CN104120198A - Method for manufacturing phenol tanning agents - Google Patents
Method for manufacturing phenol tanning agents Download PDFInfo
- Publication number
- CN104120198A CN104120198A CN201410342720.6A CN201410342720A CN104120198A CN 104120198 A CN104120198 A CN 104120198A CN 201410342720 A CN201410342720 A CN 201410342720A CN 104120198 A CN104120198 A CN 104120198A
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- Prior art keywords
- parts
- phenol
- tanning agents
- finished product
- urea
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- Treatment And Processing Of Natural Fur Or Leather (AREA)
Abstract
The invention provides a method for manufacturing phenol tanning agents. According to the method, the phenol tanning agents comprise, by weight, 236 parts of adipic acid, 236 parts of diethylene glycol, 210 parts of cyclohexanone, 108 parts of trimethylolpropane and 26 parts of xylene. The materials are put into a reaction tank, the reaction tank heats up to 210 DEG C step by step, the temperature is kept for five hours, after the acid value reaches 5.0mgKOH/g, heating is stopped, the temperature is reduced to be below 150 DEG C, solvents are added, even stirring is performed, filter liquor is extracted after filtering, and a finished product is obtained. The finished product has the oily tanning performance and can be used for retanning leather, and the tensile strength and the grain surface layer strength of the leather can be improved.
Description
Technical field
The present invention relates to the making method of tanning agent, be specifically related to a kind of making method of phenol tanning agent.
Background technology
Current tanning agent, can not be for retan due to the defect of raw material.
Summary of the invention
The making method that the object of this invention is to provide a kind of phenol tanning agent, solves one or more problem of the prior art.
According to an aspect of the present invention, provide a kind of making method of phenol tanning agent, comprise the raw material of following parts by weight: 236 parts of hexanodioic acids, 236 parts of diethylene glycols, 210 parts of pimelinketone, 108 parts of TriMethylolPropane(TMP)s, 26 parts of dimethylbenzene; Above-mentioned material is dropped into retort, be progressively warming up to 210 ℃, keep 5 hours, acid number reaches after 5.0mgKOH/g, stops heating, is cooled to below 150 ℃, adds solvent, stirs, and gets filtrate after filtration, makes finished product.
The making method of a kind of phenol tanning agent provided by the invention, the finished product of making has the performance of the tanning of oiling, can be used for retan, improves tensile strength and the grain layer intensity of leather.
Specific implementation method
The making method that the invention provides a kind of phenol tanning agent, comprises raw material: hexanodioic acid 236g, diethylene glycol 236g, pimelinketone 210g, TriMethylolPropane(TMP) 108g, dimethylbenzene 26g; Above-mentioned material is dropped into retort, be progressively warming up to 210 ℃, keep 5 hours, acid number reaches after 5.0mgKOH/g, stops heating, is cooled to below 150 ℃, adds solvent, stirs, and gets filtrate after filtration, makes finished product.
The making method of a kind of phenol tanning agent provided by the invention, the finished product of making has the performance of the tanning of oiling, can be used for retan, improves tensile strength and the grain layer intensity of leather.
More than statement is only optimal way of the present invention, it should be pointed out that to those skilled in the art, without departing from the concept of the premise of the invention, can also make some distortion and improvement, within these also should be considered as protection scope of the present invention.
Claims (1)
1. the making method of a phenol tanning agent, it is characterized in that, the sulfuric acid that the massfraction that is the phenol of 500 parts and 535 parts by parts by weight is 95%, at 110～115 ℃, react 2 hours, after product is cooled to 40 ℃, with aqueous solution of urea, processing, then with the agent of 470 parts of dimethylolurea slurries, under agitation react 3.5h in batches at 60 ℃, is to make finished product after 3.2 with NaOH solution adjusting PH, in described aqueous solution of urea, the weight of urea is 40 parts, and the massfraction of aqueous solution of urea is 20%～50%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410342720.6A CN104120198A (en) | 2014-07-17 | 2014-07-17 | Method for manufacturing phenol tanning agents |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410342720.6A CN104120198A (en) | 2014-07-17 | 2014-07-17 | Method for manufacturing phenol tanning agents |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104120198A true CN104120198A (en) | 2014-10-29 |
Family
ID=51765828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410342720.6A Pending CN104120198A (en) | 2014-07-17 | 2014-07-17 | Method for manufacturing phenol tanning agents |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104120198A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101096710A (en) * | 2006-06-30 | 2008-01-02 | 山东联合化工股份有限公司 | Preparation method of methylene dinaphthalene methylation phenolic resin tanning agent |
| WO2012133622A1 (en) * | 2011-03-31 | 2012-10-04 | ダイキン工業株式会社 | Composition containing fluorinated copolymer |
-
2014
- 2014-07-17 CN CN201410342720.6A patent/CN104120198A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101096710A (en) * | 2006-06-30 | 2008-01-02 | 山东联合化工股份有限公司 | Preparation method of methylene dinaphthalene methylation phenolic resin tanning agent |
| WO2012133622A1 (en) * | 2011-03-31 | 2012-10-04 | ダイキン工業株式会社 | Composition containing fluorinated copolymer |
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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 |
Application publication date: 20141029 |