Vanadium alloy reduction smelting reducing agent and application thereof

Abstract

The invention discloses a vanadium alloy reduction smelting reducing agent and an application thereof. The vanadium alloy reduction smelting reducing agent is a graphene-loaded silicon-zinc-aluminum alloy, and a preparation method of the vanadium alloy reduction smelting reducing agent comprises the following steps: mixing and ultrasonically stirring graphene oxide, a zinc chloride aqueous solution, sodium metaaluminate and sodium metasilicate for 30-60 min, then dropwise adding a potassium hydroxide solution, adjusting the pH to be 8-10, stirring evenly, then carrying out hydrothermal reaction at 120-150 DEG C for 2-4 hours, washing the product with water and ethanol in sequence, and drying to obtain the product. The invention further discloses an application of the vanadium alloy reduction smelting reducing agent to smelting of vanadium-iron alloy. An excellent place for loading of metal nanoparticles can be provided through the huge specific surface area of the graphene, and the lamellar structure of the graphene can increase the contact with reactants, so that the reaction rate and efficiency are effectively improved, the use amount of a reducing agent can be remarkably reduced, the slag amount in the metal thermal reduction process is remarkably reduced, and the vanadium loss is reduced.

Description

technical field [0001] The invention relates to a reducing agent for vanadium alloy reduction smelting and its application, in particular to a reducing agent for vanadium-iron alloy reduction smelting and its application. Background technique [0002] Ferrovanadium is an important ferroalloy additive. At present, most of the vanadium products produced in the world are used in the iron and steel industry in the form of ferrovanadium. The role of vanadium in steel is mainly to refine the structure and grain of steel, improve the grain Grain coarsening temperature, thereby reducing the overheating sensitivity of steel, improving the strength and toughness of steel, and improving the cutting performance of steel. With the continuous improvement of market orientation and user requirements, high-grade ferro-vanadium with low impurity content is widely used, and its quality requirements are also getting higher and higher. [0003] my country is the second largest owner of vanadium...

AI Technical Summary

Problems solved by technology

[0004] At present, the aluminothermic reduction of V2O5 and V2O3 is a traditional process for preparing vanadium-iron alloys, but this method still has some shortcomings: 1) it needs to consume a lot of metal aluminum; 2) it needs to consume a lot of lime and produce a lot of slag ; 3) A certain amount of vanadium metal will be taken away by slag, resulting in vanadium loss (about 5%)