Distillation: processes – thermolytic – With physical separation of solid by-product from removed...
Patent
1985-07-17
1987-08-11
Richman, Barry S.
Distillation: processes, thermolytic
With physical separation of solid by-product from removed...
201 25, 201 25, 585241, C07C 400, C10B 5704
Patent
active
046860070
ABSTRACT:
A polymeric material containing solids in the form of metal and/or cord lumps is partially thermally decomposed to produce a suspension of the polymeric material containing solids in the form of metal and/or cord lumps. Then, the suspension with the solids is directed to a separator, which may be an inclined conveyor, where the solids and the suspension are separated. The separated polymeric material then is thermally decomposed completely. In the separator, the separated solids may be treated by flushing the solids on the conveyor with a preheated solvent, followed by applying steam to the solids and finally drying the solids on the conveyor. Thermal decomposition of the separated polymeric material is completed in a vertical distillation column having a lower liquid phase and an upper vapor-gas phase. A preheated solvent, which may be preheated by the polymeric material, is injected into the upper vapor-gas phase along ascending spiral lines, which can be in the form of a double helix, to prevent deposition of solid products on the inner walls of the column.
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Khimanych Anatoly P.
Kovalerchik Vulf P.
Lyakhevich Genrikh D.
Suzansky Vasily G.
Belorussky Politekhnichesky Institut
Richman Barry S.
Woodard Joye L.
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