WO2000036077A1 - Process for preparing laundry powder detergents - Google Patents
Process for preparing laundry powder detergents Download PDFInfo
- Publication number
- WO2000036077A1 WO2000036077A1 PCT/KR1999/000752 KR9900752W WO0036077A1 WO 2000036077 A1 WO2000036077 A1 WO 2000036077A1 KR 9900752 W KR9900752 W KR 9900752W WO 0036077 A1 WO0036077 A1 WO 0036077A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- air
- powder
- mixer
- granulation
- lifter
- Prior art date
Links
- 239000000843 powder Substances 0.000 title claims abstract description 88
- 239000003599 detergent Substances 0.000 title claims abstract description 86
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 11
- 239000000463 material Substances 0.000 claims abstract description 49
- 239000011344 liquid material Substances 0.000 claims abstract description 35
- 238000012986 modification Methods 0.000 claims abstract description 27
- 238000006243 chemical reaction Methods 0.000 claims abstract description 25
- 238000005469 granulation Methods 0.000 claims abstract description 23
- 230000003179 granulation Effects 0.000 claims abstract description 23
- 238000000034 method Methods 0.000 claims abstract description 21
- 230000008569 process Effects 0.000 claims abstract description 21
- 230000004048 modification Effects 0.000 claims abstract description 14
- 238000002156 mixing Methods 0.000 claims description 22
- 239000000203 mixture Substances 0.000 abstract description 38
- 239000002245 particle Substances 0.000 description 25
- 239000003795 chemical substances by application Substances 0.000 description 18
- 239000000047 product Substances 0.000 description 17
- 238000006386 neutralization reaction Methods 0.000 description 12
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 9
- 125000000217 alkyl group Chemical group 0.000 description 8
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 7
- 229910052799 carbon Inorganic materials 0.000 description 7
- 238000005406 washing Methods 0.000 description 7
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 6
- 230000002378 acidificating effect Effects 0.000 description 6
- 150000004996 alkyl benzenes Chemical class 0.000 description 6
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 6
- 238000002360 preparation method Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000003513 alkali Substances 0.000 description 5
- 235000014113 dietary fatty acids Nutrition 0.000 description 5
- 239000000428 dust Substances 0.000 description 5
- 239000000194 fatty acid Substances 0.000 description 5
- 229930195729 fatty acid Natural products 0.000 description 5
- 150000004665 fatty acids Chemical class 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 239000002994 raw material Substances 0.000 description 5
- 239000004094 surface-active agent Substances 0.000 description 5
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 4
- 229910021536 Zeolite Inorganic materials 0.000 description 4
- 239000002253 acid Substances 0.000 description 4
- -1 alkylbenzene sulfonate Chemical class 0.000 description 4
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 4
- 229910000028 potassium bicarbonate Inorganic materials 0.000 description 4
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 4
- 229910000027 potassium carbonate Inorganic materials 0.000 description 4
- 239000007921 spray Substances 0.000 description 4
- 239000010457 zeolite Substances 0.000 description 4
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 3
- 239000000654 additive Substances 0.000 description 3
- 239000001569 carbon dioxide Substances 0.000 description 3
- 229910002092 carbon dioxide Inorganic materials 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 230000008020 evaporation Effects 0.000 description 3
- 239000002243 precursor Substances 0.000 description 3
- 229910000029 sodium carbonate Inorganic materials 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- 150000005215 alkyl ethers Chemical class 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 238000010924 continuous production Methods 0.000 description 2
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N diphenyl Chemical compound C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 2
- PMPJQLCPEQFEJW-HPKCLRQXSA-L disodium;2-[(e)-2-[4-[4-[(e)-2-(2-sulfonatophenyl)ethenyl]phenyl]phenyl]ethenyl]benzenesulfonate Chemical compound [Na+].[Na+].[O-]S(=O)(=O)C1=CC=CC=C1\C=C\C1=CC=C(C=2C=CC(\C=C\C=3C(=CC=CC=3)S([O-])(=O)=O)=CC=2)C=C1 PMPJQLCPEQFEJW-HPKCLRQXSA-L 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 2
