Carbon black production
    2.
    发明授权
    Carbon black production 失效
    碳黑生产

    公开(公告)号:US3619141A

    公开(公告)日:1971-11-09

    申请号:US3619141D

    申请日:1968-10-21

    CPC classification number: C09C1/50 C01P2006/12 C01P2006/19

    Abstract: Process for the production of carbon black by the pyrolytic decomposition of a hydrocarbon feed in a reactor having an axial zone, a combustion zone, and a carbon black formation zone in axial alignment wherein the gases in the axial zone are passed through a cone and/or choke and into the combustion zone and a portion of the gases downstream of the choke passed to the upstream side of the choke.

    Carbon black process and reactor
    3.
    发明授权

    公开(公告)号:US3607057A

    公开(公告)日:1971-09-21

    申请号:US3607057D

    申请日:1968-05-23

    CPC classification number: C09C1/50 C01P2006/12 C01P2006/19

    Abstract: Process and apparatus for the production of carbon black wherein an oxygen-containing gas, with or without fuel, is introduced into an axial zone of a reactor and passed through a diametrally restricted section of said zone wherein it is commingled with hydrocarbon feed, the mixture passed into at least one stepped zone having a cross-sectional area greater than the crosssectional area of said axial zone wherein it is expanded, the expanded mixture passed into a combustion zone and contacted therein with combustion gases, and the resulting mass passed into a reaction zone wherein the hydrocarbon feed is pyrolytically decomposed into carbon black.

    Method and apparatus for the production of carbon black

    公开(公告)号:US3592596A

    公开(公告)日:1971-07-13

    申请号:US3592596D

    申请日:1968-05-23

    CPC classification number: C09C1/50 C01P2006/12 C01P2006/19

    Abstract: PROCESS AND APLPARATUS FOR THE PRODUCTION OF CARBON BLACK WHEREIN A MIXTURE OF HYDROCARBON FEED AND HOT COMBUSTION GASES IS EXPANDED IN AT LEAST ONE INTERMEDIATE SECTION OF THE REACTOR, THE EXPANDED MIXTURE PASSED INTO A COMBUSTION ZONE HAVING A DIAMETER GREATER THAN THE DIAMETER OF SAID INTERMEDIATE SECTION AND CONTACTED THEREIN WITH ADDITIONAL HOT COMBUSTION GASES, AND THE RESULTING MIXTURE PASSED INTO A REACTION ZONE WHEREIN THE HYDROCARBON FEED IS PYROLYTICALLY DECOMPOSED INTO CARBON BLACK.

    Preoxidation and pelleting of carbon black
    9.
    发明授权
    Preoxidation and pelleting of carbon black 失效
    炭黑的预氧化和去除

    公开(公告)号:US3870785A

    公开(公告)日:1975-03-11

    申请号:US38630673

    申请日:1973-08-07

    CPC classification number: C09C1/58 C01P2004/50 C09C1/565

    Abstract: Carbon black is pelleted in the presence of nitric acid and the wet pellets are dried. A gaseous stream, preferably flue gas from the drying step, is introduced into contact with the drying pellets to produce a purge gas containing nitrogen oxides. This purge gas is introduced into contact with the flocculent black to preoxidize the flocculent black prior to its introduction into the pelleter.

    Abstract translation: 在硝酸的存在下将炭黑沉淀,并将湿颗粒干燥。 将来自干燥步骤的优选烟道气的气流引入与干燥颗粒接触以产生含有氮氧化物的净化气体。 该吹扫气体被引入与絮状黑色接触以在将其引入造粒器之前对絮状黑进行预氧化。

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