摘要
在分析宝山钢铁股份有限公司化工分公司联苯资源的基础上,研究了以Litol苯加氢装置苯塔塔底液SC-203及洗油加工的中间产物WOR-1为原料,进行分离提取联苯的工艺路线。以SC-203为原料,采用常、减压蒸馏和重结晶的工艺,可以获得纯度大于99.11%的联苯,收率68.3%;以WOR-1为原料,采用精馏、二次结晶的工艺,可以获得纯度为99.36%的联苯,收率47.7%。该厂联苯资源得到有效回收利用,扩大了联苯原料资源的来源。
Based on the analysis of biphenyl resources in Baoshan Iron ＆ Steel Co. ,Ltd. ,Chemical Branch,a process for reclaiming biphenyl was put forward, in which the material was SC-203 （the benzol stripper of the benzol hydrorefining plant）and WOR-1 （the intermediate of wash oil processing）. The process of combining atmospheric-vacuum distillation with solvent recrystallization was adopted to extract biphenyl from SC-203, the biphenyl with purity of 99.11% and a yield of 68.3 % could be obtained ; the process of combining rectification with secondary solvent crystallization was adopted to extract biphenyl from WOR-1, and the biphenyl with purity of 99.36 % and a yield of 47.7 % could be obtained. With these separation processes, the valuable biphenyl could be recovered and the choices of raw material resources of biphenyl were widened.
出处
《现代化工》
CAS
CSCD
北大核心
2007年第3期55-58,共4页
Modern Chemical Industry
关键词
联苯
煤焦油
提纯
精馏
结晶
biphenyl
coal tar
purification
distillation
crystallization
