Production equipment and preparation method of rare earth oxides

Abstract

The invention relates to the technical field of materials, and particularly relates to production equipment and a preparation method of rare earth oxides. The production equipment of rare earth oxidescomprises a reactor, a microwave heating device, a gas carrying tank and a liquid storage tank, wherein the microwave heating device is nested outside of the reactor; the reactor comprises a gas inlet section, a contraction section, a throat section and a gas outlet section connected in sequence; the gas of the gas carrying tank comprises oxygen; the gas carrying tank is communicated with the gasinlet section so that the gas can enter the reactor and flow in a length direction of the reactor; the liquid storage tank is communicated with the throat section so that a rare earth chloride solution enters the reactor, flows to the gas outlet section and reacts with the oxygen to generate rare earth oxides and hydrogen chloride. The production equipment solves technical problems that the existing preparation equipment is unevenly heated to result in excess local temperature, and molecular motion of an outer heated region is active to easily form aggregation of products from the outside tothe inside so that the products are easily agglomerated to result in uneven particle size and different shapes.

Description

technical field [0001] The invention relates to the technical field of materials, in particular to a production equipment and preparation method of rare earth oxides. Background technique [0002] Rare earth oxides have a wide range of uses. For example, lanthanum oxide is widely used in the manufacture of special alloy precision optical glass, high-refraction optical fiber boards, suitable for cameras, cameras, microscope lenses and advanced optical instrument prisms, ceramic capacitors and reaction catalysts. Cerium oxide is widely used in oxidants, catalysts for organic reactions, color-changing glass and enamel glass, etc. Praseodymium oxide is used in architectural ceramics and daily-use ceramics. It is mixed with ceramic glaze to make colored glaze, and it can also be used alone as underglaze pigment. The pigment produced is light yellow, pure and elegant in tone. Neodymium oxide is mainly used as a coloring agent for glass and ceramics, as a raw material for the manu...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide rare earth oxide production equipment to alleviate the uneven heating of the existing preparation equipment, which is prone to local overheating, active molecular movement in the he

Images