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Method for preparing hexadecanoic acid and oleic acid extracted from rice oil distillate

A technology for distillate and rice bran oil, applied in the field of oleic acid and palmitic acid preparation, can solve the problems of easy rancidity of rice bran, and achieve the effects of easy biodegradation, safe storage and transportation, and low production cost

Inactive Publication Date: 2012-06-13
湖南成成油化科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing rice bran is very easy to rancid during storage, so that the oil in the rice bran is decomposed into fatty acids

Method used

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  • Method for preparing hexadecanoic acid and oleic acid extracted from rice oil distillate
  • Method for preparing hexadecanoic acid and oleic acid extracted from rice oil distillate
  • Method for preparing hexadecanoic acid and oleic acid extracted from rice oil distillate

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Experimental program
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Effect test

Embodiment 1

[0022] A preparation method for extracting palmitic acid and oleic acid from rice bran oil distillate, which selects rice bran oil distillate as the main raw material, and makes the product through three-step methods such as impurity removal, and its steps are as follows:

[0023] Ⅰ. Process flow

[0024] Material selection - soap removal - fractionation - fractionation - finished product;

[0025] Ⅱ. Operation steps

[0026] ①Choose the waste rice bran oil distillate and add it to the soap removal tower, and remove the odor with water vapor film removal method;

[0027] The rice bran oil distillate after de-soaping enters the first fractionation tower, and palmitic acid is fractionated from the top of the tower;

[0028] The bottom material of the fractionation tower enters the second fractionation tower, and oleic acid is fractionated from the top of the tower; at the same time, the unsaponifiable matter and impurities are separated from the bottom of the second fracti...

Embodiment 2

[0031] A production method for extracting palmitic acid and oleic acid from rice bran oil distillate, the steps are as follows:

[0032] 1. Continuously inhale 100 parts of rice bran oil distillate into the desoaping tower with vacuum, and spray 0.2 parts of water vapor into the bottom of the desoaping tower when the temperature is raised to 120°C, so that the water vapor and the rice bran oil distillate are first contacted, and a small amount of odor is eliminated. Water vapor carried away.

[0033] 2. The rice bran oil distillate after de-soaping enters the first fractionation tower. When the vacuum in the fractionation tower is ∠2 mm, and the temperature in the tower is controlled at 195-230°C, 20 parts of palmitic acid with a content of 95% are discharged from the top of the tower. Fractionated out.

[0034] 3. The material in the tower kettle of the first fractionation tower enters the second fractionation tower, the vacuum degree in the tower is ∠2mm, and when the tempe...

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Abstract

The invention relates to a method for preparing hexadecanoic acid and oleic acid extracted from rice oil distillate, which adopts rice oil distillate as the main raw material and produces a finished product by three steps such as edulcoration, and the like. The method comprises the following steps of selection, saponin elimination, fractionation, fractionation and forming a finished product. The method adopts the technical scheme that the rice oil distillate is adopted as the main raw material to be directly added into a saponin eliminating tower without adding other chemicals, only a high-efficient fractionating tower is adopted, incision and fractionating on hexadecanoic acid, oleic acid, unsaponifiable substances and impurities are carried out to produce a product with multiple functions. The invention overcomes the defects of the traditional preparation method with the complex production technology, high energy consumption, severe pollution to environment and low product quality, and is suitable for producing hexadecanoic acid and oleic acid extracted from rice oil distillate.

Description

technical field [0001] The invention relates to a method for preparing palmitic acid and oleic acid, in particular to a method for extracting palmitic acid and oleic acid from rice bran oil distillation. Background technique [0002] The existing rice bran is very easy to go rancid during storage, so that the oil in the rice bran is decomposed into fatty acids. Therefore, the oil extracted from rice bran contains more fatty acids. To make rice bran oil meet edible standards, fatty acids are often removed by high-vacuum distillation. The distilled material contains 10-20% fatty acids in addition to 70-80% unsaponifiables and other impurities. The main components of fatty acids are palmitic acid and oleic acid. Therefore, removing unsaponifiable matter and impurities from rice bran oil distillate, extracting pure fatty acids, and separating fatty acids into palmitic acid and oleic acid is a comprehensive utilization resource. An effective way to turn waste into treasure. C...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C11C1/10C07C53/126C07C57/12C07C51/44
Inventor 何关印陈玉成
Owner 湖南成成油化科技股份有限公司
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