SOLVENT PRETREATMENT OF COAL TO IMPROVE COKE STRENGTH

An improved process for making metallurgical coke is provided which enables the use of coals that ordinarily do not yield coke of expected stability based on the rank of the coal. The comminuted coal is pretreated by contacting and reacting the coal with a halogenated hydrocarbon liquid, particularl...

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Bibliographic Details
Main Authors KNOERZER, JEROME J, DUBROFF, WILLIAM, KAEGI, DENNIS D, SPEARIN, ELLIOTT Y
Format Patent
LanguageEnglish
French
Published 28.04.1987
Edition4
Subjects
CHEMISTRY
DESTRUCTIVE DISTILLATION OF CARBONAGEOUS MATERIALS FORPRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
FUELS
LUBRICANTS
METALLURGY
PEAT
PETROLEUM, GAS OR COKE INDUSTRIES
TECHNICAL GASES CONTAINING CARBON MONOXIDE
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Summary:An improved process for making metallurgical coke is provided which enables the use of coals that ordinarily do not yield coke of expected stability based on the rank of the coal. The comminuted coal is pretreated by contacting and reacting the coal with a halogenated hydrocarbon liquid, particularly perchloroethylene, and the pretreated coal is thereafter subjected to high temperature carbonization.
Bibliography:Application Number: CA19840450493