发明授权
- 专利标题: Agglomerates of malachite and method for their preparation
- 专利标题(中): 孔雀石聚集体及其制备方法
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申请号: US930059申请日: 1986-11-12
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公开(公告)号: US4727166A公开(公告)日: 1988-02-23
- 发明人: Joseph M. Fremont
- 申请人: Joseph M. Fremont
- 申请人地址: DE Wilmington
- 专利权人: E. I. du Pont de Nemours and Company
- 当前专利权人: E. I. du Pont de Nemours and Company
- 当前专利权人地址: DE Wilmington
- 主分类号: B01J23/843
- IPC分类号: B01J23/843 ; B01J27/20 ; C07C33/046 ; C07F1/08
摘要:
Agglomerates of spheroidal masses of malachite crystals are prepared so that they contain silicic acid. These agglomerates can be used to prepare a copper-acetylide complex, which in turn can be used as a catalyst for the preparation of 1,4-butynediol from acetylene and formaldehyde.
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