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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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Применить Всего найдено 5. Отображено 5.
28-04-2023 дата публикации

Catalytic ozonation catalyst carrier, catalyst and preparation method and application of catalytic ozonation catalyst carrier

Номер: CN116020443A
Автор: HAN SHUAI, ZHAO BAOHUAI, HU HAIQIANG, SHI QINZHI, REN JING, YANG LIU, YIN XIPING, LI KEZHI
Принадлежит:

The invention relates to the field of waste recovery treatment, and discloses a catalytic ozonation catalyst carrier, a catalyst and a preparation method and application thereof. The catalytic ozonation catalyst carrier has a core-shell structure, the core of the catalytic ozonation catalyst carrier is formed by a core composition, the shell of the catalytic ozonation catalyst carrier comprises alumina, and the core composition contains a waste FCC catalyst, an active metal oxide and a binder. The catalytic ozonation catalyst carrier can realize resource utilization of the waste FCC catalyst, and the obtained composite core-shell catalytic ozonation catalyst is high in catalytic activity and has an excellent catalytic oxidation effect on organic wastewater.

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Номер записи: 1
28-04-2023 дата публикации

Ozone oxidation catalyst as well as preparation method and application thereof

Номер: CN116020463A
Автор: HU HAIQIANG, ZHAO BAOHUAI, HAN SHUAI, LI KEZHI, SHI QINZHI, REN JING, YANG LIU
Принадлежит:

The invention relates to the field of resource utilization of industrial waste catalysts, and discloses an ozone oxidation catalyst as well as a preparation method and application thereof. The preparation method of the ozone oxidation catalyst comprises the following steps: 1) mixing a binder, an auxiliary agent, a flexibilizer and waste FCC catalyst powder; 2) contacting an active metal salt aqueous solution with the mixed material obtained in the step 1); and (3) carrying out extrusion molding on the wet material obtained in the step (2). The preparation method of the ozone oxidation catalyst is a one-step method for preparing the ozone oxidation catalyst containing active components, the preparation process flow is simple, the price is low, industrial application is easy, and the prepared ozone catalyst is good in mechanical strength, high in catalytic activity and stable in catalytic performance.

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Номер записи: 2
18-04-2023 дата публикации

Preparation method of silicon-aluminum-phosphorus-calcium multi-element material

Номер: CN115974021A
Автор: CUI KAI, LI KEZHI, SHI QINZHI, REN JING, YANG LIU
Принадлежит:

The invention relates to the technical field of chemistry and chemical engineering and environmental protection engineering, and discloses a preparation method of a silicon-aluminum-phosphorus-calcium multi-element material and a recovery method of SAPO-34 molecular sieve synthesis mother liquor. The method comprises the following steps: (1) mixing SAPO-34 molecular sieve synthesis mother liquor with a soluble calcium salt solution, and carrying out optional hydrothermal reaction on the obtained turbid liquid; (2) performing solid-liquid separation on the product in the step (1), and sequentially performing washing, drying and optional roasting treatment on the solid phase obtained by the solid-liquid separation to obtain a silicon-aluminum-phosphorus-calcium multi-element material; wherein the use amount of the soluble calcium salt solution based on Ca relative to the SAPO-34 molecular sieve synthesis mother liquor is 20-100mg/g mother liquor. According to the method, triethylamine is ...

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Номер записи: 3
23-06-2004 дата публикации

一种聚丙烯催化剂制备方法

Номер: CN0001506384A
Автор: SHI QINZHI, ZHANG WENPING, XUE JINGZHI, QINZHI SHI, WENPING ZHANG, JINGZHI XUE, 石勤智
Принадлежит:

The present invention features applying ultrasonic technology in the preparation process of polypropylene catalyst. The preparation process includes the following steps: mixing anhydrous MgCl2, organic alcohol and inert solvent, inserting ultrasonic probe into the reactor, heating to 120-150 deg.c, turning on the ultrasonic unit while tuning the ultrasonic wave frequency to 20-50 KHz, adding phenyl anhydride and organic silicide and reaction for 1-5 hr to obtain alcoholate; adding the alcoholate cooled to room temperature into titanium compound solution cooled to -40 deg.c to -15 deg.c, heating to 90-110 deg.c, adding ester and reaction at 100-130 deg.c for 1-3 hr, and filtering to separate out solid catalyst grain. Applying ultrasonic wave technology in preparing polypropylene catalyst can raise the polymerizing activity of the catalyst and the bulk density of the polymer.

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Номер записи: 4
28-04-2023 дата публикации

Catalytic ozonation catalyst, preparation method thereof and wastewater treatment method

Номер: CN116020462A
Автор: HAN SHUAI, ZHAO BAOHUAI, HU HAIQIANG, YU CHENYU, SHI QINZHI, REN JING, YANG LIU, YIN XIPING, LI KEZHI
Принадлежит:

The invention relates to the field of wastewater treatment, and discloses a catalytic ozonation catalyst, a preparation method thereof and a wastewater treatment method adopting the catalytic ozonation catalyst. The catalyst comprises a carrier and an active component loaded on the carrier, the carrier is one or more of alumina pellets, molecular sieve pellets, silicon-aluminum pellets and activated carbon pellets, and the active component contains iron oxyhydroxide. The ozone catalytic oxidation catalyst provided by the invention has excellent catalytic performance in organic wastewater treatment.

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Номер записи: 5