Process for producing carbon black
AssigneeDenki Kagaku Kogyo Kabushiki Kaisha
InventorsKohichi Sugawara, Isamu Matsui, Naoki Ishimaru, Teruhiro Ikegami
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Abstract
Carbon black is produced from sources of acetylene and at least one gaseous hydrocarbon selected from the group consisting of ethylenically unsaturated hydrocarbons, aromatic unsaturated hydrocarbons, monocyclic unsaturated hydrocarbons and polycyclic unsaturated hydrocarbons and oxygen. A thermal decomposition of acetylene and a partial combustion-reaction of hydrocarbon independently perform at a moment at the initiation of the reaction; and then, performing mixed reactions of all sources for the reactions in the same region in a reaction furnace.
Claims5
A process for producing carbon black, comprising:
- simultaneously ejecting streams of thermally decomposing acetylene and a partially burning hydrocarbon selected from the group consisting of ethylenically unsaturated hydrocarbons, aromatic hydrocarbons, monocyclic unsaturated hydrocarbons and polycyclic unsaturated hydrocarbons in the presence of oxygen from separate sources allowing initiation of the decomposing and combustion reactions before said streams converge, and
- immediately mixing the materials in the streams such that the bulk of the decomposition and combustion reactions occur while all of the materials are combined in a single zone in a reaction furnace, whereby said carbon black product is produced having the ability to adsorb hydrogen chloride in amounts greater than 17.0 ml/5 g of carbon black.
Dependencies are inferred from the claim text.