CN102066544A - A spray-drying process - Google Patents
A spray-drying process Download PDFInfo
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- CN102066544A CN102066544A CN2009801246576A CN200980124657A CN102066544A CN 102066544 A CN102066544 A CN 102066544A CN 2009801246576 A CN2009801246576 A CN 2009801246576A CN 200980124657 A CN200980124657 A CN 200980124657A CN 102066544 A CN102066544 A CN 102066544A
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- Prior art keywords
- weight
- detersive surfactant
- spray
- anionic detersive
- alkaline slurry
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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 ; Methods for using cleaning compositions
- 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
- C11D11/00—Special methods for preparing compositions containing mixtures of detergents ; Methods for using cleaning compositions
- C11D11/04—Special methods for preparing compositions containing mixtures of detergents ; Methods for using cleaning compositions by chemical means, e.g. by sulfonating in the presence of other compounding ingredients followed by neutralising
Abstract
The present invention relates to a process for preparing a spray-dried powder comprising (i) anionic detersive surfactant; (ii) from 0wt% to 10wt% zeolite builder; (iii) from 0wt% to 10wt% phosphate builder; and (iv) optionally from 0wt% to 15wt% silicate salt; wherein the process comprises the steps of: (a) forming an alkaline slurry in a mixer, the slurry comprising: (v) from 0wt% to 15wt% anionic detersive surfactant; (vi) from 0wt% to 35wt% water; and (b) transferring the alkaline slurry from the mixer through at least one pump to a spray pressure nozzle; (c) contacting an acid anionic detersive surfactant precursor to the alkaline slurry after the mixer and before the spray pressure nozzle to form a mixture; (d) spraying the mixture through the spray pressure nozzle into a spray-drying tower; (e) spray-drying the mixture to form a spray-dried powder; and (f) optionally, contacting an alkalinity source with the alkaline slurry and/or the acid anionic detersive surfactant precursor, and/or the mixture.
Description
Invention field
The present invention relates to spray drying process.
Background of invention
Laundry detergent composition carries out spraying drying to aqueous slurry and makes with the method for the step that forms spray-dired powder by relating to usually, and described aqueous slurry comprises anionic detersive surfactant.Usually, this spraying drying step is the rate-determing step of preparation laundry detergent powder.This is especially true for the low compound preparation that dry carrying capacity increases.Along with the increase of global laundry detergent powder quantity demand, the spray-drying tower of many detergent manufacturers is with maximum productivity or almost maximum productivity running.In order to improve the turnout of their existing spray drying device, detergent manufacturers have to extra spray drying device of investment buying or upgrading spray drying device, and/or prepare their spray-dired powder with processing aid, this has increased the preparation complicacy of spraying drying laundry detergent powder.
The inventor finds, by taking out at least a portion anionic detersive surfactant the aqueous slurry in agitator, and the later phases at spray-drying process adds its acidic precursor (promptly joining in the alkaline slurry), and by controlling the moisture content of mixing tank neutral and alkali slurries carefully, the turnout of spray drying process is significantly improved, and need not the extra spray drying device of investment buying or mix processing aid.
Summary of the invention
The present invention relates to method as definition in the claim 1.
Detailed Description Of The Invention
Spray drying process
Said method comprising the steps of: (a) in agitator, form alkaline slurry; (b) by at least one pump, described alkaline slurry is transferred to the spraying pressurized nozzles from described agitator; (c) after agitator and before the spraying pressurized nozzles, acidic anionic detersive surfactant precursor is contacted to form mixture with described alkaline slurry; (d) described mixture is sprayed in the spray-drying tower by described spraying pressurized nozzles; (e) the described mixture of spraying drying is to form spray-dired powder; (f) randomly, basicity source and described alkaline slurry and/or described acidic anionic detersive surfactant precursor and/or described mixture are contacted.Each operation is described in greater detail in hereinafter.
Step (a)
In step (a), in agitator, form alkaline slurry.Preferred agitator is a screw mixer in the step (a).Usually preferred in 50 ℃ to 90 ℃ scope, the alkaline slurry in the heating stirrer.Can use saturated vapo(u)r to come slurries in the heating stirrer.Heated all before preferably in joining agitator and form the liquid ingredient of described slurries, and preferably in agitator, make slurries remain on high temperature.These temperature are preferably in 50 ℃ to 90 ℃ scopes.
