Centrifugal extraction machine wet solvent extraction and separation technology of rb cesium
At present, the development of the emerging industries need the structure and function of the material mainly comes from 'three rare resources, the so-called' three thin 'is the rare metal, scare metal and rare earth metals.
In numerous rare metal elements, rare metals rubidium, cesium and its compounds because of its strong chemical activity and excellent optical performance and is widely used in electronics, glass, chemical, energy, medicine and other fields.
With the rapid development of high-tech industry at home and abroad, rubidium, cesium and its compounds showed great prospects for development, so the demand for rubidium, cesium and its compounds is urgent.
rubidium, cesium in nature reserves, but the content is low, and often symbiosis with other elements of alkali metal lithium, sodium, potassium, and direct sampling analysis on the basis of the existing traditional analysis instrument to achieve, not only the general sensitivity can not meet the requirements, and the background interference is serious, the accuracy is low.
Due to the same group of alkali metal ions have very similar physical and chemical properties, potassium is one of the most serious interference of rubidium, because potassium and rubidium have similar ionic radius, separation and purification so rubidium, cesium have considerable difficulties, the current main methods of separation of rubidium, cesium with fractional crystallization, precipitation, extraction and ion exchange method, etc.
The extraction technology co. , LTD. Zhengzhou days mainly introduce extracting separation rubidium extraction technology.
solvent extraction is research in recent years, rapid progress, and more widely used and the potential of an extraction method, with a quick, large quantity, easy to operate and easy to realize the continuous, etc.
Rubidium, cesium ion can occur with some organic compounds of complexation reaction or with some macromolecular organic reagents on the monovalent cation exchange, therefore can from inorganic phase to organic phase separated from other metal ions, thus to achieve.
Of rubidium, cesium ion has a good performance of organic reagents with phenol alcohols reagents, crown ether, two bitter amine and its derivatives and nitro compounds, including both due to many factors, such as in recent years has been rarely used.
in rb cesium centrifugal extraction machine in the process of extraction and separation operation, the ore after crushing, leaching, the leaching liquid compared with extraction agent according to certain into centrifugal extraction machine, enter the ring gap formed between the drum and shell type mixing zone, with the aid of the rotation of the drum, through the turbine disc and the impeller to make two phase mixing and dispersing quickly, two phase solution fully mass transfer.
Complete mixing and mass transfer process.
mixture under the action of vortex disk into the rotary drum, in the plate to form the bulkhead area, mixture quickly with synchronous rotary drum, in under the action of centrifugal force, the heavier than major phase fluid in the process of upward mobility and gradually away from the drum center on the drum wall;
Small proportion of liquid phase gradually away from the drum wall and on to the center, after clarification of two phase fluid end respectively through their weir plate into the collection chamber and the tube was closed to derivation, respectively, to complete two phase separation process.