CN1472344A - Production of leather chemicals from natural oil and fat by SO3 gas phase sulfonation - Google Patents
Production of leather chemicals from natural oil and fat by SO3 gas phase sulfonation Download PDFInfo
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- CN1472344A CN1472344A CNA021363153A CN02136315A CN1472344A CN 1472344 A CN1472344 A CN 1472344A CN A021363153 A CNA021363153 A CN A021363153A CN 02136315 A CN02136315 A CN 02136315A CN 1472344 A CN1472344 A CN 1472344A
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- sulfonation
- oils
- grease
- natural fats
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Abstract
A process for preparing the sulfonated oil used for leather includes such steps as loading the natural oil into sulfonating reactor, SO3 gas-phase membrane-type sulfonating reacting at 20-80 deg.C, decoloring the resultant, and neutralizing. The resultant sulfonated oil can be used for currying leather with very high effect.
Description
Technical field
The invention belongs to the leather chemical industry technology of preparing, relate to natural fats and oils SO
3Gas phase xanthation is produced the method for New-type leather chemical.
Background technology
At present, the leather chemicals of using is produced for the sulphiting method more, and adopting hydrosulphite as prior art Chinese invention patent CN 1060107A is sulphonating agent, in the presence of catalyzer, emulsifying agent, bubbling air carries out the oxidation sulfited reaction of rape oil, obtains brown or the orange sulfonated vegetable oil.Because oxidising process is bigger to greasy structure deteriorate degree, the small molecules aldehyde that oxidation produced, ketone can produce unpleasant odor to leather, also owing to the diversity and the uncertainty of reflecting point, the homogeneity of product structure is poor simultaneously, causes product to be applicable in the low-grade leather processing.
Summary of the invention
The present invention is a raw material with natural fats and oils or by the natural fats and oils after the low-carbon alcohol modification, adopts SO
3The gas phase xanthation method is carried out sulfonation reaction, and to making the sulfonation grease after this sulfonated bodies decolouring, the neutralizing treatment.Existing relatively sulfited reaction technology, product emulsifying property of the present invention is good, smell is greatly improved even free from extraneous odour, electrolyte-resistant better performances, non-environmental-pollution.Can be mixed with good hand feeling softness, high-grade leather fat that fillibility is good.
Manufacture method provided by the invention is as follows:
1. natural fats and oils modification: grease is carried out the partial alcoholysis reaction with low-carbon alcohol, and wherein the weight ratio of grease and low-carbon alcohol is 1: 0.2～4, with alkali as a catalyst, be heated to and boil and dewater backflow, return time 1～6 hour makes the grease partial alcoholysis, promptly gets modified grease behind the recovery lower alcohol.
2. sulfonation:, adopt SO with natural fats and oils or by the natural fats and oils after the low-carbon alcohol modification
3Gas phase membrane type sulfonation method carries out sulfonation reaction, and the temperature that grease enters sulfonation reaction device is 20～80 ℃, and sulfonation reaction device chuck water temperature is 30～95 ℃, SO
3Flow is 0.5～5m
3/ h, the protection wind flow is 0.1～1m
3/ h makes the greasy SO of sulfonation
3Binding capacity is between 3～7%.
3. decolouring: look to the requirement of product color and the change of sulfonation condition, decolour before can adopting neutralization, or in and rear decoloring, or secondary decolourization before and after the neutralization, the hydrogen peroxide best results of using before the neutralization, consumption is 1～5% of a grease sulfonated bodies weight, in and rear decoloring adopt sodium bisulfite better, consumption is 1～5% of a grease sulfonated bodies weight.Bleaching temperature is 30～80 ℃, 1～60 minute time.
4. neutralization: neutralizing agent is selected sodium hydroxide or potassium hydroxide or ammoniacal liquor or trolamine for use, and being neutralized to the pH value is 4～9.Neutralizing agent kind and pH value size are by different the deciding of the department of use p-sulfonic acid salt kind and the requirement of pH value.
Through the sulfonation grease that above-mentioned technology makes, the color yellowish brown is to reddish-brown, SO
3Binding capacity and HLB value can be determined can determine in a narrower indication range by selecting to regulate process conditions in 3～7% and 8～16 scopes according to end-use, product oleaginousness 73～77%, 1% pH value of water solution 4～9,1: 9 aqueous solution 24 hours be oil slick not.
Example 1: with soya-bean oil is that raw material adopts SO
3Gas phase membrane type sulfonation method carries out sulfonation reaction, and the temperature that soya-bean oil enters sulfonation reaction device is 30 ℃, and sulfonation reaction device chuck water temperature is 70 ℃, SO
3Flow is 1.5m
3/ h, the protection wind flow is 0.5m
3/ h, sulfonated products is adjusted to pH value 5～7 with the ammoniacal liquor neutralization earlier, decolours with sodium bisulfite again, and the sodium bisulfite consumption is 1～2% of a sulfonated products amount, and decolouring down at 50～70 ℃ promptly got the described product of this patent in 30～60 minutes.This product appearance is the yellowish brown slime body, SO
3Binding capacity is 3.72%, and the HLB value is 10.Get 63 these products of gram, composite with 25 gram alkyl sulfamoyl sodium acetates, 12 gram synthetic neat's foot oils, can make that the plentiful fillibility of leather body is good, leather surface is smooth, the sulfonation leather fat of excellent property.