The retention time of slurries in agitator is usually in 20 seconds to 600 seconds scopes.
Agitator in the step (a) has certain power of motor usually, makes its installed power in 50kW to 100kW scope.
Step (b)
In step (b), make alkaline slurry be transferred to the spraying pressurized nozzles from agitator by at least one pump.Usually at first alkaline slurry is transferred in the low-pressure line.Be lower than pipeline and have 4.0 * 10 usually
5Pa to 1.2 * 10
6Pressure in the Pa scope.Usually then alkaline slurry is pumped in the high pressure line.High pressure line has 4.0 * 10 usually
6Pa to 1.2 * 10
7Pressure in the Pa scope.Usually, use high-pressure pump that alkaline slurry is transferred to high pressure line from low-pressure line.High-pressure pump is preferably piston pump.
Usually, during step (b), alkaline slurry is by second agitator.Described second agitator is preferably the slurries crusher.Described second agitator is usually with 1,000rpm to 3, the running of 000rpm speed.This second agitator reduces the granularity of solid matter in the slurries.When step (b) finishes in the slurries granularity of solid matter preferably less than 2.0mm.This has reduced the risk of stopping up the spraying pressurized nozzles.
Step (c)
In step (c), after agitator and before the spraying pressurized nozzles, acidic anionic detersive surfactant precursor is contacted to form mixture with alkaline slurry.Preferably in low-pressure line, acidic anionic tensio-active agent precursor is contacted with alkaline slurry.Yet, can in high pressure line, acidic anionic tensio-active agent precursor be contacted with alkaline slurry.When described acidic anionic detersive surfactant precursor contacted with alkaline slurry, its temperature was usually in 20 ℃ to 50 ℃ scopes.Usually control the ratio of alkaline slurry flow and acidic anionic detersive surfactant precursor flow rate.This control is usually by making acidic anionic detersive surfactant precursor pass through mass flowmeter, and realize that by the mass rate that is installed in the gravity feed device monitoring alkaline slurry on the hold-up vessel alkaline slurry was delivered in the described hold-up vessel usually before being pumped into low-pressure line.The ratio of alkaline slurry flow and acidic anionic detersive surfactant precursor flow rate is usually at 2.5: 1 to 25: 1, and preferred 5: 1, or 8: 1, and preferably to 20: 1, or to 15: 1 scope.
Step (d)
In step (d), described mixture is sprayed in the spray-drying tower by the spraying pressurized nozzles.Usually 4.0 * 10
6Pa to 1.2 * 10
7Pressure in the Pa scope is the described mixture of spraying down.Usually with 1,000kghr
-1To 70,000kghr
-1Mass rate in the scope, the described mixture of spraying.Usually in described method, use a plurality of nozzles, described nozzle preferably with around mode be placed in the different heights place of whole spray-drying tower.Preferably with tower in the mode of the relative adverse current of air-flow settle nozzle.
Step (e)
In step (e), with described mixture spraying drying to form spray-dired powder.Air inlet temperature is usually in 200 ℃ to 350 ℃ scopes.The inlet mouth flow is usually 50,000 to 150,000kgm
-3In the scope.
Optional step (f)
In optional step (f), basicity source and alkaline slurry and/or acidic anionic detersive surfactant precursor and/or described mixture are contacted.The basicity source is joined in the alkaline slurry basically simultaneously with acidic anionic detersive surfactant precursor.Usually basicity source and alkaline slurry and/or acidic anionic detersive surfactant precursor and/or mixture are contacted being higher than; When the basicity source comprised sodium hydroxide, this was especially preferred.
Can described basicity source be contacted with alkaline slurry and/or mixture by the basicity source is injected in the low-pressure line.Alternatively, the basicity source can be injected in the high pressure line.
Usually control alkaline slurry flow and basicity are come the ratio of source flux.This control is usually by making the basicity source realize by mass flowmeter.The control of alkaline slurry mass rate is described in greater detail in above.
