Method and application of preparing high-level oxidation catalyst through cobalt ore smelting slag

Abstract

The invention discloses a method of preparing a high-level oxidation catalyst based on sulfate radial by utilizing solid waste cobalt ore smelting slag as a raw material, and pickling, modifying and activating the raw material. In the catalysts, the silicon dioxide skeleton in the slag is used as a carrier, and such ions or compounds as cobalt and ferrum are fixedly carried on the granule surfaces through pickling and coprecipitation methods, so that the smelting slag has such characteristics as high-level oxidation, multi-metal concerted catalysis and heterogeneous catalysis, and the like, and a non-homogeneous phase catalyst system formed by the smelting slag enables the smelting slag to be easily separated from a water body. When being applied on industrial sewage treatment, the catalytic oxidation system not only has high catalytic oxidation efficiency, wide pH adaptation range, low metal ion loss quantity and easy separation with water body, but also recycles the cobalt ore slag solid waste to change the waste into valuable, thereby both meeting the sustainable development and the nation call of the energy conservation and emission reduction, and having low cost and is easy to generalize, so that the method in the invention has brilliant application prospect.

Description

technical field

[0001] The invention belongs to the technical field of solid waste recycling, and in particular relates to a method for preparing an advanced oxidation catalyst from cobalt ore smelting slag and its application in industrial wastewater treatment. Background technique

[0002] Cobalt is a high-temperature-resistant material. Cobalt products are widely used in alloys, batteries and other production fields. They are also used in the manufacture of colored glass, pigments, catalysts and desiccants. On the other hand, cobalt alloys are extremely important strategic materials. It can be used to manufacture gas engines, jet engines, rocket engine nozzles, missiles and spacecraft components, etc. Therefore, cobalt is an indispensable and important raw material for national economy and national defense construction.

[0003] With the rapid growth of my country's industrial economy, the demand for cobalt consumption is increasing rapidly. However, my country's cobalt r...

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