Method for refining cosmetic camellia oil by adopting short-path distillation

A short-path distillation, cosmetic-grade technology, applied in the direction of oil/fat refining, fat production, etc., can solve the problems of large loss of camellia oil, secondary pollution, and more oil wasted, and achieve the goal of reducing implementation costs and avoiding secondary pollution. Effect

Inactive Publication Date: 2010-06-02
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] (1) The loss of camellia oil is large, and one part of oil is lost for one part of acid removal, and more oil is lost
[0005] (2) Separating the neutralized substance (sodium soap) is usually separated by high-speed centrifug

Method used

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  • Method for refining cosmetic camellia oil by adopting short-path distillation
  • Method for refining cosmetic camellia oil by adopting short-path distillation
  • Method for refining cosmetic camellia oil by adopting short-path distillation

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0032] Example 1

[0033] (1) Weigh 10Kg of crude camellia oil oil for a certain time, and the measured acid value AV is 8mgKOH / g; directly enter the compressed camellia oil crude oil into buffer tank 1, and input it to the first-stage thin film evaporator 2 by the metering pump. Dehydration and degassing are carried out at a temperature of 80°C and a pressure of -0.9Mpa. After dehydration and degassing, the pressed camellia oil continues to enter the next short-path still for deacidification and separation.

[0034] (2) After dehydration and degassing, the pressed camellia oil is pumped into the second-stage short-path still 3 for deacidification and separation. The specific conditions are that the distillation temperature is 180℃ and the pressure is 20Pa. Sour camellia oil.

[0035] (3) The deacidified pressed camellia oil is pumped into the third-stage short-path still 4 for further deacidification and separation, and the specific conditions are that the distillation temperature...

Example Embodiment

[0037] Example 2

[0038] (1) Weigh 10Kg of camellia oil crude oil extracted by a solvent, and its measured acid value AV is 6mgKOH / g. The camellia oil extracted by the solvent enters buffer tank 1 directly, and is input to the first-stage thin film evaporator by a metering pump 2 Perform dehydration and degassing, specifically at a temperature of 120°C and a pressure of -0.8Mpa. After dehydration and degassing, the solvent extraction camellia oil continues to enter the next-stage short-path distiller for deacidification and separation.

[0039] (2) The solvent-extracted camellia oil after dehydration and degassing is pumped into the second-stage short-path distiller 3 for deacidification separation. The specific conditions are that the distillation temperature is 150℃ and the pressure is 1Pa. oil.

[0040] (3) The solvent extracted camellia oil after deacidification is pumped into the third-stage short-path still 4 for re-deacidification separation. The specific conditions are tha...

Example Embodiment

[0042] Example 3

[0043] (1) Weigh 10Kg of squeezed camellia oil from Hunan Hengyang Huiying Camellia Oil Factory, the measured acid value AV is 6.5mgKOH / g, and the camellia oil extracted by the solvent is directly fed into buffer tank 1 and input to the first stage by a metering pump The thin film evaporator 2 performs dehydration and deaeration, specifically, dehydration and deaeration at a temperature of 100° C. and a pressure of -0.85Mpa. After dehydration and degassing, the camellia oil extracted by the solvent continues to enter the next short-path distiller for deacidification and separation.

[0044] (2) The solvent extracted camellia oil after dehydration and degassing is pumped into the second-stage short-path still 3 for deacidification separation. The specific conditions are that the distillation temperature is 130℃ and the pressure is 5Pa. .

[0045] (3) The solvent extracted camellia oil after deacidification is pumped into the third-stage short-path distiller 4 for ...

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Abstract

The invention discloses a method for refining cosmetic camellia oil by adopting short-path distillation, which is characterized by adopting a first-stage film distillator and a second-stage short-path evaporator to carry out deacidification on crude camellia oil. In the step of first-stage film distillation, dehydration and removal of the substances with low boiling point are carried out, in the step of second-stage distillation, removal of free fatty oil is carried out on the camellia oil processed on the first stage and in the step of third-stage distillation, removal of free fatty oil is carried out on the camellia oil processed on the second stage. The three-stage distillation is carried out under the conditions of working temperatures controlled between 60 DEG C and 180 DEG C and the pressure between minus 0.6MPa and 0.1Pa, and oleic acid with high acid value and camellia oil with ultralow acid value are obtained. The process with high pollution of wastewater drained after soda soap washing and water washing in the chemical processes of alkali refining and neutralizing does not exist during processing the camellia oil. The flow is simple, the oleic acid with high value and the camellia oil with ultralow acid value are separated by distillation, the separation process is a physical process, and the camellia oil is free of loss, thus having very high yield.

Description

technical field [0001] The invention relates to a method for refining cosmetic-grade camellia oil by means of a short-path still. It specifically relates to a treatment method for separating high-quality camellia oil with ultra-low acid value by using short-distance distillation technology, which meets the national cosmetic grade low-acid value camellia oil standard; it belongs to the field of deep processing of natural products and agricultural by-product processing. Background technique [0002] Camellia oil is an important daily oil and industrial raw material. Such as figure 1 As shown, the current general method of deacidification of camellia oil is to use alkali to neutralize (called alkali refining) camellia oil crude oil and then make it by static sedimentation or centrifugal separation, water washing and standing still sedimentation or centrifugal separation and drying and dehydration again Deacidified camellia oil. [0003] Chinese invention patent application C...

Claims

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Application Information

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IPC IPC(8): C11B3/12
Inventor 朱宝璋朱力
Owner SOUTH CHINA UNIV OF TECH
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