Rare-earth smelting and separation process mass partition quantity online monitor

Abstract

The invention provides a rare-earth smelting and separation process mass partition quantity online monitor, and belongs to the technical field of rear-earth hydrometallurgy. The online monitor comprises a single-flow-path or multi-flow-path automatic sampling system, an X-ray fluorescence analysis system, a data processing system and an automatic control system. A sampling pump introduces a water phase in a cascade-stage extraction tank into a detection tank, after a sample is conveyed to the detection tank, irradiation is conducted on the sample through X rays generated from an X-ray light tube, and characteristic X-ray fluorescence of rear-earth L series is motivated and received through an SDD-type detector. The detected sample flows into an extraction tank body again through a sample conveying pipeline. The data processing system is connected to the detector of the analyzer through a signal cable and transmits a collected signal to a computer, calculation is conducted through a data processing module of computer software, and then the mass partition quantity of all rear-earth elements of the sample is output and uploaded to a main control room. Online monitoring on partition changes of all the rear-earth elements in the extraction tank of the rear-earth smelting and separation process is achieved, data are accurate and reliable, and the sensitivity is high.

Description

technical field [0001] The invention belongs to the technical field of rare earth hydrometallurgy, and provides an on-line monitor for mass distribution in the rare earth smelting and separation process. Lanthanum (La), cerium (Ce), praseodymium (Pr), neodymium (Nd), samarium (Sm), europium (Eu), gadolinium (Gd), terbium (Tb), dysprosium ( Determination of the distribution content of fifteen elements including Dy), holmium (Ho), erbium (Er), thulium (Tm), ytterbium (Yb), lutetium (Lu), and yttrium (Y). technical background [0002] Because of their excellent magnetic, optical, and electrical properties, rare earth elements play a huge role in improving product performance, increasing product varieties, and increasing production efficiency. It has been widely used in metallurgy, military, petrochemical, glass ceramics, agriculture and new materials and other fields. Rare earth is a unique strategic resource in China, and most of the medium and heavy rare earth resources in ...

AI Technical Summary

Problems solved by technology

[0004] The existing rare earth on-line analysis technology includes fiber optic photometric spectroscopic on-line analyzer, which combines the spectrophotometer and reflection probe into one organically. The optical fiber probe is directly inserted into the tank. The instrument can theoretically measure Pr, Nd, Sm, Eu, Ho , 2, six kinds of rare earth elements; the flow injection online spectrophotometer is similar to this method, using a peristaltic pump to inject samples; there is also a rare earth concentration analyzer, using a radioactive Ba-133 source and a semiconductor detector placed on the same side of the rare earth tank, theoretically It can realize the determination of the total amount of rare earth, but cannot detect the distribution of different elements

However, the above-mentioned technologies are only found in literature reports, and there is no actual industrial application

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