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Many minerals containing tantalum, tantalum but as mineral (Ta / Nb≥1) is not many, the main industrial value tantalite ore, microlite, in addition to titanium niobium tantalum, tin, manganese tantalum, tantalum weight Iron ore, antimony tin and so on.
Since bismuth is similar to the crystal chemistry of some rare elements such as uranium , thorium , rare earth, titanium, zirconium , tungsten and common elements such as tin, calcium, iron and manganese, it is prone to the phenomenon of equivalent and heterogeneous isomorphism, resulting in 铌There are more than 130 kinds of minerals, and the composition is complex. It is difficult to unify the mineral classification. It is more reasonable to use the chemical composition and crystal structure as the classification basis. According to this principle, the strontium minerals can be divided into eleven groups: strontium iron. mine - group tantalite, pyrochlore - microlite group, dilute black gold ore - dilute gold complex aromatic, aliphatic weight tantalite, niobium, tantalum, antimony, group aeschynite group, xenotime family of niobium, tantalum,铌 silicate mineral family.
Although there are many kinds of strontium minerals, due to the complex composition of minerals, it is difficult to separate and purify the industry, which limits the utilization value of many minerals. The cerium minerals with industrial value mainly include coltan, pyrochlore and brown peony. Antimony ore, black gold ore, easy to solve stone, ilmenite rutile, etc.
The cerium-containing minerals are mainly strontium iron and pyrochlore. The strontium iron ore is called coltan, and it is called strontium iron ore.
The coltan and pyrochlore can be collected by a cationic collector , and an anionic collector can also be used. The flotation effect is better with a complex collector (such as sodium hydroxy citrate).
Using oleic acid as a collector, the strontium ore is best in the pH value of 6-8, and the coltan and coltan are inhibited in the acidic medium, while quartz , feldspar and dolomite are in the The planktonic properties are not good at any pH. Therefore, when pH=6-8, oleic acid is used as a collector, and it is easy to separate the gangue from quartz and other gangue.
After treating the antimony ore with 10% acid (sulfuric acid), it becomes easy to float. With the increase of the amount of acid, the floatability of the antimony ore is increased, and the effect of using sulfuric acid is better than that of using hydrochloric acid. Treatment with 1% hydrofluoric acid is similar to sulfuric acid.
When oleic acid is used as a collector and the concentration of sodium sulfide is 10-20 mg/l, the antimony ore and part of the gangue can be suppressed. When a cationic collector is used, sodium sulfide initially activates some minerals such as antimony ore, but as its amount increases, the recovery of antimony ore decreases. When lanthanum is used to capture bismuth ore, a small amount of sodium silicate can suppress all minerals.
1. Simple exploration of mineral processing test - before the purchase of mineral rights, meet the investment analysis and reduce the initial value assessment of investment risk.
2. Feasibility test of ore - It is used for detailed geological analysis and analysis, to meet the evaluation certificate, and to determine the reasonable process and reasonable process indicators.
3, system process test - practically used before the construction of the plant, meet the design finalization, find the law to determine the best process indicators.
4, technical research and research - the use of mine disaster technology is unsolved, to meet the improvement of efficiency, product failure to recover low cost and high time.
5, process flow verification test - the actual use of ore properties comparison, to meet the choice of pharmaceutical plants, the mine has different ores to determine the adaptability.
6, process flow test - practically used to produce the factory, to meet the current factory investigation, the selection of factory physical examination analysis and plant selection.
1, determine the type of ore ---- need to do spectral analysis and rare element test.
2, to identify the specific nature of the ore - need to do multi-element analysis to determine the content of valuable and harmful elements.
3, to find out the relationship between minerals in the ore, content and composition - the need to do rock ore identification has important guiding significance for mineral processing.
4. Determine the specific existence form and distribution of elements in the ore. It is necessary to do phase analysis and have guiding significance for mineral processing.
5, concentrate, tailings test --- need to do valuable elements and harmful elements.
6, the original ore and concentrate water, the proportion of ore is determined - the actual measurement of mineral processing.
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