Device and method for extracting V<E> (vitamin E) in enhanced manner by means of ultrasonically pre-treating deodorized and distilled products of plant oil

A technology of deodorizing distillate and ultrasonic pretreatment, applied in the fields of biofuel, organic chemistry, petroleum industry, etc., can solve the problem of long extraction time, and achieve the effect of shortening extraction time, continuous production and improving preparation efficiency

Active Publication Date: 2014-01-08
江苏禾丰粮油工业有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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  • Device and method for extracting V&lt;E&gt; (vitamin E) in enhanced manner by means of ultrasonically pre-treating deodorized and distilled products of plant oil

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Embodiment 1

[0025] Enhanced extraction of soybean oil deodorized distillate by ultrasonic pretreatment V E . exist figure 1 In transesterification reaction tank 1, KOH 1% (accounting for the amount of distillate) under alkali catalysis conditions, 35 ° C, alcohol-oil ratio (V / W) 8:1, stirring device 2 stirring 150 rpm, soybean oil deodorization distillate in 1 reaction in the transesterification reaction tank, the reaction mixture is pumped into the external circulation reactor 5 through the circulation pump 4, is ultrasonically strengthened and then continuously circulated and pumped into the transesterification reaction tank 1, the ultrasonic power is 300 W, and the ultrasonic frequency is 28 kHz. Pump at 4 speeds, and maintain sonication for 10 min. The soybean oil deodorized distillate through transesterification, after being further ultrasonically treated in the external ultrasonic reactor 5, is continuously pumped into the cold crystallization reaction tank 7 through the circulati...

Embodiment 2

[0027] Extraction of rapeseed oil deodorization distillate by ultrasonic pretreatment E ,Such as figure 1 As shown in the device, the conversion of deodorized distillate and ethanol to biodiesel under the condition of lipase catalysis was compared with that of ordinary non-ultrasonic enzymatic method. The reaction temperature of the deodorized distillate in the transesterification tank 1 is 60°C, the ratio of alcohol to oil (V / W) is 1:1, the amount of enzyme added is 10%, the stirrer device 2 is stirred at 150 rpm, and the reaction mixture in the transesterification tank 1 passes through The circulating pump 4 is pumped into the external circulating ultrasonic reactor 5 to be ultrasonically strengthened, and then pumped into the transesterification reaction tank 1 through the pump 4 to complete the transesterification reaction, and the ultrasonic reaction time is 180 min. The ultrasonic power is 300 W, and the ultrasonic frequency is 28 kHz. The rapeseed oil deodorization di...

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Abstract

The invention discloses a device and a method for extracting V<E> (vitamin E) in an enhanced manner by means of ultrasonically pre-treating deodorized and distilled products of plant oil, and relates to the field of extraction technologies for natural V<E>. The method includes steps of (1), ultrasonically pre-treating the deodorized and distilled products of the plant oil at low frequencies; (2), performing quick cold precipitation on sterol; (3), performing distillation separation. The external circulating serial connection device for extracting the V<E> in the enhanced manner by means of ultrasonically pre-treating the deodorized and distilled products is independent and is serially connected with an ester exchange reaction procedure for generating biodiesel and a cold precipitation crystallization procedure for the sterol of distilled products, so that different requirements of conversion or crystallization of deodorized products and the distilled products on environmental conditions can be met, the ether exchange conversion time can be shortened, reaction can be carried out continuously, and the usage of catalysts can be reduced. The device and the method have the advantages that the V<E> can be extracted in a separation manner by means of distillation separation; the solvents such as ethanol in an ether exchange reaction tank and a cold precipitation reaction tank can be recycled by an ethanol recycling/reusing device; a technology of the method is simple, the V<E> extraction time can be greatly shortened, and impurities can be reduced; the V<E> can be produced continuously, and sterol and biodiesel products with high quality can be acquired.

Description

technical field [0001] The present invention relates to natural V E Extract technology fields. In particular, it relates to an enhanced extraction of natural V by ultrasonic pretreatment of vegetable oil deodorization distillate E devices and methods. Background technique [0002] Oil deodorization is an important process in the vegetable oil refining process. Deodorization distillate is the distillate under high temperature and low pressure in the deodorization step of oil refining, with complex components, mainly free fatty acids, glycerides, V E , sterols and other oxidative decomposition products. About 20%-40% of vitamin E in crude oil remains in the deodorized distillate, making the deodorized distillate the best source of natural vitamin E. The deodorized distillate contains not only 2%-10% natural vitamin E, but also 5%-15% phytosterols, and most of the rest are free fatty acids (30%-50%) and neutral esters (20%-50%). 30%) and a small amount of oxide impurities...

Claims

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Application Information

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IPC IPC(8): C07D311/72C07J9/00C11C3/10C10L1/02
CPCY02E50/13C07D311/72C07J9/00C10L1/02C11C3/10Y02E50/10
Inventor 崔凤杰霍书豪孙文敬陈志蔚蔡兆培林琳邹彬钱静亚
Owner 江苏禾丰粮油工业有限公司
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