公开(公告)号：US3819805A

公开(公告)日：1974-06-25

申请号：US13399671

申请日：1971-04-14

Applicant: ALLIED CHEM

Inventor： GRAVES C ,  SOPCHAK P

IPC: B03B7/00 ,  C01D7/37 ,  C01D7/12 ,  C01D7/24

CPC classification number: C01D7/37 ,  B03B7/00

Abstract: A PROCESS FOR BENEFICIATING TRONA ORE FOR PRODUCING SODA ASH, WHICH COMPRISES CRUSHING THE ORE, SEPARATING THE ORE BY OPTICAL-MECHANICAL SORTING MEANS, RECOVERING THE DESIRED TRONA ORE FRACTION AND CONVERTING SAID BENEFICIATED FRACTION TO SODA ASH BY CIRCULATION.