CN100475977C - Method of preparing new type sulfonation leather fattening agent by gaseous phase method - Google Patents
Method of preparing new type sulfonation leather fattening agent by gaseous phase method Download PDFInfo
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- CN100475977C CN100475977C CNB2005100506480A CN200510050648A CN100475977C CN 100475977 C CN100475977 C CN 100475977C CN B2005100506480 A CNB2005100506480 A CN B2005100506480A CN 200510050648 A CN200510050648 A CN 200510050648A CN 100475977 C CN100475977 C CN 100475977C
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Abstract
A process for preparing the sulfonated currying agent of leather by gas-phase method includes such steps as providing acidified nigre oil and concentrated soybean phosphatide, ester exchanging reaction to obtain mixed ester of fatty acid, sulfonating reaction by SO3-gas membrane-type sulfonation method to obtain the sulfonated mixed ester of fatty acid, decoloring, neutralizing to obtain brown-red oily liquid, and mixing it with surfactant and other oil.
Description
Technical field
The present invention relates to a kind of preparation technology of leather chemical industry auxiliary agent, especially the soap stock acidifying oil with low grade is raw material, adopts SO
3The gas phase xanthation legal system is equipped with the sulfonation series products, and then is re-dubbed the method for novel sulfonated class leather fat.
Background technology
The leather output of China occupies first place in the world, thereby the usage quantity of the required fatting agent of processing leather is also very surprising.And in the domestic leather fat product with stability not good enough-C-O-S-key sulfuric acid ester type material is in the majority, the product color depth, highly seasoned, inorganic salt content is high, stability and homogeneity are poor, thereby only can be as low-grade leather fat.And production technique also causes severe contamination and destruction to ecotope.
Soap stock acidifying oil is the byproduct of oil and fat refining, and its chemical nature is the mixture of grease and free fatty acids (weight ratio is about 1: 1).Along with China popularizes salad oil, haute cuisine oil, soap stock acidifying oil quantity greatly increases in recent years, and its quantity is more than 200,000 tons/year.At present, the main application of China's soap stock acidifying oil is to produce lipid acid, is about to that the further hydrolysis or by saponification of soap stock acidifying oil---acidization makes grease wherein all be transformed into lipid acid, handles obtain fatty acid through distillation (or fractionation).This method is applied mechanically the easy contaminate environment of soda acid repeatedly, thereby unreasonable; The soap stock acidifying oil of enormous amount also needs to seek and open up new application approach.
In addition, concentrating soya lecithin is the good leather fat of generally acknowledging, but because of reasons such as its solvability, perviousness, can't use as the leather fat base-material.
Summary of the invention
Technical problem to be solved by this invention is the deficiency that overcomes the above-mentioned background technology; improving one's methods of a kind of production sulfonation class leather fat is provided; so that reduce the production cost of leather fat, and resourceful soap stock acidifying oil be fully used, can protect environment better again.
Technical scheme provided by the invention is: the method for method of preparing new type sulfonation leather fattening agent by gaseous phase, carry out successively according to the following steps:
One, esterification prepares soap stock acidifying fatty acid oil mixed ester:
Soap stock acidifying oil is carried out esterification with low-carbon alcohol, soap stock acidifying oil is 1 with the weight ratio of low-carbon alcohol: 0.2-0.5, with the vitriol oil is catalyzer, its consumption is the 1-3% of soap stock acidifying weight of oil, temperature of reaction 65-120 ℃, dewaters return time 4-8 hour, to acid value less than 4, after reclaiming alcohol, through processing such as washing, drying, decolouring, filtrations, promptly get acidifying fatty acid oil mixed ester again;
Two, sulfonation: adopt SO
3Gas phase membrane type sulfonation method carries out sulfonation, and the temperature that acidifying fatty acid oil mixed ester enters sulfonation reaction device is 20～40 ℃, and xanthator chuck water temperature is 30～98 ℃, SO
3Flow is 0.5～5m
3/ h, the protection wind flow is 0.1～1m
3/ h makes the SO of sulfonated product
3Binding capacity is between 2～7%;
Three, decolouring: above-mentioned sulfonated product is adopted hydrogen peroxide or sodium bisulfite or vat powder decolouring, and the discoloring agent consumption is 1～20% of a sulfonated products weight, and bleaching temperature is 30～80 ℃, and bleaching time is 10～120 minutes;
Four, neutralization: neutralizing agent is selected sodium hydroxide or potassium hydroxide or ammoniacal liquor or trolamine for use, the sulfonated product after the decolouring is neutralized to the pH value is 4-9;
Five, composite: that resulting sulfonated product and alkylsulphonic acid ammonium or Viscotrol C sulphosuccinates or alkyl sulfamoyl sodium acetate and synthetic neat's foot oil or chlorination lard or natural fats and oils is composite.
