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A kind of preparation method of modified camellia oil fatliquor for leather processing

An oil fatliquoring agent and camellia oil technology, which is applied in the preparation field of modified camellia oil fatliquoring agent, can solve the problems of few applications of carbon nanotubes and the like, achieve easy control of preparation process conditions, low equipment requirements, and improved resistance to Effect of Tensile Strength and Tear Strength

Active Publication Date: 2017-12-12
JIAXING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The unique structure of carbon nanotubes makes them have excellent electrical, thermal and mechanical properties, which makes them widely used in many fields, but at present, carbon nanotubes are rarely used in the leather industry

Method used

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  • A kind of preparation method of modified camellia oil fatliquor for leather processing

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A preparation method for a modified camellia oil fatliquoring agent for leather processing, comprising the following steps:

[0025] a. Take 850 parts by mass of camellia oil, 147 parts by mass of n-butanol and 3 parts by mass of catalyst into the reactor; react at 100-120°C for 2-3 hours, measure the hydroxyl value in the reaction system, and use the total amount of reactants Quantitatively, when the hydroxyl value ≥ 65mg KOH / g, the unreacted butanol was distilled off under reduced pressure.

[0026] b. Add 120 parts by mass of concentrated sulfuric acid dropwise to the reaction product. When adding the concentrated sulfuric acid, control the temperature to ≤30°C. After the dropwise addition, react at 35-40°C for 2-3 hours.

[0027] c. Add 1000 parts by mass of saturated saline to the reaction product, mix well, transfer to a separatory funnel and let stand for 4-6 hours.

[0028] d. Follow the above step c, carry out liquid separation treatment, neutralize the reacta...

Embodiment 2

[0036] A preparation method for a modified camellia oil fatliquoring agent for leather processing, comprising the following steps:

[0037] a. Add 900 parts by mass of camellia oil, 148 parts by mass of n-butanol and 7 parts by mass of catalyst into the reactor; Quantitatively, when the hydroxyl value ≥ 65mg KOH / g, the unreacted butanol was distilled off under reduced pressure.

[0038] b. Add 160 parts by mass of concentrated sulfuric acid dropwise to the reaction product. When adding the concentrated sulfuric acid, control the temperature to ≤30°C. After the dropwise addition, react at 35-40°C for 2-3 hours.

[0039] c. Add 1200 parts by mass of saturated saline to the reaction product, mix well, transfer to a separatory funnel and let stand for 6 hours.

[0040] d. Follow the above step c, carry out liquid separation treatment, neutralize the pH of the reactant to 7.0 with a mass concentration of 20% to 30% alkaline aqueous solution, and adjust the solid content of the pro...

Embodiment 3

[0048] A kind of preparation method of the modified camellia oil fatliquoring agent for leather processing is characterized in that, comprises the following steps:

[0049] a. Take 870 parts by mass of camellia oil, 102 parts by mass of n-butanol and 5 parts by mass of catalyst into the reactor; react at 100-120°C for 2-3 hours, measure the hydroxyl value in the reaction system, and use the total amount of reactants Quantitatively, when the hydroxyl value ≥ 65mg KOH / g, the unreacted butanol was distilled off under reduced pressure.

[0050] b. Add 135 parts by mass of concentrated sulfuric acid dropwise to the reaction product. When adding the concentrated sulfuric acid, control the temperature to ≤30°C. After the dropwise addition, react at 35-40°C for 2-3 hours.

[0051] c. Add 1100 parts by mass of saturated saline to the reaction product, mix well, transfer to a separatory funnel and let stand for 4-6 hours.

[0052] d. Follow the above step c, carry out liquid separation...

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Abstract

The invention relates to a preparation method for a modified camellia oil fatting agent for leather processing. The method comprises the following steps that a, 850-900 parts by mass of camellia oil, 74-148 parts by mass of n-butyl alcohol and 3-7 parts by mass of catalyzers are taken and added into a reactor; and b, reaction is carried out for 2-3 h at 100-120 DEG C, the hydroxyl value in a reaction system is measured, and by the total amount of reactants, when the hydroxyl value is greater than or equal to 65 mg KOH / g, butyl alcohol which is not fully reacted is removed through reduced pressure distillation.

Description

technical field [0001] The invention relates to the technical field of leather chemical production, in particular to a preparation method of a modified camellia oil fatliquor used in leather processing. Background technique [0002] Fatliquor is an important leather chemical in leather processing. Fatliquor can endow leather with plumpness and softness. However, the improvement of the tensile strength and tear strength of leather by fatliquor is generally not very obvious, so the development of new and high-performance leather fatliquor has become one of the research hotspots. [0003] Camellia oil is obtained from the seeds of the Camellia oleifera tree, which is one of the oldest woody edible vegetable oils in China. China is the country with the widest distribution of Camellia plants in the world and the largest production base of camellia oil in the world. At present, camellia oil and its supplementary products have been widely used in industries such as food, chemical ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C14C9/02
CPCC14C9/02
Inventor 洪新球俞力栋骆如慧吴伟潇
Owner JIAXING UNIV
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