Silica Gel as a Sorbent and Catalyst Support: Improvement of Technologies and Search for Alternative Production Routes

IF 0.7 Q4 ENGINEERING, CHEMICAL

Catalysis in Industry Pub Date : 2023-09-04 DOI:10.1134/S2070050423030054

G. V. Mamontov, E. V. Evdokimova, A. S. Savel’eva, A. V. Zubkov, N. N. Mikheeva, I. N. Mazov, A. S. Knyazev

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Abstract

Silica gels are porous materials that are commonly used both in industry and in everyday life. Russian manufacturers produce spherical and powdered silica gels; however, a number of fields of application of silica gels are entirely dependent on import. Therefore, it is necessary to develop silica gel production technologies, the introduction of which would make it possible to replace imported silica gels. Methods for improving the properties of spherical silica gels and new solutions for the production of SiO₂, in particular, silica gel powders and silica gels with an ordered pore structure, are described. It is proposed that they should be produced using cheap feedstocks, in particular, the aluminum industry waste Si-stoff and the cheap natural material diatomite. It is shown that control of the silica precipitation and structure formation parameters provides the formation of silica gels with a wide range of pore structure characteristics, which makes it possible to use them in various fields.

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硅胶作为吸附剂和催化剂载体:技术改进和替代生产途径的探索

硅胶是一种多孔材料，在工业和日常生活中都广泛使用。俄罗斯厂家生产球形和粉状硅胶;然而，硅胶的一些应用领域完全依赖进口。因此，有必要开发硅胶生产技术，使其成为替代进口硅胶的可能。介绍了改善球形硅胶性能的方法和生产二氧化硅的新解决方案，特别是硅胶粉末和具有有序孔结构的硅胶。建议利用廉价的原料，特别是利用铝工业废硅渣和廉价的天然材料硅藻土来生产。研究表明，控制二氧化硅的沉淀和结构形成参数，可以形成具有广泛孔隙结构特征的硅胶，从而使其在各个领域的应用成为可能。

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来源期刊

Catalysis in Industry ENGINEERING, CHEMICAL-

CiteScore

1.30

自引率

14.30%

发文量

期刊介绍： The journal covers the following topical areas: Analysis of specific industrial catalytic processes: Production and use of catalysts in branches of industry: chemical, petrochemical, oil-refining, pharmaceutical, organic synthesis, fuel-energetic industries, environment protection, biocatalysis; technology of industrial catalytic processes (generalization of practical experience, improvements, and modernization); technology of catalysts production, raw materials and equipment; control of catalysts quality; starting, reduction, passivation, discharge, storage of catalysts; catalytic reactors.Theoretical foundations of industrial catalysis and technologies: Research, studies, and concepts : search for and development of new catalysts and new types of supports, formation of active components, and mechanochemistry in catalysis; comprehensive studies of work-out catalysts and analysis of deactivation mechanisms; studies of the catalytic process at different scale levels (laboratory, pilot plant, industrial); kinetics of industrial and newly developed catalytic processes and development of kinetic models; nonlinear dynamics and nonlinear phenomena in catalysis: multiplicity of stationary states, stepwise changes in regimes, etc. Advances in catalysis: Catalysis and gas chemistry; catalysis and new energy technologies; biocatalysis; nanocatalysis; catalysis and new construction materials.History of the development of industrial catalysis.