公开(公告)号：US06465529B1

公开(公告)日：2002-10-15

申请号：US09628407

申请日：2000-08-01

申请人： Michel Andre Daage ,  Russell John Koveal ,  Leroy Russell Clavenna

发明人： Michel Andre Daage ,  Russell John Koveal ,  Leroy Russell Clavenna

IPC分类号： C07C2700

CPC分类号： C10G2/332 ,  B01J21/063 ,  B01J23/75 ,  B01J23/8896 ,  B01J37/12

摘要： An aqueous low temperature oxidation (ALTO) process wherein a catalyst or catalyst precursor constituted of a solids support, or powder component, and a metal, or metals component, inclusive of cobalt, is oxidized, reduced and rendered catalytically active for conducting carbon monoxide hydrogenation reactions. The cobalt catalyst or cobalt catalyst precursor is thus contacted at low temperature with an oxidant in the presence of water (e.g., water to which an oxidant is added), sufficient to oxidize the cobalt metal, or metals component of the catalyst or catalyst precursor. On reduction, the hydrogenation activity of the cobalt catalyst is increased. All or a portion of the cobalt metal of the catalyst precursor is oxidized to form a Co2+ cationic or oxo-anionic species at least during the initial phase of the reaction. On reduction, as may be produced by contact and treatment of the oxidized catalyst or catalyst precursor with hydrogen, or a hydrogen-containing gas, the catalytic metal, or metals component of the catalyst, is reduced to metallic metal, e.g., Co, and the catalyst thereby activated, and/or the catalytic activity increased.

摘要翻译： 一种低温低温氧化（ALTO）方法，其中由固体载体或粉末组分以及包含钴的金属或金属组分构成的催化剂或催化剂前体被氧化，还原并具有催化活性以进行一氧化碳氢化 反应。 因此，钴催化剂或钴催化剂前体在水（例如添加有氧化剂的水）存在下在低温下与氧化剂接触，足以氧化钴金属或催化剂或催化剂前体的金属组分。 还原时，钴催化剂的氢化活性提高。 至少在反应的初始阶段，全部或一部分催化剂前体的钴金属被氧化形成Co 2+阳离子或氧代阴离子物质。 在还原时，如可以通过用氢气或含氢气体接触和处理氧化的催化剂或催化剂前体而产生的，催化剂的催化金属或金属组分被还原成金属金属，例如Co，和 催化剂因此被活化，和/或催化活性增加。