Preparation method of vegetable oil degummed zeolite

A technology of oil degumming zeolite and vegetable oil, which is applied in the field of vegetable oil refining, can solve the problems of high cost and low adsorption effect, and achieve the effect of low cost, simple preparation method and good adsorption capacity

Inactive Publication Date: 2017-01-04
YUNNAN NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Patent CN102247822B describes a kind of oil refining degumming soil and its preparation method, the degumming soil degumming effect is good, but the cost is relatively high
Zeolite is a silicate mineral with developed pores, strong adsorption capacity, and low price. It can be used as an adsorbent, desiccant, catalyst, etc.; it has a certain adsorption effect on phospholipids and other colloids, but the adsorption effect is low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Mix zeolite with a particle size of 200 mesh and citric acid solution with a mass concentration of 20% of 1 times the mass of zeolite to form a suspension, and place it in a water bath at 50°C for 2 hours at a stirring speed of 250r / min. The impregnated zeolite was placed in a blast drying oven, dried at 80°C for 4 hours, taken out and placed in a drying dish to cool. Then it is crushed to 200 mesh to obtain vegetable oil degummed zeolite.

Embodiment 2

[0019] Mix zeolite with a particle size of 100 mesh and phosphoric acid solution with a mass concentration twice that of zeolite and 10% to form a suspension, and place it in a water bath at 60°C for 1 hour at a stirring speed of 400r / min. The impregnated zeolite was placed in a blast drying oven, dried at a temperature of 100°C for 2 hours, taken out and placed in a drying dish to cool. Then it is crushed to 200 mesh to obtain vegetable oil degummed zeolite.

Embodiment 3

[0021] Mix zeolite with a particle size of 400 mesh and tartaric acid solution whose mass is 3 times that of zeolite and has a mass concentration of 7% to form a suspension, and place it in a water bath at 40 °C for 3 hours at a stirring speed of 150 r / min. The impregnated zeolite was placed in a blast drying oven, dried at a temperature of 70°C for 5 hours, taken out and placed in a drying dish to cool. Then it is crushed to 200 mesh to obtain vegetable oil degummed zeolite.

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Abstract

The invention relates to a preparation method of vegetable oil degummed zeolite. The method is characterized in that the vegetable oil degummed zeolite is prepared with zeolite and one or more of phosphoric acid, citric acid, oxalic acid and tartaric acid as the raw materials, the method includes the specific steps of firstly, mixing zeolite with granularity of 100 mesh to 400 mesh with a water solution of one or more of phosphoric acid, citric acid, oxalic acid and tartaric acid with mass being 0.25-5 times that of zeolite and mass concentration being 5-40% to prepare a suspension, and conducting water bath for 1-4 h at the stirring revolution of 100-500 r / min in a water bath pot at 40-70 DEG C; secondly, putting soaked zeolite in an air dry oven to be dried for 1-5 h at 40-100 DEG C, taking out zeolite, putting the zeolite in a drying vessel to be cooled, and smashing the zeolite into 200 mesh to prepare the vegetable oil degummed zeolite. Non-hydratable phospholipids in vegetable oil can be converted into hydratable phospholipids through the degummed zeolite, and the zeolite has good adsorption capacity for hydratable phospholipids and can effectively remove phospholipids and other colloidal substances in vegetable oil.

Description

technical field [0001] The invention relates to a preparation method of vegetable oil degumming zeolite, which belongs to the field of vegetable oil refining. Background technique [0002] Vegetable crude oil extracted by pressing or leaching technology contains a certain amount of colloidal substances, mainly phospholipids, which affect the quality of vegetable oil and the effect of subsequent refining. Therefore, degumming is necessary during the vegetable oil refining process. The current degumming methods mainly include hydration degumming, acid degumming, enzymatic degumming and membrane degumming. Hydration degumming is to add a certain amount of water or electrolyte solution to the crude oil, so that the hydrated phospholipids in it absorb water to swell and coagulate, and at the same time absorb other colloids to form micelles to precipitate and realize degumming; this method can only remove hydrated phospholipids . Acid degumming is to add a certain amount of aci...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B3/00C11B3/10
CPCC11B3/00C11B3/10
Inventor 陈玉保杨顺平高燕妮张少朋郝亚杰苏林尹芳赵兴玲
Owner YUNNAN NORMAL UNIV
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