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公开(公告)号：US20230043273A1
公开(公告)日：2023-02-09
申请号：US17793416
申请日：2020-05-28
发明人： Xuemin CHEN , Ronald Ray DUCKWORTH , Yueming YU , Qingchao WANG
摘要： Disclosed are a manganese-aluminum alloy and its preparation method. The manganese-aluminum alloy comprises, by weight, 5% to 90% of manganese and the balance of aluminum. The method comprises: adding metal aluminum or molten aluminum to a container, the temperature of the molten aluminum being between 700° C. and 800° C.; adding a metal manganese raw material to the molten aluminum, closing a furnace cover, measuring the pressure, and introducing argon to ensure that the interior of a magnetic induction furnace is in a positive-pressure state, and stirring the mixture with a graphite stirring head; powering on and heating the metal aluminum or the molten aluminum to 1000° C. or above, melting, and holding the temperature between 1000° C. and 1500° C.; and after alloying is completed, cooling to 850° C. or below, opening the furnace cover, and taking a manganese-aluminum alloy out.
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2.发明授权Method for preparing aluminum-zirconium-boron alloy and synchronously preparing crylite 有权制备铝 - 锆 - 硼合金并同步制备镁石的方法公开(公告)号：US09546098B2
公开(公告)日：2017-01-17
申请号：US14416674
申请日：2012-11-26
发明人： Xuemin Chen , Jun Yang , Zhihong Li , Weiping Wu , Shiming Wei
摘要： A method for preparing an aluminum-zirconium-boron alloy and synchronously preparing a cryolite is provided. The method includes the following steps: Step A: placing aluminum in a reactor, heating the reactor to 700-850 degrees centigrade, and adding a mixture consisting of fluorozirconate and fluoborate in a molar ratio of x: y into the reactor; Step B: stirring the reactants for 4-6 hours and extracting the upper molten liquid to obtain a cryolite, wherein the lower substance is an aluminum-zirconium-boron alloy, and aluminum is added in an excess amount. The method provided herein for preparing an aluminum-zirconium-boron alloy which is mild in reaction condition, easy to control and simple in technical flow can prepare a high-quality product through a complete reaction, besides, the use of the synchronously prepared low molecular ratio cryolites (KF.AlF3 and NaF.AlF3) in the aluminum electrolysis industry can achieve a proper electrical conductivity.
摘要翻译： 提供了制备铝 - 锆 - 硼合金并同时制备冰晶石的方法。 该方法包括以下步骤：步骤A：将铝置于反应器中，将反应器加热至700-850摄氏度，并将由氟锆酸盐和氟硼酸盐组成的混合物以x：y的摩尔比加入到反应器中; 步骤B：搅拌反应物4-6小时，提取上部熔融液体，得到冰晶石，其中低级物质为铝 - 锆 - 硼合金，并以过量的量加入铝。 本文提供的制备在反应条件温和，易于控制和工艺流程简单的铝 - 锆 - 硼合金的方法可以通过完全反应制备高品质的产品，此外，使用同步制备的低分子量 铝电解工业中的比例冰晶石（KF.AlF3和NaF.AlF3）可以实现适当的导电性。
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公开(公告)号：US08709368B2
公开(公告)日：2014-04-29
申请号：US13709025
申请日：2012-12-09
发明人： Xuemin Chen , Jun Yang , Zhihong Li , Weiping Wu
摘要： The invention provides a preparation process of transition metal boride, comprising the following steps: A) aluminum is put in a reactor, inert gas is fed into the reactor after evacuation, the reactor is heated up to 700 to 800° C. and then added with dry potassium fluoborate or sodium fluoborate, monomer boron and cryolite are generated by rapid stirring and reaction for 4 to 6 hours, and the molten liquid at the upper layer is sucked out and the monomer boron is obtained by means of separation; and B) the obtained monomer boron is added with transition metal for reaction at the temperature from 1800 to 2200° C. in order to generate corresponding transition metal boride.
