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公开(公告)号：US20160348197A1
公开(公告)日：2016-12-01
申请号：US15109393
申请日：2014-12-30
申请人： INSTITUTE OF PROCESS ENGINEERING, CHINESE ACADEMY OF SCIENCE , BEIJING ZHONGKAIHONGDE TECHNOLOGY CO., LTD.
发明人： Qingshan Zhu , Chuanlin Fan , Hongzhong Li , Zhaohui z Xie , Wenheng Mu , Cunhu Wang , Xingang Jiao
CPC分类号： C21B13/0033 , C21B13/146 , F27B15/003 , F27B15/02 , F27B15/10 , F27B15/14 , F27B15/18 , Y02P10/136 , Y02P10/216
摘要： A system for fluidized bed reduction of powdered iron ore. 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. Use of serial/parallel-connection processing involving reduced coal gas increases the coal gas utilization rate. The invention achieves the highly-effective reduction of powdered iron ore in a fluidized bed under near-atmospheric pressure. A reduction method based on the present system is also disclosed.
摘要翻译： 粉状铁矿石流化床还原系统。 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。 使用涉及还原煤气的平行连接减少通过单级流化床的气体体积。 使用涉及减少煤气的串联/并联处理提高了煤气利用率。 本发明在接近大气压下在流化床中实现铁粉的高效还原。 还公开了一种基于本系统的还原方法。
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公开(公告)号：US10233510B2
公开(公告)日：2019-03-19
申请号：US15109393
申请日：2014-12-30
申请人： INSTITUTE OF PROCESS ENGINEERING, CHINESE ACADEMY OF SCIENCE , 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 for fluidized bed reduction of powdered iron ore. 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. Use of serial/parallel-connection processing involving reduced coal gas increases the coal gas utilization rate. The invention achieves the highly-effective reduction of powdered iron ore in a fluidized bed under near-atmospheric pressure. A reduction method based on the present system is also disclosed.
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公开(公告)号：US10202662B2
公开(公告)日：2019-02-12
申请号：US15109399
申请日：2014-12-30
申请人： INSTITUTE OF PROCESS ENGINEERING, CHINESE ACADEMY OF SCIENCE , 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 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.
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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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