Methods of controlling the process of thermal oxidation treatment of coal pitch
Journal Article
·
· Coke Chem. USSR (Engl. Transl.); (United States)
OSTI ID:6169533
An improved method for the thermal oxidation of coal tar has been developed. Coal tar in a thin layer is treated with air in the apparatus described herein. The results are an increase in oxidative polymerization over thermal polymerization due to lower operating temperature (250/sup 0/C from 340/sup 0/C) improved contact with air and an improvement (increased plasticity) of its properties as a binder. Process improvements compared to the processing of pitch in bubbler tanks, in addition to lower temperature are a reduction in treatment time by a factor of 15-36, an increase in yield due to the conversions of light feedstock components to pitch and a decrease in yield but an improvement in quality of pitch distillates recovered. Thin layer pitches are superior to bubbler method pitches in a number of applications: wetting capacity (carbon), the production of anode compound, graphitized products and blast furnace blocks.
- Research Organization:
- Ural Polytechnic Inst., Sverdslovsk, USSR
- OSTI ID:
- 6169533
- Journal Information:
- Coke Chem. USSR (Engl. Transl.); (United States), Journal Name: Coke Chem. USSR (Engl. Transl.); (United States) Vol. 5; ISSN COKCA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
01 COAL, LIGNITE, AND PEAT
010500* -- Coal
Lignite
& Peat-- Products & By-Products
AIR
BENCH-SCALE EXPERIMENTS
BINDERS
CHEMICAL REACTIONS
COAL TAR
COMPARATIVE EVALUATIONS
FLUIDS
FUNCTIONAL MODELS
GASES
HIGH TEMPERATURE
MANAGEMENT
MATERIALS RECOVERY
MECHANICAL PROPERTIES
OPTIMIZATION
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
OXIDATION
PILOT PLANTS
PLASTICITY
POLYMERIZATION
PROCESS DEVELOPMENT UNITS
PROCESSING
RECOVERY
SPECIFICATIONS
TAR
VISCOSITY
WASTE MANAGEMENT
WASTE PROCESSING
010500* -- Coal
Lignite
& Peat-- Products & By-Products
AIR
BENCH-SCALE EXPERIMENTS
BINDERS
CHEMICAL REACTIONS
COAL TAR
COMPARATIVE EVALUATIONS
FLUIDS
FUNCTIONAL MODELS
GASES
HIGH TEMPERATURE
MANAGEMENT
MATERIALS RECOVERY
MECHANICAL PROPERTIES
OPTIMIZATION
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
OXIDATION
PILOT PLANTS
PLASTICITY
POLYMERIZATION
PROCESS DEVELOPMENT UNITS
PROCESSING
RECOVERY
SPECIFICATIONS
TAR
VISCOSITY
WASTE MANAGEMENT
WASTE PROCESSING