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公开(公告)号：US10693171B2
公开(公告)日：2020-06-23
申请号：US16074080
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： Qingshan Zhu , Haitao Yang , Chuanlin Fan , Wenheng Mu , Jibin Liu , Cunhu Wang , Qixun Ban
摘要： A system and method for preparing a high-purity vanadium electrolyte, comprising preparing a low-valence vanadium oxide with vanadium oxytrichloride by ammonium salt precipitation and fluidization reduction, and preparing the high-purity vanadium electrolyte at a low temperature by adding a sulfuric acid solution and clean water under the conditions of ultrasound-assisted dissolution and activation. Efficient utilization of heat is achieved through heat exchange between the ammonium salt and the reduction tail gas and heat exchange between the reduction product and fluidized nitrogen gas. Ammonia gas in the reduction tail gas is recovered for precipitation of vanadium to achieve the recycling of ammonia gas. An internal member is arranged in the reduction fluidized bed to realize the precise regulation of the valence state of the reduction product. Furthermore, ultrasound-assisted dissolution and activation are employed to prepare the vanadium electrolyte at a low temperature, thereby improving the activity of the electrolyte.
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公开(公告)号：US10053371B2
公开(公告)日：2018-08-21
申请号：US15547076
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： Chuanlin Fan , Qingshan Zhu , Wenheng Mu , Jibin Liu , Cunhu Wang , Qixun Ban
IPC分类号： C01G31/00 , C01G31/02 , B01J8/18 , B01J8/00 , B01J19/06 , B01J19/24 , B01D3/02 , B01D3/14 , B01J6/00
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 raw material, less pollution, low energy consumption in production, low operation cost, stable product quality, etc.
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公开(公告)号：US10099939B2
公开(公告)日：2018-10-16
申请号：US15547075
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： Chuanlin Fan , Qingshan Zhu , Wenheng Mu , Jibin Liu , Cunhu Wang , Qixun Ban
IPC分类号： C01G31/00 , C01G31/02 , B01D3/14 , B01F15/02 , B01J6/00 , B01J8/26 , B01L5/04 , C01B3/06 , C01G31/04 , C01B7/03
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 raw material, no discharge of contaminated wastewater, low energy consumption in production, low operation cost, stable product quality, etc.
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公开(公告)号：US20160369360A1
公开(公告)日：2016-12-22
申请号：US15109399
申请日：2014-12-30
申请人： INSTITUTE OF PROCESS ENGINEERING,CHINESE ACADEMY OF SCIENCES , BEIJING ZHONGKAIHONGDE TECHNOLOGY CO., LTD.
发明人： Qingshan Zhu , Chuanlin Fan , Hongzhong LI , Zhaohui Xie , Wenheng Mu , Cunhu Wang , Xingang Jiao
CPC分类号： C21B13/0033 , C21B2100/66 , F27B15/003 , F27B15/10 , F27B15/12 , Y02P10/136 , Y02P10/216
摘要： A system and method for fluidized reduction of iron ore powder. Use of oxidation increases the iron ore reduction rate. Use of high-gas-velocity processing accelerates iron ore reduction speed and greatly improves the gas-treatment capabilities of a unit-cross-sectional fluidized bed. Use of parallel-connections involving reduced coal gas lessens the volume of gas passing through a single-stage fluidized bed. The invention achieves the highly-effective reduction of iron ore powder in a fluidized bed under near-atmospheric pressure.
摘要翻译： 铁矿石粉末流化还原的系统和方法。 使用氧化增加铁矿石的减少率。 使用高气体速度处理加速了铁矿石的还原速度，并大大提高了单位截面流化床的气体处理能力。 使用涉及减少煤气的平行连接减少了通过单级流化床的气体体积。 本发明在接近大气压下在流化床中实现铁矿石粉末的高效还原。
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公开(公告)号：US10673088B2
公开(公告)日：2020-06-02
申请号：US16074075
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： Chuanlin Fan , Qingshan Zhu , Haitao Yang , Wenheng Mu , Jibin Liu , Cunhu Wang , Qixun Ban
摘要： 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, and reducing vanadium pentoxide into a low-valence vanadium oxide having an average vanadium valence of 3.5 adding water and a sulfuric acid solution under a microwave field applied externally for dissolution at a low temperature, to obtain a 3.5-valence high-purity vanadium electrolyte. The preparation of vanadium pentoxide by means of gas-phase hydrolysis in the fluidized bed is of short process and high efficiency. By providing an internal member within the reduction fluidized bed, 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, thereby greatly improving the activity of the electrolyte.
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公开(公告)号：US10294118B2
公开(公告)日：2019-05-21
申请号：US15547079
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： Qingshan Zhu , Chuanlin Fan , Wenheng Mu , Jibin Liu , Cunhu Wang , Qixun Ban
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 raw material, no discharge of contaminated wastewater, low energy consumption and chlorine consumption in production, stable product quality, etc.
