基本信息:
- 专利标题： 一种催化安息香脱氢制备苯偶酰的方法
- 专利标题（英）：Method for preparing benzil through catalytic dehydrogenation of benzoin
- 申请号：CN201910001201.6 申请日：2019-01-02
- 公开(公告)号：CN109627151A 公开(公告)日：2019-04-16
- 发明人： 刘得民
- 申请人： 浙江昊唐实业有限公司
- 申请人地址： 浙江省杭州市江干区经济技术开发区8号大街2号1幢105室
- 专利权人： 浙江昊唐实业有限公司
- 当前专利权人： 浙江昊唐实业有限公司
- 当前专利权人地址： 浙江省杭州市江干区经济技术开发区8号大街2号1幢105室
- 代理机构： 杭州橙知果专利代理事务所
- 代理人： 李品
- 主分类号： C07C45/00
- IPC分类号： C07C45/00 ; C07C49/784 ; B01J23/80
The invention discloses a method for preparing benzil through catalytic dehydrogenation of benzoin. The benzoin is adopted as a raw material, benzil is prepared through catalytic dehydrogenation, anda dehydrogenation catalyst is prepared from, by weight, 50-60 parts of iron sesquioxide, 5-10 parts of potassium oxide, 10-20 parts of titanium dioxide and 2-8 parts of zinc oxide. According to the method, a static bed is adopted for reacting, continuous production can be achieved, a hydrogen storage carrier is added to serve as a reaction solvent, the reaction is carried out in inert gas atmosphere, the conversion per pass of benzoin is 82.5%, the selectivity of benzil is 98.9%, and the method has the advantages of being small in by-product quantity, small in environmental pollution, low in reaction cost and the like.