Chemical apparatus and process disinfecting – deodorizing – preser – Chemical reactor – Organic polymerization
Patent
1996-11-27
1998-05-12
Wu, David W.
Chemical apparatus and process disinfecting, deodorizing, preser
Chemical reactor
Organic polymerization
422131, 422135, C08F 218
Patent
active
057500797
ABSTRACT:
A polymerization apparatus used, particularly, in suspension polymerization of vinyl chloride, comprising a polymerization vessel (1) having a substantially cylindrical inner space, said inner space of said polymerization vessel being provided with a plurality of baffles (5) comprising vertically extending pipes, and serpentine pipelines (6) each of which is placed between two adjacent baffles and is extended in a serpentine fashion along the polymerization vessel inner wall from the lower part to the upper part of the polymerization vessel, and a refrigerant being passed through said baffles and said serpentine pipelines. High-cooling performance can be obtained, a high-speed reaction in a large-sized polymerization vessel becomes possible, and a stable polymerization reaction can be carried out. A high-quality and uniform polymer that has few fish eyes and has a high bulk specific gravity can be obtained.
REFERENCES:
patent: 2459636 (1949-01-01), Fenney
patent: 3931131 (1976-01-01), Noziri et al.
patent: 4698211 (1987-10-01), Storey et al.
Amano Tadashi
Nakajima Kikuo
Ohnishi Shuji
Tanifuji Yoichi
Ueda Takuya
Shin-Etsu Chemical Co. , Ltd.
Wu David W.
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