CN101670251B - Method for preparing spherical anion surfactant - Google Patents
Method for preparing spherical anion surfactant Download PDFInfo
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- CN101670251B CN101670251B CN2009100994815A CN200910099481A CN101670251B CN 101670251 B CN101670251 B CN 101670251B CN 2009100994815 A CN2009100994815 A CN 2009100994815A CN 200910099481 A CN200910099481 A CN 200910099481A CN 101670251 B CN101670251 B CN 101670251B
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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
- C11D10/00—Compositions of detergents, not provided for by one single preceding group
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
- B01J2/20—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by expressing the material, e.g. through sieves and fragmenting the extruded length
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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
- C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
- C11D17/06—Powder; Flakes; Free-flowing mixtures; Sheets
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- Life Sciences & Earth Sciences (AREA)
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- Detergent Compositions (AREA)
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Abstract
The invention provides a method for preparing a spherical anion surfactant with little pollution, low forming temperature, short time and good physicochemical property. The method comprises the steps of adopting a granulating process of extruding and rolling to mix anion surfactant main material and auxiliary granulating material, conveying the mixture into an extruder consisting of a screw feeder, an extruding cylinder and a mesh plate, and processing the mixture to prepare round bar-shaped materials with different lengths; conveying the round bar-shaped materials into a rolling granulator; cutting the round bar-shaped materials into the short cylindrical material grains with consistent lengths by breaking teeth on a rotating centrifugal rotary table of the rolling granulator, subsequently kneading all materials into spherical grains under the cooperation of the centrifugal rotary table, the grains, the granulator walls and the gas among the granulator walls, subsequently drying and cooling the spherical grains to obtain the spherical anion surfactant with the solid content of 95-99.5% by weight percentage. The method is applicable to the production of surfactant.
Description
Technical field
The present invention relates to a kind of manufacturing approach of spherical anion surfactant product.This product can be used for civilian, industrial cleaning agent, in the products such as building materials blowing agent.
Background technology
Anion surfactant except with finite concentration (contain～35% or～70% active matter) the liquid form supply of material, adopt the solid forms supplies of material such as powder (tiny irregular particle) shape, particle (big slightly irregular particle) shape, sheet or pin (circle bar) shape in addition.In the past, solid forms anion surfactant manufacturing approach had:
Adopting the low concentration slurry of water content 60～70% (weight) is raw material, produces through the method for high tower spray drying.As, Japan Patent: the spy opens clear 55-69698, the spy opens clear 53-39037, Chinese patent: the disclosed manufacturing approach of ZL00131365.7; Or adopt the high concentration slurry that contains amount of solid 60～80% (weight), produce with spray-dired mode.Like Japan Patent: the spy opens the disclosed mode of clear 54-106428.What said method made is powder (tiny irregular particle) shape product, and particle diameter is little and irregular, and apparent density is low, and the easy conglomeration of material in production and the use causes the dissolving difficulty, also can produce amounts of dust simultaneously to fly upward health risk and contaminated environment.
In fluid unit, adopt to spray the high concentration slurry that contains amount of solid 60～80% (weight), make granular anion surfactant with mist projection granulating, the attached polymer molding and the mode that successively applies.As, Chinese patent: ZL 200510048907.6 disclosed manufacturing approaches.Also have, European patent 6140301 discloses a kind of use liquid-containing binder and powder is sprayed simultaneously, agglomerates into the method for detergent granules.What produce according to said method is a kind of almost spherical, the granular anionic surfactant of greater particle size.But all exist particle diameter wayward, granular size is irregular, and particle diameter distributes wide, the low problems such as efflorescence, the low influence of particle density dissolving that are easy to of granule strength.
Japanese patent laid-open 2-222498 discloses the high concentration slurry of a kind of usefulness moisture 20%～35% (weight), through the technology of vacuum film continuous drying.U.S. Pat 5723433 discloses with turbulent flow tube drier (TTD) carries out two phase turbulent heat transfers earlier, carry out the mode that vacuum flashing takes anion surfactants such as drying fatty acid methyl ester sulfonate again, but this method often makes line clogging, and influence is produced.Key is that said method does not solve the product granulating technique.
