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32 条记录 (耗时 0.011 秒)

    VANADIUM PENTOXIDE PURIFYING SYSTEM AND METHOD
    21.
    发明公开
    VANADIUM PENTOXIDE PURIFYING SYSTEM AND METHOD 有权

    公开(公告)号：EP3243799A4

    公开(公告)日：2018-01-03

    申请号：EP16742780

    申请日：2016-01-28

    申请人： INST OF PROCESS ENGINEERING CHINESE ACADEMY OF SCIENCES ,  BEIJING ZHONGKAIHONGDE TECH CO LTD

    发明人： ZHU QINGSHAN ,  FAN CHUANLIN ,  MU WENHENG ,  LIU JIBIN ,  WANG CUNHU ,  BAN QIXUN

    IPC分类号： C01G31/02 ,  C01G31/04

    CPC分类号： C01G31/02 ,  B01D3/14 ,  B01D19/0057 ,  B01J8/24 ,  C01G31/04 ,  C01P2006/80

    摘要： The present invention provides a system and method for purifying vanadium pentoxide. Industrial grade vanadium pentoxide is converted to vanadium oxytrichloride by low temperature fluidizing chlorination, wherein chlorinating gas is preheated via heat exchange between fluidizing gas and chlorination flue gas, and an appropriate amount of air is added to enable a part of carbon powder to combust so as to achieve a balanced heat supply during the chlorination, thereby increasing the efficiency of chlorination and ensuring good selectivity in low temperature chlorination. The vanadium oxytrichloride is purified by rectification, and then subjected to plasma oxidation, thereby obtaining a high-purity vanadium pentoxide product and chlorine gas. The chlorine gas is returned for low temperature chlorination. The system and method have advantages of favorable adaptability to a raw material, no discharge of contaminated wastewater, low energy consumption and chlorine consumption in production, stable product quality and so on.

    A fluidized bed reactor system
    24.
    发明公开
    A fluidized bed reactor system 失效
    流化床反应器系统。

    公开(公告)号：EP0019422A2

    公开(公告)日：1980-11-26

    申请号：EP80301506.4

    申请日：1980-05-08

    申请人： STAUFFER CHEMICAL COMPANY

    发明人： Skrzec, Adam Edward

    IPC分类号： B01J8/18 ,  C01G31/04

    CPC分类号： C01G31/04 ,  B01J8/1818

    摘要： A fluidized bed reactor system comprises a vessel (10) adapted to contain a fluidized bed, a plurality of fluid injector means (24) mounted through the vessel wall (20) for injecting and distributing a fluidizing medium into the lower portion of the vessel, each injector means being made up of an elongated injector having a nozzle end (26) projecting into the vessel. The injector is withdrawably mounted through the vessel wall and has at least one downwardly directed orifice (28). Shield means (32) are provided which are mounted on the vessel wall above the injector extending along the length of the injector for maintaining an opening in the bed when the injector is withdrawn. The opening is substantially equivalent to the length of the injector. The reactor system further includes fluid supply means (48) in fluid communication with each elongated injector (24) for supplying the fluidizing medium to each nozzle end (26). When it is required to replace the injector due, for example, to clogging of the orifices or deterioration, the injector is withdrawn from the vessel, replaced or repaired and then inserted into the vessel, The shield means allows for the easy insertion of the injector into the vessel by maintaining an opening in the bed, whether fluidized or non-fluidized. The fluidized bed reactor system allows for the replacement or repair of injectors without the necessity for shutting down and/or cleaning out the vessel.