发明名称 |
Process for producing formaldehyde |
摘要 |
Formaldehyde is prepared by dehydrogenating methanol in the substantial absence of oxygen and in the presence of a catalyst which is a zinc-silicon complex oxide obtained by mixing a solution containing a zinc salt of an inorganic or organic acid with a solution containing an inorganic silicate compound, or by adding urea to a solution containing a zinc salt of an inorganic or organic acid and an organic silicate compound, until a precipitate is formed, and subsequently baking the precipitate at at least 500 DEG C.
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申请公布号 |
US4788347(A) |
申请公布日期 |
1988.11.29 |
申请号 |
US19870098274 |
申请日期 |
1987.09.18 |
申请人 |
SUMITOMO CHEMICAL COMPANY, LTD. |
发明人 |
SAGOU, MASAKAZU;FUJII, HIDEYO |
分类号 |
C07B61/00;B01J21/16;B01J23/00;B01J23/06;C07C45/00;C07C45/38;C07C47/052;C07C67/00;(IPC1-7):C07C47/04 |
主分类号 |
C07B61/00 |
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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