FROM TUNGSTEN CONCENTRATES AND SCRAP TO HIGHLY PURE AMMONIUM PARATUNGSTATE (APT)

被引：64
作者：
LASSNER, E
机构：
[1] Sandgasse 23A
来源：
INTERNATIONAL JOURNAL OF REFRACTORY METALS & HARD MATERIALS | 1995年 / 13卷 / 1-3期
关键词：
D O I：
10.1016/0263-4368(95)00002-X
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
This paper describes the modern methods of the conversion of scheelite and wolframite ore concentrates, as well as tungsten scrap materials, to ammonium paratungstate (APT) of high purity via the following production steps: calcination of ore concentrates and oxidation of scrap, pressure digestion, purification steps, conversion of sodium to ammonium tungstate and APT crystallization.
引用
收藏
页码：35 / 44
页数：10
相关论文
共 44 条
[1]  
BECKSTEAD LW, 1982, Patent No. 4328190
[2]  
Bellingham A.I., 1976, U.S. Patent, Patent No. 3939245
[3]  
Blair B., 1966, U. S. Patent, Patent No. [3,256,057, 3256057]
[4]  
BRYSON AW, 1976, HYDROMETALLURGY, V2, P1985
[5]  
GODDARD JB, 1984, SME AIME ANN M LOS A
[6]  
GODDARD JB, 1982, Patent No. 4326061
[7]  
Hogsett RF, 1982, US Patent., Patent No. 4338287
[8]   STUDY OF SOLUBLE TUNGSTATE SPECIES BY SOLVENT EXTRACTION [J].
KIM, TK ;
MOONEY, RW ;
CHIOLA, V .
SEPARATION SCIENCE, 1968, 3 (05) :467-&
[9]  
KIM TK, 1983, Patent No. 4379126
[10]  
KIM TK, 1979, Patent No. 4175109
12345