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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 9. Отображено 9.
27-06-2012 дата публикации

Preparation and application of catalytic agent used for directionally converting CFC-115 into HFC-125 by hydrogenation and dechlorination

Номер: CN0101745409B
Автор: CHEN KEFENG, GONG HAITAO, NIE YANPING, ZHANG FUMIN, ZHANG XUELIANG, ZHANG YAN, ZHONG YIJUN, ZHOU LIYANG, ZHU WEIDONG, KEFENG CHEN, HAITAO GONG, YANPING NIE, FUMIN ZHANG, XUELIANG ZHANG, YAN ZHANG, YIJUN ZHONG, LIYANG ZHOU, WEIDONG ZHU
Принадлежит:

The invention relates to a method for preparing a high-efficiency Pd/AlF3 catalytic agent used for directionally converting CFC-115 into HFC-125 by hydrogenation and dechlorination. In the invention, noble metal Pd is taken as an active component and self-made AlF3 powder with high specific surface area is taken as a carrier to prepare a load type Pd/AlF3 catalytic agent by adopting an immersion method. The Pd/AlF3 catalytic agent prepared by the method shows high catalytic activity on the reaction of generating HFC-125 by hydrogenating and dechlorinating CFC-115, and the selectivity of the target product is 100 percent.

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Номер записи: 1
30-09-2009 дата публикации

Method for preparing catalyst for producing HFC-125 by hydrogenating and dechlorinating CFC-115

Номер: CN0101543779A
Автор: XIAO QIANG, ZHENG XIAO, NIE YANPING, ZHANG FUMIN, ZHONG YIJUN, ZHU WEIDONG, QIANG XIAO, XIAO ZHENG, YANPING NIE, FUMIN ZHANG, YIJUN ZHONG, WEIDONG ZHU
Принадлежит:

The invention provides a method for preparing a catalyst for producing HFC-125 as an ODS substitute by hydrogenating and dechlorinating CFC-115. The catalyst takes Pd as an active component and takes granular active carbon as a carrier. The method comprises the following steps for preparing the catalyst that: the carrier active carbon is put into an acid-pickling solution for pretreatment; the carrier active carbon subjected to acid-pickling pretreatment is repeatedly washed to be neutral by use of deionized water; the dried neutral carrier active carbon is pre-infiltrated with an infiltrating solution; a Pd-containing compound is prepared into a Pd-source impregnating solution which is then added to the infiltrating solution; the carrier active carbon is impregnated with the infiltrating solution added with the Pd-source impregnating solution for a while and added with precipitant, and continues to be impregnated for a while so as to form a catalyst precursor; the catalyst precursor is ...

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Номер записи: 2
23-06-2010 дата публикации

Preparation and application of catalytic agent used for directionally converting CFC-115 into HFC-125 by hydrogenation and dechlorination

Номер: CN0101745409A
Автор: CHEN KEFENG, GONG HAITAO, NIE YANPING, ZHANG FUMIN, ZHANG XUELIANG, ZHANG YAN, ZHONG YIJUN, ZHOU LIYANG, ZHU WEIDONG, KEFENG CHEN, HAITAO GONG, YANPING NIE, FUMIN ZHANG, XUELIANG ZHANG, YAN ZHANG, YIJUN ZHONG, LIYANG ZHOU, WEIDONG ZHU
Принадлежит:

The invention relates to a method for preparing a high-efficiency Pd/AlF3 catalytic agent used for directionally converting CFC-115 into HFC-125 by hydrogenation and dechlorination. In the invention, noble metal Pd is taken as an active component and self-made AlF3 powder with high specific surface area is taken as a carrier to prepare a load type Pd/AlF3 catalytic agent by adopting an immersion method. The Pd/AlF3 catalytic agent prepared by the method shows high catalytic activity on the reaction of generating HFC-125 by hydrogenating and dechlorinating CFC-115, and the selectivity of the target product is 100 percent.

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Номер записи: 3
24-06-2009 дата публикации

Solid supported type metal schiff base catalyst and preparation method thereof

Номер: CN0101462072A
Автор: JIANG DENGGAO, YANG GUOYU, ZHU HAILIN, WANG XUEMENG, ZHOU WENFENG, XIE YANXIN, SHI XIAOHUA, NIE YANPING, PENG HONGJIE, WANG CAIXIA, DENGGAO JIANG, GUOYU YANG, HAILIN ZHU, XUEMENG WANG, WENFENG ZHOU, YANXIN XIE, XIAOHUA SHI, YANPING NIE, HONGJIE PENG, CAIXIA WANG
Принадлежит:

The invention discloses Schiff base ligand compounds with a structural formula shown in a formula (I). In the formula, R1 is a hydrogen atom, a chlorine atom or a tert-butyl group; and R2 is the hydrogen atom, the chlorine atom or the tert-butyl group. The invention also discloses an immobilized catalyst which is prepared from the Schiff base ligand compounds and is used for series catalysis of oxygenated hydrocarbons by molecular oxygen. The immobilized catalyst for catalyzing the oxygenated hydrocarbons by the molecular oxygen has large immobilization amount of metal ions and high catalytic activity, and can be used for industrialized production. A method of the invention is easy to obtain raw materials, has simple preparation technology, and is easy for mass production.

