| 发明名称 |
METHOD FOR PRODUCING HIGH PURITY CRYSTALLINE CARBAMIDE |
| 摘要 |
The invention relates to the method for producing high purity crystalline carbamide. The method comprises the crystallization and drying of carbamide, wherein an aqueous carbamide solution is preheated from +30° C. to +130° C., and thereafter the solution is purified by electrodialysis at a voltage in the range of 400 V-600 V. The technical result is the production of high-purity crystalline carbamide that can be used as an additive in the food industry and as a reagent in laboratory analyses. |
| 申请公布号 |
US2014332388(A1) |
申请公布日期 |
2014.11.13 |
| 申请号 |
US201214360347 |
申请日期 |
2012.12.03 |
| 申请人 |
Batullin Farid Alekovich;Andreev Andrei Vladimirovich |
发明人 |
Batullin Farid Alekovich;Andreev Andrei Vladimirovich |
| 分类号 |
B01D61/42;B01D61/58 |
主分类号 |
B01D61/42 |
| 代理机构 |
|
代理人 |
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| 主权项 |
1. A method for producing high purity crystalline carbamide from an aqueous carbamide solution, comprising carbamide crystallization and drying, characterized in that the aqueous carbamide solution is heated to a temperature from +30° C. to +130° C., whereupon the solution is purified by electrodialysis at a voltage in the range of 400V-600V. |
| 地址 |
Naberezhnye Chelny RU |
