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公开(公告)号：RO70924A
公开(公告)日：1982-08-17
申请号：RO8124075
申请日：1975-01-24
Applicant: DEGUSSA
Inventor： OELMANN ALFRED , ENGEL CLAUS R , ROTHBUHR LOTHAR
IPC: C09C1/48
Abstract: Deeply colored carbon black having a low content of extractable matter and a primary particle size of about 8-25 nanometers is made by the gas black process using as the carrier gas for the vapors of the carbon black forming oil a hydrogen rich mixture containing over about 50 volume % hydrogen and then collecting the separated carbon black deposited on a cooling roll.
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