公开(公告)号：US20130096349A1

公开(公告)日：2013-04-18

申请号：US13704726

申请日：2011-06-17

Applicant: Vijav Vasant Bokade ,  Praphulla Narahar Joshi ,  Prashant Suresh Niphadkar

Inventor： Vijav Vasant Bokade ,  Praphulla Narahar Joshi ,  Prashant Suresh Niphadkar

IPC: C07C209/60

CPC classification number: C07C209/60 ,  C07C211/07

Abstract: The invention discloses an improved process for the conversion of isobutylene to tertiary butylamine with conversion up to 50% at pressure lower than 40 bar.

Abstract translation: 本发明公开了一种在低于40巴的压力下将异丁烯转化为叔丁胺的改进方法，转化率高达50％。

公开(公告)号：US08722935B2

公开(公告)日：2014-05-13

申请号：US13704726

申请日：2011-06-17

Applicant: Vijav Vasant Bokade ,  Praphulla Narahar Joshi ,  Prashant Suresh Niphadkar

Inventor： Vijav Vasant Bokade ,  Praphulla Narahar Joshi ,  Prashant Suresh Niphadkar

IPC: C07C209/60

CPC classification number: C07C209/60 ,  C07C211/07

Abstract: The invention discloses an improved process for the conversion of isobutylene to tertiary butylamine with conversion up to 50% at pressure lower than 40 bar.

Abstract translation: 本发明公开了一种在低于40巴的压力下将异丁烯转化为叔丁胺的改进方法，转化率高达50％。

公开(公告)号：US07365204B2

公开(公告)日：2008-04-29

申请号：US10806061

申请日：2004-03-22

Applicant: Rajiv Kumar ,  Praphulla Narahar Joshi ,  Gopal Moreshwar Chaphekar ,  Prashant Suresh Niphadkar ,  Ashutosh Agarwal ,  Pradeep Kumar Verma ,  Kumar Samir Singh

Inventor： Rajiv Kumar ,  Praphulla Narahar Joshi ,  Gopal Moreshwar Chaphekar ,  Prashant Suresh Niphadkar ,  Ashutosh Agarwal ,  Pradeep Kumar Verma ,  Kumar Samir Singh

IPC: C07D213/08 ,  C07D213/12

CPC classification number: C07D213/08 ,  B01J29/89 ,  B01J2229/12 ,  B01J2229/32 ,  C07D213/10

Abstract: An process for the preparation of pyridine and/or picolines is disclosed. The process comprises contacting a mixture of carbonyl compound with ammonia in the presence of surface-passivated titanium-silicate catalyst in gas phase at a temperature ranging between 300-500° C., at gas space velocity in the range of 300 to 3000 h−1 and at a pressure ranging between 1 to 10 atmosphere, condensing and separating the products by conventional methods and if desired, further purifying the product using well known conventional methods.

Abstract translation: 公开了制备吡啶和/或吡啶甲酸的方法。 该方法包括在表面钝化的钛硅酸盐催化剂存在下，在300-300℃的温度范围内，在300-500℃的温度范围内，使羰基化合物与氨的混合物在气相中接触， SUP> -1，并且在1至10个大气压的范围内，通过常规方法冷凝和分离产物，如果需要，使用公知的常规方法进一步纯化产物。