Japanese patent laid-open 5-331496 discloses a kind of; Cylinder-like shell being under the vacuum environment is inner; The input high density detergent is used paste raw materials, utilizes the head of rotatable board-like blade on inwall, to form the high viscosity film, simultaneously; Make its rapid draing, obtain the method for the dry thing of a kind of sheet.What this method was produced is the dry thing of sheet, mobile poor, simultaneously because the risk that high temperature also exists raw material to decompose.
U.S. Pat-A5646107 and Japan Patent JP-A2002-508783 disclose a kind of flash distillation dryer of using, on one side dry process for granulating on one side.This method granulation pressure is high, and baking temperature is also high, should not be used to produce the anion surfactant of thermal sensitivity, also has efflorescence again, the particle diameter problem such as wide that distributes.
Patent WO 2004/111166 discloses a kind of using earlier with slurry film-making or granulation, again through pulverizing the method that average grain diameter is the powder of 100～150 μ m of processing.
WO-A95/01959 discloses a kind of manufacturing approach of powder particle alkyl sulfate.
In addition, also has a kind of pin (circle bar) shape alkyl sulfate manufacturing technology at present at home and abroad.It is to be raw material with Powdered alkyl sulfate,,, in screw extruder, extrudes with higher pressure as adhesive with water, and the cutting knife that is rotated then cuts into the short circle bar of length basically identical, produces product through after the follow-up drying again.The method needs higher extrusion pressure, and caloric value Da Yi produces high temperature, has the risk of product decomposes.The product flowability of producing simultaneously is bad, and apparent density is high, is easy to efflorescence, and dissolving is difficulty relatively.
Summary of the invention
The spherical anion surfactant that the present invention will solve that existing anion surfactant production method can not produce that particle diameter is easy to control, even particle size, grain density and intensity suit; Cause difficulty of anion surfactant dissolving; Be prone to problem of environment pollution caused when producing with use; And solve that existing production method granulation pressure is high, baking temperature is high and be not suitable for making the problem of thermal sensitivity anion surfactant; And there is the problem of thermal decomposition risk in existing living main method because of caloric value makes product greatly; The manufacturing approach of a kind of spherical anion surfactant of the present invention is provided for this reason, and this method can realize not having dust formation in product manufacturing and use overall process, has eliminated pollution and has improved working condition; The product spheroidal particle intensity that this method is made is suitable, dissolves easily and is difficult for efflorescence; This method molding time is short, temperature is low, has eliminated the decomposition risk of heat sensitive material.
For addressing the above problem, its special character of technical scheme that the present invention adopts is: adopt extrude, round as a ball prilling; Be specially; With the anion surfactant major ingredient with after the granulation auxiliary material mixes; Send into have the screw rod feed appliance, in the extruder that recipient and mesh plate are formed, under the co-extruded of screw rod feed appliance and recipient, material forms round strip-shaped materials different in size through mesh plate; Said round strip-shaped materials is sent into round as a ball comminutor; The circle strip-shaped materials is cut into the consistent short cylindrical shape material particles of length by the disrumpent feelings tooth on the centrifugal turntable of round as a ball comminutor rotation earlier; Then under the gas acting in conjunction between centrifugal turntable, material particles, comminutor barrel, comminutor barrel, all material particles are crumpled into the spheroidal particle; A said spheroidal material obtains the spherical anion surfactant of solids content 95～99.5% (weight) through dry, cooling.
Said anion surfactant major ingredient can be one or more the mixture in aliphatic alcohol sulfate, α-Xi Jihuangsuanyan, alkylbenzenesulfonate, fatty alcohol ether sulphate, the MES.
The carbon number of the alkyl or alkenyl in the said anion surfactant major ingredient is 8～24.In the said major ingredient, this carbon number is preferably 12～14 for aliphatic alcohol sulfate; α-Xi Jihuangsuanyan be preferably 14～18; Alkylbenzenesulfonate be preferably 10～14, fatty alcohol ether sulphate be preferably 12～14, MES be preferably 16～18.Said salt can be alkali metal salt, alkali salt, ammonium salt, alkanolamine.
