发明名称 PRODUCTION OF CARBON BLACK INCREASED IN GRAPHITIZATION DEGREE
摘要 PURPOSE:To obtain a carbon black increased in graphitization and containing no aggregated mass by subjecting a graphite-like carbon black obtained by heat-treating carbon black under specific conditions to pulverizing treatment by a specific pulverizer. CONSTITUTION:Carbon black is heat-treated at 2000-3000 deg.C under an inert or non-oxidizing atmosphere to provide a graphite-like carbon black. The carbon black is fed into a fluid energy type crusher from a hopper 1 and carried by a high-pressure fluid (>=3kg/cm<2> gauge pressure in nozzle position) jetted from a nozzle 3, and passed through a squeezing part 5 and accelerated to a supersonic speed and entered a pulverizing zone 6 to pulverize the carbon black by mutual collision. Then the pulverized carbon black is entered a classifying zone 8 and discharged from exit 9 together with the fluid, and crude powder of insufficient pulverization is returned to the pulverizing zone again and subjected to circulation pulverization.
申请公布号 JPH04225074(A) 申请公布日期 1992.08.14
申请号 JP19900408430 申请日期 1990.12.27
申请人 MITSUBISHI KASEI CORP 发明人 HISA HIDEYUKI;FUKUYAMA YUTAKA
分类号 C09C1/56;C01B31/04 主分类号 C09C1/56
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