Alkaline slurry
Described alkaline slurry comprises usually: (a) anionic detersive surfactant of 0 weight % to 15 weight %; (b) water of 0 weight % to 35 weight %.Described alkaline slurry preferably comprises 0 weight %, or more than the 0 weight %, and preferably to 30 weight %, or to 25 weight %, or to 20 weight %, or to 15 weight %, or even to the water of 10 weight %.Described alkaline slurry can be anhydrous basically.Described alkaline slurry comprises one or more detergent builder compositions usually.Described alkaline slurry preferred package carbonate containing preferably comprises at least 5 weight %, or the carbonate of at least 10 weight %.Described alkaline slurry preferably comprises 0 weight % to 10 weight %, or more than the 0 weight %, and preferably to 8 weight %, or to 6 weight %, or to weight %, or to the anion surfactant of 2 weight %.Described alkaline slurry can even be substantially free of anionic detersive surfactant.Be substantially free of to typically refer to not comprise and have a mind to add.
Described alkaline slurry can comprise polymeric material.Preferred polymeric material is the carboxylate salt polymkeric substance.Described alkaline slurry can comprise at least 1 weight %, or even the polymeric material of at least 2 weight %.
The solid mineral material that exists in the slurries and the weight ratio of solid organic material preferably 10: 1 to 10,000: 1 scope, preferably at least 35: 1.Described alkaline slurry can comprise the solid organic material less than 10 weight %, or less than the solid organic material of 5 weight %.Described alkaline slurry can even be substantially free of solid organic material.With regard to the object of the invention, organicly be meant any hydrocarbon component.
Spray-dired powder
Described spray-dired powder comprises: (i) anionic detersive surfactant; The (ii) zeolite builders of 0 weight % to 10 weight %; The (iii) phosphate builders of 0 weight % to 10 weight %; The (iv) silicate of Ren Xuan 0 weight % to 15 weight %.Described spray-dired powder comprises additional detergent builder composition usually.Described spray-dired powder preferred package carbonate containing.
Described spray-dired powder has certain particle usually and distributes, make average particle size at 300 microns to 600 micrometer ranges, and preferably the spray-dired powder less than 10 weight % has greater than 1,180 microns granularity, and preferably have granularity less than 150 microns less than the spray-dired powder of 10 weight %.
Described spray-dired powder has the tap density in 100g/L to the 700g/L scope usually.Described spray-dired powder has usually less than 5 weight %, preferably less than 4 weight %, or even less than the water content of 3 weight %.Described spray-dired powder is preferably white.
Acidic anionic detersive surfactant precursor
Described acidic anionic detersive surfactant precursor preferably comprises C
8-C
24Alkyl benzene sulphonate (ABS).Yet any acidic anionic detersive surfactant precursor all can be used among the present invention.
Anionic detersive surfactant
Anionic detersive surfactant preferably comprises alkylbenzene sulfonate.Described anionic detersive surfactant preferably comprises the weight at least 50% by described anionic detersive surfactant, and preferably at least 55%, or at least 60%, or at least 65%, or at least 70%, or even at least 75% alkylbenzene sulfonate.Described alkylbenzene sulfonate is preferably straight or branched, replacement or unsubstituted C
8-18Alkylbenzene sulfonate.This is C
8-18Alkylbenzene sulfonate provides the optimum content of good clean-up performance.C
8-18Alkylbenzene sulfonate can be modified alkylbenzene sulfonates (MLAS), as among WO 99/05243, WO99/05242, WO 99/05244, WO 99/05082, WO 99/05084, WO 99/05241, WO 99/07656, WO 00/23549 and the WO 00/23548 in greater detail.Highly preferred C
8-18Alkylbenzene sulfonate is a straight chain C
10-13Alkylbenzene sulfonate.Especially preferred straight chain C
10-13Alkylbenzene sulfonate, it can pass through, and preferably obtains by linear alkylbenzene (LAB) sulfonation with commercially available acquisition; Suitable LAB comprises rudimentary 2-phenyl LAB, as by Sasol with trade(brand)name
Those that provide, or by Petresa with trade(brand)name
Those that provide, other suitable LAB comprises senior 2-phenyl LAB, as by Sasol with trade(brand)name
Those that provide.