Said granulation auxiliary material can be one or more the mixture in paratoluenesulfonic acid sodium salt, sodium sulphate, sodium sulfite, sodium carbonate, sodium acid carbonate, citric acid, natrium citricum (potassium), sodium phosphate, dibastic sodium phosphate, sodium dihydrogen phosphate, sodium acetate (potassium), sodium chloride, hydroxypropyl methylcellulose, methylcellulose, sodium carboxymethylcellulose, starch slurry, gelatin solution, gumwater, PVP, water, ethanol, propyl alcohol, isopropyl alcohol, higher aliphatic, the polyethylene glycol.
Surfactant major ingredient moisture content before the granulation of the present invention is preferably 1.5～25%, is preferably 3～20%, and more preferably 5～15%.
The solid total content of mixture that the present invention gets into anion surfactant major ingredient and the granulation auxiliary material of extruder is 85%～97%.
Anionic surfactant spherical particle size of
preferably
The present invention can be after moulding the spherical anion surfactant appearance, coat the uniform coatings of a layer thickness of 0～25% (weight) again.
The screw rod feed appliance of extruder according to the invention by single, two branch or more the racemosus screw rod form.
The screw speed of the screw rod feed appliance of said extruder is 10～150rpm, preferably at 25～100rpm.
On the mesh plate of said extruder; Evenly be covered with the circular hole of diameter, the circular hole that is preferably
for
.
The mesh plate of extruder according to the invention is to be coated on the end face of recipient by axial distribution, or is coated on the outer cylinder of recipient with radial distribution; The mesh plate of said axial distribution is flat board or semi-round ball shape, and radially-arranged mesh plate is cylindrical shape, semi-cylindrical shaped or circular arc tubular.
Mesh plate on the said extruder is perhaps being put together by polylith of monolithic.
The rotating speed of centrifugal turntable is 25～3000r/min in the round as a ball comminutor according to the invention, is preferably between 50～1500r/min.
The extrusion temperature of said extruder is 10～50 ℃, is preferably 20～40 ℃.
The present invention so in the overall process of surfactant manufacturing and use, can realize not having dust formation, has improved working condition owing to adopt extruder and round as a ball comminutor manufacturing spherical anion surfactant greatly; It is high that the present invention also has the finished product rate, and spheroidal particle intensity is suitable, is difficult for the characteristics of efflorescence; Because the present invention extrudes with round as a ball step and need not high-temperature process, and type speed is fast, so eliminated the decomposition risk of surfactant heat sensitive material; The present invention accomplishes that easily the product sphere diameter is consistent and size is optional; Product proper sphere degree of the present invention is high, and smooth surface is difficult for putting up a bridge and caking, and is mobile fabulous; The present invention is owing to can realize the consistent particle diameter and the apparent density of optimization, and the product dissolubility is superior to existing other similar solid product.In addition, the present invention can also carry out Cotton seeds to product, can not only realize the specific purposes of slowly-releasing, can also further improve anti-caking capacity, performances such as dissolubility.
Anion surfactant major ingredient before the granulation of the present invention can adopt the direct anion surfactant major ingredient with super-active thing content (active matter content 60%～80%) from the sulfonation production device; Also can be that aforementioned material is again through after drying reaches the granulation desired moisture content in advance; It can also be siccative.Tail over the particle that gets off when in addition, also allow adding screening behind a small amount of granulating and drying.Employing comes granulation from the anion surfactant major ingredient with super-active thing content (active matter content 60%～80%) of sulfonation production device, and its energy-saving and cost-reducing advantage is self-evident.
The present invention does not have specific (special) requirements to the pre-dry form of anion surfactant major ingredient, can be forms such as spray-drying, fluidized bed prilling drying, the dehumidifying of turbulent flow heating flash evaporation.
The used granulation supplementary product consumption of the present invention is 0.5～30% (weight) of granulating raw material.
The present invention mixes used machinery to the anion surfactant major ingredient with the granulation auxiliary material, does not have particular determination, and spiral, rake formula etc. all can.
