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| 超声-微波预处理含油废白土的工艺条件研究 |
| Ultrasound-microwave pretreatment of oily waste clay |
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| DOI： |
| 中文关键词: 亚麻籽油；废白土；超声-微波预处理 响应面法 回收率 |
| 英文关键词:flaxseed oil waste clay ultrasound-microwave pretreatment response surface methodology recovery rate |
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| 中文摘要: |
| 以亚麻籽油废白土为原料，用超声-微波协同技术提取其中的亚麻籽油。在单因素实验基础上，选取超声功率、液料比和预处理温度作为影响因子，以油脂回收率为响应值，通过响应面法优化超声-微波预处理工艺条件。结果表明，超声-微波预处理的最佳工艺条件为：超声功率420 W，微波功率450 W，液料比3∶?1，预处理时间9 min，预处理温度72?℃。在最佳工艺条件下，亚麻籽油的回收率为89.8%。回收的亚麻籽油色泽较浅、品质较佳，达到普通亚麻籽毛油标准。 |
| 英文摘要: |
| Ultrasound-microwave-assisted extraction of flaxseed oil from oily waste clay was studied. On the basis of single factor experiment, with ultrasonic power, liquid-solid ratio and pretreatment temperature as factors, and the oil recovery rate as index, ultrasound-microwave pretreatment conditions were optimized by response surface methodology. The results indicated that the optimal pretreatment conditions were obtained as follows: ultrasonic power 420 W, microwave power 450 W, liquid-solid ratio 3∶?1, pretreatment time 9 min and pretreatment temperature 72?℃. Under these conditions , the oil recovery rate was 89.8%. The color of the recovered flaxseed oil was lighter and the quality was good, which reached the standard of crude flaxseed oil. |
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