摘要翻译： 本发明提供了一种过渡金属硼化物的制备方法，包括以下步骤：A）将铝放入反应器中，抽真空后将惰性气体送入反应器中，将反应器加热至700至800℃，然后加入 用干燥的氟硼酸钾或氟硼酸钠，通过快速搅拌反应4至6小时产生单体硼和冰晶石，吸出上层熔融液，通过分离获得单体硼; 和B）所得单体硼在1800-2200℃的温度下加入反应过渡金属，以产生相应的过渡金属硼化物。
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4.发明授权公开(公告)号：US08641996B2
公开(公告)日：2014-02-04
申请号：US13709023
申请日：2012-12-09
发明人： Xuemin Chen , Yueming Yu , Qingdong Ye , Jun Yang , Zhi Zhou
摘要： A cyclic preparation method including the following steps: a) boric acid or boric anhydride is added with hydrofluoric acid and then with potassium sulfate for reaction to generate potassium fluoborate; titanium-iron concentrate is added with hydrofluoric acid and then with potassium sulfate for reaction to generate potassium fluotitanate; B) the potassium fluoborate is mixed with the potassium fluotitanate, and the mixture reacts with aluminum to generate titanium boride and potassium cryolite; C) the potassium cryolite is sucked out and then fed into a rotary reaction kettle together with concentrated sulfuric acid, hydrogen fluoride gas as well as potassium sulfate and potassium aluminum sulfate are generated by reaction in the rotary reaction kettle, and the hydrogen fluoride gas is collected and then dissolved in water to obtain hydrofluoric acid aqueous solution; and D) the obtained hydrofluoric acid aqueous solution and potassium sulfate aqueous solution are recycled.
摘要翻译： 一种循环制备方法，包括以下步骤：a）向氢氟酸中加入硼酸或硼酸酐，然后加入硫酸钾反应生成氟硼酸钾; 加入铁 - 铁精矿与氢氟酸，然后加硫酸钾反应生成氟钛酸钾; B）氟硼酸钾与氟钛酸钾混合，混合物与铝反应产生硼化钛和冰晶石; C）将钾冰晶石吸出，然后与浓硫酸一起进料到旋转反应釜中，通过在旋转反应釜中反应产生氟化氢气体以及硫酸钾和硫酸铝钾，氟化氢气体为 收集，然后溶于水，得到氢氟酸水溶液; 和D）得到的氢氟酸水溶液和硫酸钾水溶液被回收。
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5.发明申请公开(公告)号：US20130095023A1
公开(公告)日：2013-04-18
申请号：US13708959
申请日：2012-12-08
发明人： Xuemin CHEN , Yueming YU , Qingdong YE , Jun YANG , Zhi ZHOU
IPC分类号： C01B35/02
CPC分类号： C01B35/023 , C01B35/066 , C01F7/34 , C01F7/54
摘要： A method for cyclically preparing monomer boron and coproducing potassium cryolite using potassium fluoborate as an intermediate material, which includes following steps: A) adding hydrofluoric acid to boric acid or boron oxide to enable a reaction to form fluoboric acid; B) adding a potassium sulphate aqueous solution to the fluoboric acid to enable a reaction to form the potassium fluoborate; C) putting the potassium fluoborate into a reactor, adding aluminium to react with the potassium fluoborate to form the monomer boron and potassium cryolite; D) extracting the potassium cryolite, sending the potassium cryolite to a rotary reaction kettle together with concentrated sulphuric acid to enable a reaction to form hydrogen fluoride gas and aluminium potassium sulphate, potassium sulphate, collecting the hydrogen fluoride gas and dissolving it into water to obtain the hydrofluoric acid; E) recycling the obtained hydrofluoric acid to Step A to leach the boric acid or boron oxide.
