CN101956028A - Method for preparing leather fat liquor by treating electrostatic acids by spraying method - Google Patents
Method for preparing leather fat liquor by treating electrostatic acids by spraying method Download PDFInfo
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- CN101956028A CN101956028A CN2010102802225A CN201010280222A CN101956028A CN 101956028 A CN101956028 A CN 101956028A CN 2010102802225 A CN2010102802225 A CN 2010102802225A CN 201010280222 A CN201010280222 A CN 201010280222A CN 101956028 A CN101956028 A CN 101956028A
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- leather fat
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- static
- pressure nozzle
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Abstract
The invention relates to a method for preparing leather fat liquor, which aims to solve the problem of environmental protection in sulfonation production and simultaneously improve the economic benefits with less process equipment investment. The technical scheme of the invention is that: the method for preparing the leather fat liquor by treating electrostatic acids by a spraying method comprises the following steps of: reserving a pressure nozzle in a vertical pipeline connected with a gas-liquid separator and an electrostatic precipitator, communicating the pressure nozzle with a spraying device outside the pipeline, and spraying organic materials for spraying in a storage groove from the pressure nozzle by a metering pump under pressure for contact reaction with tail gases; and causing the reacted materials to flow out of the bottom of the electrostatic precipitator to a stirred tank reactor, performing neutralization with alkali until the pH is 6.0 to 7.5, adding hydrogen peroxide to perform decoloring for 4 to 10 hours, and adding a preservative and water for conditioning to obtain the fat liquor product.
Description
Technical field
The present invention relates to a kind of preparation method of leather fat, specifically is that organism is carried out the method that contact reacts prepares leather fat through high-pressure fog and SO 3 sulfonated tail gas.
Technical background
SO 3 sulfonated is the main technique method of producing anion surfactant.After organic material and sulphur trioxide generation sulfonation reaction, from gas-liquid separator and the isolated sulfonated tail gas of cyclonic separator, contain unconverted sulfurous gas, unreacted sulphur trioxide, sulfuric acid mist and organic acid mist, directly discharging can serious environment pollution.In order to reach the environment protection emission requirement, these compositions must be removed, normally adopt electrostatic precipitator (ESP) to capture, absorbed by soda acid again and alkali cleaning etc. further handled, and is discharged in the atmosphere after tail gas is up to standard again.
The recovery liquid that is obtained by electrostatic precipitator is referred to as static acid, accounts for 0.1%～0.4% of organic raw material, generally is black, and main component is oversulfonate organic acid (70%～80%) and sulfuric acid (20%～30%).Certain surface active ingredient (about 10%～30% activeconstituents) is arranged, because color is difficult to use in the daily use chemicals industry deeply.Each manufacturer handles or transfers to environmental administration's processing with its cheapness at present, and this not only wastes resource, but also environment is caused certain pressure.Therefore, how to recycle static acid, improve its using value, the overall economic efficiency that increases SO 3 sulfonated industry has important practical significance.
Summary of the invention
The preparation method who the purpose of this invention is to provide a kind of leather fat, this method should solve the sulfonation production environmental issue, and technological equipment investment is few again simultaneously, to increase economic efficiency.
The technical solution used in the present invention is: a kind of spray method is handled the method that static acid prepares leather fat, setting pressure nozzle in gas-liquid separator and vertical pipeline that electrostatic precipitator is connected, the spraying plant that this pressure nozzle communicating pipe is outer, the organic materials that is used to spray in the storage tank forms vaporific under pressure from the pressure nozzle ejection by volume pump, carry out contact reacts with tail gas; Reacted material flows out to stirred autoclave from electrostatic precipitator bottom, with in the alkali and pH to 6.0～7.5, add the hydrogen peroxide decolouring and add sanitas after 4～10 hours, obtains the fatting agent product after adding the water adjustment.