The used extruder main function components of the present invention is screw rod feed appliance, recipient and mesh plate.Wherein:
The screw rod feed appliance by single, two branch or more the racemosus screw rod form.Commonly used is the extruder of single screw rod and twin-screw.The screw rod feed appliance is by motor-driven, its rotating speed adjustable, and rotating speed is between 10～150rpm; Preferably between 25～100rpm.The method of speed governing can be mechanical speed governors forms such as gear, belt, worm and gear, more preferably adopts the form of variable-frequency motor speed governing, so not only can realize stepless speed regulation easily, all right energy efficient;
2. the screw rod feed appliance is installed in the recipient, and mesh plate then is to be contained on the end face of an end of recipient, or is coated on the outer cylinder of recipient.Be contained in the mesh plate on the recipient end face, employing be plane or hemisphere face form; And the mesh plate that is contained on the recipient outer cylinder is monolithic or polylith, is shaped as cylindrical shape, semi-cylindrical shaped, or circular arc.Uniformly distributed on the net orifice diameter
preferably
of the hole;
3. in order to regulate extrusion temperature, on the recipient chuck can also be housed,, reach the purpose of regulating extrusion temperature through flowing through the medium of chuck.
The used comminutor main function components of the present invention is granulation cylindrical shell and centrifugal turntable.The granulation cylindrical shell is that a cylinder and opening make progress, and there is cover at the open upper end place; Centrifugal turntable is installed in the bottom of granulation cylindrical shell, and its upper surface has been covered with disrumpent feelings tooth.Centrifugal turntable is by motor-driven, its rotating speed adjustable, and rotating speed can be preferably between 50～1500r/min between 25～3000r/min according to the different-diameter of centrifugal turntable.The method of speed governing can be mechanical speed governors forms such as gear, belt, worm and gear, more preferably adopts the form of variable-frequency motor speed governing, so not only can realize stepless speed regulation easily, can also energy efficient.In order to regulate prilling temperature, on the granulating cylinder chuck can also be housed, through flowing through the medium of chuck, reach the purpose of regulating prilling temperature.
The present invention need further carry out drying, cooling and setting in comminutor, accomplishing the globular material after the granulation.Here dried forms is not had specific (special) requirements, can use like form of device such as fluidized drying, vacuum drying, belt dryings.
The present invention is dry to above-mentioned completion, the siccative after cooling and the setting, can sieve, to remove the particle that minute quantity (≤5% weight) influences outward appearance again.Product after the screening can get into feed bin and pack.The particle that screening is come out is sneaked into reuse in the granulating raw material.
The spherical anion surfactant that the present invention makes; Its particle diameter can be selected arbitrarily in
is preferably the scope of
as required.
The bulk density of product spherical anion surfactant of the present invention is in 300～800g/l scope, and the apparent density of particle is in 600～1600g/l scope.
The spherical anion surfactant that the present invention makes; Has slow-release function if desired; Perhaps hope further to improve dissolubility, perhaps need improve its anticaking capacity, perhaps need improve non-oxidizability; In the time of perhaps need covering bad smell, can select suitable coating material that product is carried out Cotton seeds.Concrete method is: first centrifugal turntable with comminutor changes into has roughened end surface, more dried spherical product is put into comminutor, the coating material quantitative and even is sprayed on the appearance of spherical product through shower nozzle.Possibly still need carry out dried once more behind the dressing.
The spherical anion surfactant that the present invention makes mainly is used in civilian, industrial cleaning agent, in the formula for a product such as building materials blowing agent.Like civilian toothpaste, liquid detergent, hand cleanser, washing powder (liquid), shower cream, shampoo etc.; Industrial all kinds of cleaning agents, functional aid etc.; The concrete foamer of building material industry, plasterboard blowing agent etc.Especially, the form of joining after can it being adopted is applied to general, or concentrate, or even in the washing powder of hyperconcetration, can improve active matter content, and reduce the production cost of washing powder, also help the protection environment.
The specific embodiment
Following percentage all is weight percentage except that indicating.
