying said slurry in any conventional way.
  • the active detergent mixture comprises a mixture of a nonionic synthetic detergent, an anionic synthetic detergent and an alkali metal soap, a so-called controlled sudsing detergent composition. If a slurry containing this active detergent mixture and an NTA/STP mixture is spray-dried in a conventional manner, the spray-dried powder obtained is soft and very hygroscopic, and has poor free-flowing properties. It feels wet and sticky on leaving the spray-tower.
  • the present invention therefore provides a process for the preparation of a granular free-flowing detergent composition containing an active detergent mixture consisting of a nonionic synthetic detergent, an anionic synthetic detergent and an alkali metal soap, and a mixture of NTA and STP in which an aqueous slurry containing the NTA, the STP and the nonionic synthetic detergent, the anionic synthetic detergent, and less than the total amount of the soap required in the final composition, is heat-dried, and the remaining part of the required amount of the soap is then added to the heat-dried granular detergent composition.
  • the granular detergent composition thus obtained has satisfactory free-flowing properties, and the 3,576,748 Patented Apr. 27, 1971 "ice hygroscopicity of the product is considerably reduced. Moreover, the aqueous slurry is more easily heat-dried.
  • the aqueous slurry should contain less than the total amount of soap required in the final product. Reduction of this amount results in better products, and the best products are obtained if the slurry does not contain soap at all. In this case all of the soap is added afterwards to the heat-dried product.
  • the soap can be added in any convenient form for instance as shaped solids.
  • shaped solids is to be understood any suitable solid form obtained by a suitable shaping process. Suitable shaped solid forms are noodles, flakes, ribbons, threads, granules, pellets, small spheres, etc.
  • the soap can contain other ingredients desired in a detergent composition, such as perfumes, germicides, colouring material, fluorescers, enzymes, tarnish inhibitors, corrosion inhibitors, etc.
  • the aqueous slurry can be prepared in any conventional manner by mixing the constituents of the detergent composition with sufficient water in a crutcher.
  • the amount of water (including that present in the various ingredients added to the slurry) should be sufiicient to ensure a thinly viscous, readily pumpable and homogeneous slurry which does not gellify or solidify at higher shear rates, e.g. when the slurry is pumped through a high-pressure pump or a colloid mill.
  • the amount of water should be from 45-55% by weight of the final slurry.
  • the final slurry temperature should in general not be higher than 85 C., and preferably not higher than about 70 C. During the mixing operation the temperature of the slurry may increase when particular ingredients are added, such as e.g. sodium carbonate, and in general the initial temperature of the water should lie therefore between about 50 and 60 C.
  • the heat-drying can be carried out in any conventional manner in a drying apparatus.
  • the slurry is preferably spray-dried, e.g. in a spray-drying tower.
  • the detergent composition of the invention may contain a mixture of NTA and STP in an amount of 20-50% by weight of the final composition.
  • the mixture contains NTA and STP in a molar ratio of 4:1 to 1:4.
  • a preferred molar ratio is 1:1.
  • the detergent composition of the invention contains an active detergent mixture containing a nonionic synthetic detergent, an anionic synthetic detergent and an alkali metal soap.
  • Preferred nonionic synthetic detergents for use in the present process are alkylene oxide containing nonionics. These are condensation products of alkylene oxide with an organic hydrophobic compound. Examples thereof are condensation products of ethylene oxide with alcohols, monoand di-alkylphenols, fatty acid amides, polyalkylene glycols and mixed alkylene oxide adducts. In general, the composition contains from 110% by weight of the final composition of the nonionic synthetic detergent. For medium-sudsing purposes l 6% if preferred, and for lowsudsing 2-l0% if preferred.
  • the anionic synthetic detergents which may be used in the present process are well-known in the detergent art. They can be broadly described as the alkaline salts of the reaction product of a sulphating or suphonating agent with an organic sulphatable or sulphonatable compound. Examples thereof are the alkyl sulphates, alkylether sulphates, alkyl sulphonates, alkylaryl sulphonates, alkylarylether sulphates, acyltaurides, acylisethionates, sulphofatty acids, olefin sulphonates, etc.
  • the composition contains from 2-20% by weight of the final composition of the anionic synthetic detergent.
  • the soaps which are preferably used in the present process are of the normal type of soaps currently used in the detergent art, such as the alkali metal soaps of saturated fatty acids having from 10'-24 carbon atoms in the alkyl chain, e.g. fatty acids derived from palm oil, groundnut oil, hardened tallow, hardened fish oil, etc. Also alkali metal soaps of synthetic fatty acid may be used.
  • the composition contains from 1-10% by Weight of the final composition of soap. For mediumsudsing an amount of 1-5% is preferred, for low-sudsing 5-10% of soap being desirable.
  • the composition may further contain normal detergent additives, such as hydrotropes, lather modifiers, soilsuspending agents, fabric-damage inhibitors, corrosion inhibitors, alkali salts such as sodium carbonates, silicates, sulphates, sequestering agents, and hydrophobes such as paratfins.
  • normal detergent additives such as hydrotropes, lather modifiers, soilsuspending agents, fabric-damage inhibitors, corrosion inhibitors, alkali salts such as sodium carbonates, silicates, sulphates, sequestering agents, and hydrophobes such as paratfins.
  • a bleaching agent such as sodium perborate may be added in an amount of up to 35%. Enzymes may also be added.
  • I-Iygroscopicity moisture uptake (percent increase in weight) at 80% RH. at room temperature (about 22 C.) in an open beaker containing 50 cc. of the powder during 7 days of storage.
  • EXAMPLE 2 Aqueous slurries were prepared at about 50 C. by mixing the constituents of Example 1 with such amounts of soap (hardened tallow 63% f.a.) that on spray-drying powders were obtained with A 8.6, B 7.56, C, 3.38, D 1.6 and E 0% soap. To products B, C, D and E 22% of sodium perborate was added after spray-drying, and to products C, D and E also soap noodles (hardened tallow; 85% soap) in an amount of 4, 5.5 and 6.9% respectively. These products were stored in an open beaker at RH. at room temperature (about 22 C.) for 4 weeks, and the increase in weight (in percent) was determined every week. The results are shown in FIG. 2. From this figure it is clear that reducing the amount of soap in the spray-dried powder provides significantly less hygroscopic powders.
  • compositions of the invention are satisfactory controlled sudsers, and are suitable for use in drum-type washing machines.
  • a process for the preparation of a granular detergent composition with improved free-flowing properties wherein said composition consists essentially of:
  • said process comprising heat drying an aqueous slurry containing all of ingredients (a), (b) and (c) and not more than half of ingredient (d) and, thereafter adding to said heat-dried product the remainder of the sodium soap as shaped solids in the form of noodles, flakes, ribbons, threads, granules, pellets or small spheres.

