专利视角下针状焦研究进展(Ⅱ)——原料预处理

Study on the technological development of needle coke from the patent perspective(Ⅱ)—— Pretreatment methods of raw material

从专利角度对国内外针状焦原料预处理发展现状进行分析。针状焦专利申请主要集中在美、日、中3国。与3国针状焦产业发展一致,美国以油系针状焦专利申请为主,日本以煤系针状焦专利申请为主,我国对煤系和油系针状焦都进行了大量专利申请。本文分别对中、美、日3国的针状焦原料预处理相关专利申请进行梳理。

The development of pretreatment methods of raw material for producing needle coke at home and abroad was introduced from the patent perspective.Results showed that patent applications were mainly in America,Japan and China.In accord with the development of industry,patents in America are mainly about producing oil-based needle coke,while patents in Japan focused on coal-based needle coke.Patents in China included the both.Patents about pretreatment methods of raw material in America,Japan and China were summarized.