公开(公告)号：US20130184504A1

公开(公告)日：2013-07-18

申请号：US13823831

申请日：2011-09-05

申请人： Shengjian Zhang ,  Yingxian Zhao ,  Hong Zhang

发明人： Shengjian Zhang ,  Yingxian Zhao ,  Hong Zhang

IPC分类号： C07C201/14

CPC分类号： C07C201/14 ,  C07C201/06 ,  C07C205/02

摘要： The present invention relates to a method for preparing 2,3-dimethyl-2,3-dinitrobutane (DMNB), which includes the following steps: (1) making titanium-silicate molecular sieve catalyst, acetone, hydrogen peroxide and ammonia contact and react at 65-80° C. to obtain a modified titanium-silicate molecular sieve catalyst; and (2-1) making acetone oxime and hydrogen peroxide contact and react in the presence of the modified titanium-silicate molecular sieve catalyst and water under the conditions of temperature of 60-90° C. and pH of 8-10, and separating DMNB from the reaction products thereof; or (2-2) making acetone, ammonia and hydrogen peroxide contact and react in the presence of the modified titanium-silicate molecular sieve catalyst and water under the conditions of temperature of 60-90° C. and pH of 8-10, and separating DMNB from the reaction products thereof. By the method provided by the present invention, DMNB can be prepared without having to use dangerous chemicals, such as 2-nitropropane, NaH and the like.

摘要翻译： 本发明涉及一种制备2,3-二甲基-2,3-二硝基丁烷（DMNB）的方法，其包括以下步骤：（1）使钛硅酸盐分子筛催化剂，丙酮，过氧化氢和氨接触并反应 在65-80℃下，得到改性钛酸酯分子筛催化剂; 和（2-1）使丙酮肟和过氧化氢接触并在改性的钛酸硅酸盐分子筛催化剂和水的存在下在60-90℃的温度和pH为8-10的条件下反应，并分离 DMNB反应产物; 或（2-2）使丙酮，氨和过氧化氢接触并在改性钛硅酸盐分子筛催化剂和水的存在下在60-90℃的温度和pH为8-10的条件下反应，和 从其反应产物中分离DMNB。 通过本发明提供的方法，可以制备DMNB，而不必使用危险化学品，例如2-硝基丙烷，NaH等。

公开(公告)号：US08692036B2

公开(公告)日：2014-04-08

申请号：US13823831

申请日：2011-09-05

申请人： Shengjian Zhang ,  Yingxian Zhao ,  Hong Zhang

发明人： Shengjian Zhang ,  Yingxian Zhao ,  Hong Zhang

IPC分类号： C07C205/00

CPC分类号： C07C201/14 ,  C07C201/06 ,  C07C205/02

摘要： The present invention relates to a method for preparing 2,3-dimethyl-2,3-dinitrobutane (DMNB), which includes the following steps: (1) making titanium-silicate molecular sieve catalyst, acetone, hydrogen peroxide and ammonia contact and react at 65-80° C. to obtain a modified titanium-silicate molecular sieve catalyst; and (2-1) making acetone oxime and hydrogen peroxide contact and react in the presence of the modified titanium-silicate molecular sieve catalyst and water under the conditions of temperature of 60-90° C. and pH of 8-10, and separating DMNB from the reaction products thereof; or (2-2) making acetone, ammonia and hydrogen peroxide contact and react in the presence of the modified titanium-silicate molecular sieve catalyst and water under the conditions of temperature of 60-90° C. and pH of 8-10, and separating DMNB from the reaction products thereof. By the method provided by the present invention, DMNB can be prepared without having to use dangerous chemicals, such as 2-nitropropane, NaH and the like.

摘要翻译： 本发明涉及一种制备2,3-二甲基-2,3-二硝基丁烷（DMNB）的方法，其包括以下步骤：（1）使钛硅酸盐分子筛催化剂，丙酮，过氧化氢和氨接触并反应 在65-80℃下，得到改性钛酸酯分子筛催化剂; 和（2-1）使丙酮肟和过氧化氢接触并在改性的钛酸硅酸盐分子筛催化剂和水的存在下在60-90℃的温度和pH为8-10的条件下反应，并分离 DMNB反应产物; 或（2-2）使丙酮，氨和过氧化氢接触并在改性钛硅酸盐分子筛催化剂和水的存在下在60-90℃的温度和pH为8-10的条件下反应，和 从其反应产物中分离DMNB。 通过本发明提供的方法，可以制备DMNB，而不必使用危险化学品，例如2-硝基丙烷，NaH等。