Embodiment 1.
(1). with 136.5 kilograms of moisture content is that 1.5% alkyl carbon atoms number is 12～14 sodium alkyl sulfate; After 1.5 the methylcellulose of kilogram and 12.5 kilograms water mix; Join in the double screw extruder with 300 kilograms/hour speed; The setting screw speed is 100r/min; 30 ℃ of extrusion temperatures, material is extruded into round strip wet feed from mesh diameter is
by the radially-arranged mesh plate.Continue to obtain 150 kilograms round strip wet feed after 30 minutes.
(2). with above-mentioned round strip-shaped materials, join in the round as a ball comminutor by 30 kilograms every batch, setting the centrifugal turntable rotating speed is 400rpm, after 120 seconds of rolling granulation, obtains 30 kilograms of ball shape wet feeds.After carrying out 5 batches altogether, obtain 150 kilograms ball shape wet feed altogether.
(3). with 150 kilograms ball shape wet feed, send in the fluidized bed drying equipment by 300 kilograms/hour speed, after 120 minutes dryings, cooling, obtaining 137 kilograms of moisture content is 0.8%, and bulk density is the siccative of 329g/l.
(4). after above-mentioned 136 kilograms of siccatives are sieved; Obtain 134 kilograms, qualified
spheroidal sodium alkyl sulfate anion surfactant.
(5). the particle under will sieving returns to be mixed in the granulating raw material.
Embodiment 2.
(1). with 142 kilograms of moisture content is that 15% alkyl carbon atoms number is 16～18 sodium alkyl sulfate; After 7.5 the hydroxypropyl methylcellulose of kilogram anhydrous sodium sulfate and 0.75 kilogram mixes; Join in the double screw extruder with 300 kilograms/hour speed; The setting screw speed is 50r/min; 30 ℃ of extrusion temperatures, material is extruded into round strip wet feed from mesh diameter is
by the radially-arranged mesh plate.Continue to obtain 150 kilograms round strip wet feed after 30 minutes.。
(2). the round strip-shaped materials with extruding is come out, join in the round as a ball comminutor by 30 kilograms every batch, 20 ℃ of design temperatures, centrifugal turntable rotating speed are 600rpm, in 90 seconds of rolling granulation, obtain 30 kilograms of a collection of ball shape wet feeds.Carry out 5 batches feed intake after, obtain 150 kilograms ball shape wet feed.
(3)., send in the fluidized bed drying equipment discharging behind super-dry, blast-cold supervisor of ball shape wet feed with 150 kilograms ball shape wet feed by 300 kilograms/hour speed.After 60 minutes, obtaining 134 kilograms of moisture content is 2%, and the particle apparent density is the siccative of 1567g/l.
(4). after above-mentioned 134 kilograms of siccatives are sieved, obtain 132 kilograms of qualified
spheroidal sodium alkyl sulfate anion surfactants.
(5). the particle under will sieving returns to be mixed in the granulating raw material.
Embodiment 3.
(1). with 10.75 kilograms of moisture content is that 5% thiazolinyl carbon number is 18～24 α-Xi Jihuangsuanyan; 3.5 kilogram paratoluenesulfonic acid sodium salt and 0.75 kilogram of ethanol; After mixing,, it is joined in the single screw extrusion machine with 10 kilograms/hour speed; The setting screw speed is 15r/min; 100 ℃ of extrusion temperatures, material is
from mesh diameter, by being extruded into round strip wet feed in the radially-arranged mesh plate.Continue to obtain 15 kilograms round strip wet feed after 30 minutes.
(2). the round strip-shaped materials with extruding is come out, join in the round as a ball comminutor by 0.5 kilogram every batch, 20 ℃ of design temperatures, centrifugal turntable rotating speed are 3000rpm, in 30 seconds of rolling granulation, obtain 0.5 kilogram of a collection of ball shape wet feed.Carry out 30 batches altogether and feed intake, obtain 15 kilograms ball shape wet feed.
