Dephenolization process and apparatus
United States Patent 2786082

Inventors:
Klockman, Otto E.
Publication Date:
03/19/1957
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Assignee:
KOPPERS CO INC
Primary Class:
422/189
Other Classes:
568/762, 568/760, 422/193, 422/234, 261/114.100
International Classes:
C07C37/72; C07C37/00
US Patent References:
2338446Bubble cap shield
2376940Fractionation column
2398213Reducing thermal decomposition in high temperature accumulators
2520391Liquid-liquid contacting