Anionic detersive surfactant can preferably comprise other anionic detersive surfactant.The oxyalkylated anionic detersive surfactant of preferred anionic surfactants decontamination surfactivity auxiliary agent right and wrong.Described non-oxyalkylated anionic detersive surfactant can be alkyl-sulphate, alkylphosphonic, alkyl phosphonate, alkyl carboxylate or their any mixture.The group of the following composition of the optional freedom of non-oxyalkylated anion surfactant: the C that has the following formula structure usually
10-C
20The primary alkyl sulphates of side chain, straight chain and random chain (AS):
CH
3(CH
2)
xCH
2-OSO
3 -M
+
Wherein, M is for hydrogen or electroneutral positively charged ion is provided, and preferred cation is sodium and ammonium cation, and wherein x is at least 7, preferably is at least 9 integer; The typical case has the C of following formula
10-C
18Secondary (2,3) alkyl-sulphate:
Wherein, M is for hydrogen or electroneutral positively charged ion is provided, and preferred cation comprises sodium and ammonium cation, and wherein x is at least 7, preferred at least 9 integer, and y is at least 8, preferred at least 9 integer; C
10-C
18The alkyl carboxylate; The alkyl-sulphate of mid-chain branched, as US 6,020, in 303 and US6,060,443 in greater detail; Methyl ester sulfonate (MES); Sulfonated (AOS); And their mixture.
Another kind of preferred anionic surfactants detersive surfactant is the alkoxylate anionic detersive surfactant.There is the alkoxylate anionic detersive surfactant in the spray-dired powder, good greasy dirt clean-up performance is provided, give good bubbling character, and improve the tolerance of described anionic detersive surfactant system hardness.Described anionic detersive surfactant system preference comprises the weight 1% to 50% by described anionic surfactant system, or 5%, or 10%, or 15%, or 20%, and to 45%, or to 40%, or to 35%, or to 30% alkoxylate anionic detersive surfactant.
Preferably, described oxyalkylated anionic detersive surfactant is a straight or branched, replaces or unsubstituted C
12-18Alkyl alkoxylated vitriol, its average degree of alkoxylation that has is 1 to 30, preferred 1 to 10.Preferably, described oxyalkylated anionic detersive surfactant is a straight or branched, replaces or unsubstituted C
12-18Alkyl ethoxylate sulfate, it has 1 to 10 average degree of ethoxylation.Most preferably, described oxyalkylated anionic detersive surfactant is the unsubstituted C of straight chain
12-18Alkyl ethoxylate sulfate, it has 3 to 7 average degree of ethoxylation.
When existing with alkylbenzene sulfonate, the alkoxylate anionic detersive surfactant also can increase the activity of alkylbenzene sulfonate by reduce the possibility that alkylbenzene sulfonate is precipitated out from solution in the presence of free ca is cationic.The weight ratio of alkylbenzene sulfonate and alkoxylate anionic detersive surfactant preferably at 1: 1 to less than 5: 1, or to less than 3: 1, or to less than 1.7: 1, or even less than in 1.5: 1 the scope.This ratio has been given best whiteness and has been kept performance and good hardness tolerance feature and good foaming combination of features.Yet the weight ratio of alkylbenzene sulfonate and alkoxylate anionic detersive surfactant is preferably greater than 5: 1, or greater than 6: 1, or greater than 7: 1, or even greater than 10: 1.This ratio has been given best greasy dirt clean-up performance and good hardness tolerance feature and good foaming combination of features.
Suitable alkoxylate anionic detersive surfactant is: the TexapanLEST that derives from Cognis
TMDerive from the Cosmacol AES of Sasol
TMDerive from the BES151 of Stephan
TMEmpicol ESC70/U
TMAnd their mixture.
Described anionic detersive surfactant preferably comprises the weight 0% to 10% by described anionic detersive surfactant, preferably to 8%, or to 6%, or to 4%, or to 2%, or even to 1% unsaturated anionic detersive surfactant, as sulfonated.Described anionic detersive surfactant preferably is substantially free of undersaturated anionic detersive surfactant such as sulfonated." do not contain " typical case substantially and be meant " not comprising intentional interpolation ".Not bound by theory, it is believed that this content of unsaturated anionic detersive surfactant such as sulfonated, can guarantee that described anionic detersive surfactant is a bleach-compatible.
