A preparation process of rare earth solution that can quickly and efficiently catch acid

Abstract

The invention discloses a preparation process of a rare earth solution that can quickly and efficiently remove acid, including the steps of drying and crushing, grinding, dissolving and stirring, stabilizing the solution, microwave digestion, and double-layer acid removal; The preparation process of rare earth solution is to prepare rare earth ore powder through drying, crushing and grinding processes. After the rare earth ore powder is dissolved by strong acid and stabilized by metal soap stabilizer, it is then heated by sulfuric acid or perchloric acid to remove part of the dissolved acid, and then passed through The temperature-controlled acid removal device carries out residual acid removal; by adopting this process, the dissolved acid in the rare earth solution can be quickly removed, effectively reducing the residue of dissolved acid, and at the same time reducing the time for preparing the process and improving the rare earth The acid catching efficiency and preparation efficiency of the solution are worthy of popularization.

Description

technical field [0001] The invention relates to the field of rare earth technology, in particular to a rare earth solution preparation process capable of quickly and efficiently removing acid. Background technique [0002] Rare Earth (Rare Earth) is the general term for seventeen metal elements including lanthanides, scandium and yttrium in the chemical periodic table. There are 250 kinds of rare earth ores in nature; the earliest rare earth was discovered by Finnish chemist John Gadolin ; In 1794, the first rare earth "element" (yttrium earth, or Y2O3) was isolated from a heavy ore shaped like asphalt. Because there were few rare earth minerals discovered in the 18th century, only a small amount of insoluble Oxides of water, this kind of oxides are customarily called "earth" in history, hence the name rare earth, rare earth can be formulated into rare earth solution for use in the chemical industry, in order to prevent the strong corrosion of rare earth solution, in The pr...

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Problems solved by technology

[0002] Rare Earth (Rare Earth) is the general term for seventeen metal elements including lanthanides, scandium and yttrium in the chemical periodic table. There are 250 kinds of rare earth ores in nature; the earliest rare earth was discovered by Finnish chemist John Gadolin ; In 1794, the first rare earth "element" (yttrium earth, or Y2O3) was isolated from a heavy ore shaped like asphalt. Because there were few rare earth minerals discovered in the 18th century, only a small amount of insoluble Oxides of water, this kind of oxides are customarily called "earth" in history, hence the name rare earth, rare earth can be formulated into rare earth solution for use in the chemical industry, in order to prevent the strong corrosion of rare earth solution, in The preparation of the rare earth solution requires acid removal treatment, but the efficiency of the traditional rare earth solution is poor in the preparation of the acid, and there are more residues after the acid removal, and the preparation process is longer, resulting in low efficiency of the preparation of the rare earth solution; therefore, we Propose a preparation process of rare earth solution that can quickly and efficiently catch acid