(3). with 15 kilograms ball shape wet feed, by 3 kilograms every batch, after dry 5 batches, obtain 13 kilograms of moisture content is 1.5% to the speed that continues 120 minutes/batches in fluidized bed drying equipment, and bulk density is the siccative of 615g/l.
(4). after above-mentioned 13 kilograms of siccatives are sieved, obtain 12 kilograms of qualified
spheroidal α-Xi Jihuangsuanyan anion surfactants.
(5). the particle under will sieving returns to be mixed in the granulating raw material.
Embodiment 4.
(1). with 149.25 kilograms of moisture content is that 10% thiazolinyl carbon number is 14～16 α-Xi Jihuangsuanyan; After 0.75 the hydroxypropyl methylcellulose of kilogram mixes; Speed with 300 kilograms/hour; It is joined in the double screw extruder, and the setting screw speed is 80r/min, 40 ℃ of extrusion temperatures; Material is
from mesh diameter, by being extruded into round strip wet feed in the radially-arranged mesh plate.Continue to obtain 150 kilograms round strip wet feed after 30 minutes.
(2). the round strip-shaped materials with extruding is come out, join in the round as a ball comminutor by 30 kilograms every batch, 20 ℃ of design temperatures, centrifugal turntable rotating speed are 300rpm, in 30 seconds of rolling granulation, obtain 30 kilograms of a collection of ball shape wet feeds.Carry out 5 batches altogether and feed intake, obtain 150 kilograms ball shape wet feed.
(3). with 150 kilograms ball shape wet feed, send in the continuous fluidized bed drying equipment by 300 kilograms/hour speed, after 60 minutes, obtaining 147 kilograms of moisture content is 2%, and the particle apparent density is the siccative of 1167g/l.
(4). after above-mentioned 147 kilograms of siccatives are sieved, obtain 145 kilograms of qualified
spheroidal methyl sodiosul foaliphatate anion surfactants.
(5). the particle under will sieving returns to be mixed in the granulating raw material.
Embodiment 5.
(1). with 135 kilograms of moisture content is that 4% alkyl carbon atoms number is 16～18 methyl sodiosul foaliphatate; After 15 kg water mix; Speed with 300 kilograms/hour; It is joined in the double screw extruder, and the setting screw speed is 120r/min, 80 ℃ of extrusion temperatures; Material is
from mesh diameter, by being extruded into round strip wet feed in the radially-arranged mesh plate.Continue to obtain 150 kilograms round strip wet feed after 30 minutes.
(2). the round strip-shaped materials with extruding is come out, join in the round as a ball comminutor by 30 kilograms every batch, 20 ℃ of design temperatures, centrifugal turntable rotating speed are 500rpm, in 30 seconds of rolling granulation, obtain 30 kilograms of a collection of ball shape wet feeds.Carry out 5 batches altogether and feed intake, obtain 150 kilograms ball shape wet feed.
(3). with 150 kilograms ball shape wet feed, send in the continuous fluidized bed drying equipment by 300 kilograms/hour speed, after 90 minutes, obtaining 143 kilograms of moisture content is 4.5%, and bulk density is the siccative of 767g/l.
(4). after above-mentioned 143 kilograms of siccatives are sieved; Obtain 140 kilograms, qualified
spheroidal methyl sodiosul foaliphatate anion surfactant.
(5). the particle under will sieving returns to be mixed in the granulating raw material.
Embodiment 6.
(1). with 111.5 kilograms of moisture content is that 3% alkyl carbon atoms number is 8～14 sodium alkyl sulfate; 37 kilograms of moisture content are that 25% alkyl carbon atoms number is 12～14 fatty alcohol ether sulphate; After 1.5 the water of kilogram mixes; Speed with 300 kilograms/hour; It is joined in the double screw extruder; The setting screw speed is 75r/min, 30 ℃ of extrusion temperatures, and material is from mesh diameter is
by being extruded into round strip wet feed the radially-arranged mesh plate.Continue to obtain 150 kilograms round strip wet feed after 30 minutes.
