Title: Method and appts. for concentrating slurried solids
Application Number: 99816581 Application Date: 1999.12.22
Publication Number: 1383388 Publication Date: 2002.12.04
Approval Pub. Date: 2005.04.20 Granted Pub. Date: 2005.04.20
International Classifi-cation: B01D3/06;B01D3/10;C13F1/00;B01D1/00;D21C11/10
Applicant(s) Name: Minerals Tech Inc Address:
Inventor(s) Name: G.D. Erdman
Attorney & Agent: long chuangong
Abstract:
    A method and apparatus for concentrating slurries by removing liquid in a single effect unit maintained under vacuum to effect low temperature flashing of the liquid is disclosed. The single effect unit is a single flash column with separate recirculation loops, one to preheat incoming slurry for concentration and a separate loop for withdrawal of concentrated slurry. Vapor from the flash column can be treated to separate liquid from other components in the vapor.
Time: 12
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