- 108010020132 microbial serine proteinases Proteins 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 235000015497 potassium bicarbonate Nutrition 0.000 description 2
- 239000011736 potassium bicarbonate Substances 0.000 description 2
- 235000011181 potassium carbonates Nutrition 0.000 description 2
- TYJJADVDDVDEDZ-UHFFFAOYSA-M potassium hydrogencarbonate Chemical compound [K+].OC([O-])=O TYJJADVDDVDEDZ-UHFFFAOYSA-M 0.000 description 2
- 238000010298 pulverizing process Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 2
- 235000017550 sodium carbonate Nutrition 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 238000001694 spray drying Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000000454 talc Substances 0.000 description 2
- 229910052623 talc Inorganic materials 0.000 description 2
- BIEFDNUEROKZRA-UHFFFAOYSA-N 2-(2-phenylethenyl)aniline Chemical compound NC1=CC=CC=C1C=CC1=CC=CC=C1 BIEFDNUEROKZRA-UHFFFAOYSA-N 0.000 description 1
- 239000004382 Amylase Substances 0.000 description 1
- 102000013142 Amylases Human genes 0.000 description 1
- 108010065511 Amylases Proteins 0.000 description 1
- RKWGIWYCVPQPMF-UHFFFAOYSA-N Chloropropamide Chemical compound CCCNC(=O)NS(=O)(=O)C1=CC=C(Cl)C=C1 RKWGIWYCVPQPMF-UHFFFAOYSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
- 102000004882 Lipase Human genes 0.000 description 1
- 108090001060 Lipase Proteins 0.000 description 1
- 239000004367 Lipase Substances 0.000 description 1
- 108091005804 Peptidases Proteins 0.000 description 1
- 239000004365 Protease Substances 0.000 description 1
- 102100037486 Reverse transcriptase/ribonuclease H Human genes 0.000 description 1
- 239000004115 Sodium Silicate Substances 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical compound [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 150000008051 alkyl sulfates Chemical class 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 235000019418 amylase Nutrition 0.000 description 1
- 239000002518 antifoaming agent Substances 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 229940077388 benzenesulfonate Drugs 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000004305 biphenyl Substances 0.000 description 1
- 235000010290 biphenyl Nutrition 0.000 description 1
- 238000005282 brightening Methods 0.000 description 1
- KDYFGRWQOYBRFD-NUQCWPJISA-N butanedioic acid Chemical compound O[14C](=O)CC[14C](O)=O KDYFGRWQOYBRFD-NUQCWPJISA-N 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 229910021386 carbon form Inorganic materials 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 229910052570 clay Inorganic materials 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000004453 electron probe microanalysis Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000006081 fluorescent whitening agent Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 239000002198 insoluble material Substances 0.000 description 1
- 150000002500 ions Chemical group 0.000 description 1
- 235000019421 lipase Nutrition 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- KJPHTXTWFHVJIG-UHFFFAOYSA-N n-ethyl-2-[(6-methoxypyridin-3-yl)-(2-methylphenyl)sulfonylamino]-n-(pyridin-3-ylmethyl)acetamide Chemical compound C=1C=C(OC)N=CC=1N(S(=O)(=O)C=1C(=CC=CC=1)C)CC(=O)N(CC)CC1=CC=CN=C1 KJPHTXTWFHVJIG-UHFFFAOYSA-N 0.000 description 1
- 239000004006 olive oil Substances 0.000 description 1
- 235000008390 olive oil Nutrition 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- 239000002304 perfume Substances 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 235000019419 proteases Nutrition 0.000 description 1
- DNXIASIHZYFFRO-UHFFFAOYSA-N pyrazoline Chemical compound C1CN=NC1 DNXIASIHZYFFRO-UHFFFAOYSA-N 0.000 description 1
- LISFMEBWQUVKPJ-UHFFFAOYSA-N quinolin-2-ol Chemical compound C1=CC=C2NC(=O)C=CC2=C1 LISFMEBWQUVKPJ-UHFFFAOYSA-N 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 1
- 229910052911 sodium silicate Inorganic materials 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 239000001384 succinic acid Substances 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D11/00—Special methods for preparing compositions containing mixtures of detergents
- 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
- C11D11/0082—Special methods for preparing compositions containing mixtures of detergents one or more of the detergent ingredients being in a liquefied state, e.g. slurry, paste or melt, and the process resulting in solid detergent particles such as granules, powders or beads