(2). the round strip-shaped materials with extruding is come out, join in the round as a ball comminutor by 30 kilograms every batch, 30 ℃ of design temperatures, centrifugal turntable rotating speed are 1000rpm, in 30 seconds of rolling granulation, obtain 30 kilograms of a collection of ball shape wet feeds.Carry out 5 batches altogether and feed intake, finally obtain 150 kilograms ball shape wet feed.
(3). with 150 kilograms ball shape wet feed, send in the continuous fluidized bed drying equipment by 300 kilograms/hour speed, after 30 minutes, obtaining 140 kilograms of moisture content is 3%, and bulk density is 463g/l, and the particle apparent density is the siccative of 625g/l.
(4). after above-mentioned 140 kilograms of siccatives are sieved; Obtain 139 kilograms, qualified
the spheroidal sodium alkyl sulfate and the mixture anion surfactant of fatty alcohol ether sodium sulfonate.
(5). particle and fine powder reuse under the sieve.
Embodiment 7.
After being right after embodiment 1 it (4) step, change the centrifugal turntable in the round as a ball comminutor into the coarse dish that does not have disrumpent feelings tooth, take by weighing 30 kilograms of qualified spheroidal sodium alkyl sulfates; Put it in the round as a ball comminutor; 30 ℃ of design temperatures, centrifugal turntable rotating speed are 500rpm, in 10 times in second; From the spheroidal sodium alkyl sulfate of spray nozzle to round as a ball comminutor; At the uniform velocity spray into 0.3 kilogram of Hydroxypropyl methylcellulose coating solution, discharging after 20 seconds of rolling again obtains the sodium alkyl sulfate that 30 kilograms of skins have dressing.
Embodiment 8.
After being right after embodiment 1 it (4) step; Change the centrifugal turntable in the round as a ball comminutor into the coarse dish that does not have disrumpent feelings tooth, take by weighing 30 kilograms of qualified spheroidal sodium alkyl sulfate anion surfactants, put it in the round as a ball comminutor; 30 ℃ of design temperatures; The centrifugal turntable rotating speed is 500rpm, in 10 times in second, at the uniform velocity sprays into 0.65 kilogram of gum arabic coating solution from the spheroidal sodium alkyl sulfate anion surfactant of spray nozzle to round as a ball comminutor; The discharging after 20 seconds of then rolling obtains the sodium alkyl sulfate that 31 kilograms of skins have dressing.
Claims (11)
1. the manufacturing approach of a spherical anion surfactant; Employing extrudes, round as a ball prilling; With the anion surfactant major ingredient with after the granulation auxiliary material mixes; Send into have the screw rod feed appliance, in the extruder that recipient and mesh plate are formed, under the co-extruded of screw rod feed appliance and recipient, material forms round strip-shaped materials different in size through mesh plate; Said round strip-shaped materials is sent into round as a ball comminutor; The circle strip-shaped materials is cut into the consistent short cylindrical shape material particles of length by the disrumpent feelings tooth on the centrifugal turntable of round as a ball comminutor rotation earlier; Then under the gas acting in conjunction between centrifugal turntable, material particles, comminutor barrel, comminutor barrel, all material particles are crumpled into the spheroidal particle; It is characterized in that: the surfactant major ingredient moisture content before the granulation is 1.5～25%; The solid total content of the anion surfactant major ingredient of entering extruder and the mixture of granulation auxiliary material is 85%～97%; The screw speed of the screw rod feed appliance of extruder is 10～150rpm, and the extrusion temperature of extruder is 10～50 ℃; A said spheroidal material obtains the spherical anion surfactant of solids content 95～99.5% (weight) through dry, cooling.
2. method according to claim 1 is characterized in that: said anion surfactant major ingredient is one or more the mixture in aliphatic alcohol sulfate, α-Xi Jihuangsuanyan, alkylbenzenesulfonate, fatty alcohol ether sulphate, the MES.
3. method according to claim 2 is characterized in that: the carbon number of the alkyl or alkenyl in the anion surfactant major ingredient is 8～24.
