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浏览/检索结果: 共6条，第1-6条 帮助 限定条件 内容类型：专利     已选(0)清除 条数/页：5101520253035404550556065707580859095100   排序方式：请选择作者升序作者降序题名升序题名降序发表日期升序发表日期降序提交时间升序提交时间降序 Preparing graphene quantum dot comprises e.g. taking benzoic acid as carbon source, paving, vacuumizing, sublimating, filling with hydrogen and oxygen gases, subjecting to explosion, cooling and collecting black product. 专利 申请日期: 2018-01-01, 公开日期: 2018-04-20 作者:  YAN H HE C LI X ZHAO T 收藏  |  浏览/下载：1/0  |  提交时间：2019/12/02 Method for using green environmental protection marsh gas resource in petroleum industry, involves generating specific steam medium-voltage, and performing low temperature heat recycling in heat exchanger using marsh gas temperature. 专利 申请日期: 2015-01-01, 公开日期: 2015-09-16 作者:  DAI Y HE G LI B RUAN X YAN X GUO M 收藏  |  浏览/下载：9/0  |  提交时间：2019/12/09 Oxygen-enriched air separation membrane used for synthetic ammonia gasification process, includes air compressor, precision filter, preheater, membrane separation system, compressor, methanation furnace, and cryogenic separation device. 专利 申请日期: 2015-01-01, 公开日期: 2015-09-02 作者:  HE G LI B RUAN X YAN X ZHANG N ZHU 收藏  |  浏览/下载：4/0  |  提交时间：2019/12/09 Preparing 9-fluorenone comprises mixing fluorene with water as solvent, alkali catalyst, quaternary ammonium salt as phase transfer agent and oxidant and then reacting. 专利 申请日期: 2014-01-01, 公开日期: 2014-05-14 作者:  SHI Z LI H YAN J YU L GAO Z HE Y 收藏  |  浏览/下载：15/0  |  提交时间：2019/12/11 Composite carbon membrane comprises cellulose ether derivative layer and porous polymeric support membrane. 专利 申请日期: 2014-01-01, 公开日期: 2014-04-09 作者:  HE G YAN X LI B RUAN X DAI Y YAO C 收藏  |  浏览/下载：4/0  |  提交时间：2019/12/11 Phase-transfer catalytic preparation of 9-fluorenone involves mixing fluorine with xylene with alkali solution as catalyst, adding quat.-ammonium salt, stirring, introducing oxygen-containing gas, cooling, crystallizing, and filtering. 专利 申请日期: 2013-01-01, 公开日期: 2013-12-11 作者:  YAN J YU L LI H GAO Z HE Y 收藏  |  浏览/下载：2/0  |  提交时间：2019/12/13