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Номер записи: 4
20-07-2011 дата публикации

Laser exposure cutter and laser-based three-dimensional direct exposure imaging method

Номер: CN0102126082A
Автор: NAIQI CHEN, HONGWEI MA, YANPING NIE, CHEN NAIQI, MA HONGWEI, NIE YANPING
Принадлежит:

The invention discloses a laser exposure cutter and a laser-based three-dimensional direct exposure imaging method, and the adopted laser exposure cutter comprises an outer housing, as well as a control circuit board, a laser, a collimating lens, a diaphragm and a focusing lens, which are mounted in the outer housing, wherein a drive controller for performing drive control on the laser is arranged on the control circuit board, the shape of the outer housing is the same with that of a cutter shank of the cutter mounted on a numerical control machine, and the drive controller is connected with a control host of the numerical control machine; and the three-dimensional direct exposure imaging method comprises the following steps: 1) measuring the outer surface of a workpiece and designing a processing pattern; 2) processing the outer surface of the workpiece; 3) designing a mask pattern; 4) mounting the workpiece; 5) mounting the laser exposure cutter; 6) connecting with a device; 7) performing ...

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Номер записи: 5
27-08-2014 дата публикации

Process for simplifying machining of space bent tubes

Номер: CN104001763A
Автор: NIE YANPING, LIU QUAN, ZHAO JIAN
Принадлежит:

The invention discloses a process for simplifying machining of space bent tubes. According to the process, the method of determining dihedral angles by measuring the rotation arc length and the projection angle is adopted. The process is mainly used for machining water wall tubes which have a large number of space dihedral angles and are complex in structure and difficult to bend. The process solves the problem that workers can not position the space bent tubes easily when bending the space bent tubes, avoids errors made by the workers in the tube bending process and lowers the rejection rate.

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Номер записи: 6
04-04-2023 дата публикации

Mechanical machine tool for polishing mechanical parts

Номер: CN115890449A
Автор: SUN ZHONGBAI, NIE YANPING, WANG YUFANG, XU KONGLIAN, TAN ZANWU
Принадлежит:

The invention provides a mechanical machine tool for polishing mechanical parts, and relates to the field of machinery. Comprising a box body, a working area is fixedly installed in the box body, electric push rods are fixedly installed on the two sides of the lower portion of the working area, a placing plate is fixedly installed on the electric push rods, a motor box is fixedly installed on the lower portion of the placing plate, and a rotating disc is movably connected to the upper portion of the placing plate. According to the mechanical machine tool for mechanical part polishing, through cooperative use of the dust accumulation box, the dust suction pipe, the box body, the control panel, the movable door, a handle, a dust collector, a working area, a hydraulic oil cylinder, a polishing machine, a first motor, a polishing blade and a discharge pipe, when polishing is carried out, generated waste scraps are sucked into the dust accumulation box through the dust suction pipe by the dust ...

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Номер записи: 7
17-11-2010 дата публикации

Solid supported type metal schiff base catalyst and preparation method thereof

Номер: CN0101462072B
Автор: JIANG DENGGAO, SHI XIAOHUA, NIE YANPING, WANG XUEMENG, YANG GUOYU, XIE YANXIN, ZHOU WENFENG, ZHU HAILIN, PENG HONGJIE, WANG CAIXIA, DENGGAO JIANG, XIAOHUA SHI, YANPING NIE, XUEMENG WANG, GUOYU YANG, YANXIN XIE, WENFENG ZHOU, HAILIN ZHU, HONGJIE PENG, CAIXIA WANG
Принадлежит:

The invention discloses Schiff base ligand compounds with a structural formula shown in a formula (I). In the formula, R1 is a hydrogen atom, a chlorine atom or a tert-butyl group; and R2 is the hydrogen atom, the chlorine atom or the tert-butyl group. The invention also discloses an immobilized catalyst which is prepared from the Schiff base ligand compounds and is used for series catalysis of oxygenated hydrocarbons by molecular oxygen. The immobilized catalyst for catalyzing the oxygenated hydrocarbons by the molecular oxygen has large immobilization amount of metal ions and high catalyticactivity, and can be used for industrialized production. A method of the invention is easy to obtain raw materials, has simple preparation technology, and is easy for mass production.

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Номер записи: 8
27-03-2018 дата публикации

Weiqi roller of polishing

Номер: CN0207139524U
Автор: LUO LING, NIE YANPING, LI JIANZHONG, ZHAO YUDA, LIU TINGJU
Принадлежит: YUNNAN I GO FACTORY, YUNNAN I-GO FACTORY

Weiqi roller of polishing relates to the sub - manufacturing field of weiqi, and this roller of its characterized in that includes transmission and griding assembly, and transmission is connected withgriding assembly, transmission constitute by motor and harmonic drive speed reducer, the one end at harmonic drive speed reducer is installed to the motor, griding assembly be greater than the sub -tangent plane diameter of weiqi including dry grinding roller and support, support top installation dry grinding roller, dry grinding roller diameter, dry grinding roller one end is equipped with theconnecting axle, the dry grinding roller passes through the connecting axle to be connected with the harmonic drive speed reducer power take off end, dry grinding roller side is equipped with the feedinlet, installs the roller on the feed inlet and covers. The utility model discloses a weiqi roller of polishing adopts transmission and the structure that the dry grinding roller combined together,conveniently ...

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Номер записи: 9