公开(公告)号：US5001252A

公开(公告)日：1991-03-19

申请号：US132229

申请日：1987-12-11

Applicant: Ajit K. Bhattacharya

Inventor： Ajit K. Bhattacharya

IPC: C07C68/00

CPC classification number: C07C68/005

Abstract: An organic carbonate such as dimethyl carbonate is prepared by reacting an alcohol such as methanol with carbon monoxide and oxygen in the presence of a catalyst system containing Cu(OMe)Cl as catalyst and a urea or a mixture of ureas as a cosolvent for the catalyst system.

Abstract translation: 有机碳酸酯如碳酸二甲酯通过在含有Cu（OMe）Cl作为催化剂的催化剂体系和脲或作为催化剂的共溶剂的脲的混合物存在下，使甲醇等醇与一氧化碳和氧反应来制备， 系统。

公开(公告)号：US5423975A

公开(公告)日：1995-06-13

申请号：US910051

申请日：1992-07-08

Applicant: Chakka Sudhakar ,  Gerald G. Sandford ,  Ajit K. Bhattacharya

Inventor： Chakka Sudhakar ,  Gerald G. Sandford ,  Ajit K. Bhattacharya

IPC: C10G45/08 ,  C10G45/04

CPC classification number: C10G45/08

Abstract: Naphtha is selectively hydrodesulfurized using spent resid upgrading catalyst to remove sulfur while minimizing loss in octane level due to olefin saturation.

Abstract translation: 使用废渣改质催化剂选择性地加氢脱硫，以除去硫，同时使由烯烃饱和引起的辛烷值降低最小化。

公开(公告)号：US4879266A

公开(公告)日：1989-11-07

申请号：US218766

申请日：1988-07-14

Applicant: Ajit K. Bhattacharya

Inventor： Ajit K. Bhattacharya

IPC: C07C68/00

CPC classification number: C07C68/005

Abstract: An organic carbonate such as dimethyl carbonate is prepared by reacting an alcohol such as methanol, oxygen, and carbon monoxide in the presence of a catalyst system containing Cu(OMe)Cl as catalyst and boron trifluoride, calcium chloride, benzyltriethylammonium chloride, etc. as promoters.

Abstract translation: 在含有Cu（OMe）Cl作为催化剂的催化剂体系和三氟化硼，氯化钙，苄基三乙基氯化铵等的催化剂体系存在下，通过使甲醇，氧气和一氧化碳等醇类反应来制备碳酸二甲酯，作为 发起人。

公开(公告)号：US4824869A

公开(公告)日：1989-04-25

申请号：US158474

申请日：1988-02-22

Applicant: Guillermo Prada-Silva ,  Ajit K. Bhattacharya

Inventor： Guillermo Prada-Silva ,  Ajit K. Bhattacharya

IPC: B01J23/887 ,  C07C29/156 ,  C07C29/157

CPC classification number: B01J23/8872 ,  C07C29/156 ,  C07C29/157

Abstract: A method for preparing a mixture of lower aliphatic alcohols from the reaction of carbon monoxide and hydrogen in the presence of an oxide-containing heavy metal catalyst under carbon monoxide-hydrogenation conditions in which said catalyst comprises an alumina support, at least one heavy metal oxide selected from the group of oxides consisting of molybdenum, tungsten, rhenium, optionally, a heavy metal oxide from the group of elements consisting of cobalt, iron and nickel, and an alkali or alkaline earth promotor which has been treated with a nitrogen-containing compound, or a thermally stable derivative thereof is provided.

Abstract translation: 一种在一氧化碳 - 氢化条件下，在含氧化物的重金属催化剂存在下由一氧化碳和氢气反应制备低级脂族醇的混合物的方法，其中所述催化剂包含氧化铝载体，至少一种重金属氧化物 选自由钼，钨，铼组成的氧化物组，任选地，由钴，铁和镍组成的元素组中的重金属氧化物，以及已经用含氮化合物处理的碱金属或碱土金属的促进剂 ，或其热稳定衍生物。