Beijing University of Technology Overcomes the Problem of Recycling Tungsten and Molybdenum from Waste FCC Catalysts

Tungsten element image

Researchers from Beijing University of Technology have developed an innovative process for efficiently recovering tungsten (W) and molybdenum (Mo) from waste fluid catalytic cracking (FCC) catalysts. The proposed method, termed "oxidative roasting-alkali roasting-wet ball milling leaching," offers a dual benefit: it significantly enhances the extraction efficiency of these valuable metals while minimizing waste liquid and gas emissions, achieving a balance between resource recovery and environmental sustainability.

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The Infinite Possibilities of Nano Blue Tungsten Oxide

nano blue tungsten oxide image

Nano blue tungsten oxide, often chemically represented as WO2.9 or WO2.92, is a tungsten oxide with a unique blue luster. It boasts a large specific surface area, a high melting point, and excellent thermal stability, making it a promising candidate for a wide range of applications across multiple fields.

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Why Does Tungsten Disulfide Nanosheet Have Lubricity?

Tungsten disulfide picture

Tungsten disulfide nanosheet (WS₂ nanosheet) is often used as a lubricant additive. When added to lubricating oils and greases, it can greatly improve the lubrication effect. It is used in automobile engines, industrial gearboxes and other equipment to reduce wear on mechanical parts and extend the service life. It can also be made into a dry-film lubricant and coated on the surfaces of aerospace parts and precision instruments. It can play a lubricating role under special working conditions such as high temperature and high vacuum, ensure the stable operation of equipment, and improve the reliability and efficiency of mechanical systems.

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What Are the Characteristics of Nano Blue Tungsten Oxide?

nano blue tungsten oxide image

Nano blue tungsten oxide is a tungsten oxide with a unique blue luster. Its main characteristics are as follows:

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What Is the Crystal Structure of Tungsten Disulfide Nanosheet?

Tungsten disulfide picture

Tungsten disulfide nanosheet (WS₂ nanosheet) has attracted much attention in the field of materials science. Its unique properties are largely derived from its special crystal structure.

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