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Высокочастотный динамический контроль гетерогенных окислительных реакций

Высокочастотный динамический контроль гетерогенных окислительных реакций

Abstract

Выявлены возможности интенсификации реакций растворения кислотоупорных материалов посредством высокочастотной динамической обработки реакционных смесей на основе растворяемого сырья. Показано, что высокочастотное динамическое воздействие на гетерогенную реакционную смесь способно осуществить «избирательно агрессивное» окисление компонентов этой смеси. В сонохимическом реакторе такая избирательность обеспечивается возможностью локализации акустической кавитации на растворяемой поверхности. Для микроволновой активации растворения кислотоупорных металлов предложено производить СВЧ-обработку пульпы в режиме электрических микропробоев. Определены оптимальные режимы ультразвуковой и микроволновой обработки, обеспечивающие эффективное растворение. Особое внимание уделено гетерогенным реакциям, позволяющим извлечь благородные металлы из упорного сырья. The subject of the paper is intensification of dissolving acid-proof materials. New possibilities for accelerating the dissolving reactions arise when heterogeneous reaction mixtures are being processed in high-frequency dynamical fields. It is shown that a high-frequency dynamical field acting on a heterogeneous reaction mixture can act as a «selectively aggressive» oxidizer for individual components of the mixture. In a sonochemical reactor this selectivity is provided by the possibility of localizing the acoustic cavitation on the surface being dissolved. To carry out microwave-activated dissolving we propose to activate preferencial oxidizing acid-proof metals by UHF - processing for the pulp being in the regime of dispersed electric breakthrough. Optimal regimes of ultrasound and microwave processes of dissolving are determined. Special attention is paid to heterogeneous reactions providing extraction of noble metals from acid-resistant raw materials.

Keywords

Sonochemical reaction, Acid-proof material, Dynamical controlling, Кислотоупорный материал, Микроволновая обработка, Динамический контроль реакции, Ultrasound treatment, Oxidative reaction, Ультразвуковая обработка, Microwave treatment, Окислительная реакция, Сонохимическая реакция

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
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