Solvent decomposition of several waste plastics
Decomposition in solvent: random polypropylene, atactic polystyrene, novolac, non-curing resin, curable phenolic resin and polycarbonate, decomposed in tetralin or α-methylbenzene, the reaction temperature is 300 ~400 ° C, a natural low molecular compound.
Most of the natural polystyrene is toluene, ethylbenzene and styrene; from random polypropylene natural C6 ~ C9, compounds; from phenolic resin and cured phenolic resin are mostly phenol and cresol; The natural life of carbonate is similar to phenolic resin.
The decomposition reaction of polyvinyl chloride is carried out by using nitrobenzene, tricresyl phosphite, benzoate and dioctyl phthalate as a solvent to react with a polyene (hydrocarbon) and hydrogen chloride. When the reaction temperature is 207 ° C, the reaction of dehydrochlorination can be sufficiently promoted by using triphenyl phosphate or tricresyl phosphite as a solvent.
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