Title: Silica-gel removing and fluorine recovering method and apparatus
Application Number: 93116470 Application Date: 1993.08.21
Publication Number: 1086460 Publication Date: 1994.05.11
Approval Pub. Date: Granted Pub. Date: 1997.11.26
International Classifi-cation: B01D53/68,C05B1/00
Applicant(s) Name: Shi Wenjie Address: 050081
Inventor(s) Name:
Attorney & Agent: ZHAO CHENGMAN
Abstract:
     The process and apparatus for recovering fluorine and removing silicagel during production of P fertilizer uses whole counter-flow suction route instead of partial one to form reasonable concentration and temp gradients of solution, so having high recovery efficiency and less environmental pollution. It features use of gravity flow process and open aqueduct, internal shower in gas tube, suction tower and defoamer under water surface in circulating tank and ceramic ring filler.
Time: 3