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1.发明授权Process for making an anhydrous alumina product consisting principally of alpha alumina from alumina hydrate 失效制备主要由氧化铝水合物的α氧化铝组成的无水氧化铝产品的方法
公开(公告)号：US3336109A
公开(公告)日：1967-08-15
申请号：US32934463
申请日：1963-12-05
Applicant: ELECTRO CHIMIE METAL
Inventor： DU BELLAY MARC GRIFFON , JOSEPH SANLAVILLE
IPC: C01F7/44
CPC classification number: C01F7/445
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2.发明授权Method of selectively separating hydrofluoric acid from its solution with other hydrohalogenic acids 失效从其溶液中选择性分离氢氟酸与其他氢卤酸的方法
公开(公告)号：US2920941A
公开(公告)日：1960-01-12
申请号：US58443456
申请日：1956-05-14
Applicant: ELECTRO CHIMIE METAL
Inventor： JOSEPH SANLAVILLE , LOUIS FOULLETIER
CPC classification number: C01B7/197 , H01J13/02 , H01J2893/0073
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