TH815A - Process for the separation of non-radioactive transition metal compounds from uranium complexes. Thorium, radium, titanium and earth metals - Google Patents

Abstract

The invention is a modified method for the separation of non-radioactive transition metal compounds from minerals. Of transition metals containing uranium, thorium, radium, titanium and various rare earth metals complexes by the breakdown of crushed ores Then by means of using acid in a manner that dissolves part of the mineral in Liquid part And let one remain in the solid part and let the other remain in the solid.

Claims (1)

1. Process for separation of tantalum metal compounds And / or niobium, which is free from radioactivity from mineral containing substances Or more of the aforementioned metal and also contain at least a complex of substances Substances of selected substances from the group consisting of uranium, thirium, radium, titanium and rare earth metals. Where the crushed ore is broken down And then with hyrofloric acid at high temperature for more than three generations O'clock, where most uranium, thorium and radium compounds are both Depleted remains in the remainder and tantalum and / or niobium. All large concentrations are dissolved in a fluoride complex and then appropriately processed with such hydrofluoric solutions to Separation of niobium compounds And / or tantalum in the said mineral 2. The process in claim 1 where the substance is added Reducing it with hydrofluoric acid to ensure that U (VI) is reduced to U (IV). 3. As in the claim where there is a separate Radium compounds present in solution Niium-Tantalum Almost complete with Through the sludge collector With the addition of barium salts Soluble while containing sulfate ions in it. 4. Process as in claim 1, where there is dissolution. Solid sludge with sulfuric acid concentrated in An oxidized state to replace uranium and Thorium is a water-soluble compound and the solution is then subjected to an appropriate process in order to separate uranium and thorium out. Uranium is released as the main substance from that solution. 6. The process, as in claim 1, where dissolution is selected. Uranium, with the solid residue done Reaction with sodium hydroxide Or other types of alkalis available Sufficient concentration 7. The process as in claim 6, where the oxidizing agent is potassium persulfate 8. The process as in claim 1, where there is a melt Uranium by bringing the remainder of that solid Mixed with aluminum nitrate solution while Add an oxidizing agent containing alkaline ions. 9. The process as in claim 1, where the rest. The solids reacts with 20% sulfuric acid and quartz sand in an oxidized state to make the elements Uranium and thorium enter a solution 1 0. Process as in claim 1, where the compound Tantalum is separated 1 1. The process as in claim 1, where the compound Niobium is separated (11 claims, 2 pages, 0 paintings).