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    SYSTEM AND METHOD FOR PREPARING HIGH-PURITY DIVANADIUM PENTOXIDE POWDER
    2.
    发明公开
    SYSTEM AND METHOD FOR PREPARING HIGH-PURITY DIVANADIUM PENTOXIDE POWDER 有权
    用于制备高纯度五氧化二钽粉末的系统和方法

    公开(公告)号：EP3243798A1

    公开(公告)日：2017-11-15

    申请号：EP16742778.0

    申请日：2016-01-28

    申请人： Institute of Process Engineering, Chinese Academy of Sciences ,  Beijing Zhongkaihongde Technology Co., Ltd.

    发明人： FAN, Chuanlin ,  ZHU, Qingshan ,  MU, Wenheng ,  LIU, Jibin ,  WANG, Cunhu ,  BAN, Qixun

    IPC分类号： C01G31/02

    CPC分类号： C01G31/02 ,  B01D3/02 ,  B01D3/14 ,  B01J6/001 ,  B01J8/0055 ,  B01J8/1827 ,  B01J8/1836 ,  B01J19/06 ,  B01J19/245 ,  B01J2208/00752 ,  B01J2208/00761 ,  C01G31/003 ,  C01G31/04 ,  C01P2006/80 ,  Y02P20/129

    摘要： The present invention provides a system and method for preparing high-purity vanadium pentoxide powder. 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 subjected to purification by rectification, ammonium salt precipitation and fluidized calcination, thereby obtaining high-purity vanadium pentoxide, wherein the ammonia gas produced during calcination is condensed and then recycled for ammonium salt precipitation. The system and method have advantages of favorable adaptability to a raw material, less pollution, low energy consumption in production and low operation cost, stable product quality and so on, and are suitable for large-scale production of high-purity vanadium pentoxide powder with a purity of above 4N.

    摘要翻译： 本发明提供了制备高纯度五氧化二钒粉末的系统和方法。 通过低温流化氯化将工业级五氧化二钒转化为三氯氧化钒，其中通过流化气体与氯化烟气之间的热交换预热氯化气体，并加入适量的空气以使一部分碳粉燃烧 在氯化过程中实现均衡供热，从而提高氯化效率并确保低温氯化中的良好选择性。 通过精馏，铵盐沉淀和流化煅烧对三氯氧化钒进行纯化，由此获得高纯度五氧化二钒，其中将煅烧期间产生的氨气冷凝，然后再循环用于铵盐沉淀。 该系统和方法具有原料适应性好，污染少，生产能耗低，运行费用低，产品质量稳定等优点，适用于大规模生产高纯度五氧化二钒粉末 纯度在4N以上。

    SYSTEM AND METHOD FOR PRODUCING 3.5-VALENT HIGHLY PURE VANADIUM ELECTROLYTE
    4.
    发明公开
    SYSTEM AND METHOD FOR PRODUCING 3.5-VALENT HIGHLY PURE VANADIUM ELECTROLYTE 审中-公开

    公开(公告)号：EP3401991A1

    公开(公告)日：2018-11-14

    申请号：EP17743584.9

    申请日：2017-01-16

    申请人： Institute of Process Engineering, Chinese Academy of Sciences ,  Beijing Zhongkaihongde Technology Co., Ltd.

    发明人： FAN, Chuanlin ,  ZHU, Qingshan ,  YANG, Haitao ,  MU, Wenheng ,  LIU, Jibin ,  WANG, Cunhu ,  BAN, Qixun

    IPC分类号： H01M8/18

    摘要： Disclosed herein are a system and method for producing a 3.5-valence high-purity vanadium electrolyte, comprising hydrolyzing high-purity vanadium oxytrichloride into vanadium pentoxide in a fluidized bed (2) by means of gas phase hydrolysis, and in a reduction fluidized bed (5), reducing vanadium pentoxide into a low-valence vanadium oxide having an average vanadium valence of 3.5 through precise control, and adding water and a sulfuric acid solution under microwave field applied externally for dissolution at a low temperature, to obtain a 3.5-valence high-purity vanadium electrolyte which can be directly used in a new all-vanadium redox flow battery stack. The preparation of vanadium pentoxide by means of gas-phase hydrolysis in the fluidized bed (2) is of short process and high efficiency. By providing an internal member within the reduction fluidized bed (5), the precise regulation of the valence state of the reduction product is achieved, and the special chemical effect of the microwave field is used to promote dissolution of the vanadium oxide and activate the vanadium ions, and the dissolution and preparation of the electrolyte is performed in a low temperature range, thereby greatly improving the activity of the electrolyte. The present method has the advantages of short process, high efficiency and good cleanliness, and stable product quality, etc. and is applicable to large-scale industrial production, with good economic and social benefits.