Described organic materials comprises at least a in the lipid of rape oil, soya-bean oil, Rice pollard oil, plam oil, palm-kernel oil, fish oil, neat's foot oil, lard and Viscotrol C, perhaps comprises the lipid low-carbon-ester class of rape oil methyl esters; Perhaps comprise at least a in the lipid acid of ethylene glycol, polyoxyethylene glycol; Perhaps comprise at least a in the glyceride type of oleic acid glycol ester, oleic acid macrogol ester.
The pressure range of described volume pump is at 0.2～2.0MPa.
The ratio of described organic materials flow and static acid amount is: 0.5～10.0: 1.
Described alkali is at least a in sodium hydroxide, ammonium hydroxide, monoethanolamine, diethanolamine, the trolamine.
The add-on of described hydrogen peroxide be in and the weight ratio 1.0～15: 1 of inventory.
Described bleaching temperature is 50～80 ℃.
Described bleaching time is 1.0～24.0 hours.
The present invention makes it be atomized into the droplet of tiny particle diameter by high-pressure fog grease (organic materials), carry out contact reacts with organic acid of carrying secretly in the tail gas and mineral acid (sulfuric acid), two key generation electrophilic addition reactions of the unsaturated fatty acids in organic acid (or mineral acid) and the grease molecule, with hydroxyl generation esterification in the grease molecule, the product of generation and alkali neutralization promptly become the anion surfactant as leather fat; It has emulsifying property, can form stable emulsion with unreacted grease wherein.The contact reacts degree is high more, and emulsion particle is more little, and emulsion is transparent or semitransparent shape, good penetrability, but the leather oil sense deficiency after the stuffing.The contact reacts degree is low more, and emulsion particle is big more, and emulsion is creamy white, poor permeability, but the leather surface after the stuffing moistens, cured sense well.By the ratio of lipid regulating and static acid, can control the emulsifying capacity of product.
The invention has the beneficial effects as follows: the method that is provided has not only been produced high-quality product, and original waste is applied in the production of leather fat, solve the environmental issue of sulfonation production effectively, realized making full use of of cleaner production and resource.In addition, also significantly improved the overall economic efficiency of SO 3 sulfonated industry.
Description of drawings
Fig. 1 is a fog system setting drawing of the present invention.
Wherein: the 1-exhaust pipe; The 2-storage tank; The 3-volume pump; 4-electrostatic precipitator (ESP); The 5-stirred autoclave; The 6-pressure nozzle.
Embodiment
The preparation method of a kind of leather fat of the present invention, in the exhaust pipe 1 of the vertical layout that gas-liquid separator (omitting among the figure) is connected with electrostatic precipitator 4, setting pressure nozzle 6, pressure nozzle is by the outer spraying plant (comprising storage tank 2, volume pump 3) of pipe connection pipe; Organic materials in the storage tank 2 is formed vaporificly under pressure from the pressure nozzle ejection by volume pump 3, carry out contact reacts with tail gas in the exhaust pipe; Reacted material flows out to stirred autoclave 5 from electrostatic precipitator bottom, is neutralized to pH 6.0～7.5 with alkali, adds the hydrogen peroxide decolouring and adds sanitas after 4～10 hours, obtains the fatting agent product after adding the water adjustment; From stirred autoclave, derive at last (shown in the arrow B).A small amount of tail gas is discharged (shown in the arrow A) from the top of electrostatic precipitator.
The invention will be further described below in conjunction with embodiment, but the present invention is not limited to this embodiment.
Embodiment 1
In exhaust pipe, spray into rape oil, per hour flow is 35kg, static acid flow is 7kg per hour, the pressure of volume pump is 1.2MPa, reacting rear material enters 1 ton of reactor, stop to enter when reaching 1 ton of left and right sides after the material adjustment in the still, switch to another stirred autoclave, open and stir, slowly add the ammoniacal liquor neutralization, neutralization back pH was 6.0, adds the hydrogen peroxide (27.5%) of 60kg, 75 ℃ of decolourings 10 hours, after color and luster reaches requirement, add the triumphant loose 1kg of sanitas, add the water adjustment contain solid 70.3%, the fatting agent product.
