How can we get rb

How can we get rb? This problem could be a lot of people don't know, here is one way to get the rubidium:

Determining the solvent apple from material containing rubidium into pure rubidium chloride rubidium extraction method. Rubidium is soluble in water phase and organic phase between the competition process, the whole process in the box mixer-settler is complete. Rb from the cesium extraction residue extracted cesium) determining the solvent (see leather.

Cesium rubidium and cesium usually associated together, extraction separation and extraction of the rubidium must be considered. Extracting rb and cs solvent extraction separation method is developed in the 1960 s, it can separate complex mixture of alkali metal coexist, in many cases the score step precipitation rb cesium more quickly, with simple equipments, short process, easy to automatic control, the advantages of large quantity and safe operation, low cost, is considered to be a better separation and extraction of rubidium and cesium.

Technological process is mainly composed of extraction, washing, and the extraction of three basic steps.

Extraction of organic phase and water phase (cesium extraction residue) according to certain than 2 ~ 3 min contact extraction equilibrium. By extraction of rubidium from water phase to organic phase and two phase separation for clarification. Extraction compared with the composition of aqueous slurry, alkalinity, concentration, and concentration of organic phase. Organic phase concentration in a cesium and extraction under the same conditions, high water alkalinity (OH - 1.0 ~ 1.5 mol/L) extraction of rubidium more efficient; Greater than (o: a = 3 ~ 3.5) on extraction efficiency of rubidium is also higher.

Organic phase usually consists of leather take agent and diluent. BAMBP and t - BAMBP is the main extraction agent, rubidium their isomers, is a senior substitute phenol (ROH). Both the extraction properties of the rubidium close. Both extractant volatile small, small water soluble, the rubidium extraction performance is good, extraction selectivity is stronger, quick and easy to reverse extraction. Compared with BAMBP, t - BAMBP synthesis of high yield, low prices, China's existing goods, are used to from cesium extraction residue extraction rubidium ideal extractant. BAMBP and t - BAMBP on selectivity of rubidium extraction after cesium, which is better than that of potassium, sodium. Therefore, it is easy to in a counter-current mixer-settler extraction tank rubidium and separation of potassium and sodium.