2 results about "Natural uranium" patented technology

A method for separating hydrogenated kerosene and TBP in a natural uranium extractant includes the following steps: First, at room temperature, take 20 mL of the uranium-containing mixed organic solvent to be treated and mix it thoroughly with 11–14.5 mol / L analytical grade phosphoric acid at a volume ratio of 1:1–1:2 for 5–10 min, with 1–5 separation stages, and allow the reaction to stand at 20–30°C. After standing, take the lower liquid phase, which is an H3PO4·nTBP solution, and the upper liquid phase is hydrogenated kerosene. At this point, the hydrogenated kerosene content in the upper liquid after separation can reach over 97%. Second, add 2–3 mol / L nitric acid aqueous solution to the obtained H3PO4·nTBP solution, with a two-phase flow ratio of 1:1–1:2 and 2–3 separation stages, allowing the reaction to stand at 20–30°C. Take the supernatant, which is the TBP product liquid, thus achieving separation. Third, prepare an extractant using the separated TBP and hydrogenated kerosene, and conduct a comparative experiment with fresh extractant.

The application discloses a kind of natural uranium supply to the evaluation method and equipment of long-term guarantee degree in nuclear power, belong to mineral resources guarantee technical field.The method takes primary uranium source and secondary uranium source joint supply as core analysis dimension, while giving consideration to quantity and quality, establishes evaluation index system, realizes the comprehensive quantitative analysis and prediction of the guarantee degree of natural uranium resources needed for nuclear power development by standardization evaluation process;The standardization evaluation process includes two evaluation processes of medium-term evaluation and long-term evaluation;The medium-term evaluation priority evaluation is the guarantee capacity of producing mine, and the long-term evaluation is based on the results of the medium-term evaluation Comprehensive evaluation is carried out by combining planned mine and potential mine.The present application can realize the quantitative evaluation of natural uranium supply guarantee for nuclear power, with high accuracy and strong operability.