- C11D11/0088—Special methods for preparing compositions containing mixtures of detergents one or more of the detergent ingredients being in a liquefied state, e.g. slurry, paste or melt, and the process resulting in solid detergent particles such as granules, powders or beads the liquefied ingredients being sprayed or adsorbed onto solid particles
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
- C11D17/06—Powder; Flakes; Free-flowing mixtures; Sheets
- C11D17/065—High-density particulate detergent compositions
Definitions
- the present invention relates to a process for preparing laundry powder detergents by means of an air lifter which indrafts an air, not using a counter current spray dryer. More specifically, the present invention relates to a process for preparing laundry powder detergents having excellent fluidity, solubility and anti-caking property and further having broad bulk density of 0.3-1.2g/ml, which process comprises supplying a liquid material and a powder material into the outlet portion and/or the other portion of the air lifter in which one or more continuous and/or batch mixer are mounted with an agitating shaft having an agitating fan, subjecting to a granulation or reaction and granulation of the supplied materials to form a powder of a detergent composition, supplying the powder into the outlet and/or the inner portion of the air lifter to pass them in the opposite direction to the air flow of the air lifter under appropriate temperature and drafting pressure, and then carrying out further granulation and surface modification.
- a powder detergent is prepared by using as a final product a dried particle having a low bulk density of less than 0.5g/cc dried by a counter current spray dryer, or by injecting and pulverizing the dried particle into the mixer, spraying a liquid material into the mixer to form a contacting point of the dried particle, coating water-insoluble materials such as zeolite, talc, etc. to give a powder detergent having a high bulk density, and then adding additives thereto to give the desired detergent product.
- EP-390251 (Unilever) and EP-544365(Unilever) disclose processes for preparing a detergent composition without a spray-drying step. These processes prepare a detergent composition by forming an alkylbenzene sulfonate and particulating it with a surface modifying agent, but the processes have disadvantages in that a thorough neutralization of fatty acid or alkylbenzene sulfonic acid is likely to become difficult; there remain unreacted materials; the product quality is poor; and the concentration of the detergent is limited. When the liquid material used as a binder are contained in a large amount, the prepared particle becomes sticky and the detergent takes place a hard caking phenomenon during storage.
- the cavity in the detergent particle is not formed; therefore, preparation of a detergent having a low bulk density of less than 0.7 g/cc is not possible, and an increase in the content of the liquid material becomes difficult.
- powder detergents having excellent fluidity, solubility and anti-caking property and further having a broad bulk density of 0.3-1.2g/ml can be prepared by the process which comprises supplying a liquid material and a powder material into the outlet and/or the other portion of an air lifter in which one or more continuous and/or batch mixer are mounted with an agitating shaft having an agitating fan, subjecting to a granulation or reaction and granulation of the supplied materials to form a powder of a detergent composition, supplying the powder into the outlet and/or the inner portion of the air lifter to pass them in the opposite direction to the air flow of the air lifter under appropriate temperature and drifting pressure, and then carrying out further granulation and surface modification.
- Fig. 1 is a perspective view of an apparatus for the preparation of laundry powder detergents according to the present invention.
- the reference numbers have the following meaning:
- the present invention relates to a process for preparing laundry powder detergents which process comprise:
- a partially neutralized precursor of the surfactant conventionally used for detergent e.g., acidic materials such as alkylbenzene sulfonic acid, alpha-olefine sulfonic acid, alkylsulfonic acid, fatty acid, citric acid or succinic acid, and alkali builders such as soda ash, sodium bicarbonate, potassium carbonate(K 2 C0 3 ), potassium bicarbonate(KHC0 3 ) and the like are blended at a high speed of from 50 to 4000 rpm, carbon dioxide and water are generated, with an absorbable porous structure being formed with the other materials and, at the same time, the liquid material being absorbed.