Described anionic detersive surfactant preferably comprises 0 weight % to 10 weight %, preferably to 8 weight %, or to 6 weight %, or to 4 weight %, or to 2 weight %, or even to the alkyl-sulphate of 1 weight %.Described anionic detersive surfactant does not preferably contain alkyl-sulphate substantially.Bound by theory, it is believed that this content of alkyl-sulphate, can guarantee that described anionic detersive surfactant is anti-hardness.
Zeolite builders
Described spray-dired powder comprises weight 0 weight % to the 10 weight % by described spray-dired powder usually, preferably to 9 weight %, or to 8 weight %, or to 7 weight %, or to 6 weight %, or to 5 weight %, or to 4 weight %, or to 3 weight %, or to 2 weight %, or to 1 weight %, or to zeolite builders less than 1 weight %.Spray-dired powder even can preferably be substantially free of zeolite builders.Being substantially free of zeolite builders typically refers to described spray-dired powder and does not comprise the zeolite builders that have a mind to add.If expect that described spray-dired powder is very easily molten, especially preferably make the amount of water-insoluble resistates (for example, it can be deposited on the fabric face) be minimum, and also be like this when high expectations obtains transparent washing liq.Zeolite builders comprises zeolite A, X zeolite, zeolite P and zeolite MAP.
Phosphate builders
Described spray-dired powder comprises weight 0 weight % to the 10 weight % by described spray-dired powder usually, preferably to 9 weight %, or to 8 weight %, or to 7 weight %, or to 6 weight %, or to 5 weight %, or to 4 weight %, or to 3 weight %, or to 2 weight %, or to 1 weight %, or to phosphate builders less than 1 weight %.Spray-dired powder even can preferably be substantially free of phosphate builders.Being substantially free of phosphate builder typically refers to described spray-dired powder and does not comprise the phosphate builders that have a mind to add.If the expectation said composition has extraordinary environmental protection characteristic, then this is especially preferred.Phosphate builders comprises tripoly phosphate sodium STPP.
Silicate
Described spray-dired powder is optional to comprise 0 weight % to 20 weight %, preferred 1 weight %, or 2 weight %, or 3 weight %, and preferably to 15 weight %, or to 10 weight %, or even to the silicate of 5 weight %.Silicate comprises amorphous silicate and crystalline layered silicate (for example SKS-6).Preferred silicate is water glass.
Carbonate
Described spray-dired powder comprises carbonate usually, comprises the weight 1% to 50% by described spray-dired powder usually, or 5% to 25%, or 10% to 20% carbonate.Preferred carbonate is yellow soda ash and/or sodium bicarbonate.Highly preferred carbonate is yellow soda ash.Described spray-dired powder can preferably comprise the yellow soda ash by the weight 10% to 40% of described spray-dired powder.Yet described spray-dired powder also can preferably comprise the sodium bicarbonate by the weight 2% to 8% of described spray-dired powder.The sodium bicarbonate of this content can provide good basicity, simultaneously the tensio-active agent agglomerative possibility that may take place in tensio-active agent-carbonate system is reduced to minimum.If described spray-dired powder packets contains yellow soda ash and zeolite, then the weight ratio of yellow soda ash and zeolite is preferably at least 15: 1.
High-load carbonate has improved the clean-up performance of composition by the pH that increases washing liq.The basicity of this increase:, can improve bleachability if exist; Increase dirt hydrolysis tendency, this helps them and removes from fabric; And improved the ionization speed of dirt to be cleaned and degree (note, in the washing stage of clothes washing process, the solubleness of ionization dirt is bigger and easilier remove from fabric).In addition, the high carbon acid salts contg has increased the flowability of spray-dired powder.
The basicity source
Described basicity source preferably includes sodium hydroxide.Described basicity source preferably includes carbonate.Described basicity source preferably includes silicate.
