refractory ore

The leaching mechanism of niobiuma refractory niobium-tantalum ore by concentrated potassium hydroxide was studied.

实验研究了难分解铌钽矿在高浓度氢氧化钾溶液中浸出过程的机理.

Limonite ore is one of the complex refractory ores and has a low utilization rate.

褐铁矿属于复杂难选的铁矿石之一,其利用率较低.

Pretreatment of arsenical refractory gold ore by pressurized oxidation with lime slurry

石灰湿法加压氧化预处理含砷金矿的研究

Study on the Technological Flow Sheet of processing a Refractory Copper Sulphide Ore

某难选硫化铜矿石选矿工艺流程研究

Greece has been producing refractory grade chromite ore for more than a hundred years.

希腊生产耐火级铬铁矿石已有百余年历史.

Thiosulfate leaching of refractory copper-bearing and low grade oxide ore in Mexico

硫代硫酸盐法浸出墨西哥某低品位、难处理含铜金矿石的研究

Oolitic hematite is considered as one of the most refractory ore type.

鲕状赤铁矿石是目前国内外公认的最难选的铁矿石类型之一.

Flotation of Tonglushan refractory oxidized copper ore using a new-type reagent B 130 was investigated paper.

本文研究了新型选矿药剂B130浮选大冶铜绿山氧化铜矿.

Study on the extraction of gold from refractory arsenical gold ore with the ammoniacal catalytic oxidation-cyanidation process(ⅱ)

氨性催化氧化-氰化法处理含砷难浸金矿的研究（Ⅱ）

At present, gold resources in China is characterized by that the rich mine and manageable ore are becoming scarcer while complex ore, refractory ore and lean ore increasing.

当前，我国金矿资源的特点是富矿、易处理矿日益减少或枯竭，复杂矿石、难处理矿石和贫矿多。

China has become a major country in producing and exporting refractory products and raw materials. Much foreign exchange has been earned. But zircon ore, chrome ore and some high grade refractories still need to be imported from abroad.

我国已成为耐火制品与原料的生产和出口大国，为国家获取了较多外汇，但锆矿、铬矿与少量高级耐火材料仍需要进口。