- acidic materials such as alkylbenzene sulfonic acid, alpha-olefine sulfonic acid, alkylsulfonic acid, fatty acid, citric acid or succinic acid
- alkali builders such as soda ash, sodium bicarbonate, potassium carbonate(K 2 C0 3 ), potassium bicarbonate(
- the surface-modification is carried out with a surface modifying agent to be included in the powder material or to be separately injected. And if these are exposed to air under an appropriate temperature and flow rate, it is possible to adjust the evaporation and effervescent phenomenon of the moisture produced upon neutralization by the turbulent flow formed in the inner portion of the air lifter or contained in the materials themselves so that the surface-modification of the detergent particle may be carried out. Therefore, the laundry powder detergent having excellent fluidity, solubility and anti-caking property and further having a broad bulk density of from 0.3 to 1.2 g/ml.
- a mixer having the liquid material supplying device(l) (m) and the powder material supplying device(g)(i)(j)(n)(o) is mounted with the outlet and/or the other position of the air lifter(a).
- the liquid material and the powder material are injected and then blended or reacted/blended at the speed of from 50 to 4000 rpm and, at the same time, a surface-modification is carried out with a surface modifying agent included in the powder material or separately injected.
- the first blending is carried out in the mixer(r) mounted in the separate position.
- the mixtures are then moved to the mixer mounted with the air lifter(a) and the second blending can be carried out to prepare a powder of the detergent composition.
- the powder thus prepared is injected in the outlet and/or the inner portion of the air lifter(a) under drifting pressure of less than 2 kg/cm and air temperature of less than 400 °C and then is passed in the opposite direction to the air drifting direction(q) to evaporate the moisture contained in the raw material, while adjusting the neutralization and effervescent reaction, to thereby form a particle.
- the continuous processes of the granulation, neutralization, surface modification and drifting are carried out for a short period of time, the capability of preparation is increased and the product quality is good. Therefore, the laundry powder detergent composition having excellent fluidity, solubility and non-caking property and further having a broad bulk density of from 0.3 to 1.2 g/ml may be obtained.
- the outlet of the air lifter(a) used in the present invention is constructed so that an air is drifted by an air indrafting device, a dust collector and a heat exchanger.
- the air lifter is mounted with a liquid material supplying device(l)(m), a powder material supplying device(g)(i)(j) (n)(o) and a mixer comprising an agitating shaft(b)(e) having an agitating fan(c)(d).
- the powder of the detergent composition is blended from a separately mounted mixer(r). Also, the powder of the detergent composition prepared from the separately mounted mixer(r) can be re-blended. The powder and liquid materials supplying devices injected in the mixer are smoothly blended and reacted.
- Each powder and liquid materials supplying devices are attached to the raw materials injecting devices capable of adjusting the amount of injection. So, the materials can be injected at a constant speed, and mixing ratio of each material can be adjusted optionally.
- the powder and liquid materials supplying devices are provided with the mixer, if desired, and can be added to the air lifter.
- the outlet of the air lifter is constructed so that an air can be drifted by a dust collector and a heat exchanger. It is advisable to be closed, but it is possible to provide a ventilation hole so as to adjust an air pressure of the inner portion.
- the dust collector acts as collecting from air a fine particle taken place in the course of preparation. The fine powder of the collected detergent composition is drifted to the powder material supplying device and is recycled.
- the fluidized direction of the powder detergent which is drifted by the air lifter is positioned so that the air injecting port in the opposite direction to the air to be injected is arranged in the lower position when compared to the air outlet.
- the drifting direction of the air and detergent particle is in the opposite direction.
- a fresh air contacts with the detergent particle continuously to carry out a rapid reaction and a water evaporation.
- the air lifter can be provided in the vertical and/or diagonal direction so that the particle of the detergent composition can be dropped by a gravity.
- the air lifter can be selected depending upon the plant building and the area to have the production instrument, and/or upon the composition or property of the product. They are not particularly limited.
- the mixer can be provided in the outlet position of the air lifter(a) or in the separate position with the air lifter(a).
- the powder drifting direction(p) is in the opposite direction to the air flow.
- the time of drifting the detergent particle become long and the detergent particle contacts with a fresh air continuously to make a through neutralization during drifting. Therefore, it is more preferred when the materials are contained in a large amount or a further through reaction has to be carried out.
- the laundry detergent product having a broad bulk density may be prepared by adjusting the air pressure and temperature.
