Dissolving and oxidizing device for recovering rare earth from rare earth oxide

Abstract

The invention relates to the technical field of rare earth recovery, and particularly relates to a dissolving and oxidizing device for recovering rare earth from rare earth oxide. The dissolving and oxidizing device comprises a housing sleeve, a reaction cylinder, a heating mechanism, a stirring mechanism, a cleaning mechanism and a filtering mechanism, wherein a reaction cavity is formed in the housing sleeve; a heat conduction pad is arranged at the lower part of the reaction cavity; the cleaning mechanism comprises a first cleaning assembly, a second cleaning assembly and a driving assembly; the driving assembly is arranged at the upper end of the housing sleeve and is connected with the upper end of the first cleaning assembly; an observation opening and a connecting opening are formedin the side wall of the housing sleeve; a feeding pipe is arranged at the upper end of the housing sleeve; a discharging pipe is arranged at the lower end of the reaction cylinder; the lower end of the discharging pipe extends to the lower end of the housing sleeve; and a control valve is arranged on the discharging pipe. The dissolving and oxidizing device can be automatically cleaned and is simple to operate; the filtering mechanism is arranged, so that a solvent and generated precipitates can be separated, and the subsequent recovery operation of the rare earth is facilitated; and a filterscreen can be automatically cleaned, so that the operation is convenient.

Description

technical field [0001] The invention relates to the technical field of rare earth recovery, in particular to a dissolution and oxidation equipment for recovery of rare earth from rare earth oxides. Background technique [0002] Rare earth is a collective term for 17 chemical elements including scandium, yttrium and lanthanides in group III of the periodic table. It generally exists in the form of oxides and is a non-renewable resource. Rare earths become useful materials, and the process is complex, cumbersome and expensive, hence the name "rare earths". Therefore, the recycling of rare earth oxides is one of the important means to save rare earth resources. It is a prerequisite step to dissolve and oxidize rare earth oxides during the recycling process. [0003] Chinese Patent No. CN108165739B discloses a dissolving and oxidizing device for recovering rare earth from rare earth oxides. The technical problem to be solved by the present invention is to provide a dissolvin...

AI Technical Summary

Problems solved by technology

However, the above-mentioned patents still have the following deficiencies in use, first; the above-mentioned patents cannot be effectively heated and kept warm when in use, and rare earth oxides can be heated to a certain temperature when they are dissolved and oxidized. Therefore, the above-mentioned patent function is insufficient

Second; the above patents do not have a corresponding cleaning mechanism after use, making it difficult to clean the equipment

Thirdly, new precipitates will be formed during the dissolution and oxidation of rare earth oxides, and the precipitates need to be separated from the solution. There is no quick separation mechanism in the above-mentioned patents, and the function is single

Images