粗酚论文.doc

目录 一．前言……………………………………………………………………………3 二．酚类化合物的性质和分布……………………………………………………3 三．酚类化合物的提取……………………………………………………………7 1．提取酚类化合物的工艺原理………………………………………………7 2．工艺流程……………………………………………………………………8 四．粗酚的精制……………………………………………………………………13 1．工艺流程……………………………………………………………………13 2．操作指标参数………………………………………………………………19 五．酚类产品的质量及用途………………………………………………………20 1．酚类产品的质量……………………………………………………………20 2．酚类产品的用途……………………………………………………………21 六．实验……………………………………………………………………………22 七．结论……………………………………………………………………………28 八．参考文献………………………………………………………………………28 致谢……………………………………………………………………………29 煤焦油中酚的加工及应用 [摘要]酚类物质会使油品的残炭量增加、味臭、变色、具有腐蚀性及燃烧情况不好等负面作用，因此它的存在对油品 是一种有害物质，但将其从煤焦油中分离精制作为化工原料却是极有价值的。以酚类为原料，可以生产许多 种产品如：塑料、粘结剂、杀虫剂、消毒剂、表面活性剂、鞣剂等。随着工业的迅速发展，对酚类物质的需求量也逐渐增加。采用酸碱法对其中所含酚类物质进行提取[关键词]：The processing and application of coal tar phenol [ Abstract ]: phenol is one of the main chemical products from coal tar, composition, each product composition and yield of coal blending and coking properties and operating conditions on the. The higher the coking temperature, phenol yield is low, in the period of lower phenol decreased, while senior phenols increased, coal tar phenolic fluctuations, 1% ~ 2.5%. Most of them are low boiling phenols ( phenol, cresol, xylenol, generally about two ) accounted for total phenols in coal tar 60%. But phenols will make the carbon residue oil increases, foul smell, discoloration, corrosion, bad combustion conditions and other negative effects, so it is a kind of harmful substances in the oil, but from the coal tar refining as chemical raw materials is very valuable. Taking phenol as raw material, can produce many kinds of products such as: plastic, adhesive, insecticide, disinfectant, surfactant, tanning agent. With the rapid development of industry, the demand for phenols increased. Therefore, the extraction of phenol from coal tar is one of the effective ways for comprehensive utilization of coal tar. So in this paper, taking coal tar as the object of study, were used to extract phenolic compound