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Method for manufacturing leather fattening agent

A leather fatliquoring agent and technology of manufacturing method, which are applied in leather impregnation, small raw hide/large raw hide/leather/fur treatment, small raw hide/large raw hide/leather hide/fur chemical treatment, etc. Application and other issues, to achieve the effect of low organic chlorine content

Inactive Publication Date: 2005-02-16
阮文娟
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The sulfonated oil commonly used in leather fatliquor is SO 3 Obtained by sulfonating oils with an average iodine value of about 100 ("China Leather" 2001, 30(11), 9-11, 1 "Application of sulfonation technology in the production of leather fatliquors. 5") Because of problems such as fluidity, this method is basically inapplicable to oils with lower average iodine value; as published by China Light Industry Press, published on January 15, 2001, "Preparation of Leather Chemicals-Theory and Practice" disclosed by 102-110 , the most common starting materials for the synthesis of phosphate esters are long-chain aliphatic alcohols and castor oil with hydroxyl groups in the molecule, which have relatively large limitations

Method used

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  • Method for manufacturing leather fattening agent
  • Method for manufacturing leather fattening agent
  • Method for manufacturing leather fattening agent

Examples

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Effect test

preparation example Construction

[0031] Preparation of sulfonated mixed oil: use the mixture containing vegetable oil, animal oil and lanolin as raw material, add hydrogen under the action of nickel, copper and other catalysts, the amount of catalyst is 0.05-0.4‰ of the mixture, the hydrogenation condition is that the hydrogen is in In the state of 0.2-0.3Mpa, the mixture is at 150-190°C and in the state of 0.4-0.7Mpa, and the hydrogenation process is carried out in a closed reactor. Finally, after sulfonation treatment, the sulfonated mixed oil is obtained. The sulfonation treatment is through the addition of sulfur trioxide, sulfonation reaction of unsaturated fatty acids (addition reaction of alkenes)

[0032]

[0033] Sulfonation of saturated long-chain fatty acids or esters:

[0034]

[0035] The reaction equation between esters of saturated fatty acids and sulfur trioxide:

[0036]

[0037]

[0038] hydrogenation time

Iodine value (IV%)

60min

120.6

120min

...

Embodiment 1

[0042] In the 500ml dry there-necked bottle, add to contain the mixture 300g of vegetable oil 150g, animal oil 100g and lanolin 50g (certainly, vegetable oil, animal oil and lanolin can also press containing vegetable oil 50-55%, animal oil 30-35%, lanolin 10- 20% other proportions), put into the reactor 0.2% active ingredient is copper molecular sieve catalyst solid particle, fully stir and mix, be warmed up to 150 ℃ and feed the hydrogen of 0.3MPa pressure, the control stirring speed is 90r / min. At this point, the hydrogenation reaction begins to proceed, and the reaction temperature and hydrogen pressure are adjusted. During the reaction process, the oil is continuously taken out to measure the iodine value, and the reaction is terminated when the iodine value reaches the expected requirement (iodine value IV%3 (SO 3 : air=4.5:95.5, volume ratio) continuous sulfonation to organically bound SO 3 The content is 5.8%, the sulfonation reaction is terminated, and then the pH va...

Embodiment 2

[0044]Add the mixture 300g that contains vegetable oil 150g, animal oil 100g and lanolin 50g in 500ml dry there-necked bottle % other proportions), put into the reactor 0.2% active ingredient is copper molecular sieve catalyst solid particle, fully stir and mix, be warmed up to 150 ℃ and feed the hydrogen of 0.3MPa pressure, the control stirring speed is 90r / min. At this point, the hydrogenation reaction begins to proceed, and the reaction temperature and hydrogen pressure are adjusted. During the reaction process, the oil is constantly taken out to measure the iodine value, and when the iodine value reaches the expected requirement (the iodine value (IV%3 (SO 3 : air=4.5:95.5, volume ratio) continuous sulfonation to organically bound SO 3 The content is 5.8%, the sulfonation reaction is terminated, and then the pH value is adjusted to 6.0 or 7.0 or 8.0 or 7.5 by adding 30% sodium hydroxide to obtain reddish brown transparent sulfonated oil.

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Abstract

The invention includes : A. preparation of sulfonation compound fat, put vegetable oil, animal oil and wool fat together, add hydrogen under catalyst reaction, after sulfonation treatment, and gain sulfonation compound fat; B. preparation of amphoteric phosphorated fat, add low carbon alcohol to ester change nature, add active hydrogen compounds, adding ester acidifying reagent gain anion phosphorated vegetable oil, adding cation reagent gain amphoteric phosphorated fat; C. mix sulfonation compound fat and amphoteric phosphorated fat and add additives to match leather greasing agent. Because compound fat's hydrogenation puts double bond to single bond, lows iodine number, fat not only is difficult to oxy peroxid by oxygen in the air, results chromic adding fat : in addition the invention of compound fat agent excludes chlorparaffins and is low of organochlorine, belonging to environment fat agent.

Description

technical field [0001] The invention relates to a method for manufacturing a leather processing aid, in particular to a method for manufacturing a leather fatliquoring agent. Background technique [0002] Fatliquor is one of the most used and essential leather chemical materials in leather production. It can lubricate the leather fiber, prevent the leather from being stiff and cracked, make the leather have the corresponding toughness and softness, and maintain its strength. The performance of the fatliquoring agent has an important influence on the quality and performance of the leather. With the development of the leather industry, higher requirements are put forward for the variety, quantity, performance and quality of leather fatliquor. The research, development and production of fatliquor are also moving towards high-quality, multi-functional and compound direction development. [0003] There are many low-grade fatliquor products currently used in China, while the pro...

Claims

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Application Information

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IPC IPC(8): C14C9/02
Inventor 阮文娟
Owner 阮文娟
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