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System and method for processing of minerals containing the lanthanide series and production of rare earth oxides

一种稀土氧化物、镧系元素的技术，应用在稀土金属氧化物/氢氧化物、化学仪器和方法、稀土金属化合物等方向，能够解决缺少不同元件和操作步骤等问题

Active Publication Date: 2019-10-25
REE UNO SPA
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the described systems and methods are very basic, lacking the different elements and operating steps for an efficient and continuous process

Method used

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  • System and method for processing of minerals containing the lanthanide series and production of rare earth oxides
  • System and method for processing of minerals containing the lanthanide series and production of rare earth oxides
  • System and method for processing of minerals containing the lanthanide series and production of rare earth oxides

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Embodiment Construction

[0034] Such as Figure 1-Figure 5 As shown, the present invention relates to systems and methods for processing lanthanide minerals and production of rare earth oxides that allow fully enclosed and continuous processing of the different materials and desorbents involved in the process, thus increasing extraction efficiency and avoiding environmental Danger.

[0035] Method of the present invention comprises steps:

[0036] a) receipt and handling of raw materials (110);

[0037] b) desorbing the product of interest (120) through multiple mixing and reaction stages in which the raw material is contacted counter-currently with a stream of desorbent solution;

[0038] c) separating fine solids (130);

[0039] d) precipitating secondary minerals by using the first reaction solution (140);

[0040] e) Precipitating the rare earth carbonate (150) by using the second reaction solution; and

[0041] f) drying and calcining said carbonates to obtain rare earth oxides;

[0042] Wh...

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Abstract

The invention relates to a system and a method for the processing of minerals containing the lanthanide series and the production of rare earth oxides, which allow a completely closed and continuous treatment of the different materials and desorbent agents involved in the process, thus improving the efficiency in the extraction and avoiding environmental risks associated. The method comprising thesteps of: reception and conditioning of the raw material; desorption of valuable product through a plurality of mixing and reaction stages in which the raw material is contacted in countercurrent with a stream of desorbent solution; separation of fine solids; precipitation of secondary minerals through the use of a first reactive solution; precipitation of rare earth carbonates through the use ofa second reactive solution; and drying and roasting of the rare earth carbonates to obtain rare earth oxides; wherein the method further comprises a secondary process that allows further processing of the residual mineral, and a dewatering and washing step wherein the residual mineral from the desorption step is washed and a lanthanide-containing liquid is recovered.

Description

technical field [0001] The present invention relates to the extraction and processing industry of lanthanide elements. In particular, the application relates to a fully enclosed, continuous processing method for the extraction, purification and production of lanthanide oxides, with the aim of increasing ore recovery and reducing environmental impact in production areas. Background technique [0002] Interest in rare earths, especially the lanthanides, has increased substantially in recent years, mainly because of their uses associated with technological advancements. These elements can be used for a variety of purposes, such as catalytic converters in vehicles, wind turbine generators, electronic equipment, and even on banknotes that detect counterfeiting through ultraviolet radiation. [0003] However, the extraction of these elements is relatively complicated because in ore reservoirs, these elements are usually mixed with other geological materials, making it difficult t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/10C01F1/00C01F17/00C01F17/206
CPCB01J23/10C22B3/44C22B59/00C01F17/247C01F17/206Y02P10/20B01J6/001
Inventor 阿图罗·何塞·多明戈·阿尔博诺兹·瓦鞠思德阿图罗·帕特里西奥·洛克·努涅斯
Owner REE UNO SPA
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