Nowadays, gravity concentration is used to recover fine wolframite, but the recovery of wolframite is lower than 45%.
现阶段，我国细粒级黑钨矿的回收主要采用重选法，其中钨的回收率一般在45%以下，损失率较大。
Here are reported in detail the present case and future tendency of Magnetic dressing, flotation, and gravity concentration at home and Abroad.
详细介绍了国内外磁选、浮选、重选设备的现状与发展趋势。
At present, most of Ta-Nb ores are processed by use of gravity concentration, with which the recovery of fine-grained Ta-Nb mineral is very low.
目前钽铌矿的选矿多以重选为主，但重选法选别细粒钽铌矿的回收率非常低。
Better separation indices can be obtained by singular gravity concentration or flotation method and both of combination flowsheet, and gets effectively rid of carbon.
采用单一重选、单一浮选以及重浮联合流程均能有效除碳，取得较好的选别技术指标。
Through laboratory test work, determined processing flowsheet is gravity concentration-roasting- chemistry bleaching. By it, different grades of products were gained.
通过试验研究，贵州硬质高岭土矿适于采用重选— 焙烧—化学漂白除铁的工艺流程来加工处理，可以得到不同级别的高岭土产品。
The machine is widely used in classification Tungsten, Tin, Tantalum, Niobium, Rare Metals, Noble Metals, Iron, Manganese Ore and Coal ore, it is the main equipment of gravity concentration.
广泛应用于钨、锡、钽铌、稀有金属、贵重金属、铁、锰矿石和煤矿石的选别，是重力选矿的主要设备。
The machine is widely used in classification Tungsten, Tin, Tantalum, Niobium, Rare Metals, Noble Metals, Iron, Manganese Ore and Coal ore, it is the main equipment of gravity concentration.
广泛应用于钨、锡、钽铌、稀有金属、贵重金属、铁、锰矿石和煤矿石的选别，是重力选矿的主要设备。
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