[EN] METHOD FOR PREPARING HYDRAZODICARBONAMIDE USING BIURET AS STARTING MATERIAL<br/>[FR] PROCEDE DE PREPARATION D'HYDRAZODICARBONAMIDE AVEC DU BIURET COMME MATIERE PREMIERE
申请人:J & J CHEMICAL CO LTD
公开号:WO2003106400A1
公开(公告)日:2003-12-24
The method for preparing hydrazodicarbonamide(HDCA) using biuret as a starting material is disclosed. The method comprises the steps of; obtaining metal monohalobiuret salt by reacting a biuret with a metal hypohalogen compound, or by reacting the biuret with a halogenating agent and a base; and reacting the obtained metal monohalobiuret salt with ammonia, wherein the hydrazodicarbonamide is produced in the presence of a catalyst including bromine or iodine atom and generating bromine or iodine ion during the reaction.
揭示了使用双脲作为起始原料制备叠氮二氨基甲酰胺(HDCA)的方法。该方法包括以下步骤:通过将双脲与金属次溴化脲盐反应或将双脲与卤化剂和碱反应来获得金属次溴化脲盐;然后将所得金属次溴化脲盐与氨反应,其中在存在包括溴或碘原子的催化剂的情况下生成叠氮二氨基甲酰胺,并在反应过程中产生溴或碘离子。