-
1.发明授权Impurities removal from waste solids in the production of soda ash, sodium bicarbonate and/or other derivatives 有权在苏打灰，碳酸氢钠和/或其他衍生物的生产中从废物固体中除去杂质公开(公告)号：US08771622B2
公开(公告)日：2014-07-08
申请号：US13099501
申请日：2011-05-03
摘要： A method for removing impurities from a waste solid to provide at least a portion of a suitable crystallizer feed to a process for making crystalline sodium carbonate, bicarbonate, and/or other derivatives. The method comprises: contacting the waste solid with a leach solution to dissolve at least one impurity and dissolving the resulting leached residue. Leaching may include heap percolation. The leach solution may comprise a crystallizer purge liquor, a process waste effluent, a mine water, or mixtures thereof. The method may further comprise adding a magnesium compound to the resulting leached residue during or after its dissolution to remove another impurity. The waste solid preferably comprises a pond solid containing such impurities. The pond solid may be recovered from a pond receiving crystallizer purge liquor(s) and/or other process waste effluent(s). The pond solid may contain sodium carbonate, any hydrate thereof, sodium bicarbonate, and/or sodium sesquicarbonate. The impurities to be removed may comprise sodium chloride, sodium sulfate, silicates, and/or organics.
摘要翻译： 从废弃固体中除去杂质的方法，以提供至少一部分合适的结晶器进料，以制备结晶碳酸钠，碳酸氢盐和/或其它衍生物的方法。 该方法包括：使废弃物与浸出溶液接触以溶解至少一种杂质并溶解所产生的浸出残渣。 浸出可能包括堆渗。 浸出溶液可以包括结晶器清洗液，工艺废物流出物，矿井水或其混合物。 该方法可以进一步包括在其溶解期间或之后向所产生的浸出残渣中加入镁化合物以除去另一种杂质。 废固体优选包含含有这种杂质的池塘固体。 池塘固体可以从接收结晶器清洗液和/或其它工艺废物流出物的池中回收。 池塘固体可以含有碳酸钠，其任何水合物，碳酸氢钠和/或倍半碳酸钠。 待除去的杂质可包括氯化钠，硫酸钠，硅酸盐和/或有机物。
-
公开(公告)号：US08678513B2
公开(公告)日：2014-03-25
申请号：US13056081
申请日：2009-07-29
申请人： Ronald O. Hughes , Jean-Paul Detournay , Alain Vandendoren , Larry C. Refsdal , Joseph A. Vendetti , Michael C. Montoya
发明人： Ronald O. Hughes , Jean-Paul Detournay , Alain Vandendoren , Larry C. Refsdal , Joseph A. Vendetti , Michael C. Montoya
IPC分类号： E21B43/28
CPC分类号： E21B43/283 , E21B43/28 , E21B43/292 , E21C37/00
摘要： 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.
-
公开(公告)号：US20110127825A1
公开(公告)日：2011-06-02
申请号：US13056081
申请日：2009-07-29
申请人： Ronald O. Hughes , Jean-Paul Detournay , Alain Vandendoren , Larry C. Refsdal , Joseph A. Vendetti , Michael C. Montoya
发明人： Ronald O. Hughes , Jean-Paul Detournay , Alain Vandendoren , Larry C. Refsdal , Joseph A. Vendetti , Michael C. Montoya
IPC分类号： E21B43/28
CPC分类号： E21B43/283 , E21B43/28 , E21B43/292 , E21C37/00
摘要： 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.
摘要翻译： 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。
-
公开(公告)号：US20100279241A1
公开(公告)日：2010-11-04
申请号：US12838037
申请日：2010-07-16
IPC分类号： F27B15/12
CPC分类号： C01D7/126 , F27B7/20 , F27D17/008
摘要： Methods for heating a solid material comprising a granular material are provided. Dust is removed from the granular material before it is heated. The dust is injected into the exhaust gas from the heater. The heated dust is recovered and combined with the heated granular material.
摘要翻译： 提供了用于加热包含颗粒材料的固体材料的方法。 在加热之前将粉尘从颗粒状材料中除去。 灰尘从加热器注入废气中。 加热的灰尘被回收并与加热的颗粒材料结合。
-
公开(公告)号：US07771690B2
公开(公告)日：2010-08-10
申请号：US11591162
申请日：2006-11-01
CPC分类号： C01D7/126 , F27B7/20 , F27D17/008
摘要： Methods for heating a solid material comprising a granular material are provided. Dust is removed from the granular material before it is heated. The dust is injected into the exhaust gas from the heater. The heated dust is recovered and combined with the heated granular material.
摘要翻译： 提供了用于加热包含颗粒材料的固体材料的方法。 在加热之前将粉尘从颗粒状材料中除去。 灰尘从加热器注入废气中。 加热的灰尘被回收并与加热的颗粒材料结合。
-
公开(公告)号：US20080102008A1
公开(公告)日：2008-05-01
申请号：US11591162
申请日：2006-11-01
IPC分类号： C01D7/12
CPC分类号： C01D7/126 , F27B7/20 , F27D17/008
摘要： Methods for heating a solid material comprising a granular material are provided. Dust is removed from the granular material before it is heated. The dust is injected into the exhaust gas from the heater. The heated dust is recovered and combined with the heated granular material.
摘要翻译： 提供了用于加热包含颗粒材料的固体材料的方法。 在加热之前将粉尘从颗粒状材料中除去。 灰尘从加热器注入废气中。 加热的灰尘被回收并与加热的颗粒材料结合。
-
-
-
-
-
搜索结果
6 条记录 (耗时 0.026 秒)