35.
    发明专利
    未知

    公开(公告)号:DE69414240T2

    公开(公告)日:1999-04-22

    申请号:DE69414240

    申请日:1994-01-20

    Applicant: KAO CORP

    Abstract: PCT No. PCT/JP94/00077 Sec. 371 Date Jun. 6, 1995 Sec. 102(e) Date Jun. 6, 1995 PCT Filed Jan. 20, 1994 PCT Pub. No. WO95/19844 PCT Pub. Date Jul. 27, 1995A method for preparing a copper-containing hydrogenation reaction catalyst includes the step of reducing a formed precursor of a copper-containing hydrogenation reaction catalyst with hydrogen gas or a mixture of hydrogen and inert gas by liquid phase reduction in a stream of a solvent. The reductive activation is carried out by the two steps of performing the first stage of liquid phase reduction by which the catalyst precursor is activated in the temperature range of from 20 DEG to 140 DEG C. so that at least 10% by weight of the copper oxide contained in the catalyst precursor can be reduced by the time when the temperature passes 140 DEG C., and then performing the second stage of liquid phase reduction by which the catalyst precursor is further activated in the temperature range of from 140 DEG to 250 DEG C. The catalyst thus obtained has markedly improved catalytic activity and selectivity. An alcohol of high quality can be obtained at a high productivity using the catalyst in a fixed bed continuous reaction system.

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