4. method according to claim 1 is characterized in that: said granulation auxiliary material is one or more the mixture in paratoluenesulfonic acid sodium salt, sodium sulphate, sodium sulfite, sodium carbonate, sodium acid carbonate, citric acid, natrium citricum (potassium), sodium phosphate, dibastic sodium phosphate, sodium dihydrogen phosphate, sodium acetate (potassium), sodium chloride, hydroxypropyl methylcellulose, methylcellulose, sodium carboxymethylcellulose, starch slurry, gelatin solution, gumwater, PVP, water, ethanol, propyl alcohol, isopropyl alcohol, higher aliphatic, the polyethylene glycol.
5. according to the described method of any claim of claim 1 to 4, it is characterized in that: the particle diameter of spherical anion surfactant is
6. according to the described method of any claim of claim 1 to 4, it is characterized in that: the spherical anion surfactant appearance after moulding coats the uniform coatings of a layer thickness of 0～25% (weight) again.
7. according to the described method of any claim of claim 1 to 4, it is characterized in that: the screw rod feed appliance of extruder by single, two branch or more the racemosus screw rod form.
8. according to the described method of any claim of claim 1 to 4; It is characterized in that: on the mesh plate of extruder, evenly be covered with the circular hole of diameter for
.
9. according to the described method of any claim of claim 1 to 4, it is characterized in that: the mesh plate of extruder is to be coated on the end face of recipient by axial distribution, or is coated on the outer cylinder of recipient with radial distribution; The mesh plate of said axial distribution is flat board or semi-round ball shape, and radially-arranged mesh plate is cylindrical shape, semi-cylindrical shaped or circular arc tubular.
10. method according to claim 9 is characterized in that: the mesh plate on the extruder is perhaps being put together by polylith of monolithic.
11. want described method according to any right of claim 1 to 4, it is characterized in that: the rotating speed of centrifugal turntable is 25～3000r/min in the said round as a ball comminutor.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100994815A CN101670251B (en) | 2009-06-09 | 2009-06-09 | Method for preparing spherical anion surfactant |
| PCT/CN2010/073666 WO2010142232A1 (en) | 2009-06-09 | 2010-06-08 | Preparation method of spherical anionic surfactant |
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| CN101670251B (en) * | 2009-06-09 | 2012-01-04 | 中轻化工股份有限公司 | Method for preparing spherical anion surfactant |
| CA2814019C (en) | 2010-10-14 | 2018-08-28 | Unilever Plc | Laundry detergent particle |
| ES2613702T3 (en) | 2010-10-14 | 2017-05-25 | Unilever N.V. | Laundry detergent particles |
| PL2627755T3 (en) * | 2010-10-14 | 2016-03-31 | Unilever Nv | Packaged particulate detergent composition |
| EP2627754B1 (en) | 2010-10-14 | 2016-11-30 | Unilever PLC | Laundry detergent particles |
| CN102277238B (en) * | 2011-07-13 | 2012-10-03 | 杭州迪康生物技术有限公司 | Granular fatty acid methyl ester sulfonate (MES)-containing composite |
| CN103320235B (en) * | 2013-06-21 | 2015-03-11 | 纳爱斯集团有限公司 | Particles containing sodium fatty acid methyl ester sulfonate and preparation method thereof |
| CN106862551A (en) * | 2017-03-06 | 2017-06-20 | 自贡长城硬面材料有限公司 | A kind of preparation method of cermet spherolite |
| CN108504218A (en) * | 2018-04-23 | 2018-09-07 | 合肥协耀玻璃制品有限公司 | A kind of self-cleaning coating and preparation method thereof for glass curtain wall |
| CN110590610A (en) * | 2019-06-17 | 2019-12-20 | 中轻化工绍兴有限公司 | Preparation method of high-quality sodium alkyl sulfate |
| CN111893008B (en) * | 2020-08-10 | 2022-09-20 | 纳爱斯集团有限公司 | Washing preparation and preparation method thereof |
| CN113462394B (en) * | 2021-05-31 | 2023-06-23 | 黑龙江沃坤农业科技有限公司 | Efficient restoration agent for acid soil and preparation method thereof |
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| CN101670251A (en) | 2010-03-17 |
| WO2010142232A1 (en) | 2010-12-16 |
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