Preparation method of carbon-containing micro-electrolysis material

Abstract

The invention discloses a preparation method of a carbon-containing micro-electrolysis material, which comprises the following steps: S1, optimally proportioning a zinc-containing dust material, a carbon source and a binder to obtain a mixture; s2, intensively and uniformly mixing the mixture obtained in the step S1, and then carrying out high-pressure roller milling and wet milling combined treatment to obtain a uniformly mixed material; s3, pelletizing the uniformly mixed material obtained in the step S2 to obtain green pellets, and drying to obtain dry pellets; and S4, the dry balls obtained in the step S3 are loaded into a gas-based shaft furnace to be subjected to hydrogen reduction treatment, cooling is conducted under the protective atmosphere after reduction, and the carbon-containing micro-electrolysis material is obtained. According to the preparation method of the carbon-containing micro-electrolysis material, Fe and C contained in zinc-containing dust are fully utilized, dezincification of the zinc-containing dust and preparation of the micro-electrolysis material are achieved in one step through a reduction method, the traditional preparation process of the micro-electrolysis material is changed, and short-process and high-value comprehensive utilization of the zinc-containing dust is achieved.

Description

technical field

[0001] The invention belongs to the field of preparation of micro-electrolytic materials, and relates to a preparation method of carbon-containing micro-electrolytic materials. Background technique

[0002] The iron and steel industry is an important basic industry for my country's economic development, and it is also a large solid waste discharger. During its smelting process, a large amount of dust that is difficult to handle will be generated, such as zinc-containing dust. According to statistics, the total amount of dust produced by iron and steel enterprises is generally 8% to 12% of the steel output, while zinc-containing dust accounts for 20% to 30%. Zinc-containing dust is rich in a variety of heavy metals and is a typical hazardous waste. If it cannot be effectively disposed of, it will inevitably bring serious environmental problems. In order to protect the environment and promote the ecological cycle of the iron and steel industry, it is urgent to...

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