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公开(公告)号：US10125024B2
公开(公告)日：2018-11-13
申请号：US15547068
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： Qingshan Zhu , Haitao Yang , Chuanlin Fan , Wenheng Mu , Jibin Liu , Cunhu Wang , Qixun Ban
IPC分类号： C01G31/00 , C01G31/02 , B01D3/14 , B01F15/02 , B01J6/00 , B01J8/26 , B01L5/04 , C01B21/06 , C01G31/04
摘要： The present invention provides a system and method for purifying and preparing 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 ammonification, thereby obtaining ammonium metavanadate, and further obtaining a high-purity vanadium pentoxide powder product through fluidized calcination. The system and method have advantages of favorable adaptability to raw material, no discharge of contaminated wastewater, low energy consumption and chlorine consumption in production, stable product quality etc.
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公开(公告)号：US10112846B2
公开(公告)日：2018-10-30
申请号：US15547071
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： Qingshan Zhu , Chuanlin Fan , Wenheng Mu , Jibin Liu , Cunhu Wang , Qixun Ban
摘要： The present invention provides a system and method for producing high-purity vanadium tetraoxide 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, thereby producing a high-purity vanadium pentoxide product and a by-product solution of hydrochloric acid, and further obtaining a high-purity vanadium tetraoxide powder product through fluidized hydrogen reduction. The system and method have advantages of favorable adaptability to raw material, no discharge of contaminated wastewater, low energy consumption, etc.
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公开(公告)号：US10100379B2
公开(公告)日：2018-10-16
申请号：US15109400
申请日：2014-12-30
申请人： INSTITUTE OF PROCESS ENGINEERING, CHINESE ACADEMY OF SCIENCES , BEIJING ZHONGKAIHONGDE TECHNOLOGY CO., LTD.
发明人： Qingshan Zhu , Chuanlin Fan , Hongzhong Li , Zhaohui Xie , Wenheng Mu , Cunhu Wang , Xingang Jiao
摘要： A system and method for the fluidized direct reduction of iron ore concentrate powder. A two-phase fluidized bed is used for the direct reduction of iron ore concentrate powder. Each phase of the fluidized bed is formed by a bubbling bed and a circulating bed. Use of serial-connection processing involving gas and of high-gas-velocity processing of the circulating bed increase the gas utilization rate and the reduction efficiency of single-phase reduction. Once reduced gases are subjected to preheating, each gas is sent into an initial reduction phase and a final reduction phase so as to implement reduction of minerals. Use of mixed-connection processing involving gas appropriately reduces processing pressure. Hot flue gas produced by combustion in a gas heater is sent to a mineral pre-heating system that is used for pre-heating iron ore concentrate powder.
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10.发明申请SYSTEM AND METHOD FOR FLUIDIZED DIRECT REDUCTION OF IRON ORE CONCENTRATE POWDER 审中-公开用于直接还原铁浓缩粉末的系统和方法公开(公告)号：US20160348198A1
公开(公告)日：2016-12-01
申请号：US15109400
申请日：2014-12-30
申请人： INSTITUTE OF PROCESS ENGINEERING, CHINESE ACADEMY OF SCIENCES , BEIJING ZHONGKAIHONGDE TECHNOLOGY CO., LTD.
发明人： Qingshan Zhu , Chuanlin Fan , Hongzhong Li , Zhaohui Xie , Wenheng Mu , Cunhu Wang , Xingang Jiao
CPC分类号： C21B13/0033 , C21B13/146 , C21B2100/66 , F27B15/003 , F27B15/02 , F27B15/10 , F27B15/14 , F27B15/18 , Y02P10/136
摘要： A system and method for the fluidized direct reduction of iron ore concentrate powder. A two-phase fluidized bed is used for the direct reduction of iron ore concentrate powder. Each phase of the fluidized bed is formed by a bubbling bed and a circulating bed. Use of serial-connection processing involving gas and of high-gas-velocity processing of the circulating bed increase the gas utilization rate and the reduction efficiency of single-phase reduction. Once reduced gases are subjected to preheating, each gas is sent into an initial reduction phase and a final reduction phase so as to implement reduction of minerals. Use of mixed-connection processing involving gas appropriately reduces processing pressure. Hot flue gas produced by combustion in a gas heater is sent to a mineral pre-heating system that is used for pre-heating iron ore concentrate powder.
摘要翻译： 一种用于铁矿石精矿粉末流化直接还原的系统和方法。 使用两相流化床直接还原铁精矿粉末。 流化床的每相由鼓泡床和循环床形成。 使用涉及气体的串联连接处理和循环床的高气体速度加工，提高了单相还原的气体利用率和还原效率。 一旦还原气体经受预热，每个气体被送入初始还原阶段和最终还原阶段，以便实现矿物质的还原。 使用涉及气体的混合连接处理可以适当降低加工压力。 通过在燃气加热器中燃烧产生的热烟气被送到用于预先加热铁精矿粉末的矿物预热系统。
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