    SYSTEM AND METHOD FOR PRODUCING HIGH-PURITY DIVANADIUM PENTOXIDE POWDER
    5.
    发明公开
    SYSTEM AND METHOD FOR PRODUCING HIGH-PURITY DIVANADIUM PENTOXIDE POWDER 审中-公开
    用于生产高纯度五氧化二钽粉末的系统和方法

    公开(公告)号：EP3252012A1

    公开(公告)日：2017-12-06

    申请号：EP16742779.8

    申请日：2016-01-28

    申请人： Institute of Process Engineering, Chinese Academy of Sciences ,  Beijing Zhongkaihongde Technology Co., Ltd.

    发明人： FAN, Chuanlin ,  ZHU, Qingshan ,  MU, Wenheng ,  LIU, Jibin ,  WANG, Cunhu ,  BAN, Qixun

    IPC分类号： C01G31/02

    CPC分类号： C01G31/02 ,  B01D3/143 ,  B01F15/0235 ,  B01F2015/0204 ,  B01J6/004 ,  B01J8/26 ,  B01J2208/00017 ,  B01J2219/00166 ,  B01L5/04 ,  C01B3/061 ,  C01B7/035 ,  C01G31/04 ,  C01P2006/80

    摘要： The present invention provides a system and method for producing high-purity vanadium pentoxide powder. 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 fluidized gas phase hydrolyzation and fluidized calcination, thereby producing a high-purity vanadium pentoxide product and a by-product of hydrochloric acid solution. The system and method have advantages of favorable adaptability to a raw material, no discharge of contaminated wastewater, low energy consumption in production and low operation cost, stable product quality and so on, and are suitable for large-scale industrial production of high-purity vanadium pentoxide powder with a purity of above 4N.

    摘要翻译： 本发明提供了生产高纯度五氧化二钒粉末的系统和方法。 通过低温流化氯化将工业级五氧化二钒转化为三氯氧化钒，其中通过流化气体与氯化烟气之间的热交换预热氯化气体，并加入适量的空气以使一部分碳粉燃烧 在氯化过程中实现均衡供热，从而提高氯化效率并确保低温氯化中的良好选择性。 通过精馏纯化三氯氧化钒，然后进行流化气相水解和流化煅烧，由此生产高纯度五氧化二钒产品和盐酸溶液的副产品。 该系统和方法具有原料适应性好，污染废水不排放，生产能耗低，运行费用低，产品质量稳定等优点，适用于高纯度的大规模工业生产 纯度在4N以上的五氧化二钒粉末。

    SYSTEM AND METHOD FOR PRODUCING HIGH-PURITY HIGH-ACTIVITY VANADIUM ELECTROLYTE
    6.
    发明公开
    SYSTEM AND METHOD FOR PRODUCING HIGH-PURITY HIGH-ACTIVITY VANADIUM ELECTROLYTE 审中-公开

    公开(公告)号：EP3401989A1

    公开(公告)日：2018-11-14

    申请号：EP17743582.3

    申请日：2017-01-16

    申请人： Institute of Process Engineering, Chinese Academy of Sciences ,  Beijing Zhongkaihongde Technology Co., Ltd.

    发明人： YANG, Haitao ,  ZHU, Qingshan ,  FAN, Chuanlin ,  MU, Wenheng ,  LIU, Jibin ,  WANG, Cunhu ,  BAN, Qixun

    IPC分类号： H01M8/18

    CPC分类号： H01M8/18 ,  Y02E60/528

    摘要： Disclosed herein are a system and method for producing a high-purity and high-activity vanadium electrolyte, comprising converting high-purity vanadium oxytrichloride into an ammonium salt in a fluidized bed (2) by gas phase ammoniation, then in another fluidized bed (3), reducing the ammonium salt into a low-valence vanadium oxide having an average vanadium valence of 3.5, adding clean water and sulfuric acid for dissolution, and further performing activation by ultrasound to obtain a 3.5-valence vanadium electrolyte which can be directly used in a new all-vanadium redox flow battery stack. The method of producing an ammonium salt containing vanadium in the fluidized bed (2) by gas phase ammoniation is of short process and high efficiency. Precise regulation of the valence state of the reduction product is implemented by arranging an internal member in the reduction fluidized bed (3), and ultrasonication is used to activate the vanadium ion, thereby greatly improving the activity of the electrolyte. The present method has the advantages of short process, high efficiency and good cleanliness, and stable product quality, etc. and is applicable to large-scale industrial production, with good economic and social benefits.

