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发明名称
RECOVERY OF GOLD, SILVER AND THE PLATINUM GROUP METALS WITH VARIOUS LEACHANTS AT LOW PULP DENSITIES
摘要
申请公布号
AU631413(B2)
申请公布日期
1992.11.26
申请号
AU19900052606
申请日期
1990.03.06
申请人
DEAN ROBERT BUTLER
发明人
DEAN ROBERT BUTLER
分类号
C22B3/06;C22B3/12;C22B3/22;C22B3/24;C22B3/42;C22B3/46;C22B11/06;C22B11/08
主分类号
C22B3/06
代理机构
代理人
主权项
地址
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ANALYSIS METHOD FOR INFORMATION AND PRODUCT
Process for producing drospirenone (6beta, 7beta; 15beta, 16beta-dimethylene-3-oxo-17alpha-pregn-4-en- 21, 17-carbolactone, drsp), as well as 7aspire(3-hydroxy-1-propyl)- 6beta, 7beta, 15beta, 16beta-dimethylene- 5beta-androstane-3beta, 5, 17beta-triol /zk 92836) and 6beta, 7beta; 15beta, 16beta-dimethylene-5beta hydroxy-4-oxo- 17alpha-androstane-21, 17-carbolactone
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