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Hardened fat and method of preparing the same

A technology for hydrogenating oil and vegetable oil, applied in the field of chemical industry, can solve the problems of poor toughness and adhesion, high preparation cost, low hardness of hydrogenated soybean oil, etc., to enhance market competitiveness, simple production operation, flexible raw materials cost effect

Inactive Publication Date: 2008-01-23
EAST CHINA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Using a single oil to produce hydrogenated oil, due to the inherent defects of the raw material itself, there are some defects in the hydrogenated oil produced after hydrogenation, such as: the melting point of palm oil is not high and sticky before hydrogenation, although the melting point and hardness after hydrogenation It has been greatly improved, but its toughness and adhesion are still not good. The specific performance is that the product is hard and brittle, and the formability is not good; another example is soybean oil, which has a very low melting point before hydrogenation. It has been greatly improved but still does not meet the practical requirements, and hydrogenated soybean oil also has disadvantages such as low hardness and high preparation cost.

Method used

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Examples

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preparation example Construction

[0026] A kind of preparation method of hydrogenated oil and fat of the present invention, i.e. animal and vegetable wax, its processing step is:

[0027] 1. Mix the raw materials, take two or more vegetable oils and animal oils as raw materials, make the sum of the proportions reach 100%, then put them into the high-pressure reaction kettle, close the lid of the kettle, and stir at 650-1500rpm Fully mixed in the state;

[0028] 2. Add the catalyst, after the raw materials are fully mixed, add the copper-nickel binary catalyst, then fully stir and mix;

[0029] 3. Evacuate the hydrogenation system, after the raw materials and catalysts are fully stirred and mixed, vacuumize the reactor to 9.48×10 4 The vacuum degree of Pa, and then fill the reactor with 0.3-0.5Mpa nitrogen gas, release the pressure of the vent to 0.15MPa and continue to vacuumize to 9.48×10 4 The vacuum degree of Pa, maintain the vacuum state of the reactor after evacuation;

[0030] 4. To raise the temperat...

Embodiment 1

[0034] Adopting palm oil and soybean oil as raw materials, mixing according to the ratio of 1:1, so that the sum of the ratios reaches 100%;

[0035] Its technological condition in preparation method is:

[0036] The stirring speed is 650-1000rpm, the amount of copper-nickel binary catalyst is 0.03-0.5% of the total amount of raw materials, the reaction temperature is 180-240°C, the pressure is 0.3-2Mpa, and the reaction time is 60-90 minutes (min).

[0037] The performance index of the product is:

[0038] Freezing point / ℃

Embodiment 2

[0040] Using palm oil, soybean oil and tallow as raw materials, mixing according to the ratio of 1:1:1, so that the sum of the ratios reaches 100%;

[0041] Its technological condition in preparation method is:

[0042] The stirring speed is 650-1500rpm, the amount of copper-nickel binary catalyst is 0.03-1% of the total amount of raw materials, the reaction temperature is 170-220°C, the pressure is 0.3-2Mpa, and the reaction time is 45-90 minutes (min).

[0043] The performance index of the product is:

[0044] Freezing point / ℃

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Abstract

The invention relates to a hydrogenated oil and fat, which is an animal and plant wax. The invention adopts two or more raw materials of palm oil, soybean oil, cottonseed oil, peanut oil, rapeseed oil, sesame oil, olive oil, corn oil, rice bran oil, coconut oil, cacao oil, sunflower seed oil, etc. plant oil and fat and beef tallow, sheep fat, pig fat, fish oil, etc. animal oil and fat. The raw materials are added with a copper-nickel binary catalyst and thoroughly mixed and then the hydrogenated oil and fat is prepared by a hydrogenation reaction when the mixture ratio reaches 100 per cent. The technique procedure of the preparation method is that: raw material mixture to adding catalyst to hydrogenation system vacuum pumping to hydrogenation system temperature rising to hydrogenation system hydrogen filling. The hydrogenated oil and fat of the invention has the good integrity performance of the high melting point, high hardness and high tenacity and strong adhesion; the invention has wide application, not only acts as a paraffin additive, but also as an animal and plant wax; the invention features the simpler operation, low manufacture cost and stronger market competition.

Description

【Technical field】 [0001] The invention relates to the technical field of chemistry and chemical engineering, in particular to a hydrogenated oil, ie, animal and vegetable wax, prepared by using two or more kinds of vegetable oil and animal oil and adding a copper-nickel binary catalyst, and a preparation method thereof. 【Background technique】 [0002] At present, the hydrogenated oils and fats produced at home and abroad are basically made from a single oil, such as palm oil, soybean oil or other single oils. For example, Chinese patent CN90108548.7 describes a reaction process of medium pressure hydrogenation alcohol production using coconut oil or palm oil as raw material. The specific preparation process is that coconut oil, or palm oil, is first reacted with methanol in the presence of alkali to generate methyl cocoate or methyl palmitoleate, and then hydrogenation alcohol catalyst is added. The hydrogenation reaction is carried out in the bed reactor to produce alcohol...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11C3/12
Inventor 张建雨吴俊岭唐芳珍吕全海胡景娜王文强
Owner EAST CHINA UNIV OF SCI & TECH
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