A rapid preparation of λ-ti 3 o 5 Apparatus and method for powder

Abstract

The invention discloses a method for rapidly preparing λ-Ti 3 o 5 Powder device and method, the device includes a hydrogen storage tank, a material tank, a vibrator, a linear motor, a reaction furnace, a gas-solid separator, a material collection tank, and an exhaust gas purification device; commercial P25 or pigment grade titanium dioxide is used as a raw material, and hydrogen is used as a carrier Gas and reducing gas, control the gas flow and reaction temperature, after the reaction is completed, λ‑Ti is obtained in the material collection area 3 o 5 powder; this method can quickly prepare λ-Ti 3 o 5 Powder, the particle size of the powder is micron, Ti 3 o 5 phase stable, enabling λ‑Ti 3 o 5 Rapid preparation of powders.

Description

technical field [0001] The invention provides a rapid preparation of λ-Ti 3 o 5 The powder device and method belong to the field of powder material preparation. Background technique [0002] Since the 1970s, solar technology has developed rapidly because of its attractive application prospects. Utilizing the inexhaustible solar energy to solve the energy shortage problem, its non-polluting and degradable nature of existing pollution has become a perfect choice for human beings. [0003] In the application of energy and environment, the content of titanium in the earth's crust is high, and its main oxides have various synthesis processes, and because of the stable physical and chemical properties of various titanium oxides, moderate band gap, good oxygen sensitivity, light storage, and photocatalytic performance, the price Cheap and easy to get, it has become a research hotspot of titanium nano-semiconductor materials. Among many titanium oxide nanomaterials, Ti 3 o 5 I...

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Problems solved by technology

[0005] CN105887182 A discloses a manufacturing process of trititanium pentoxide crystals. Titanium powder and titanium dioxide are evenly mixed, granulated and dried to form sintered blocks, and the furnace body is vacuumed to 10 3 ~10 4 Below Pa, adopt the method of step-by-step heating and sintering: the first stage rises to 1200°C at normal temperature; the second stage rises from 1200°C to 1500°C, and fills inert gas when the temperature reaches 1400°C; the third stage rises from 1500°C to 1750°C ~1850°C, this invention effectively avoids the formation of a large number of pores, and the purity and quality of the obtained titanium pentoxide are high, but the reaction process takes a long time, and the light holding time is as long as 13 to 30 hours, and the process is relatively complicated

[0006] CN103806099 A discloses a kind of method for preparing trititanium pentoxide crystal, adopts the method for stage-by-stage sintering equally, has made sheet-like trititanium pentoxide crystal, has shortened pre-melting time or saved pre-melting time, direct evaporation, saves The coating time is shortened, the invention requires a special sintering mold, and the operation process is relatively complicated

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