基本信息:
- 专利标题： 一种用单宁生物质制备没食子酸和焦性没食子酸的方法
- 专利标题（英）：Method for preparing gallic acid and pyrogallic acid with tannin biomass
- 申请号：CN201610613784.4 申请日：2016-07-30
- 公开(公告)号：CN106146284A 公开(公告)日：2016-11-23
- 发明人： 张基明 , 杨长满 , 杨金明 , 蒋家均 , 胡敬
- 申请人： 遵义市倍缘化工有限责任公司
- 申请人地址： 贵州省遵义市遵义县沙湾镇
- 专利权人： 遵义市倍缘化工有限责任公司
- 当前专利权人： 遵义市倍缘化工有限责任公司
- 当前专利权人地址： 贵州省遵义市遵义县沙湾镇
- 代理机构： 贵阳派腾阳光知识产权代理事务所
- 代理人： 管宝伟
- 主分类号： C07C51/09
- IPC分类号： C07C51/09 ; C07C65/03 ; C07C37/055 ; C07C39/10
The invention provides a method for preparing gallic acid and pyrogallic acid with tannin biomass and belongs to the technical field of chemical production. A mixed solution of deionized water, absolute ethyl alcohol and formamide is utilized to carry out acid-base catalysis and special dissolvability in high-temperature liquid state, Chinese gall or tara is enabled to be decomposed into gallic acid or pyrogallic acid to undergo strongly acidic styrene type cation exchange resin reaction in the microwave environment after dehydration and ethanol removal, Chinese gall or tara is enabled to be hydrolyzed fully, and gallic acid and pyrogallic acid products processed via some processing steps are high in analysis purity and total yield. Test proves that the analysis purity of gallic acid and pyrogallic acid products are above 90wt% and 95wt%. Total yield of products is over 75%.
公开/授权文献:
- CN106146284B 一种用单宁生物质制备没食子酸和焦性没食子酸的方法 公开/授权日：2018-12-18