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    • 1. 发明申请
    • Traveling undercut solution mining systems and methods
    • 旅行底切解决方案挖掘系统和方法
    • US20160115774A1
    • 2016-04-28
    • US14991420
    • 2016-01-08
    • SOLVAY CHEMICALS, INC.
    • Ronald O. HUGHESJean-Paul DETOURNAYAlain VANDENDORENLarry C. REFSDALJoseph A. VENDETTIMichael C. MONTOYA
    • E21B43/28
    • E21B43/283E21B43/28E21B43/292E21C37/00
    • In-situ solution mining method of an ore bed, particularly containing trona, which comprises exposing to a solvent an ore region inside a borehole drilled in the ore, and dissolving a desired solute within the exposed region to provide a liquor and create a voided ‘undercut’, such undercutting making the ore susceptible to gravitational loading and crushing. Unexposed ore falls into the undercut by gravity without breaking the ore roof resulting in exposure of fresh ore to the solvent and in preventing solvent exposure to contaminating material near the roof. The desired solute is eventually dissolved away in the entire bed from its floor up to its roof. Solvent injection may be delivered through a conduit positioned inside the borehole, and may be moved by retracting or perforating the conduit. The method may employ an advancing undercut initiated up-dip and traveling down-dip, or a retreating undercut initiated down-dip and traveling up-dip.
    • 特别是含有天然碱的矿床的原位溶液开采方法,其包括将在矿石钻出的钻孔内的矿石区域暴露于溶剂,并将期望的溶质溶解在暴露的区域内以提供液体并产生空隙的“ 底切“,这种底切使得矿石易于引力加载和破碎。 未发现的矿石通过重力落入底切而不破坏矿顶,导致新鲜矿石暴露于溶剂中并防止溶剂暴露于屋顶附近的污染物质。 期望的溶质最终从其地板直到其顶部溶解在整个床中。 溶剂注射可以通过位于钻孔内部的导管输送,并且可以通过缩回或穿孔导管来移动。 该方法可以采用推进的底切启动的向上倾斜和行进下倾,或者采用后退的底切开始向下倾斜和向上移动。
    • 6. 发明申请
    • Traveling undercut solution mining systems and methods
    • 旅行底切解决方案挖掘系统和方法
    • US20140225415A1
    • 2014-08-14
    • US14222573
    • 2014-03-21
    • SOLVAY CHEMICALS, INC.
    • Ronald O. HUGHESJean-Paul DETOURNAYAlain VANDENDORENLarry C. REFSDALJoseph A. VENDETTIMichael C. MONTOYA
    • E21B43/28
    • E21B43/283E21B43/28E21B43/292E21C37/00
    • In-situ solution mining method of an ore bed, particularly containing trona, which comprises exposing to a solvent an ore region inside a borehole drilled in the ore, and dissolving a desired solute within the exposed region to provide a liquor and create a voided ‘undercut’, such undercutting making the ore susceptible to gravitational loading and crushing. Unexposed ore falls into the undercut by gravity without breaking the ore roof resulting in exposure of fresh ore to the solvent and in preventing solvent exposure to contaminating material near the roof. The desired solute is eventually dissolved away in the entire bed from its floor up to its roof. Solvent injection may be delivered through a conduit positioned inside the borehole, and may be moved by retracting or perforating the conduit. The method may employ an advancing undercut initiated up-dip and traveling down-dip, or a retreating undercut initiated down-dip and traveling up-dip.
    • 特别是含有天然碱的矿床的原位溶液开采方法,其包括将在矿石钻出的钻孔内的矿石区域暴露于溶剂,并将期望的溶质溶解在暴露的区域内以提供液体并产生空隙的“ 底切“,这种底切使得矿石易于引力加载和破碎。 未发现的矿石通过重力落入底切而不破坏矿顶,导致新鲜矿石暴露于溶剂中并防止溶剂暴露于屋顶附近的污染物质。 期望的溶质最终从其地板直到其顶部溶解在整个床中。 溶剂注射可以通过位于钻孔内部的导管输送,并且可以通过缩回或穿孔导管来移动。 该方法可以采用推进的底切启动的向上倾斜和行进下倾,或者采用后退的底切开始向下倾斜和向上移动。
    • 8. 发明授权
    • Traveling undercut solution mining systems and methods
    • 旅行底切解决方案挖掘系统和方法
    • US09581006B2
    • 2017-02-28
    • US14991420
    • 2016-01-08
    • SOLVAY CHEMICALS, INC.
