Method for producing carbon black

Patent · Tue Jul 05 04:00:00 EDT 1988

OSTI ID:6774023

Dickerson, T

A method is described for producing a relatively coarse, highly structured carbon black having a large surface area which comprises the steps of: (a) mixing a hydrocarbon feedstock with hot combustion gases at a high temperature in a reaction chamber wherein turbulence and stream velocity are relatively low in order to produce a preliminary coarse carbon black and effluent gases; (b) separating the produced preliminary coarse carbon black of step (a) from the effluent gases; (c) feeding the preliminary carbon black of step (a) into a reaction chamber wherein the preliminary carbon black is oxidized by hot combustion gases under controlled conditions of about 100 to 150 MCFH of air, about 0 to 4 MCFH of oxygen, about 6 to 14 MCFH of process gas, about 500 to 800 Lbs/hr of preliminary carbon black feedstock, at a blast ratio of about 7.1 to 25.1 and a total ratio of about 8.1 to 26.7, and wherein the residence time is between 1.5 and 4.5 seconds, to produce final large surface area, course, highly structured carbon black product and effluent gases; and (d) separating the final highly structured carbon black product of step (c) from the effluent gases.

• Assignee: Columbian Chemicals Co., Atlanta, GA
• Patent Number(s): US 4755371
• OSTI ID: 6774023
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
CARBON
CARBON BLACK
CHEMICAL PREPARATION
CHEMICAL REACTORS
COMBUSTION PRODUCTS
DENSITY
ELEMENTS
ENRICHMENT
FLUIDS
GASES
HYDROCARBONS
MOLECULAR STRUCTURE
NONMETALS
ORGANIC COMPOUNDS
OXYGEN ENRICHMENT
PHYSICAL PROPERTIES
PRODUCTION
SEPARATION PROCESSES
SURFACE PROPERTIES
SYNTHESIS