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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)
  • Arrangements For Transmission Of Measured Signals (AREA)
US812125A 1968-04-03 1969-04-01 Free-flowing granular detergent compositions containing nta and soap Expired - Lifetime US3576748A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
LU55829 1968-04-03

Publications (1)

Publication Number Publication Date
US3576748A true US3576748A (en) 1971-04-27

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ID=19725557

Family Applications (1)

Application Number Title Priority Date Filing Date
US812125A Expired - Lifetime US3576748A (en) 1968-04-03 1969-04-01 Free-flowing granular detergent compositions containing nta and soap

Country Status (13)

Country Link
US (1) US3576748A (xx)
AT (1) AT288573B (xx)
BE (1) BE730882A (xx)
CH (1) CH518358A (xx)
DE (1) DE1916861C3 (xx)
DK (2) DK129805B (xx)
FI (1) FI50137C (xx)
FR (1) FR2005461A1 (xx)
GB (1) GB1259027A (xx)
LU (1) LU55829A1 (xx)
NL (1) NL153600B (xx)
NO (1) NO127199B (xx)
SE (1) SE364984B (xx)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3639289A (en) * 1968-06-18 1972-02-01 Knapsack Ag Process for the manufacture of noncaking blends comprising sodium tripolyphosphate hexahydrate and sodium nitrilo triacetate monohydrate or dihydrate, and their use as detergents, cleansing or rinsing agents
US3945937A (en) * 1974-04-02 1976-03-23 American Cyanamid Company Method for improving the stability of detergent bleach compositions
US4082682A (en) * 1972-04-06 1978-04-04 Colgate-Palmolive Company Detergent composition containing distinctive, colored, non-staining soap particles
US4092261A (en) * 1974-10-10 1978-05-30 Henkel Kommanditgesellschaft Auf Aktien Process for the production of powdery washing and cleansing agent compositions
US4298480A (en) * 1978-12-11 1981-11-03 Colgate Palmolive Co. Detergent softener compositions
US4326971A (en) * 1978-12-11 1982-04-27 Colgate Palmolive Company Detergent softener compositions
US4329237A (en) * 1979-11-21 1982-05-11 Colgate-Palmolive Company Detergent softener compositions
US4411803A (en) * 1980-10-27 1983-10-25 Colgate Palmolive Company Detergent softener compositions
US4416811A (en) * 1979-11-21 1983-11-22 Colgate-Palmolive Company Detergent softener compositions
US4450085A (en) * 1981-05-01 1984-05-22 Colgate Palmolive Company Detergent softener compositions
US4992193A (en) * 1986-10-24 1991-02-12 Lever Brothers Company Division Of Conopco, Inc. Granular detergent composition including soap noodles that contain free fatty acid to improve dissolution
WO2009115379A1 (de) * 2008-03-20 2009-09-24 Henkel Ag & Co. Kgaa Wasch- oder reinigungsmittel mit seife und polyesterbasiertem soil-release-polymer

