• Created: 07.05.2015
• Updated: 03.12.2020
• Read: 2240

Rhenium extraction method from solutions

Developed and successfully implemented a method of rhenium extraction from acidic nitrate-sulfate uranium-containing solutions by sorption method on NMMC facilities.

Task of the invention: selectivity improving of rhenium sorption in regards such admixture as uranium and iron, and also stabilization of the resin capacity on rhenium in the sorption-desorption cycles.

The method is suggested for extraction the rhenium from sulphate - nitrate solutions with uranium containing, iron and rhenium, including rhenium sorption with using weak basic anionite based on styrene and divinylbenzene marked CAP 200 and rhenium desorption with aqueous ammonia. Before rhenium desorption required anion is treated with sulfuric acid with concentration of 10-50 g / l, followed by washing the anion with water.

Manufacturing technology patented by Republic of Uzbekistan № IAP 04651 UZ. There is a “know how” for this technology. Technology transfer is possible only on licensing agreement.