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Preparation method of nickel-based hydrogenation catalyst for unsaturated oils and fats

A technology of oil hydrogenation and catalyst, which is applied in the direction of fatty acid hydrogenation, chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, etc., can solve the problems of reduced catalyst activity and different grain sizes, and achieve Improve color, high catalytic activity, beneficial to industrial production

Inactive Publication Date: 2014-12-10
山东巨业精细化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Nickel salt is added to the precipitant, and the precipitation is carried out under the condition of pH change, and the grain size is different, which reduces the catalyst activity

Method used

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  • Preparation method of nickel-based hydrogenation catalyst for unsaturated oils and fats
  • Preparation method of nickel-based hydrogenation catalyst for unsaturated oils and fats

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] (1) Take 380gNiCl 2 ·6H 2 O, 37gMgCl 2 ·6H 2 Add 1500ml of deionized water to O and stir until completely dissolved.

[0034] (2) Take 182g NaCO 3 , 42.5gNaSiO 3 ·5H 2 O, 6.6g NaAlO 2 Add 1500ml of deionized water and stir until completely dissolved.

[0035] (3) Add 2500ml of deionized water and 4.0g of polyethylene glycol with a molecular weight of 2000 in the reaction kettle. Start stirring and heat the reactor. When the reaction temperature reaches 95° C., add the solutions of step (1) and step (2) in parallel for 1.5 hours.

[0036] (4) After feeding, adjust the pH of the material in the reactor to 7.5-8.5, and continue to stir for 3 hours at the pH value and temperature of 95° C. to obtain the precursor material.

[0037] (5) Filter the precursor material obtained in step (4), wash the filter cake with deionized water until there is no chloride ion, then dry at 100-120° C. for 5 hours, and pulverize to less than 100 mesh to obtain a catalyst precursor.

...

Embodiment 2

[0042] Refer to Example 1.

[0043] (1) Take 380gNiCl 2 ·6H 2 O, 24.5gMgCl 2 ·6H 2 Add 1500ml of deionized water to O and stir until completely dissolved.

[0044](2) Take 182g NaCO 3 , 34gNaSiO 3 ·5H 2 O, 7.3g NaAlO 2 Add 1500ml of deionized water and stir until completely dissolved.

[0045] Except that the hardened oil added in (6) is 315g, steps (3)-(6) are identical with embodiment 1.

Embodiment 3

[0047] Reference Example 1

[0048] (1) 380gNiCl 2 ·6H 2 O, 46gMgCl 2 ·6H 2 Add 1500ml of deionized water to O and stir until completely dissolved.

[0049] (2) Take 180g NaCO 3 , 68gNaSiO 3 ·5H 2 O, 5.7g NaAlO 2 Add 1500ml of deionized water and stir until completely dissolved.

[0050] Except that the hardened oil added in (6) is 310g, steps (3)-(6) are identical with embodiment 1.

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Abstract

The invention discloses a preparation method of a hydrogenation catalyst for unsaturated oils and fats and belongs to the technical field of catalytic materials. The preparation method comprises the steps of taking nickel as an active ingredient, a magnesium salt as an auxiliary and silicon oxide and aluminum oxide as carriers, adding polyethylene glycol to the system to arouse coprecipitation, next, performing roasting decomposition and hydrogen introducing reduction in nitrogen environment, and then adding the product to a hardened oil and stirring to be even, and cooling, solidifying and pelletizing to obtain the catalyst. The preparation method of the catalyst is simple and high in catalytic activity.

Description

technical field [0001] The invention relates to a preparation method of an unsaturated oil hydrogenation catalyst, in particular to a preparation method of a nickel-based oil hydrogenation catalyst, and belongs to the technical field of catalytic materials. Background technique [0002] Hydrogenation of unsaturated oils refers to the process of adding unsaturated animal and vegetable oils with hydrogen under the action of a catalyst to saturate the double bonds or triple bonds contained in the oil molecules. Its function is to reduce the degree of unsaturation of oil, increase the melting point, increase the content of solid fat; improve the stability of oil to oxygen and heat; improve the color, aroma and flavor of oil. [0003] At present, the catalysts for oil hydrogenation are mainly nickel-based catalysts. Chinese patent CN201310472517.6 "Preparation method of unsaturated oil hydrogenation catalyst" provides a preparation method of unsaturated oil hydrogenation catalys...

Claims

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Application Information

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IPC IPC(8): B01J23/755C11C3/12
Inventor 高鑫王国德游涛
Owner 山东巨业精细化工有限公司
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