On the Possibility of Using Silicon Dioxide Obtained from Mineral Raw Materials as an Enterosorbent

IF 0.7 4区工程技术 Q4 ENGINEERING, CHEMICAL

Theoretical Foundations of Chemical Engineering Pub Date : 2024-12-16 DOI:10.1134/S0040579524700209

D. V. Maiorov, Yu. O. Velyaev

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Abstract

Samples of amorphous silicon dioxide (SiO₂) are obtained by acidic decomposition of mineral raw materials (nepheline). The physicochemical and structural surface properties of the samples are studied using chemical and granulometric analyses and the BET and BJH methods. It is established that the obtained SiO₂ samples are almost identical to pyrogenic amorphous silicon dioxide obtained from reactive raw materials (pharmaceutical remedy Polysorb MP) in impurity content and have higher specific external surface area (by a factor of 1.1–1.9) and specific pore volume (by factor of about 1.4) compared to Polysorb MP. An economic assessment of their production cost is performed, which shows that the cost of silicon dioxide obtained by the developed technologies is more than two times lower than the cost of commercial pyrogenic silicon dioxide that is present in the market. Based on the obtained results, we discuss the prospects of using silicon dioxide obtained on the basis of acidic treatment of mineral raw materials as an enterosorbent in therapeutic practice.

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浅谈从矿物原料中提取二氧化硅作为吸附剂的可能性

非晶二氧化硅（SiO2）的样品是由矿物原料（霞石）的酸性分解得到的。采用化学分析、粒度分析、BET和BJH方法研究了样品的物理化学和结构表面性质。确定所获得的SiO2样品在杂质含量上与活性原料（医药制剂多糖MP）获得的热原非晶二氧化硅几乎相同，并且与多糖MP相比具有更高的比外表面积（1.1-1.9倍）和比孔容（约1.4倍）。对其生产成本进行了经济评估，结果表明，通过开发的技术获得的二氧化硅成本比市场上现有的商业热原二氧化硅成本低两倍以上。在此基础上，讨论了矿物原料酸处理所得二氧化硅作为肠道吸附剂在治疗实践中的应用前景。

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来源期刊

Theoretical Foundations of Chemical Engineering 工程技术-工程：化工

CiteScore

1.20

自引率

25.00%

发文量

审稿时长

24 months

期刊介绍： Theoretical Foundations of Chemical Engineering is a comprehensive journal covering all aspects of theoretical and applied research in chemical engineering, including transport phenomena; surface phenomena; processes of mixture separation; theory and methods of chemical reactor design; combined processes and multifunctional reactors; hydromechanic, thermal, diffusion, and chemical processes and apparatus, membrane processes and reactors; biotechnology; dispersed systems; nanotechnologies; process intensification; information modeling and analysis; energy- and resource-saving processes; environmentally clean processes and technologies.