Described low-carbon alcohol adopts methyl alcohol, ethanol, propyl alcohol or butanols.
Also can in acidifying fatty acid oil mixed ester, allocate the liquefaction concentrating soya lecithin that weight ratio is 5-50% into before the sulfonation, as the sulfonation raw material.
The concentrating soya lecithin liquifying method is:
Concentrating soya lecithin is dissolved in fatty acid methyl ester, makes its viscosity at 30-100MPa.S, the weight ratio of concentrating soya lecithin and fatty acid methyl ester is 1: 0.2-2.
Or be 1 by weight with concentrating soya lecithin and methyl alcohol: 0.2-4 mixes mutually, with acid as catalyst, is heated to and boils and backflows that dewater, and makes the concentrating soya lecithin partial alcoholysis, promptly gets the concentrating soya lecithin that liquefies behind the recovery methyl alcohol.
The present invention adopts resourceful cheap oil refining byproduct soap stock acidifying oil and concentrating soya lecithin as raw material, becomes fatty acid mixed ester-also be the mixture of fatty acid methyl ester and glycerine one, two, three esters, employing SO by the transesterify modification
3The gas phase xanthation method is carried out sulfonation reaction, make the good new oil base sulfonation class leather fat of emulsifying property through decolouring, neutralizing treatment again, and be base-material with this sulfonated bodies, two composite products have been researched and developed, on probation through the user, consistent this product that reflects is high-grade leather fat, and is good with the plentiful softness of the leather hand feeling of its processing, fillibility.The present invention finds a new way of increasing the benefit, rationally utilizing for soap stock acidifying oil; also found a kind of abundant low-cost resource for leather fat; not only can reduce production costs greatly; strengthen its market competitiveness; and because little, thereby help the protection of ecotope to environmental influence.In addition, the method with concentrated soybean phospholipid liquefaction that the present invention adopts owing to solved solvability, permeability problems, is successfully used it as the leather fat base-material, obviously improved the quality and the class of leather fat.
Embodiment
Technological process of the present invention is represented by accompanying drawing.
The present invention prepares after esterification is soap stock acidifying fatty acid oil mixed ester-also be the mixture of fatty acid methyl ester and glycerine one, two, three esters.Specifically at soap stock acidifying oil with low-carbon alcohol (methyl alcohol, ethanol, propyl alcohol or butanols) when carrying out esterification, soap stock acidifying oil is defined as 1 with the weight ratio of low-carbon alcohol: 0.2-0.5, and be catalyzer with the vitriol oil, its consumption is the 1-3% of soap stock acidifying weight of oil, temperature of reaction 65-120 ℃, time 4-8 hour, to acid value less than 4, after reclaiming alcohol, again through processing such as washing, drying, decolouring, filtrations, promptly get acidifying fatty acid oil mixed ester, its chemical constitution is the mixture of fatty acid methyl ester and glycerine one, two, three esters.
The present invention in and the time selected neutralizing agent kind and pH value size, different by the department of use p-sulfonic acid salt kind and the requirement of pH value determine to select for use sodium hydroxide or potassium hydroxide or ammoniacal liquor or trolamine.
The present invention adopts conventional hydrogen peroxide or sodium bisulfite or vat powder decoloring method when decolouring, can be according to the requirement of product color and the colourity decision of sulfonated bodies.The discoloring agent consumption is 1～20% of a grease sulfonated bodies weight, and bleaching temperature is 30～80 ℃, and bleaching time is 10～120 minutes.
The prepared ester class of the present invention sulfonated bodies, color is reddish-brown, SO
3Binding capacity is 3～7%, and HLB value scope is 8～16, product oleaginousness 70～77%, 1% pH value of water solution 4-9, and 1: 9 aqueous solution 24 hours is oil slick not.
The present invention is when composite, the amount doesn't matter nothing of ratio of sulfonated product and other tensio-active agents (as alkylsulphonic acid ammonium, Viscotrol C sulphosuccinates, alkyl sulfamoyl sodium acetate etc.) and other oils (as synthetic neat's foot oil, chlorination lard, natural fats and oils etc.) specifically limits, and can determine as required fully.
