申请人:——
公开号:US20040039214A1
公开(公告)日:2004-02-26
Unsubstituted or alkyl-substituted THF is obtained by catalytic hydrogenation in the gas phase of C
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-dicarboxylic acids and/or their derivatives using a catalyst comprising <80% by weight, preferably <70% by weight, in particular from 10 to 65% by weight, of CuO and >20% by weight, preferably >30% by weight, in particular from 35 to 90% by weight, of an oxidic support having acid centers, at a hot spot temperature of from 240 to 310° C., preferably from 240 to 280° C., and a WHSV over the catalyst of from 0.01 to 1.0, preferably from 0.02 to 1, in particular from 0.05 to 0.5, kg of starting material/l of catalyst×hour.
未取代或烷基取代的四氢呋喃是在气相中通过催化氢化 C
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-二羧酸和/或其衍生物,催化剂的重量百分比为 20%,优选大于 30%,特别是 35% 至 90%,具有酸中心的氧化性载体,热点温度为 240 至 310°C,优选 240 至 280°C,催化剂上的 WHSV 为 0.01 至 1.0,优选 0.02 至 1,特别是 0.05 至 0.5(公斤起始原料/升催化剂×小时)。