Patent · US Expired

Process and apparatus for drying chlorinated polymers

US4241514A · kind A · utility

3Cited by
3References
5Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJan 8, 1979
Grant dateDec 30, 1980
Priority date—
Expiry dateJan 8, 1999

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF26B20/00
  • WIPO fieldChemical engineering
  • WIPO sectorChemistry

Abstract

Moist chlorinated polymers, which are separated from an aqueous suspension, are dried. To this end the moist polymers are pre-dried in a centrifugation zone and the pre-dried polymers are completely dried in a fluidization zone which is arranged downstream of the centrifugation zone and in which a bed of fluidized material is continually maintained. The apparatus used for carrying out the drying process comprises a centrifugal nozzle structure which has a discharge outlet associated with it and a fluidized bed drier provided with a closable discharge outlet. The discharge outlet of the centrifugal nozzle structure opens into the upper portion of the fluidized bed drier.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.