- the process of the present invention has advantages when the powder of the detergent composition is prepared from the mixer mounted separately with the air lifter and is injected into the air lifter; an adjustment of the time of blending the used materials is required, or when the powder material is contained in a larger amount than the liquid material and so it is required to carry out a blending for a relatively long period of time, or when additives or further surface modifying agent are injected into the outlet and/or the inner portion of the air lifter.
- the reaction of the particles is made slowly, an excessive reaction is not made rapidly and the properties of the particles such as a bulk density of the detergent prepared is excellent.
- the powder of the detergent composition is prepared from the mixer mounted separately with the air lifter and is further blended in the mixer having the air lifter, this approach is used in case where the powder material is contained in a larger amount than the liquid material in a continuous process and the blending must be carried out for a relatively long period of time, or in case where the reactivity of the liquid material is low and the reaction must be carried out by a further strong agitation.
- the detergent having a higher bulk density may be obtained than when once blended.
- the mixer may use a continuous or a batch type.
- the continuous type produces the product without stop and the deviation between lots is low. Hence, the continuous type is proper for a large production and it is possible to mount both with the air lifter and with the other position.
- a rotating shaft having an agitating fan is provided in the vertical and/or horizontal direcction.
- the batch type optionally mounted with a separate chopper may be used for the preparation of a conventional detergent.
- These batch types include a rotating drum mixer, a vertical orbiting screw mixer, a ribbon mixer, a Lodige mixer, a high speed mixer and the like.
- the rotating shaft having an agitating fan is provided in the vertical and/or horizontal direction.
- the continuous type optionally mounted with a chopper may be used for the preparation of a conventional detergent.
- These continuous types include a L ⁇ dige mixer, a Schugi mixer, a Kette mix reactor, a rotating drum mixer and the like. But the types of the mixer are selected depending upon the properties of the materials to be blended.
- the mixer is not particularly limited.
- the speed of the air which drifts a powder of the detergent composition is preferably less than 15m/sec.
- the powder is drifted in the air-flow direction and is moved to the dust collector and heat exchanger in which a dust collection and a heat exchange are not well done; the air of the air lifter is combined with a particle of the detergent composition; the lump is not evenly absorbed/blended.
- the liquid-rich portions particles are combined with each other to form a lump, and for the liquid-free portions particles are present in the powder form without a liquid material. Therefore, an ununiform product with a low commercial value is obtained.
- the air injected in the air lifter is produced either under the atmosphere or by the air producing device in which a cooling and a heating are possible.
- the temperature is preferably from 0 to 400 ° C .
- the lower the temperature the slower the neutralization.
- the higher the temperature the more rapid the nuetralization; so it is advantageous to prepare the detergent product having a small content of the acidic material.
- the temperature of the air refers to that measured in the outlet portion of the air lifter.
- a partially-neutralized precursor of the surfactant generally used for detergent e.g., alkylbenzene sulfonic acid, alkylether sulfonic acid, alpha olefine sulfonic acid, alkylsulfonic acid, fatty acid, citric acid, succinic acid or mixtures thereof, may be used.
- the alkali builder may include one or more selected from the group consisting of sodium carbonate (Na 2 C0 3 ), sodium bicarbonate(NaHC0 3 ), potassium carbonate (K 2 C0 3 ), potassium bicarbonate(KHC0 3 ) and sodium sulfate (Na 2 S0 ).
- the acidic material and alkali builder are reacted due to a rotation of the agitating device and/or to a hot air of the air lifter, to form a carbon dioxide and water, with a absorbable porous structure being formed while blending with other materials, and a liquid material being absorbed.
- the surface-modification is then carried out by the surface modifying agent included in the powder material or separately injected. These are exposed to the air under an appropriate temperature and a flow rate to evaporate a moisture occurred and adjust a effervescemt phenomenon.
- a separate surface modifying agent is injected in the same or lower position into which a detergent composition is injected.
- the surface modifying agent In case of the same position, it is preferable to inject the surface modifying agent together with the detergent.
- the surface modifying agent having a relatively low bulk density and a fine particle form rises by the air and then contacts the detergent composition lowering by a gravity, to thereby coat the surface and carry out a surface modification.
- a conventional surfactant or a surfactant solution for detergent may be used.
