C - Chemistry – Metallurgy – 08 – F
Patent
C - Chemistry, Metallurgy
08
F
402/398
C08F 6/06 (2006.01) B01J 8/00 (2006.01) B01J 19/24 (2006.01) B01J 19/26 (2006.01) C08F 6/10 (2006.01) C08F 6/22 (2006.01)
Patent
CA 1165047
ABSTRACT OF DISCLOSURE Polymers are continuously reccvered from their latexes obtained by polymerization in emulsion by a process comprising the following steps: A) feeding the polymeric latexes containing 10 to 50% by weight of polymer, at a temperature of from 10 to 120°C, through one or more feeding channels, to the narrow zone or to the divergent section of a nozzle in which water vapor flows at sonic or supersonic speed respectively, according to vapor/latex feeding ratios of 0.1-2 Kg of vapor/Kg of latex, where the latex is subdivided by the water vapor into a dispersion of particles; and B) continuously feeding the dispersion obtained in step A) to a tube or an exchanger of the type tube-in-tube directly connected with the diver- gent section of the nozzle where the dispersion, at a temperature of 100-150°C for residence times of from 0.1 to 1 second, maintains a speed of 50-150 m/sec., so providing a dispersion of solid caked particles of polymer and of liquid particles in a vapor phase comprising the unreacted monomers and the water vapor, the vapor phase being separated from the dispersion. by means of known methods.
367185
Govoni Gabriele
Guardigli Pierluigi
Rubichi Gianfranco
Macrae & Co.
Montedison S.p.a.
LandOfFree
Continuous process for recovering polymers from their latexes does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Continuous process for recovering polymers from their latexes, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Continuous process for recovering polymers from their latexes will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-332767