Process for production of activated carbon fibers

Details Process for production of activated carbon fibers Process for production of activated carbon fibers

C - Chemistry, Metallurgy

01

B

252/24

C01B 31/08 (2006.01) D01F 9/22 (2006.01)

Patent

CA 1104994

ABSTRACT OF THE DISCLOSURE This invention relates to a new process for producing activated carbon fibers of high adsorption capacity. The process comprises oxidizing an acrylonitrile based fiber and then activating the fiber. The acrylonitrile based fiber is a homopolymer of acrylonitrile, a copolymer containing about 60% by weight or more of acrylonitrile, or a mixture of polymers wherein at least 60% by weight of acrylonitrile is present in the mixture. The oxidation is conducted in an oxidizing atmosphere at a temperature of from about 200°C. to about 300°C. while a tension is applied to the fiber until the amount of bonded oxygen reaches about 50% to about 90% of the saturated amount of bonded oxygen to the fiber, wherein the tension applied is such that the shrinkage of the fiber during oxidation reaches about 50% to about 90% of the degree of free shrinkage at the same temperature.

276017

Affiliated with

Also associated with

Rating

Process for production of activated carbon fibers does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for production of activated carbon fibers, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for production of activated carbon fibers will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1084407