Centrifugal extractors are used for wet extraction and separation of tantalum and niobium. Centrifugal extractors have good effects in hydrometallurgical extraction, high extraction rates, and large processing volumes, and are widely recognized by enterprises.
Tantalum And Niobium Extraction And Separation Method
At present, in the field of hydrometallurgy, the methods for extracting and separating tantalum and niobium include fluorine complex salt step crystallization method, organic solvent extraction method, ion exchange method, chloride distillation method, selective reduction method, etc. Some of these extraction and separation methods are traditional old-fashioned extraction methods, and some are extended extraction and separation methods, all of which often have different problems in actual operation. With the generation of a large amount of experimental data and the continuous development of technical processes, the method with better application and better effect is solvent extraction.
Solvent extraction can not only effectively separate tantalum and niobium, but also remove other impurities such as silicon, titanium, iron, manganese, etc., so as to obtain high-purity tantalum compounds. When extracting and separating tantalum and niobium, co-extraction or separate extraction processes can be used according to the different ratios of tantalum and niobium in the raw materials. At present, the co-extraction process is widely used at home and abroad. That is, tantalum and niobium are first extracted into the organic phase at the same time, and then tantalum and niobium are separated from the organic phase. This co-extraction method not only simplifies the equipment, but also facilitates operation.
Tantalum And Niobium Extraction And Separation Equipment
When using solvent extraction, choose CWL-M centrifugal extractor. Tantalum and niobium extraction and separation equipment can choose the new CWL-M centrifugal extractor developed and produced by Zhengzhou Tiei Extraction.Tiei provides small-scale experiments, first conduct experimental verification, and then customize industrial equipment.
Tantalum And Niobium Extraction And Separation Process
Take the extraction and separation of tantalum-niobium concentrate as an example. First, the concentrate is dissolved and acidified with acid to obtain the slurry to be extracted. Then the extractant is added for extraction, and the organic phase containing tantalum and niobium enters the pickling section and is washed with sulfuric acid solution. The residual liquid and the pickling residual liquid are comprehensively treated. The organic phase after pickling enters the niobium stripping section and is stripped with sulfuric acid solution to obtain a qualified niobium-containing solution. The organic phase after stripping niobium is stripped with pure water to obtain a qualified tantalum-containing solution. The organic phase after stripping niobium is deeply treated and can be recycled.
The above is an introduction to the method, process flow and equipment for wet extraction and separation of tantalum and niobium. If you want to know more details about the centrifugal extractor, welcome consult us.
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