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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Применить Всего найдено 4. Отображено 4.
09-06-2023 дата публикации

Amide extracting agent as well as preparation method and application thereof

Номер: CN116239490A
Автор: CHEN QI, LI BAOLE, HE TIANSHENG, GE XIAO, WANG JUNLI, WANG WENTAO, YAN TAIHONG, LV HONGBIN, CAO ZHI
Принадлежит:

The invention discloses an amide extracting agent as well as a preparation method and application thereof. The bisamide extraction agents 2, 2 '-(cyclohexane-1, 2-dialkyl bis (oxy)) bis (N, N-bis (2-ethylhexyl) acetamide) (Octy-CDA) and 2, 2'-(cyclohexane-1, 2-dialkyl bis (oxy)) bis (N, N-dioctyl acetamide) (2-ethylhexyl-CDA) are obtained by adopting a two-step method, the preparation raw materials of the amide extraction agents are easy to obtain, the reaction is carried out at normal temperature and normal pressure, and the reaction process is clean and environment-friendly; the bisamide extraction agent has ether oxygen bonds and carbonyl oxygen bonds in the structure, more binding sites are provided for plutonium extraction, and the coordination ability is improved; moreover, the amide extraction agent disclosed by the invention is convenient to dispose wastes after plutonium extraction, so that environmental pollution is reduced.

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Номер записи: 1
30-06-2023 дата публикации

Method for extracting technetium from nuclear fuel post-treatment waste liquid by adopting extraction method

Номер: CN116356145A
Автор: WANG HUI, WANG JUNLI, SHEN ZHEN, YAN TAIHONG, HE TIANSHENG, GE XIAO
Принадлежит:

The invention relates to a method for extracting technetium from nuclear fuel post-treatment waste liquid by adopting an extraction method. Comprising the following steps: preparing a technetium-zirconium co-extraction feed, co-extracting technetium and zirconium by taking a TBP-kerosene organic solution as an extracting agent, reducing and back-extracting technetium in a TBP organic phase co-extraction solution by adopting a reduction back-extraction agent, and back-extracting zirconium in the residual TBP organic phase by using a complexing back-extraction agent; the current situation that in the prior art, when technetium is extracted from nuclear fuel post-treatment waste liquid through an extraction method, more organic-phase radioactive waste liquid except tributyl phosphate can be generated, and a set of solvent treatment system needs to be additionally arranged is improved, introduction of extra solvents and metal ion groups into the post-treatment system can be avoided, and the ...

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Номер записи: 2
22-08-2023 дата публикации

Device for building settlement detection and detection method thereof

Номер: CN116625307A
Автор: XUE BIAO, GE XIAO
Принадлежит:

The invention discloses a device for building settlement detection and a detection method thereof, and relates to the technical field of building settlement detection.The device comprises a plurality of single-point detection mechanisms and a comprehensive detection mechanism, and a first connecting pipe is jointly installed between every two adjacent single-point detection mechanisms; a second connecting pipe is jointly mounted between the comprehensive detection mechanism and the single-point detection mechanism on the outermost side, mounting frames are mounted on the outer surfaces of the single-point detection mechanisms and the comprehensive detection mechanism, concrete bases are mounted at the lower ends of the mounting frames, and the concrete bases are buried in the ground; the single-point detection mechanism, the first connecting pipe, the second connecting pipe and the comprehensive detection mechanism jointly form a closed pipeline, and the closed pipeline is filled with water ...

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Номер записи: 3
25-07-2023 дата публикации

Preparation method of noble metal catalyst, catalyst and application

Номер: CN116474767A
Автор: LI BAOLE, CAO ZHI, ZUO CHEN, HE TIANSHENG, GE XIAO, YAN TAIHONG, ZHENG WEIFANG
Принадлежит:

The invention relates to a preparation method of a noble metal catalyst, the catalyst and application, and belongs to the technical field of nuclear power waste governance, the method comprises the following steps: S1, dispersing activated carbon in a nitric acid solution for impregnation and adsorption to obtain first activated carbon, and then drying to obtain a first activated carbon carrier; s2, dispersing the first activated carbon carrier in a hydrochloric acid solution for impregnation and adsorption to obtain second activated carbon, and then drying to obtain a formed activated carbon carrier; s3, mixing the formed activated carbon carrier with a corresponding active component solution, dipping and adsorbing at room temperature, and performing rotary evaporation to remove a solvent to obtain a dry material; s4, roasting the dried material in a reducing environment, cooling and then collecting; and S5, fully washing and filtering the collected material in deionized water, and finally ...

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Номер записи: 4