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
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