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首页> 外文期刊>Separation and Purification Technology >Variation of peroxide value in water-degummed and alkali-refined soy oil during bleaching under vacuum
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Variation of peroxide value in water-degummed and alkali-refined soy oil during bleaching under vacuum

机译：真空漂白过程中水脱胶和碱精制豆油中过氧化物值的变化

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摘要

Variation of peroxide value in water-degummed and alkali-refined soy oil during bleaching using regenerated clay under vacuum was investigated in this study.Experimental results indicated that the rate of reduction of dimensionless peroxide value increased with an increase of ratio of clay/oil or bleaching temperature.The rate could also be increased by decreasing bleaching pressure,particle size of clay or water content of clay.Initial peroxide value and agitation speed,however,were found to have no influence on the reduction rate.Furthermore,an empirical relationship between dimensionless peroxide value and bleaching time was determined.Regenerated clay produced in this work was found to be more efficient than activated clay in reducing peroxides.
机译：研究了在真空条件下使用再生黏土进行漂白后的脱胶水和碱精制豆油中过氧化物值的变化。实验结果表明，随着黏土/油比的增加，无量纲过氧化物值的降低率增加。降低漂白压力，增加粘土的粒径或增加粘土的含水量也可以提高该速率。然而，发现初始过氧化物值和搅拌速度对还原速率没有影响。此外，两者之间的经验关系确定了无量纲的过氧化物值和漂白时间。发现在这项工作中产生的再生粘土在还原过氧化物方面比活性粘土更有效。

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