基本信息:
- 专利标题： 一种水杨腈精制的工艺方法
- 专利标题（英）：Technical method for refining salicylonitrile
- 申请号：CN201710241380.1 申请日：2017-04-13
- 公开(公告)号：CN107098830A 公开(公告)日：2017-08-29
- 发明人： 黄金祥 , 吴建平 , 刘长庆 , 戴玉婷 , 黄显超 , 杨亚明 , 张军 , 徐小兵 , 朱张
- 申请人： 安徽广信农化股份有限公司
- 申请人地址： 安徽省宣城市广德县新杭镇彭村村
- 专利权人： 安徽广信农化股份有限公司
- 当前专利权人： 安徽广信农化股份有限公司
- 当前专利权人地址： 安徽省宣城市广德县新杭镇彭村村
- 代理机构： 合肥鼎途知识产权代理事务所
- 代理人： 叶丹
- 主分类号： C07C253/34
- IPC分类号： C07C253/34 ; C07C255/53
The invention discloses a technical method for refining salicylonitrile. The technical method specifically comprises the following steps: putting salicylonitrile to be refined into a refining kettle; adding metered xylene, water and sodium chloride, heating to 90-95 DEG C, stirring for a half hour, and standing for layering; separating out lower-layer water; transferring an oil layer into a crystalizing kettle; adding metered xylene into the water layer and extracting; transferring extract liquor into the crystalizing kettle. According to the invention, after salicylonitrile is refined, extracted and crystalized, impurities in unqualified salicylonitrile can be effectively removed and the yield and quality of refined salicylonitrile are higher than those of re-crystalized salicylonitrile. According to the invention, the technical method design for refining salicylonitrile is optimized and the requirement for the technical method design for refining salicylonitrile is met.
IPC结构图谱:
| C | 化学；冶金 |
| --C07 | 有机化学 |
| ----C07C | 无环或碳环化合物 |
| ------C07C253/00 | 羧酸腈的制备 |
| --------C07C253/32 | .分离；纯化；稳定化；添加剂的使用 |
| ----------C07C253/34 | ..分离；纯化 |