论文部分内容阅读
日本靜崗县宇久須产的明矾石經600℃焙烧,将約400公斤的焙烧矿(含Ga00035％)用稀硝酸进行两段反流分解取得富鎵渣,再經盐酸分解浸出,然后用TBP萃取得到含有少量铁(Ⅲ)的鎵濃縮液。同鎵伴随的铁(Ⅲ)用电解还原萃取和苛性钠处理,使之完全分离。最后,电解鎵的苛性钠溶液制取金属鎵,得到6.6克純度99.99％的金屬鎵。另外将204公斤英屬圭亚那产的鋁土矿經500℃焙燒3小时,将稀盐酸分解焙烧矿所得到的分解液通过強碱性阴离子交换柱,再以微盐酸酸性水溶离被吸附的鎵,則得到含有少量铁(Ⅲ)的鎵濃縮液43.6升(每毫升含0.61毫克Ga,21.4毫克Fe(Ⅲ)和7.7毫克Al)。以后制取金屬鎵的过程与明矾石相同。
Aobushi, Japan, to be produced for a long time to be produced by calcination at 600 ℃, about 400 kg roasted ore (containing Ga00035%) with dilute nitric acid for two-stage regurgitant decomposition of Ga-rich slag obtained by hydrochloric acid decomposition leaching, and then extracted with TBP A gallium concentrate containing a small amount of iron (III) was obtained. The same gallium accompanied by iron (Ⅲ) with electrolytic reduction extraction and caustic soda, so that the complete separation. Finally, gallium metal electrolytic gallium hydroxide solution to obtain 6.6 grams of 99.99% purity of metal gallium. In addition, 204 kg of bauxite produced in British Guyana was calcined at 500 ° C for 3 hours, the decomposed liquid obtained by decomposing and diluting hydrochloric acid into roasted ore was passed through a strongly basic anion exchange column, and the adsorbed gallium was eluted with acidic water of micro-hydrochloric acid, 43.6 liters (0.61 mg Ga, 21.4 mg Fe (III) and 7.7 mg Al per ml) of gallium concentrate containing a small amount of iron (III) were obtained. After the process of preparing metal gallium and alunite the same.