Existing concentrating soya lecithin exists solvability, permeability problems to the leather top layer owing to be ointment shape product when leather processing, it is bigger to use difficulty as the leather fat base-material.The present invention has carried out the sulfonation processing again, thereby has solved this problem effectively because concentrating soya lecithin has been carried out liquefaction processing.Among the present invention, concentrating soya lecithin liquefies with the methyl alcohol alcoholysis or is dissolved in after the fatty acid methyl ester, and flowability is increased, again through SO
3The gas phase membrane-type sulfonation is introduced the sulfonic group hydrophilic group in molecule, can improve hydrophile-lipophile balance value (HLB value) greatly, can make emulsifying property surface of good promoting agent through processing such as neutralization, decolourings again, becomes excellent leather fatting agent base-material.This technology comes from our patent of invention ZL98121585.8.
Technologies such as the backflow that dewaters of the present invention, recovery alcohol, washing, drying are common process.
The equal outsourcing of whole industrial chemicals of the present invention obtains.
Embodiment 1: with 500 gram rape oil soap stock acidifying oil and 100 gram methanol mixed, make catalyzer with 5 grams, 98% vitriol oil, temperature of reaction is 90 ℃, dewater and refluxed 6 hours, to acid value 3.2, through processing such as washing, drying, carclazyte decolouring, filtrations, gained rape oil soap stock acidifying fatty acid oil mixed ester adopts SO
3Gas phase membrane type sulfonation method carries out sulfonation reaction, and feeding temperature is 20 ℃, and sulfonation reaction device chuck water temperature is 80 ℃, SO
3Flow is 2.5m
3/ h, the protection wind flow is 0.1m
3/ h, sulfonated products is decoloured with hydrogen peroxide, and the hydrogen peroxide consumption is 3% of a sulfonated products amount, decolours 30-40 minute down at 40-60 ℃, is adjusted to pH 7-9 with the neutralization of 30% sodium hydroxide again, and the ester class sulfonated bodies tensio-active agent that obtains is reddish-brown liquid.Get 30 these products of gram, with 5 gram Viscotrol C sulphosuccinates, 10 gram chlorination lards, 30 gram rape oils and a part of water are re-dubbed the sulfonation leather fat with automatic emulsifying performance, obvious to the leather greasing effect, quick permeation is evenly distributed, and can make the skin softness, moistens, leather surface is smooth.
Embodiment 2: make rape oil soap stock acidifying fatty acid oil mixed ester with embodiment 1, other gets 50 gram concentrated soybean phospholipids and 50 gram oil extracted from rice husks fatty acid methyl esters are miscible, and the two mixing as raw material, is adopted SO
3Gas phase membrane type sulfonation method carries out sulfonation reaction, and feeding temperature is 20 ℃, and sulfonation reaction device chuck water temperature is 80 ℃, SO
3Flow is 1.5m
3/ h, the protection wind flow is 0.25m
3/ h, sulfonated products is decoloured with hydrogen peroxide, and the hydrogen peroxide consumption is the 15-20% of sulfonated products weight, decolours 30-50 minute down at 40-50 ℃, is adjusted to pH6-8 with the ammoniacal liquor neutralization again, promptly gets described sulfonated product.Get 30 these products of gram, be re-dubbed leather fat with 5 gram Viscotrol C sulphosuccinates, 10 gram chlorination lards, 20 gram synthetic neat's foot oils, when being applied to leather greasing, combine firmly with leather fiber, good hand feeling, softness, moisten, leather surface is smooth, has fabulous fillibility and grain sense.
Embodiment 3: 500 gram behenic acid carburetion and 200 gram butanols are mixed, make catalyzer with 10 grams, 98% vitriol oil, heating and controlled temperature are at 120-125 ℃, dewater and refluxed 8 hours, to acid value 2.6, after washing, drying, carclazyte decolouring, filtration etc. are handled, make soybean oil soap stock acidifying fatty acid oil mixed ester.Other gets 50 gram concentrated soybean phospholipids and 50 gram oil extracted from rice husks fatty acid methyl esters are miscible, and the two mixing as raw material, is adopted SO
3Gas phase membrane type sulfonation method carries out sulfonation reaction, and feeding temperature is 20 ℃, and sulfonation reaction device chuck water temperature is 60 ℃, SO
3Flow is 2.0m
3/ h, the protection wind flow is 1.0m
3/ h, sulfonated products is decoloured with hydrogen peroxide, and the hydrogen peroxide consumption is the 15-20% of sulfonated products weight, decoloured 30-50 minute down at 50-60 ℃, be adjusted to about pH7 with the ammoniacal liquor neutralization, promptly get described sulfonated product, this sulfonated bodies has excellent leather stuffing performance.