摘要翻译： 使用氟硼酸钾作为中间体循环制备单体硼并共同生产钾冰晶石的方法，其包括以下步骤：A）向硼酸或氧化硼中加入氢氟酸以使反应形成氟硼酸; B）向氟硼酸中加入硫酸钾水溶液以使其形成氟硼酸钾; C）将氟硼酸钾放入反应器中，加入铝与氟硼酸钾反应形成单体硼和钾冰晶石; D）提取钾冰晶石，将钾冰晶石与浓硫酸一起送入旋转反应釜，使反应生成氟化氢气体和硫酸铝钾，硫酸钾，收集氟化氢气体并将其溶于水中，得到 氢氟酸; E）将获得的氢氟酸循环到步骤A以浸出硼酸或氧化硼。
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公开(公告)号：US20130095022A1
公开(公告)日：2013-04-18
申请号：US13709025
申请日：2012-12-09
发明人： Xuemin CHEN , Jun YANG , Zhihong LI , Weiping WU
IPC分类号： C01B35/04
摘要： The invention provides a preparation process of transition metal boride, comprising the following steps: A) aluminum is put in a reactor, inert gas is fed into the reactor after evacuation, the reactor is heated up to 700 to 800° C. and then added with dry potassium fluoborate or sodium fluoborate, monomer boron and cryolite are generated by rapid stirring and reaction for 4 to 6 hours, and the molten liquid at the upper layer is sucked out and the monomer boron is obtained by means of separation; and B) the obtained monomer boron is added with transition metal for reaction at the temperature from 1800 to 2200° C. in order to generate corresponding transition metal boride.
摘要翻译： 本发明提供了一种过渡金属硼化物的制备方法，包括以下步骤：A）将铝放入反应器中，抽真空后将惰性气体送入反应器中，将反应器加热至700至800℃，然后加入 用干燥的氟硼酸钾或氟硼酸钠，通过快速搅拌反应4至6小时产生单体硼和冰晶石，吸出上层熔融液，通过分离获得单体硼; 和B）所得单体硼在1800-2200℃的温度下加入反应过渡金属，以产生相应的过渡金属硼化物。
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7.发明申请公开(公告)号：US20130095020A1
公开(公告)日：2013-04-18
申请号：US13708961
申请日：2012-12-08
发明人： Xuemin CHEN , Yueming YU , Qingdong YE , Jun YANG , Zhi ZHOU
IPC分类号： C01B35/04
摘要： A cyclic preparation method for producing titanium boride from intermediate feedstock sodium-based titanium-boron-fluorine salt mixture and producing sodium cryolite as byproduct, which comprises the steps: a) boric acid or boric anhydride is added with hydrofluoric acid and then with sodium carbonate solution for concentration and crystallization to generate sodium fluoborate; titanium-iron concentrate is added with hydrofluoric acid and then with sodium carbonate and sodium hydroxide to obtain sodium fluotitanate; B) the sodium fluoborate is mixed with the sodium fluotitanate, and the mixture reacts with aluminum to generate titanium boride and sodium cryolite; C) the sodium cryolite is sucked out and then fed into a rotary reaction kettle together with concentrated sulfuric acid, hydrogen fluoride gas as well as sodium sulfate and sodium aluminum sulfate are generated by reaction in the rotary reaction kettle, and the hydrogen fluoride gas is collected and then dissolved in water to obtain hydrofluoric acid aqueous solution; and D) the obtained hydrofluoric acid aqueous solution is recycled.
