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| 棉油皂脚制备醋酸棉酚的研究 |
| Preparation of gossypol acetic acid from cottonseed soapstock |
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| DOI： |
| 中文关键词: 棉油皂脚 棉酚 醋酸棉酚 |
| 英文关键词:cottonseed soapstock gossypol gossypol acetic acid |
| 基金项目: |
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| 中文摘要: |
| 对棉油皂脚制备醋酸棉酚的工艺进行了研究。以棉油皂脚为原料，经酸化、水解、分液、结晶、过滤、干燥即可得到醋酸棉酚。通过单因素试验优化醋酸棉酚的制备工艺。结果表明：以棉油皂脚为原料，在浓硫酸添加量10%、加热时间90 min、冰醋酸与油相体积比1∶[KG-2mm]3条件下，一次结晶可得到纯度88%以上的醋酸棉酚，回收率大于60%；经过一次重结晶可得到纯度98%以上的醋酸棉酚，回收率大于45%。 |
| 英文摘要: |
| The preparation of gossypol acetic acid from cottonseed soapstock was studied. Gossypol acetic acid could be obtained from cottonseed soapstock through acidification, hydrolysis, separation, crystalization, filtration and drying. The preparation process of gossypol acetic acid was optimized by single factor experiment. The results showed that with cottonseed soapstock as raw material, under the conditions of dosage of concentrated sulphuric acid 10%, heating time 90 min and volume ratio of glacial acetic acid to oil phase 1∶[KG-2mm]3, the purity of gossypol acetic acid after crystallization was above 88% and recovery rate was above 60%. The purity of gossypol acetic acid was above 98% and recovery rate was above 45% through re-crystallization. |
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