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1.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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3.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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公开(公告)号：US09902622B2
公开(公告)日：2018-02-27
申请号：US14416677
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 zirconium boride and synchronously preparing a cryolite is provided which includes the following steps: Step A: placing aluminum in a reactor, heating the reactor to 700-850 degrees centigrade, and adding the mixture of fluorozirconate and fluoborate; and Step B: stirring the reactants for 4-6 hours and extracting the upper molten liquid to obtain a cryolite, wherein the lower substance is zirconium boride. The disclosure has the following beneficial effects: the new zirconium boride preparation method provided herein is simple in preparation flow and the device used, short in preparation period and high in reaction efficiency, the prepared zirconium boride with many contact angles has a large specific surface area and contains a controllable amount of aluminum.
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5.发明授权公开(公告)号：US09856571B2
公开(公告)日：2018-01-02
申请号：US13709011
申请日：2012-12-09
发明人： Xuemin Chen , Jun Yang , Zhihong Li , Weiping Wu
摘要： The disclosure provides low-molecular-ratio cryolite for aluminum electrolytic industry, which consists of potassium cryolite and sodium cryolite with a mole ratio of 1:1˜1:3, wherein the molecular formula of the potassium cryolite is mKF.AlF3 and the molecular formula of the sodium cryolite is nNaF.AlF3, where m=1˜1.5 and n=1˜1.5. When the low-molecular-ratio cryolite provided by the disclosure is applied to the aluminum electrolytic industry, electrolytic temperature and power consumption can be reduced and electrolytic efficiency is improved.
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公开(公告)号：US09546095B2
公开(公告)日：2017-01-17
申请号：US14160661
申请日：2014-01-22
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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7.发明授权公开(公告)号：US08679318B2
公开(公告)日：2014-03-25
申请号：US13709022
申请日：2012-12-09
发明人： Xuemin Chen , Jun Yang , Zhihong Li , Weiping Wu
摘要： The disclosure provides an electrolyte supplement system in an aluminum electrolysis process, which includes low-molecular-ratio cryolite, wherein the low-molecular-ratio cryolite is selected from mKF.AlF3, nNaF.AlF3 or mixture thereof, where m=1˜1.5 and n=1˜1.5. When the electrolyte supplement system provided by the disclosure is applied to the aluminum electrolytic industry, electrolytic temperature can be reduced obviously in the aluminum electrolysis process without changing the existing electrolytic process; thus, power consumption is reduced, volatilization loss of fluoride is reduced and the comprehensive cost of production is reduced.
摘要翻译： 本公开提供了一种铝电解方法中的电解质补充体系，其包括低分子比冰晶石，其中低分子比冰晶石选自mKF.AlF3，nNaF.AlF3或其混合物，其中m = 1〜1.5 n = 1〜1.5。 当本公开提供的电解质补充体系应用于铝电解工业时，铝电解过程中的电解温度可以明显降低，而不改变现有的电解过程; 因此，功耗降低，氟化物的挥发损失降低，综合生产成本降低。
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8.发明授权Method for cyclically preparing monomer boron and coproducing potassium cryolite using potassium fluoborate as intermediate material 失效使用氟硼酸钾作为中间体循环制备单体硼和共同生产钾冰晶石的方法公开(公告)号：US08562931B2
公开(公告)日：2013-10-22
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：US10309021B2
公开(公告)日：2019-06-04
申请号：US14413473
申请日：2012-11-21
发明人： Xuemin Chen , Jun Yang , Zhihong Li , Weiping Wu , Shiming Wei
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.
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10.发明授权公开(公告)号：US09611151B2
公开(公告)日：2017-04-04
申请号：US14160660
申请日：2014-01-22
发明人： Xuemin Chen , Jun Yang , Zhihong Li , Weiping Wu
摘要： The disclosure provides an electrolyte supplement system in an aluminum electrolysis process, which includes low-molecular-ratio cryolite, wherein the low-molecular-ratio cryolite is selected from mKF.AlF3, nNaF.AlF3 or mixture thereof, where m=1˜1.5 and n=1˜1.5. When the electrolyte supplement system provided by the disclosure is applied to the aluminum electrolytic industry, electrolytic temperature can be reduced obviously in the aluminum electrolysis process without changing the existing electrolytic process; thus, power consumption is reduced, volatilization loss of fluoride is reduced and the comprehensive cost of production is reduced.
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