The detergent builder composition
Suitable auxiliary component comprises: detersive surfactant such as anionic detersive surfactant, non-ionic detersive surfactant, cationic detersive surfactants, zwitterionic detersive surfactants, amphoteric detersive surfactants; Preferred non-ionic detersive surfactant is that average degree of alkoxylation is 1 to 20, preferred 3 to 10 C
8-18Alkyl alkoxylated alcohol, most preferably average degree of alkoxylation is 3 to 10 C
12-18Alkyl ethoxylated alcohol; The preferred cation detersive surfactant is one-C
6-18Alkyl one hydroxyethyl dimethyl chlorination quaternary ammonium, more preferably one-C
8-10Alkyl one-hydroxyethyl dimethyl chlorination quaternary ammonium, one-C
10-12Alkyl one-hydroxyethyl dimethyl chlorination quaternary ammonium and one-C
10Alkyl one-hydroxyethyl dimethyl chlorination quaternary ammonium; Peroxygen source such as percarbonate and/or perborate, preferred SPC-D, peroxygen source is preferably to the coated composition coating of small part, preferred complete coated composition applies, described coating composition such as carbonate, vitriol, silicate, borosilicate or their mixture comprise their mixing salt; Bleach-activating agent such as tetra acetyl ethylene diamine, phenolsulfonate bleach-activating agent such as nonanoyl phenolsulfonate, caprolactam bleach activators, imide bleach activators such as N-nonanoyl-N-methylacetamide, preformed peracid such as N, the amino peroxidation caproic acid of N-phthaloyl, nonyl acid amides peroxidation hexanodioic acid or dibenzoyl superoxide; Enzyme such as amylase, carbohydrase, cellulase, laccase, lipase, oxydase, peroxidase, proteolytic enzyme, pectate lyase and mannase; Press down foam system as the siloxanes suds suppressor; White dyes; Optical white; Salt weighting agent such as vitriol, preferably sulfuric acid sodium; Fabric softener such as clay, siloxanes and/or quaternary ammonium compound; Flocculation agent such as polyethylene oxide; The multipolymer of dye transfer inhibitor such as polyvinylpyrrolidone, poly 4 vinyl pyridine N-oxide compound and/or vinyl pyrrolidone and vinyl imidazole; The Mierocrystalline cellulose of fabric integrity component such as hydrophobically modified and by the oligomerization product of imidazoles and Epicholorohydrin condensation; The ethyleneimine polymkeric substance of dirt dispersant and dirt antiredeposition auxiliary agent such as oxyalkylated polyamine and ethoxylation; Antiredeposition component such as carboxymethyl cellulose and polyester; Spices; Thionamic acid or its salt; Citric acid or its salt; With dyestuff such as orange dye, blue dyes, green colouring material, purple dye, pink dyestuff or their mixture.
Embodiment
Though illustrated and described specific embodiments of the present invention, it will be apparent to one skilled in the art that and under the situation that does not deviate from essence of the present invention and scope, can make a plurality of other changes and modification.Therefore, claims all such changes and modification of being intended to be included in the scope of the present invention.
Embodiment 1: spray-dired laundry detergent powder and its method of preparation.
The aqueous alkaline serosity combination
| Component | Aqueous slurry (umber) |
| Water glass | 8.5 |
| Acrylate/maleate copolymer | 3.2 |
| Hydroxyl ethane two (methylene phosphonic acid) | 0.6 |
| Yellow soda ash | 8.8 |
| Sodium sulfate | 42.9 |
| Water | 19.7 |
| Miscellaneous as sal epsom and one or more stablizers | 1.7 |
| Aqueous alkaline slurries umber | 85.4 |
Prepare spray-dired laundry detergent powder
In slurry preparation device container (spiral stirrer), preparation has the aqueous alkaline slurries of forming as mentioned above.The water content of above-mentioned slurries is 23.1%.Any composition that above adds with liquid form is heated to 70 ℃, makes the aqueous slurry temperature must not be lower than 70 ℃.6.0 * 10
5Under the Pa pressure saturation steam is injected in the spiral stirrer, so that temperature rises to 90 ℃.Then slush pump is delivered in the low-pressure line and (had 5.0 * 10
5The pressure of Pa).
