发明名称 |
METHOD FOR PRODUCING HIGH-PURITY CRYSTALLINE CARBAMIDE |
摘要 |
The invention relates to a 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 |
CA2856276(C) |
申请公布日期 |
2016.09.06 |
申请号 |
CA20122856276 |
申请日期 |
2012.12.03 |
申请人 |
ANDREEV, ANDREI VLADIMIROVICH;BATULLIN, FARID ALEKOVICH |
发明人 |
ANDREEV, ANDREI VLADIMIROVICH;BATULLIN, FARID ALEKOVICH |
分类号 |
C07C237/16 |
主分类号 |
C07C237/16 |
代理机构 |
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代理人 |
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地址 |
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