- the powder or liquid components such as alpha-olefine sulfonate, alkyl sulfate, alkyl benzene sulfonate, alkylether sulfonate, alkyl ethoxylate, alkyl polyglucoside, glucamide, amine oxide and the like may be used. These components are blended and absorbed into the absorbable porous structure formed by a effervescent reaction. By doing so, a surface modifying agent is coated. Further, conventional liquid or powder components for detergent, e.g., sodium silicate, polyacrylate, fluorescent whitening agent, etc., may be used.
- the detergent composition is prepared by a mixer mounted at the separate position.
- the resulting composition is moved through a conventional velt-type conveyor velt, the liquid material is absorbed stably into the porous structure during drifting.
- the surface modifying agent is selected from one or more selected from powder zeolite, talc, clay and silica, which are generally used for detergent.
- the surface modifying agent coats the surface of the particle to increase the fluidity and storage stability of the neutralized particle.
- the surface modifying agent is injected and blended concurrently with the liquid and powder materials into the mixer or injected directly into the air lifter, to thereby coat the surface of the mixed detergent composition and inhibits the whole properties of the detergent powder such as fluidity or anti-caking property.
- the laundry detergent composition prepared by the above mentioned processe may be prepared by adding one or more fluorescent brightening agent selected from the group consisting of aminostilbene, biphenyl, cumarine, pyrazoline and quinolone; and/or one or more enzymes selected from the group consisting of protease, amylase, lipase and celluase; and/or one or more anti-foaming agent selected from silicone or paraffin wax or additives such as perfumes, soil-redeposition inhibiting agents, fiber dye transfer inhibitors and the like.
- fluorescent brightening agent selected from the group consisting of aminostilbene, biphenyl, cumarine, pyrazoline and quinolone
- enzymes selected from the group consisting of protease, amylase, lipase and celluase
- anti-foaming agent selected from silicone or paraffin wax or additives such as perfumes, soil-redeposition inhibiting agents, fiber dye transfer inhibitors and the like.
- the bead powder detergent was prepared by spraying the detergent with the components and content shown in Table 1 in the downward from the upper part of a countercurrent spray dryer. Table 1.
- the agitator having an agitating fan was mounted in the outlet portion of the air lifter which indrafts the air.
- the liquid material supplying device and the powder material supplying device were mountd with the agitator and/or the air lifter.
- the liquid material and the powder material were injected according to the composition shown in the following Table 2 and then blending or reaction/surface modification were carried out at the speed of 2000 rpm.
- the powder of the detergent composition was passed in 20 tons per hour in the opposite to the air drifting direction of the air lifter through which the air rate of 8m/sec and temperature of 120 ° C are passed, to thereby adjust the level of the neutralization and effervescent reactions.
- the moisture contained in the raw materials is evaporated to form a particle.
- the laundry powder detergents A-F are thus obtained.
- the laundry powder detergent F was prepared by injecting 9.5 percent by weight of a surface modifying agent (50% of Zeolite) downward the inlet of the detergent composition prepared through the powder material supplying device equipped with the air lifter.
- the liquid material and the powder material were injected according to the composition shown in Table 2 into the mixer mounted with the liquid material supplying device, the powder injecting device, and the agitator having an agitating fan.
- the blending or reaction/blending /surface modification were carried out at the speed of 2000 rpm.
- the powder of the detergent composition was passed in 20 tons per hour in the opposite to the air drifting direction of the air lifter through which the air rate of 8m/sec and temperature of 120 ° C are passed, to thereby control the level of the neutralization and effervescent reactions.
- the moisture contained in the raw materials is evaporated to form a particle.
- the laundry powder detergent G-L are thus obtained.
- the laundry powder detergent F was prepared by injecting 9.5 percent by weight of a surface modifying agent (Zeolite) downward the inlet of the powder of the detergent composition prepared through the powder injecting device mounted with the air lifter.
- the laundry powder detergent M was injected according to a composition D shown in Table 2 in the mixer mounted with the liquid material supplying device, the powder injecting device, and the agitator having an agitating fan.
- the blending or reaction/blending/surface modification were carried out at the speed of 2000 rpm.
