公开(公告)号：US20100137625A1

公开(公告)日：2010-06-03

申请号：US12598700

申请日：2008-05-15

申请人： Hirofumi II

发明人： Hirofumi II

IPC分类号： C07F1/08 ,  C07C27/04

CPC分类号： B01J23/80 ,  B01J23/72 ,  B01J35/006 ,  B01J37/18 ,  C07C29/149 ,  C07C67/08 ,  C07C31/20 ,  C07C69/44 ,  C07C69/42 ,  C07C69/675

摘要： An objective is to provide a process for preparing 1,5-pentanediol and/or 1,6-hexanediol comprising esterifying, with an alcohol such as methanol, ethanol, butanol or 1,6-hexanediol, a mixture of carboxylic acids such as glutaric acid, adipic acid and 6-hydroxycaproic acid which are a by-product in preparation of cyclohexanone by oxidation of cyclohexane with oxygen or an oxygen-containing gas; and hydrogenating the resulting esterified product in the presence of a copper-containing catalyst, which process is an industrially suitable process for preparing 1,5-pentanediol and/or 1,6-hexanediol in a high yield while controlling deterioration of the catalyst. The above objective is achieved by hydrogenating the esterified product with a catalyst obtained by prereducing a copper-containing catalyst in an alcohol having an acid value (AV) of 0.5 mg KOH/g or less or an ester having an acid value (AV) of 0.5 mg KOH/g or less.

摘要翻译： 目的是提供一种制备1,5-戊二醇和/或1,6-己二醇的方法，其包括用醇如甲醇，乙醇，丁醇或1,6-己二醇酯化，羧酸如戊二酸的混合物 酸，己二酸和6-羟基己酸，它们是通过用氧或含氧气体氧化环己烷而制备环己酮的副产物; 并在含铜催化剂的存在下氢化所得酯化产物，该方法是工业上合适的方法，以高产率制备1,5-戊二醇和/或1,6-己二醇，同时控制催化剂的劣化。 上述目的是通过将酸性值（AV）为0.5mgKOH / g以下的醇中还原含铜催化剂或酸值（AV）为0.5以下的酯来获得的催化剂氢化酯化物， 0.5mg KOH / g以下。