公开(公告)号：US20100094040A1

公开(公告)日：2010-04-15

申请号：US12310601

申请日：2007-08-16

Applicant: Christoph Taschler ,  Andreas Breuer

Inventor： Christoph Taschler ,  Andreas Breuer

IPC: C07C255/02

CPC classification number: C07C253/04 ,  C07C253/32 ,  C07C255/05

Abstract: The present invention relates to a process for preparing highly pure alkali metal or alkaline earth metal tricyanomethanides.

Abstract translation: 本发明涉及制备高纯碱金属或碱土金属三氰基甲烷的方法。

公开(公告)号：US20100012901A1

公开(公告)日：2010-01-21

申请号：US12176872

申请日：2008-07-21

Applicant: Olusegun M. Falana ,  Aziz Hikem ,  Sarkis R. Kakadjian ,  Frank Zamora

Inventor： Olusegun M. Falana ,  Aziz Hikem ,  Sarkis R. Kakadjian ,  Frank Zamora

IPC: C09K3/00 ,  C07C255/02

CPC classification number: C07C255/05

Abstract: Hydrolyzed nitrilotriacetonitrile compositions are disclosed prepared by a method characterized by a one-shot addition of an amount of nitrilotriacetonitrile to a solution containing an acid catalyst, where the reaction is complete in a time period of less than an hour. The method is also characterized by adjusting the pH of the reaction mixture to a pH of at least 8. The method is also characterized by oxidatively removing free cyanide to a desired low level through the addition of an oxidizing agent the produces environmentally benign by-products to the crude hydrolyzed NTAN to form hydrolyzed NTAN compositions having minimized, negligible, or substantially no free cyanide levels.

Abstract translation: 公开了水解的次氮基三乙腈组合物，其通过以下方法制备，其特征在于将一定量的次氮基三乙腈一次性加入到含有酸催化剂的溶液中，其中反应在少于1小时的时间内完成。 该方法的特征还在于将反应混合物的pH调节至至少8的pH。该方法的特征还在于通过加入产生环境友好的副产物的氧化剂将游离氰化物氧化去除所需的低水平 到粗水解的NTAN以形成具有最小化，可忽略或基本上没有游离氰化物水平的水解的NTAN组合物。