Respectively with 11.4 parts of C
8-C
24Alkyl benzene sulphonate (ABS) (HLAS) and 3.2 part of 50 w/w % aqueous sodium hydroxide solution are pumped in the low-pressure line.Then described mixture is pumped in the high pressure line via high-pressure pump and (has 8.0 * 10
6The top hole pressure of Pa).Then 8.0 * 10
6Under Pa pressure and 90 ℃+/-2 ℃ temperature, with described mixture by the spraying pressurized nozzles with 1, it is in 300 ℃ the Countercurrent Spray Dryer that the speed of 640kg/h is sprayed to the gas feed temperature.Make the atomizing of described mixture, make slurry dried after the atomizing then to make solid mixture, then with its cooling and screening with remove especially big material (＞1.8mm) to form free-pouring spray-dired powder.Tiny material (＜0.15mm) eluriate with the waste gas in the spray-drying tower, be collected in then in the containment system behind the tower.Described spray-dired powder has the water content of 2.5 weight %, tap density and the certain particle of 510g/L distributes, and makes to have 150 to 710 microns granularity greater than the spray-dired powder of 80 weight %.Provide the composition of this spray-dired powder below.
Spray-dired laundry detergent powder composition
| Component | Account for the weight percent (%w/w) of spray-dired powder |
| Metso | 10.0 |
| C 8-C 24Alkylbenzene sulfonate | 15.1 |
| Acrylate/maleate copolymer | 4.0 |
| Hydroxyl ethane two (methylene phosphonic acid) | 0.7 |
| Yellow soda ash | 11.9 |
| Sodium sulfate | 53.7 |
| Water | 2.5 |
| Miscellaneous as sal epsom and one or more stablizers | 2.1 |
| Total umber | 100.00 |
Granular laundry detergent composition
Be prepared as follows above-mentioned laundry detergent composition: in the standard batch agitator, do and mix all above-mentioned particles (all particles except AE7).The AE7 of liquid form is sprayed on the particle in the standard batch agitator.Alternatively, the AE7 with liquid form is sprayed on the spray-dired powder of embodiment 1.Then all other particles in gained powder and the standard batch agitator are mixed.
Dimension disclosed herein and value are not intended to be understood that strictly to be limited to described exact value.On the contrary, except as otherwise noted, each such dimension is intended to represent with the numerical value of being quoted and centers on the scope that is equal on the function of this numerical value.For example, the dimension that is disclosed as " 40mm " is intended to expression " about 40mm ".
Claims (8)
1. method for preparing spray-dired powder, described powder comprises
(i) anionic detersive surfactant;
The (ii) zeolite builders of 0 weight % to 10 weight %;
The (iii) phosphate builders of 0 weight % to 10 weight %; With
The (iv) silicate of Ren Xuan 0 weight % to 15 weight %;
Wherein said method may further comprise the steps:
(a) form alkaline slurry in agitator, described slurries comprise:
(the v) anionic detersive surfactant of 0 weight % to 15 weight %;
(the vi) water of 0 weight % to 35 weight %; And
(b) make described alkaline slurry be transferred to the spraying pressurized nozzles by at least one pump from described agitator;
(c) after described agitator and before described spraying pressurized nozzles, acidic anionic detersive surfactant precursor is contacted to form mixture with described alkaline slurry;
(d) described mixture is sprayed in the spray-drying tower by described spraying pressurized nozzles;
(e) the described mixture of spraying drying is to form spray-dired powder; And
(f) randomly, basicity source and described alkaline slurry and/or described acidic anionic detersive surfactant precursor and/or described mixture are contacted.
2. the method for claim 1, wherein said alkaline slurry comprises the water of 0 weight % to 25 weight %.
3. the described method of each claim as described above, wherein said alkaline slurry comprises the anionic detersive surfactant of 0 weight % to 5 weight %.
4. the described method of each claim as described above wherein side by side joins the basicity source in the described alkaline slurry with described acidic anionic detersive surfactant precursor basically.
5. the described method of each claim as described above, wherein said acidic anionic detersive surfactant precursor comprises C
8-C
24Alkyl benzene sulphonate (ABS).
6. the described method of each claim as described above, wherein said basicity source comprises sodium hydroxide.
7. the described method of each claim as described above, wherein said basicity source comprises carbonate.
