31-10-2013 дата публикации
Номер: US20130289311A1
Принадлежит:
Disclosed herein are processes for preparing an α,ω-C-diol, wherein n is 5 or greater, from a feedstock comprising a Coxygenate. In one embodiment, the process comprises contacting the feedstock with hydrogen gas in the presence of a catalyst comprising Cu, a Cu oxide, or mixtures thereof; a heteropoly acid component comprising H[P(WO)], H[Si(WO)], H[P(MoO)], H[Si(MoO)], CsH[P(WO)], CsH[Si(WO)], or mixtures thereof; optionally a second metal component comprising Cr, a Cr oxide, Ni, a Ni oxide, Mn, a Mn oxide, Fe, an Fe oxide, Co, a Co oxide, Mo, a Mo oxide, W, a W oxide, Re, a Re oxide, Zn, or a Zn oxide, Ag, a Ag oxide, SiO, or AlO; optionally at least one promoter comprising Na, K, Mg, Rb, Cs, Ca, Sr, Ba, Ce, or mixtures thereof; and optionally a support. 1. A process for preparing an α ,ω-C-diol , comprising the steps:{'sub': 'n', '(a) providing a feedstock comprising a Coxygenate;'}{'sub': 'n', '(b) contacting the feedstock with hydrogen gas, in the presence of a catalyst and at a temperature and for a time sufficient to form a product mixture comprising an α,ω-C-diol;'}wherein n is 5 or greater; and wherein the catalyst comprises a first metal component, a heteropoly acid component, optionally a second metal component, optionally at least one promoter, and optionally a support;wherein:the first metal component comprises Cu, a Cu oxide, or mixtures thereof;{'sub': 3', '3', '10', '4', '4', '3', '10', '4', '4', '3', '10', '4', '4', '3', '10', '4', '2.5', '0.5', '3', '10', '4', '2.5', '0.5', '3', '10', '4, 'the heteropoly acid component comprises H[P(WO)], H[Si(WO)], H[P(MoO)], H[Si(MoO)], CsH[P(WO)], CsH[Si(WO)], or mixtures thereof;'}{'sub': 2', '2', '3, 'the second metal component comprises Cr, a Cr oxide, Ni, a Ni oxide, Mn, a Mn oxide, Fe, an Fe oxide, Co, a Co oxide, Mo, a Mo oxide, W, a W oxide, Re, a Re oxide, Zn, or a Zn oxide, Ag, a Ag oxide, SiO, or AlO; and'}the promoter comprises Na, K, Mg, Rb, Cs, Ca, Sr, Ba, Ce, or mixtures thereof.2. The process of ...
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