1.
The experimental study on arsenic-bearing refractory gold concentrate in pre-acid roast-cyanide process pilot
难浸含砷炭金精矿预先酸浸-焙烧-氰化工艺实验研究
2.
Technological study on gold extraction from a refractory gold concentrate containing high As and Sb
高砷含锑难浸金精矿提金工艺的研究
3.
Fundamental and technological studies on bioleaching of refractory arsenical gold concentrates by Thiobacillus ferrooxidans;
含砷难处理金矿细菌浸出基础理论及工艺研究
4.
Study and Application of Catalytic Oxidation Acid Leaching Method for Refractory Gold-silver Concentrate Containing Arsenic
含砷难处理金银精矿催化氧化酸浸湿法的研究及应用
5.
Investigation on Roasting-Leaching Technology for an Arsenic-bearing Gold Concentrates in Qinghai Province
青海某含砷金精矿焙烧浸出试验研究
6.
Study on Roasting-Cyanide Leaching of Gold Concentration Containing Arsenic and Sulphur
含砷、硫金精矿焙烧-氰化浸出工艺研究
7.
Experimental study on solidification and leaching toxicity test of arsenic-containing fly ashes
含砷飞灰固化处理及浸出毒性试验研究
8.
Experimental Study in Pretreatment of High-sulfur and High-arsenic Refractory Gold Concentrate by Ozone and Ferric Chloride
臭氧和三氯化铁氧化高硫高砷难浸金精矿的预处理试验研究
9.
Process Study on High-Sulfur and High-arsenic Refractory Gold Concentrate Nitrate Leaching Liguid Purification and Preparation of Nano Iron Oxide
高硫高砷难处理金精矿酸浸液净化及制备纳米氧化铁的研究
10.
Leaching of Potassium From Polyhalite Containing Potassium
从难溶性含钾杂卤石中溶浸法开采钾
11.
Study on Technology and Mechanism of Mechanical Activation Enhancing Leaching of Gold Concentrate Containing Arsenic;
机械活化强化含砷金精矿浸出的工艺及机理研究
12.
But it turns out that the coal contains abnormally high concentrations of arsenic and fluorine.
可是科学家发现，贵州的煤炭中砷与氟的含量异常地高。
13.
It is prohibited to mine the coal with toxic or harmful substances, such as radioactive and arsenic, that exceed the prescribed limits.
禁止开采含放射性和砷等有毒有害物质超过规定标准的煤炭。
14.
Current situations of pretreatment method research of the refractory gold ores with as and carbon
含砷含碳双重难处理金矿石预处理方法研究现状
15.
Study on Change of Polysaccharide Content in Leaching Bacteria During Adsorbing Refractory Gold Ore
难处理金矿吸附浸矿细菌多糖含量变化的研究
16.
COMPREHENSIVE ORE TESTING ON As BEARING REFRACTORY GOLD ORE OF HEICIGOU GOLD MINE IN SUBEI COUNTY
肃北县黑刺沟金矿含砷难选金矿石综合选矿试验研究
17.
Fundamental and Industrialization Investigation on Biooxidation of Arsenic-bearing Refractory Gold Ore;
含砷难处理金矿石生物氧化提金基础与工程化研究
18.
Current Status of Study and Progress of Bacterial Pre-oxidation Process of Refractory Gold Ore Containing Arsenic
含砷难处理金矿石的细菌氧化预处理工艺研究现状及进展