Metal removal from comminuted fibrous material during feeding

Details Metal removal from comminuted fibrous material during feeding Metal removal from comminuted fibrous material during feeding

D - Textiles, Paper

21

C

D21C 1/00 (2006.01) D21C 1/04 (2006.01) D21C 7/06 (2006.01)

Patent

CA 2345759

A system and method for feeding a slurry of comminuted cellulosic fibrous material such as wood chips to the top of a treatment vessel such as a continuous digester also treat the material to remove metals before digestion. During pumping of the slurry with at least first and second series connected pumps, at or upstream of at least one of the pumps chemicals (acids and/or chelating agents) which dissolve the metals in the material are added, and preferably some of the liquid is removed so as to purge at least about 10% (e.g. about 20-80%) of the metals in the material. The metal removal preferably takes place substantially immediately before alkaline digestion.

Affiliated with

Also associated with

Rating

Metal removal from comminuted fibrous material during feeding does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Metal removal from comminuted fibrous material during feeding, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Metal removal from comminuted fibrous material during feeding will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-2080176