发明名称 |
PROCEDIMENTO PER LA PREPARAZIONEDI UNA COMPOSIZIONE CATALITICA UTILE NELLA SINTESI DEL METANOLO |
摘要 |
A process for preparing a catalyst composition comprising copper oxide, zinc oxide and aluminum oxide as essential ingredients and optionally containing boron oxide, which comprises (a) a step of precipitating from an aqueous solution of a water-soluble copper salt optionally containing a water-soluble boron compound the copper component, together with the boron component if it is present, using an alkaline substance selected from alkali carbonates and alkali bicarbonates as a precipitant; (b) a step of blowing carbon dioxide gas into an aqueous dispersion of a zinc compound selected from zinc oxide and zinc hydroxide optionally containing a water-soluble boron compound to convert the zinc compound to basic zinc carbonate and simultaneously precipitate the boron component if it is present; and (c) a step of calcining a mixture of the solid products obtained in steps (a) and (b) in the presence of an alumina precursor compound. The resulting catalyst is useful for synthesizing methanol from a gaseous mixture of carbon monoxide and/or carbon dioxide and hydrogen. |
申请公布号 |
IT8025931(D0) |
申请公布日期 |
1980.11.12 |
申请号 |
IT19800025931 |
申请日期 |
1980.11.12 |
申请人 |
MITSUBISHI GAS CHEMICAL CO. INC. |
发明人 |
TADASI NAKAMURA;MINORU OSUGI;YORIKO OBATA;SUJI EBATA |
分类号 |
C07C29/15;B01J23/80;C07B61/00;C07C27/00;C07C29/154;C07C31/04;C07C67/00 |
主分类号 |
C07C29/15 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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