    SMELTING METHOD FOR METALLURGICAL ELECTRIC-FURNACE
    8.
    发明公开
    SMELTING METHOD FOR METALLURGICAL ELECTRIC-FURNACE 审中-公开

    公开(公告)号：EP3480325A1

    公开(公告)日：2019-05-08

    申请号：EP17818970.0

    申请日：2017-05-15

    申请人： Beijing Zhongkaihongde Technology Co., Ltd.

    发明人： CHAO, John Tung ,  MU, Wenheng ,  LIU, Jibin ,  WANG, Cunhu ,  CHEN, Lei ,  WEN, Han

    IPC分类号： C22B4/08 ,  C21B11/10

    摘要： The present disclosure provides a metallurgical electric furnace, and a smelting method for the metallurgical electric furnace. The metallurgical electric furnace includes a furnace body, an oxygen lance and a coal lance, wherein the furnace body is provided with a furnace chamber; the oxygen lance is located on a side wall of the furnace chamber and is used for blowing oxygen into the slag promoting the smelting process, and the outlet of the oxygen lance is higher than the slag; and the coal lance is located on the side wall of the furnace chamber beside the oxygen lance and is used for spraying coal into the slag, and the outlet of the coal lance is higher than the slag. The metallurgical electric furnace provided by the present disclosure adopts the oxygen blowing and coal spraying technology, O 2 oxidizes low-valent reduced state substances in the slags, the chemical energy released in an oxidation process melts the feed, and meanwhile, the coal particles are also injected into the slag from top to bottom to reduce the substances in oxidation state into reduced state; and in the slag, a combustion reaction occurs between CO, C and O 2 , the heat of combustion provides heat for the melting of the feed, so that the chemical energy provides a large amount of energy for the smelting process, and thus the consumption of electric energy is reduced.

    SYSTEM AND METHOD FOR PREPARING HIGH-ACTIVITY SPECIFIC-VALENCE-STATE ELECTROLYTE OF ALL-VANADIUM FLOW BATTERY
    9.
    发明公开
    SYSTEM AND METHOD FOR PREPARING HIGH-ACTIVITY SPECIFIC-VALENCE-STATE ELECTROLYTE OF ALL-VANADIUM FLOW BATTERY 审中-公开

    公开(公告)号：EP3410526A1

    公开(公告)日：2018-12-05

    申请号：EP17743580.7

    申请日：2017-01-16

    申请人： Institute of Process Engineering, Chinese Academy of Sciences ,  Beijing Zhongkaihongde Technology Co., Ltd.

    发明人： ZHU, Qingshan ,  YANG, Haitao ,  FAN, Chuanlin ,  MU, Wenheng ,  LIU, Jibin ,  WANG, Cunhu ,  BAN, Qixun

    IPC分类号： H01M8/18

    摘要： Disclosed herein are a system and method for preparing a high-activity specific-valence electrolyte of an all-vanadium redox flow battery. A vanadium-containing material is reduced into a low-valence vanadium oxide with an average valence being any value in the range of 3.0-4.5 through precise control of fluidization, then water and sulfuric acid are added for dissolution, and microwave field is further adopted for activation, so as to obtain a specific-valence vanadium electrolyte. Efficient utilization of heat is achieved through heat exchange between the vanadium-containing material and reduction tail gas and heat exchange between the reduction product and fluidized nitrogen gas. An internal member and feed outlets at different heights are arranged in a reduction fluidized bed to achieve precise control over the valence state of the reduction product, and the special chemical effect of the microwave field is used to activate the vanadium ions, thereby improving the activity of the electrolyte greatly. The present method has the advantages of short process, high efficiency and good cleanliness, stable product quality, etc. and is applicable to large-scale industrial production, with good economic and social benefits.