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT330930B (de) * 1973-04-13 1976-07-26 Henkel & Cie Gmbh Verfahren zur herstellung von festen, schuttfahigen wasch- oder reinigungsmitteln mit einem gehalt an calcium bindenden substanzen
GB1560073A (en) * 1975-10-17 1980-01-30 Unilever Ltd Detergent compositions and the production thereof
US4530781A (en) * 1983-10-12 1985-07-23 S. C. Johnson & Son, Inc. Metastable prespotting composition
IT1236128B (it) * 1989-11-15 1993-01-08 Mira Lanza Spa Detersivo in polvere, ad elevato contenuto di tensioattivi nonionici e di saponi.

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3639289A (en) * 1968-06-18 1972-02-01 Knapsack Ag Process for the manufacture of noncaking blends comprising sodium tripolyphosphate hexahydrate and sodium nitrilo triacetate monohydrate or dihydrate, and their use as detergents, cleansing or rinsing agents
US4082682A (en) * 1972-04-06 1978-04-04 Colgate-Palmolive Company Detergent composition containing distinctive, colored, non-staining soap particles
US3945937A (en) * 1974-04-02 1976-03-23 American Cyanamid Company Method for improving the stability of detergent bleach compositions
US4092261A (en) * 1974-10-10 1978-05-30 Henkel Kommanditgesellschaft Auf Aktien Process for the production of powdery washing and cleansing agent compositions
US4298480A (en) * 1978-12-11 1981-11-03 Colgate Palmolive Co. Detergent softener compositions
US4326971A (en) * 1978-12-11 1982-04-27 Colgate Palmolive Company Detergent softener compositions
US4329237A (en) * 1979-11-21 1982-05-11 Colgate-Palmolive Company Detergent softener compositions
US4416811A (en) * 1979-11-21 1983-11-22 Colgate-Palmolive Company Detergent softener compositions
US4411803A (en) * 1980-10-27 1983-10-25 Colgate Palmolive Company Detergent softener compositions
FR2504938A1 (fr) * 1981-05-01 1982-11-05 Colgate Palmolive Co Compositions a base de detergent et d'agent assouplissant et procede de lavage de tissus les utilisant
US4450085A (en) * 1981-05-01 1984-05-22 Colgate Palmolive Company Detergent softener compositions
US4992193A (en) * 1986-10-24 1991-02-12 Lever Brothers Company Division Of Conopco, Inc. Granular detergent composition including soap noodles that contain free fatty acid to improve dissolution
WO2009115379A1 (de) * 2008-03-20 2009-09-24 Henkel Ag & Co. Kgaa Wasch- oder reinigungsmittel mit seife und polyesterbasiertem soil-release-polymer

Also Published As

Publication number Publication date
NL6905009A (xx) 1969-10-07
DE1916861B2 (de) 1977-08-18
DE1916861C3 (de) 1978-05-11
DK129724A (xx) 1900-01-01
SE364984B (xx) 1974-03-11
DK129805B (da) 1974-11-18
FI50137B (xx) 1975-09-01
GB1259027A (xx) 1972-01-05
AT288573B (de) 1971-03-10
LU55829A1 (xx) 1969-11-13
BE730882A (xx) 1969-10-01
DE1916861A1 (de) 1969-11-06
NO127199B (xx) 1973-05-21
NL153600B (nl) 1977-06-15
FI50137C (fi) 1975-12-10
CH518358A (de) 1972-01-31
FR2005461A1 (xx) 1969-12-12
DK129805C (xx) 1975-05-05

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