Study on Improvement of Recovery of Gold and Silver from the Copper Dross Smelting in Reverberatory Furnace;
提高铜浮渣反射炉熔炼金银回收率的研究
After that, the copper in leach liquor can be extracted with the ternary extractant mainly containing P204, and the gold and silver in leach residue can be recovered by a process of "cyanidation-replacement of Z.
为避免硫酸烧渣对环境的污染 ,以硫酸烧渣为原料 ,通过添加活性还原剂 ,用废硫酸直接还原浸出铁并制铁黄 ,而后用以P2 0 4为主体的三元萃取剂萃取回收浸液中的铜 ,用全泥氰化和锌粉置换工艺从浸渣中提取金银 ,较经济有效地回收利用了烧渣中的有价金属 ,铁、铜和金的回收率分别达到了 93。
The composition of the multi metal primary ores with gold and silver in Hebei province is complex.
河北某矿石为含金银的多金属原生矿石 ,矿石成分复杂 ,金银与硫化物以及硫化物之间共生关系密切 ,分选难度较大。
The genesis of siliceous rocks in the Changkeng gold-silver deposit, Guangdong Province;
广东省长坑金银矿床硅质岩石成因分析
From south to north there exist copper,molybdenum and gold-silver deposits,copper ore and gold metallization in turn in the studied area,which are distributed as belts in directions WE and NS.
黑龙江鸡东四山林场金银矿床的初步普查结果表明,矿区内主要矿产包括金、银、铜、钼等,并初步控制Ⅰ、Ⅱ号金银矿体,探求金平均品位5。
： Zhilingtou gold－silver deposit is a Yanshania volcanic－subvolcanic lower－median temperature hydrothermal deposit． The REE and Pb，S isotopes indicate that ore－forming material derived from volcanic－subvolcanic hydrothermal solution
本文根据近几年矿床勘探生产的最新成果，以及西矿段的研究成果，通过中西矿段岩矿石稀土元素地球化学特征及铅、硫、碳同位素分析，认为治岭头金银矿床在成因上与火山－次火山热液成因有关。
Preparation of a Compound Healthy Beverage from Balsam Pear, Honeysuckle and Lophatherum Gracile Brongn;
苦瓜、金银花、淡竹叶复合保健饮料的研制
Processing of gingko leaf and honeysuckle drink;
银杏叶金银花保健饮料加工工艺
Study on Extracting Conditions for Flavonoids in the Honeysuckle and Its Leaves;
金银花和叶中黄酮类化合物提取工艺条件的探讨