Claims (3)
1, the method for method of preparing new type sulfonation leather fattening agent by gaseous phase is characterized in that this method carries out according to the following steps successively:
One, esterification prepares soap stock acidifying fatty acid oil mixed ester:
Soap stock acidifying oil is carried out esterification with low-carbon alcohol, soap stock acidifying oil is 1 with the weight ratio of low-carbon alcohol: 0.2-0.5, with the vitriol oil is catalyzer, its consumption is the 1-3% of soap stock acidifying weight of oil, temperature of reaction 65-120 ℃, and time 4-8 hour, to acid value less than 4, after reclaiming alcohol,, promptly get acidifying fatty acid oil mixed ester again through washing, drying, decolouring, filtration treatment;
Two, sulfonation: adopt SO
3Gas phase membrane type sulfonation method carries out sulfonation, and the temperature that acidifying fatty acid oil mixed ester enters sulfonation reaction device is 20～40 ℃, and xanthator chuck water temperature is 30～98 ℃, SO
3Flow is 0.5～5m
3/ h, the protection wind flow is 0.1～1m
3/ h makes the SO of sulfonated product
3Binding capacity is between 2～7%;
Three, decolouring: above-mentioned sulfonated product is adopted hydrogen peroxide or sodium bisulfite or vat powder decolouring, and the discoloring agent consumption is 1～20% of a sulfonated products weight, and bleaching temperature is 30～80 ℃, and bleaching time is 10～120 minutes;
Four, neutralization: neutralizing agent is selected sodium hydroxide or potassium hydroxide or ammoniacal liquor or trolamine for use, the sulfonated product after the decolouring is neutralized to the pH value is 4-9;
Five, composite: that resulting sulfonated product and alkylsulphonic acid ammonium or Viscotrol C sulphosuccinates or alkyl sulfamoyl sodium acetate and synthetic neat's foot oil or chlorination lard or natural fats and oils is composite.
2, the method for method of preparing new type sulfonation leather fattening agent by gaseous phase according to claim 1 is characterized in that described low-carbon alcohol adopts methyl alcohol, ethanol, propyl alcohol or butanols.
3, the method for method of preparing new type sulfonation leather fattening agent by gaseous phase according to claim 1 is characterized in that also allocating the liquefaction concentrating soya lecithin that weight ratio is 5-50% into before the sulfonation in acidifying fatty acid oil mixed ester, as the sulfonation raw material.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100506480A CN100475977C (en) | 2005-07-08 | 2005-07-08 | Method of preparing new type sulfonation leather fattening agent by gaseous phase method |
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| CNB2005100506480A CN100475977C (en) | 2005-07-08 | 2005-07-08 | Method of preparing new type sulfonation leather fattening agent by gaseous phase method |
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| CN100475977C true CN100475977C (en) | 2009-04-08 |
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Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100402669C (en) * | 2006-08-11 | 2008-07-16 | 温州大学 | Preparation method of sulphonating succinate ester disodium salt combined leather currying agent |
| CN101445418B (en) * | 2008-12-28 | 2011-07-06 | 浙江赞宇科技股份有限公司 | Gas phase SO3 film-scrapping sulfonating technology |
| CN102190606B (en) * | 2010-03-19 | 2014-03-12 | 广州市浪奇实业股份有限公司 | Preparation method of novel sulfonated grease |
| CN101845525B (en) * | 2010-06-09 | 2014-10-29 | 齐河力厚化工有限公司 | Natural phospholipid compound greasing agent and preparation method thereof |
| CN105296688B (en) * | 2015-11-16 | 2018-04-17 | 浙江赞宇科技股份有限公司 | A kind of preparation method of leather fat |
| CN107419041A (en) * | 2017-08-09 | 2017-12-01 | 赞宇科技集团股份有限公司 | A kind of leather fat of resistance to light type and its production technology |
| CN107326125B (en) * | 2017-08-09 | 2020-04-17 | 赞宇科技集团股份有限公司 | Antibacterial leather fatting agent and production process thereof |
| CN107881267B (en) * | 2017-11-06 | 2020-04-17 | 陕西科技大学 | Succinate sulfonated pricklyash seed oil/nano hydrotalcite composite flame-retardant fat-liquoring agent and preparation method thereof |
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Address after: Hangzhou City, Zhejiang province 310009 City Shangcheng District No. 128 Lane Patentee after: Praise Technology Group Limited by Share Ltd Address before: Hangzhou City, Zhejiang province 310009 City Shangcheng District No. 128 Lane Patentee before: Zhejiang Zanyu Technology Co., Ltd. |
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Granted publication date: 20090408 Termination date: 20170708 |
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