摘要翻译： 一种从中间体原料钠基钛硼氟盐混合物制备钛硼化物并生产作为副产物的冰晶石钠的循环制备方法，其包括以下步骤：a）向硼酸或硼酸酐中加入氢氟酸，然后加入碳酸钠 浓度和结晶溶液产生氟硼酸钠; 加入铁 - 铁精矿，加入氢氟酸，然后加入碳酸钠和氢氧化钠，得到氟钛酸钠; B）氟硼酸钠与氟钛酸钠混合，混合物与铝反应产生硼化钛和钠冰晶石; C）将冰晶石钠吸出，然后与浓硫酸一起进料到旋转反应釜中，通过在旋转反应釜中反应产生氟化氢气体以及硫酸钠和硫酸铝钠，氟化氢气体为 收集，然后溶于水，得到氢氟酸水溶液; 和D）将所得氢氟酸水溶液再循环。
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公开(公告)号：US10202701B2
公开(公告)日：2019-02-12
申请号：US14160663
申请日：2014-01-22
发明人： Xuemin Chen , Jun Yang , Zhihong Li , Weiping Wu
摘要： The invention provides a potassium cryolite for aluminum electrolysis industry, which has a molecular formula: mKF.AlF3, wherein m is from 1 to 1.5. The low-molecular-ratio potassium cryolite (mKF.AlF3, and m is from 1 to 1.5) provided by the invention is used for aluminum electrolysis industry, and can improve the dissolvability of aluminum oxide, thus reducing the temperature of electrolysis and the consumption of power, raising the efficiency of electrolysis and lowering the comprehensive production cost.
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公开(公告)号：US09957588B2
公开(公告)日：2018-05-01
申请号：US14521569
申请日：2014-10-23
发明人： Xuemin Chen , Qingdong Ye , Yueming Yu , Jianguo Li
摘要： The present invention pertains to the field of metal alloy, and discloses an aluminum-zirconium-titanium-carbon grain refiner for magnesium and magnesium alloys, having a chemical composition of: 0.01%˜10% Zr, 0.01%˜10% Ti, 0.01%˜0.3% C, and Al in balance, based on weight percentage. Also, the present invention discloses the method for preparing the grain refiner. The grain refiner according to the present invention is an Al—Zr—Ti—C intermediate alloy having great nucleation ability and in turn excellent grain refining performance for magnesium and magnesium alloys, and is industrially applicable in the casting and rolling of magnesium and magnesium alloy profiles, enabling the wide use of magnesium in industries.
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10.发明申请METHOD FOR PREPARING AN ELECTROLYTE AND AN ELECTROLYTE REPLENISHMENT SYSTEM DURING ALUMINUM ELECTROLYSIS PROCESS 审中-公开在铝电解过程中制备电解质和电解质补充体系的方法公开(公告)号：US20150203978A1
公开(公告)日：2015-07-23
申请号：US14413473
申请日：2012-11-21
发明人： Xuemin Chen , Jun Yang , Zhihong Li , Weiping Wu , Shiming Wei
IPC分类号： C25C3/18
摘要： The disclosure provides a method for preparing an electrolyte and an electrolyte replenishment system during an electrolytic process. The method includes the following steps: Step A: placing aluminum in a reactor, vacuumizing the reactor and feeding an inert gas, heating the reactor to 700-850 degrees centigrade, and adding one or more of potassium fluozirconate, potassium fluoborate, sodium hexafluorozirconate and sodium fluoroborate; and Step B: stirring the reactants for 4-6 hours and extracting the upper molten liquid to obtain an electrolyte replenishment system during an aluminum electrolysis process. The disclosure has the following beneficial effects: when used in the aluminum electrolysis industry, the electrolyte system provided herein can be directly used as an aluminum electrolyte or a replenishment system in an electrolyte without changing existing electrolysis technology to significantly reduce an electrolysis temperature during an aluminum electrolysis process.
摘要翻译： 本公开提供了在电解过程中制备电解质和电解质补充系统的方法。 该方法包括以下步骤：步骤A：将铝置于反应器中，对反应器进行抽真空并送入惰性气体，将反应器加热至700-850摄氏度，并加入一种或多种氟化钾钾，氟硼酸钾，六氟锆酸钠和 氟硼酸钠; 和步骤B：搅拌反应物4-6小时，并在铝电解过程中提取上部熔融液体以获得电解质补充体系。 本公开具有以下有益效果：当用于铝电解工业时，本文提供的电解质体系可以直接用作电解液中的铝电解质或补充体系，而不改变现有的电解技术，以显着降低铝期间的电解温度 电解过程。
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