Example 2: with 500 gram rape oils and 51 gram methanol mixed, make catalyzer with sodium hydroxide, heating and controlled temperature reacts 1～3 hour at 60～70 ℃, promptly got modified vegetable oil after reclaiming unnecessary methyl alcohol and lower coarse glycerine, were raw material employing SO with the modified vegetable oil
3Gas phase membrane type sulfonation method carries out sulfonation reaction, and the temperature that modified vegetable oil enters sulfonation reaction device 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 earlier, and the hydrogen peroxide consumption is 1.5～3% of a sulfonated products amount, decolours 30～40 minutes down at 40～60 ℃, is adjusted to pH value 7～9 with the neutralization of 30% sodium hydroxide again and promptly gets the described product of this patent.This product appearance is a yellowish brown liquid, SO
3Binding capacity is 6.29%, and the HLB value is 16.Get 30 these products of gram, be re-dubbed sulfonation leather fat with 5 gram Viscotrol C sulphosuccinates, 10 gram chlorination lards, 30 gram rape oils and a part of water with automatic emulsifying performance, obvious to the leather greasing effect, quick permeation, be evenly distributed, can make the skin softness, moisten, leather surface is smooth.
Example 3: restrain fish oil and 100 with 500 and restrain the butanols mixing, make catalyzer with sodium hydroxide, heating and controlled temperature reacted 2～4 hours at 120～125 ℃, promptly got modification fish oil behind the recovery lower coarse glycerine, were raw material employing SO with modification fish oil
3Gas phase membrane type sulfonation method carries out sulfonation reaction, and the temperature that modification fish oil enters sulfonation reaction device 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 earlier, the hydrogen peroxide consumption is 1～2% of a sulfonated products amount, decoloured 20～30 minutes down at 30～50 ℃, be adjusted to pH value 6.5～7.5 with the ammoniacal liquor neutralization, decolour with sodium bisulfite, the sodium bisulfite consumption is 1～2% of a sulfonated products amount again, and decolouring down at 50～60 ℃ promptly got the described product of this patent in 30～60 minutes.This product appearance is a yellowish brown liquid, SO
3Binding capacity is 2.92%, and the HLB value is 8.Get 10 these products of gram, composite with 58 gram sulfonated soybean oils, 20 gram alkylsulphonic acid ammoniums, 12 gram synthetic neat's foot oils, can make strong oil feel, the good sulfonation leather fat of the leather plentiful fillibility of body.
Claims (5)
1. the natural fats and oils gas phase xanthation is produced the method for New-type leather chemical, it is characterized in that with natural fats and oils or by the natural fats and oils after the low-carbon alcohol modification, adopts SO
3The gas phase xanthation method is carried out sulfonation reaction, and the temperature that grease enters sulfonation reaction device is 20～80 ℃, and sulfonation reaction device chuck water temperature is 30～95 ℃, SO
3Flow is 0.5～5m
3/ h, the protection wind flow is 0.1～1m
3/ h, the sulfonated products of generation obtains the sulfonation grease again after decolouring and neutralizing treatment.
2. the method for New-type leather chemical is produced in natural fats and oils vapor phase process according to claim 1 sulfonation, it is characterized in that natural fats and oils adopts soya-bean oil, rape oil, fish oil, plam oil, and low-carbon alcohol adopts methyl alcohol, ethanol, propyl alcohol, butanols.
3. the method for New-type leather chemical is produced in natural fats and oils vapor phase process according to claim 1 sulfonation, it is characterized in that grease is carried out partial alcoholysis when reaction with low-carbon alcohol, the weight ratio of grease and low-carbon alcohol is 1: 0.2～4, with alkali as a catalyst, be heated to and boil and dewater backflow, return time 1～6 hour behind the recovery lower alcohol, promptly gets modified grease.
4. produce the method for New-type leather chemical according to claim 1 or 3 described natural fats and oils vapor phase process sulfonation, it is characterized in that selecting decolouring before the neutralization, or in and rear decoloring, or secondary decolourization before and after the neutralization, the discoloring agent that uses before the neutralization is hydrogen peroxide or clorox, consumption is 1～5% of a grease sulfonated bodies weight, in and rear decoloring adopt vat powder or sodium bisulfite or S-WAT, consumption is 1～5% of a grease sulfonated bodies weight.Bleaching temperature is 30～80 ℃, 1～60 minute time.
5. produce the method for New-type leather chemical according to claim 1 or 3 described natural fats and oils vapor phase process sulfonation, it is characterized in that neutralizing agent is sodium hydroxide or potassium hydroxide or ammoniacal liquor or trolamine, being neutralized to the pH value is 4～9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021363153A CN1472344A (en) | 2002-07-31 | 2002-07-31 | Production of leather chemicals from natural oil and fat by SO3 gas phase sulfonation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA021363153A CN1472344A (en) | 2002-07-31 | 2002-07-31 | Production of leather chemicals from natural oil and fat by SO3 gas phase sulfonation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1472344A true CN1472344A (en) | 2004-02-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA021363153A Pending CN1472344A (en) | 2002-07-31 | 2002-07-31 | Production of leather chemicals from natural oil and fat by SO3 gas phase sulfonation |
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| CN (1) | CN1472344A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102190606A (en) * | 2010-03-19 | 2011-09-21 | 广州市浪奇实业股份有限公司 | Preparation method of novel sulfonated grease |
| CN105154153A (en) * | 2015-07-02 | 2015-12-16 | 广州市增城新浪实业有限公司 | Water-based emulsified oil and preparation method thereof |
-
2002
- 2002-07-31 CN CNA021363153A patent/CN1472344A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102190606A (en) * | 2010-03-19 | 2011-09-21 | 广州市浪奇实业股份有限公司 | Preparation method of novel sulfonated grease |
| CN105154153A (en) * | 2015-07-02 | 2015-12-16 | 广州市增城新浪实业有限公司 | Water-based emulsified oil and preparation method thereof |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |