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Carbon-chromium dehydrogenation catalyst, used in preparation of propylene, comprises chromium oxide as active component, potassium oxide and calcium oxide as subsidiary components, and alumina as carrier. 专利
申请日期: 2018-01-01, 公开日期: 2018-02-23
作者:  LU A HU S LI W
收藏  |  浏览/下载:4/0  |  提交时间:2019/12/02
Chromium-doped light hydrocarbon burning catalyst comprises aluminum oxide, chromium oxide, cerium oxide and chromium chloride. 专利
申请日期: 2011-01-01, 公开日期: 2011-09-28
作者:  ZHANG Y CHEN S ZHANG L YUAN X
收藏  |  浏览/下载:11/0  |  提交时间:2019/12/18
Active agent for welding magnesium alloy comprises titanium dioxide, chromium oxide, magnesium oxide, manganese oxide, and calcium oxide. 专利
申请日期: 2008-01-01, 公开日期: 2008-08-20
作者:  LIU L ZHANG Z
收藏  |  浏览/下载:4/0  |  提交时间:2019/12/27
Grain size adjustable spherical chromium oxide superfine powder preparing method. 专利
申请日期: 2003-01-01, 公开日期: 2003-11-12
作者:  NING G LIN Y LI Y
收藏  |  浏览/下载:3/0  |  提交时间:2020/01/02
Semiconductor injection laser 专利
专利号: GB1500156A, 申请日期: 1978-02-08, 公开日期: 1978-02-08
作者:  -
收藏  |  浏览/下载:17/0  |  提交时间:2019/12/24


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