- the powder of the detergent composition was passed 20 tons per hour in the opposite to the air drifting direction of the air lifter through which the air speed of 8m/sec and temperature of 120 ° C are passed, to thereby control the level of the neutralization and effervescent reactions.
- the agitator having an agitating fan was mounted in the outlet portion of the air lifter which indrafts an air.
- the liquid material supplying device and the powder injecting device were mounted with the agitator and/or the air lifter.
- the liquid material and the powder material were injected according to the composition A of Example 1 and then blending or reaction/surface modification were carried out at the speed of 2000 rpm.
- the powder of the detergent composition was passed in 20 tons per hour in the opposite to the air drifting direction of the air lifter through which the air speed and temperature as shown in Table 3 are passed, to thereby control the neutralization and effervescent reactions.
- the moisture contained in the raw materials is evaporated to form a particle.
- the laundry powder detergent M-V were thus prepared. Table 3.
- washing apparatus Terg-O-Tometer wasing temperature: 20 °C hardness of water: 40ppm Ca ++ , 10 ppm Mg " ⁇ water ratio: 4.5g soiled swatch/1 I soiled cloth: EMPA Art No. 101 (olive oil, carbon black/cotton) dosage of detergent: 0.67g/ i evaluation: the washing performance measured based on 100 for Comparative Example 1.
- the laundry powdery detergent prepared according to the present invention has excellent fluidity, solubility, yield and washing performance and further has a broad bulk density.
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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)
- Detergent Compositions (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU16925/00A AU1692500A (en) | 1998-12-12 | 1999-12-08 | Process for preparing laundry powder detergents |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1998/54603 | 1998-12-12 | ||
KR19980054603 | 1998-12-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2000036077A1 true WO2000036077A1 (en) | 2000-06-22 |
Family
ID=19562519
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/KR1999/000752 WO2000036077A1 (en) | 1998-12-12 | 1999-12-08 | Process for preparing laundry powder detergents |
Country Status (4)
Country | Link |
---|---|
CN (1) | CN1177922C (en) |
AU (1) | AU1692500A (en) |
GC (1) | GC0000084A (en) |
WO (1) | WO2000036077A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109536301A (en) * | 2018-11-14 | 2019-03-29 | 山东丽波日化股份有限公司 | A kind of high-speed kneading is granulated the device and its production method of production concentrated detergent powder |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1984004054A1 (en) * | 1983-04-08 | 1984-10-25 | Peters Claudius Ltd | Process and apparatus for spraying a powder with liquid |
EP0512552A1 (en) * | 1991-05-09 | 1992-11-11 | Kao Corporation | Process for producing high bulk density granular detergent |
DE19723616A1 (en) * | 1997-06-05 | 1998-12-10 | Henkel Kgaa | Granular detergent |
-
1999
- 1999-11-30 GC GCP1999387 patent/GC0000084A/en active
- 1999-12-08 AU AU16925/00A patent/AU1692500A/en not_active Abandoned
- 1999-12-08 CN CNB998141348A patent/CN1177922C/en not_active Expired - Fee Related
- 1999-12-08 WO PCT/KR1999/000752 patent/WO2000036077A1/en active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1984004054A1 (en) * | 1983-04-08 | 1984-10-25 | Peters Claudius Ltd | Process and apparatus for spraying a powder with liquid |
EP0512552A1 (en) * | 1991-05-09 | 1992-11-11 | Kao Corporation | Process for producing high bulk density granular detergent |
DE19723616A1 (en) * | 1997-06-05 | 1998-12-10 | Henkel Kgaa | Granular detergent |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109536301A (en) * | 2018-11-14 | 2019-03-29 | 山东丽波日化股份有限公司 | A kind of high-speed kneading is granulated the device and its production method of production concentrated detergent powder |
CN109536301B (en) * | 2018-11-14 | 2020-07-17 | 潍坊光华精细化工有限公司 | Device for producing concentrated washing powder by high-speed kneading granulation and production method thereof |
Also Published As
Publication number | Publication date |
---|---|
GC0000084A (en) | 2004-06-30 |
CN1177922C (en) | 2004-12-01 |
AU1692500A (en) | 2000-07-03 |
CN1329661A (en) | 2002-01-02 |
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