Preparation of improved catalyst composition

专利名称：Preparation of improved catalyst

composition

发明人：Kazuo Asakawa,Yasuo Yamamoto,Shuji

Ebata,Tadasi Nakamura

申请号：US06/119778申请日：19800208公开号：US04305842A公开日：19811215

摘要：A process for preparing a catalyst composition containing a copper oxide, a zincoxide and an aluminum oxide as essential components and, if desired, containing a boronoxide, which comprises the following steps:

(a) a step of precipitating from an aqueous solution of a water-soluble copper salt,which solution, if desired, may contain a water-soluble boron compound, a coppercomponent, together with a boron component if the boron compound is present, withthe use of ammonium carbonate or ammonium bicarbonate as a precipitant;

< P>(b) a step of precipitating from an aqueous solution of a water- soluble zinc salt,which solution, if desired, may contain a water- soluble boron compound, a coppercomponent, together with a boron component if the boron compound is present, withthe use of an alkali hydroxide as a precipitant; and

(c) a step of calcing a mixture of the precipitates obtained in the steps (a) and (b) inthe presence of an alumina precursor compound.

The catalyst thus obtained is useful in synthesizing methanol from a mixed gas

comprising carbon monoxide and/or carbon dioxide and hydrogen.

申请人：MITSUBISHI GAS CHEMICAL COMPANY, INC.

代理机构：Wenderoth, Lind & Ponack

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