    • Ronald O. HughesJean-Paul DetournayAlain VandendorenLarry C. RefsdalJoseph A. VendettiMichael C. Montoya
    • E21B43/28E21B43/29
    • E21B43/283E21B43/28E21B43/292E21C37/00
    • In-situ solution mining method of an ore bed, particularly containing trona, which comprises exposing to a solvent an ore region inside a borehole drilled in the ore, and dissolving a desired solute within the exposed region to provide a liquor and create a voided ‘undercut’, such undercutting making the ore susceptible to gravitational loading and crushing. Unexposed ore falls into the undercut by gravity without breaking the ore roof resulting in exposure of fresh ore to the solvent and in preventing solvent exposure to contaminating material near the roof. The desired solute is eventually dissolved away in the entire bed from its floor up to its roof. Solvent injection may be delivered through a conduit positioned inside the borehole, and may be moved by retracting or perforating the conduit. The method may employ an advancing undercut initiated up-dip and traveling down-dip, or a retreating undercut initiated down-dip and traveling up-dip.
    • 特别是含有天然碱的矿床的原位溶液开采方法,其包括将在矿石钻出的钻孔内的矿石区域暴露于溶剂,并将期望的溶质溶解在暴露的区域内以提供液体并产生空隙的“ 底切“,这种底切使得矿石易于引力加载和破碎。 未发现的矿石通过重力落入底切而不破坏矿顶,导致新鲜矿石暴露于溶剂中并防止溶剂暴露于屋顶附近的污染物质。 期望的溶质最终从其地板直到其顶部溶解在整个床中。 溶剂注射可以通过位于钻孔内部的导管输送,并且可以通过缩回或穿孔导管来移动。 该方法可以采用推进的底切启动的向上倾斜和行进下倾,或者采用后退的底切开始向下倾斜和向上移动。
    • 10. 发明申请
    • Production of crystalline sodium bicarbonate using CO2 recovered from another alkali production process
    • 使用从另一个碱生产过程回收的二氧化碳生产结晶碳酸氢钠
    • US20150175434A1
    • 2015-06-25
    • US14576844
    • 2014-12-19
    • SOLVAY CHEMICALS, INC.
    • James C. KISIELEWSKIDavid M. HANSEN
    • C01D5/14C01D7/10
    • C01D5/14C01D7/10
    • A process for the joint production of crystalline sodium bicarbonate and another alkali compound, in which the step for producing such alkali compound generates CO2 as a byproduct, at least a portion of which is used as a feed to the sodium bicarbonate production step. The produced alkali compound is preferably crystalline sodium sulfite. The joint production process preferably employs as feedstock one or more sodium carbonate liquors derived from trona ore. A gas feed which contains CO2 byproduct is subjected to a gas treatment which may include water removal and/or compression before it is used to produce sodium bicarbonate crystals from a sodium carbonate liquor. Such gas feed may comprise a reactor offgas exiting a sulfite reactor; a vent gas exiting a feed or surge tank; a decarbonation gas exiting a decarbonation unit; a vent gas vented from a crystallizer heater; or combinations of two or more thereof.
    • 用于联合生产结晶碳酸氢钠和另一种碱性化合物的方法,其中生产这种碱性化合物的步骤产生作为副产物的CO 2,其中至少一部分用作碳酸氢钠生产步骤的进料。 所制备的碱性化合物优选为结晶亚硫酸钠。 联合生产方法优选使用一种或多种衍生自天然碱矿石的碳酸钠液体作为原料。 含有二氧化碳副产物的气体进料经过气体处理,其可以包括除水和/或压缩,然后用于从碳酸钠液体制备碳酸氢钠晶体。 这种气体进料可以包括离开亚硫酸盐反应器的反应器废气; 离开进料或缓冲罐的排气; 离开脱碳单元的脱碳气体; 从结晶器加热器排出的排放气体; 或其两种或更多种的组合。