Microwave drying process for synthetic polymers

Details Microwave drying process for synthetic polymers Microwave drying process for synthetic polymers

1971-11-18

1976-08-31

Myhre, Charles J.

Drying and gas or vapor contact with solids

Apparatus

With means to treat gas or vapor

F26B 334

Patent

active

039770893

ABSTRACT:
Volatile polar vehicles such as water or organic solvents, are removed from nonpolar materials by passing said material through at least one pneumatic conveyor resonating cavity operating at a microwave frequency of about 600 to about 50,000 MHZ. For example, a polymer such as polyvinyl chloride may be dried by conveying the polymer through said pneumatic conveyor operating at a frequency of 915 MHZ for a time sufficient to reduce the volatiles content to about 5 wt. % and subsequently conveying the partially dried material through a second pneumatic conveyor resonating cavity operating at a microwave frequency of 2450 MHZ for a time sufficient to reduce the polar vehicle content to below 0.5 wt. %. The resonating cavities may constitute a single pneumatic conveyor having zones operating at different frequencies, said zones being isolated from one another by microwave suppressors such as "eggcrate" type suppressors. Alternately, several pneumatic conveyor systems, each operating at a different frequency, may be used.

REFERENCES:
patent: 3528179 (1970-09-01), Smith

Affiliated with

Also associated with

Rating

Microwave drying process for synthetic polymers does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Microwave drying process for synthetic polymers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Microwave drying process for synthetic polymers will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1807375