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1.发明授权Deactivation of color forming and foam stabilizing bodies in sodium carbonate produced from trona 失效在天然碱生产的碳酸钠中失色成色和泡沫稳定体
公开(公告)号：US2989369A
公开(公告)日：1961-06-20
申请号：US63707957
申请日：1957-01-30
Applicant: FMC CORP
Inventor： OSBORNE ROY T
IPC: C01D7/22
CPC classification number: C01D7/22
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公开(公告)号：US2812245A
公开(公告)日：1957-11-05
申请号：US41027354
申请日：1954-02-15
Applicant: FMC CORP
Inventor： HAINES GEORGE S , HEINDEL FRANK D , OSBORNE ROY T
IPC: C01B17/36
CPC classification number: C01B17/36 , C01P2006/80
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