Embodiment 2
In exhaust pipe, spray into fish oil, per hour flow is 50kg, static acid flow is 7kg per hour, the pressure of volume pump is 1.6MPa, reacting rear material enters 1 ton of reactor, stop to enter when reaching 1 ton of left and right sides after the material adjustment in the still, switch to another stirred autoclave, open and stir, slowly hydro-oxidation sodium neutralization, neutralization back pH was 6.5, adds the hydrogen peroxide (27.5%) of 40kg, 70 ℃ of decolourings 6 hours, after color and luster reaches requirement, add preservative sodium benzoate 1kg, add the water adjustment contain solid 71.5%, the fatting agent product.
Embodiment 3
In exhaust pipe, spray into soya-bean oil, per hour flow is 60kg, static acid flow is 7kg per hour, the pressure of volume pump is 2.0MPa, reacting rear material enters 1 ton of reactor, stop to enter when reaching 1 ton of left and right sides after the material adjustment in the still, switch to another stirred autoclave, open and stir, slowly add the diethanolamine neutralization, neutralization back pH was 7.1, adds the hydrogen peroxide (27.5%) of 50kg, 65 ℃ of decolourings 5 hours, after color and luster reaches requirement, add potassium sorbate preservative 1kg, add the water adjustment contain solid 69.8%, the fatting agent product.
Embodiment 4
In exhaust pipe, spray into the rape oil methyl esters, per hour flow is 28kg, static acid flow is 7kg per hour, the pressure of volume pump is 1.0MPa, reacting rear material enters 1 ton of reactor, stop to enter when reaching 1 ton of left and right sides after the material adjustment in the still, switch to another stirred autoclave, open and stir, slowly add the liquid caustic soda neutralization, neutralization back pH was 6.7, adds the hydrogen peroxide (27.5%) of 70kg, 72 ℃ of decolourings 7 hours, after color and luster reaches requirement, add sanitas isothiazolinone 1kg, add the water adjustment contain solid 69.2%, the fatting agent product.
Embodiment 5
In exhaust pipe, spray into oleic acid glycol ester, per hour flow is 15kg, static acid flow is 7kg per hour, the pressure of volume pump is 0.8MPa, reacting rear material enters 1 ton of reactor, stop to enter when reaching 1 ton of left and right sides after the material adjustment in the still, switch to another stirred autoclave, open and stir, slowly add the monoethanolamine neutralization, neutralization back pH was 6.3, adds the hydrogen peroxide (27.5%) of 65kg, 60 ℃ of decolourings 8 hours, after color and luster reaches requirement, add the triumphant loose 1kg of sanitas, add the water adjustment contain solid 71.8%, the fatting agent product.
Claims (8)
1. a spray method is handled the method that static acid prepares leather fat, setting pressure nozzle in gas-liquid separator and vertical pipeline that electrostatic precipitator is connected, the spraying plant that this pressure nozzle communicating pipe is outer, the organic materials that is used to spray in the storage tank forms vaporific under pressure from the pressure nozzle ejection by volume pump, carry out contact reacts with tail gas; Reacted material flows out to stirred autoclave from electrostatic precipitator bottom, with in the alkali and pH to 6.0～7.5, add the hydrogen peroxide decolouring and add sanitas after 4～10 hours, obtains the fatting agent product after adding the water adjustment.
2. a kind of spray method according to claim 1 is handled the method that static acid prepares leather fat, it is characterized in that: described organic materials comprises at least a in the lipid of rape oil, soya-bean oil, Rice pollard oil, plam oil, palm-kernel oil, fish oil, neat's foot oil, lard and Viscotrol C, perhaps comprises the lipid low-carbon-ester class of rape oil methyl esters; Perhaps comprise at least a in the lipid acid of ethylene glycol, polyoxyethylene glycol; Perhaps comprise at least a in the glyceride type of oleic acid glycol ester, oleic acid macrogol ester.
3. a kind of spray method according to claim 1 and 2 is handled the method that static acid prepares leather fat, and it is characterized in that: the pressure range of described volume pump is at 0.2～2.0MPa.