8. the described method of each claim as described above, wherein said basicity source comprises silicate.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP08159025A EP2138565A1 (en) | 2008-06-25 | 2008-06-25 | A spray-drying process |
| EP08159025.9 | 2008-06-25 | ||
| PCT/US2009/048559 WO2009158449A1 (en) | 2008-06-25 | 2009-06-25 | A spray-drying process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102066544A true CN102066544A (en) | 2011-05-18 |
Family
ID=40328756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009801246576A Pending CN102066544A (en) | 2008-06-25 | 2009-06-25 | A spray-drying process |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP2138565A1 (en) |
| JP (1) | JP2011525215A (en) |
| CN (1) | CN102066544A (en) |
| BR (1) | BRPI0914675A2 (en) |
| CA (1) | CA2726023A1 (en) |
| MX (1) | MX2010014505A (en) |
| WO (1) | WO2009158449A1 (en) |
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| EP4299704A1 (en) | 2022-06-27 | 2024-01-03 | The Procter & Gamble Company | A method of laundering and drying fabric |
| EP4299701A1 (en) | 2022-06-27 | 2024-01-03 | The Procter & Gamble Company | A solid free-flowing particulate laundry detergent composition |
| CA3169962A1 (en) | 2022-08-11 | 2023-02-23 | The Procter & Gamble Company | Laundry detergent composition |
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| GB8609044D0 (en) * | 1986-04-14 | 1986-05-21 | Unilever Plc | Detergent powders |
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| AU8124398A (en) | 1997-07-21 | 1999-02-16 | Procter & Gamble Company, The | Process for making alkylbenzenesulfonate surfactants from alcohols and products thereof |
| PH11998001775B1 (en) | 1997-07-21 | 2004-02-11 | Procter & Gamble | Improved alkyl aryl sulfonate surfactants |
| ZA986446B (en) | 1997-07-21 | 1999-01-21 | Procter & Gamble | Alkylbenzenesulfonate surfactants |
| WO1999005082A1 (en) | 1997-07-21 | 1999-02-04 | The Procter & Gamble Company | Improved processes for making alkylbenzenesulfonate surfactants and products thereof |
| HUP0002572A3 (en) | 1997-07-21 | 2001-04-28 | Procter & Gamble | Detergent compositions containing mixtures of crystallinity-disrupted surfactants |
| ATE286867T1 (en) | 1997-08-08 | 2005-01-15 | Procter & Gamble | METHOD FOR PRODUCING SURFACE-ACTIVE COMPOUNDS BY MEANS OF ADSORPTIVE SEPARATION |
| ATE318882T1 (en) | 1998-10-20 | 2006-03-15 | Procter & Gamble | DETERGENT CONTAINING MODIFIED ALKYLBENZENESULPHONATES |
| WO2000023549A1 (en) | 1998-10-20 | 2000-04-27 | The Procter & Gamble Company | Laundry detergents comprising modified alkylbenzene sulfonates |
| AU2003263591A1 (en) * | 2002-09-06 | 2004-03-29 | Kao Corporation | Detergent particles |
| EP1529833A1 (en) * | 2003-11-10 | 2005-05-11 | The Procter & Gamble Company | Detergent particles |
-
2008
- 2008-06-25 EP EP08159025A patent/EP2138565A1/en not_active Ceased
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2009
- 2009-06-25 BR BRPI0914675A patent/BRPI0914675A2/en not_active IP Right Cessation
- 2009-06-25 CA CA2726023A patent/CA2726023A1/en not_active Abandoned
- 2009-06-25 WO PCT/US2009/048559 patent/WO2009158449A1/en active Application Filing
- 2009-06-25 CN CN2009801246576A patent/CN102066544A/en active Pending
- 2009-06-25 MX MX2010014505A patent/MX2010014505A/en unknown
- 2009-06-25 JP JP2011514901A patent/JP2011525215A/en not_active Ceased
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114717029A (en) * | 2021-07-06 | 2022-07-08 | 湖北清合新能源科技有限公司 | Efficient antistatic gasoline additive and preparation method thereof |
| CN114717029B (en) * | 2021-07-06 | 2023-10-20 | 湖北鑫悦兴能源有限公司 | Efficient antistatic gasoline additive and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2011525215A (en) | 2011-09-15 |
| WO2009158449A1 (en) | 2009-12-30 |
| MX2010014505A (en) | 2011-02-22 |
| CA2726023A1 (en) | 2009-12-30 |
| EP2138565A1 (en) | 2009-12-30 |
| BRPI0914675A2 (en) | 2015-10-20 |
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Application publication date: 20110518 |