基本信息:
- 专利标题： 一种焦化脱硫废液中提取的硫氰酸铵、硫氰酸钠产品提纯的方法
- 专利标题（英）：Method for purifying ammonium thiocyanate and sodium thiocyanate products extracted in coking desulfurization waste liquid
- 申请号：CN201910225269.2 申请日：2019-03-22
- 公开(公告)号：CN109796030A 公开(公告)日：2019-05-24
- 发明人： 李学龙 , 马小军 , 戚文岭 , 李学珍 , 张元静 , 王少华
- 申请人： 扬州康龙环保工程有限公司
- 申请人地址： 江苏省扬州市高邮市八桥工业集中区
- 专利权人： 扬州康龙环保工程有限公司
- 当前专利权人： 扬州康龙环保工程有限公司
- 当前专利权人地址： 江苏省扬州市高邮市八桥工业集中区
- 代理机构： 南京申云知识产权代理事务所
- 代理人： 朱进
- 主分类号： C01C3/20
- IPC分类号： C01C3/20
The invention discloses a method for purifying ammonium thiocyanate and sodium thiocyanate products extracted in coking desulfurization waste liquid and belongs to the technical field of chemical environment protection. The method includes: dissolving and filtering crude products- ammonium thiocyanate and sodium thiocyanate extracted from the coking desulfurization waste liquid, utilizing an ultrafiltration membrane system to finely filter obtained filtrate, and subjecting penetrating liquid to obtain concentration and separation to obtain high-purity ammonium thiocyanate and sodium thiocyanate products. The method is simple in process step, good in purifying effect and capable of improving purity of the ammonium thiocyanate and sodium thiocyanate products to 98-99% to meet quality required by end customers.