4. a kind of spray method according to claim 3 is handled the method that static acid prepares leather fat, it is characterized in that: the ratio of described organic materials flow and static acid amount is: 0.5～10.0: 1.
5. a kind of spray method according to claim 4 is handled the method that static acid prepares leather fat, it is characterized in that: described alkali is at least a in sodium hydroxide, ammonium hydroxide, monoethanolamine, diethanolamine, the trolamine.
6. a kind of spray method according to claim 5 is handled the method that static acid prepare leather fat, it is characterized in that: the dosage of described hydrogen peroxide be in 1.0～15: 1 of inventory.
7. a kind of spray method according to claim 6 is handled the method that static acid prepares leather fat, and it is characterized in that: described bleaching temperature is 50～80 ℃.
8. a kind of spray method according to claim 7 is handled the method that static acid prepares leather fat, and it is characterized in that: described bleaching time is 1.0～24.0 hours.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102802225A CN101956028A (en) | 2010-09-09 | 2010-09-09 | Method for preparing leather fat liquor by treating electrostatic acids by spraying method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102802225A CN101956028A (en) | 2010-09-09 | 2010-09-09 | Method for preparing leather fat liquor by treating electrostatic acids by spraying method |
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| CN101956028A true CN101956028A (en) | 2011-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010102802225A Pending CN101956028A (en) | 2010-09-09 | 2010-09-09 | Method for preparing leather fat liquor by treating electrostatic acids by spraying method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103548824A (en) * | 2013-11-11 | 2014-02-05 | 浙江赞宇科技股份有限公司 | Method for preparing pesticide adjuvant by using electrostatic defogging liquid for producing AES (Alcohol Ether Sulfate) |
| CN103739226A (en) * | 2013-12-16 | 2014-04-23 | 浙江赞宇科技股份有限公司 | Method for preparing cement additive by using AES sulfonated electrostatic demisting waste liquid |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5853427A (en) * | 1995-07-12 | 1998-12-29 | The United States Of America As Represented By The Secretary Of Agriculture | Use of polymerizable oil for leather fatliquor |
| CN101686906A (en) * | 2007-03-06 | 2010-03-31 | 彼得·格里温·霍舒茨有限公司 | Skin cleansing agent |
| CN101691619A (en) * | 2009-10-19 | 2010-04-07 | 浙江赞宇科技股份有限公司 | Method for preparing leather fatliquoring agent |
-
2010
- 2010-09-09 CN CN2010102802225A patent/CN101956028A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5853427A (en) * | 1995-07-12 | 1998-12-29 | The United States Of America As Represented By The Secretary Of Agriculture | Use of polymerizable oil for leather fatliquor |
| CN101686906A (en) * | 2007-03-06 | 2010-03-31 | 彼得·格里温·霍舒茨有限公司 | Skin cleansing agent |
| CN101691619A (en) * | 2009-10-19 | 2010-04-07 | 浙江赞宇科技股份有限公司 | Method for preparing leather fatliquoring agent |
Non-Patent Citations (1)
| Title |
|---|
| 王小泉: "喷雾法合成石油磺酸盐", 《中国优秀博硕士学位论文全文数据库 (博士) 工程科技Ⅰ辑（月刊）》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103548824A (en) * | 2013-11-11 | 2014-02-05 | 浙江赞宇科技股份有限公司 | Method for preparing pesticide adjuvant by using electrostatic defogging liquid for producing AES (Alcohol Ether Sulfate) |
| CN103548824B (en) * | 2013-11-11 | 2015-09-09 | 浙江赞宇科技股份有限公司 | The electrostatic producing AES is adopted to remove the method that spray film makes insecticides adjuvant |
| CN103739226A (en) * | 2013-12-16 | 2014-04-23 | 浙江赞宇科技股份有限公司 | Method for preparing cement additive by using AES sulfonated electrostatic demisting waste liquid |
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Application publication date: 20110126 |