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1. 发明申请

WO2023023861A1 INTEGRATED PRESSURE OXIDATIVE LEACH OF COPPER SULPHIDIC FEED WITH COPPER HEAP LEACH 审中-公开
公开(公告)号：WO2023023861A1
公开(公告)日：2023-03-02
申请号：PCT/CA2022/051286
申请日：2022-08-25
申请人： SHERRITT INTERNATIONAL CORPORATION
发明人： HOLLOWAY, Preston Carl , SMIT, Jan Tjeerd , MOLAEI, Aysan
IPC分类号： C22B3/08 , B01D11/02 , C22B3/22 , C22B3/46 , C22B15/00
摘要： Integrated pressure leaching, heap leaching process for recovering copper from sulphidic feed containing iron, arsenic, and copper. Aqueous feed slurry of sulphidic feed is pressure oxidized to form a liquid phase containing free sulphuric acid and aqueous copper sulphate, and to precipitate arsenic as solid iron arsenic compounds. Treated slurry is withdrawn from the pressure vessel and the liquid phase is separated from the solids. Copper is recovered from the separated liquid phase and generates a solution enriched in acid and depleted in copper. This solution is neutralized in a copper heap leach to produce a PLS containing copper and reduced in acid. The heap leach PLS is neutralized to produce a solution further reduced in acid, and solids containing copper precipitates, followed by a liquid solid separation. The solution further reduced in acid is recycled as process solution for the pressure leach. The solids containing copper precipitates are recycled to combine with either the treated slurry from the pressure leach, or the liquid phase from liquid solid separation, to re-dissolve copper and other metal values. The solids from the latter step are separated and the liquid phase is fed to copper recovery.

2. 发明申请

WO2022178628A1 CO-PROCESSING OF COPPER SULPHIDE CONCENTRATE WITH NICKEL LATERITE ORE 审中-公开
公开(公告)号：WO2022178628A1
公开(公告)日：2022-09-01
申请号：PCT/CA2022/050257
申请日：2022-02-23
申请人： SHERRITT INTERNATIONAL CORPORATION
发明人： SMIT, Jan , HOLLOWAY, Preston Carl , COLLINS, Michael Joseph , TSHILOMBO, Alain , TUFFREY, Nigel Edwin
IPC分类号： C22B3/08 , C22B3/22 , C22B3/26 , C25C1/12 , C22B15/00 , C22B23/00
摘要： A hydrometallurgical method for recovering nickel, cobalt and copper from a feed comprising copper-containing sulphide concentrate and nickel laterite ore comprises the steps of: (1) pressure leaching the feed with oxygen introduction to generate sulphuric acid and obtain an acid leach slurry comprising a liquid phase comprising nickel, cobalt, copper and impurities; (2) neutralizing the acid leach slurry and separating the liquid phase by counter- current decantation to obtain a pregnant leach solution (PLS); (3) subjecting the (PSL) to a first solution purification to remove impurities to obtain first purified solution; (4) subjecting the first purified solution to solvent extraction to obtain copper-loaded organic phase and raffinate; (5) stripping copper from the copper-loaded organic phase and recovering copper by electrowinning; (6) subjecting the raffinate to second solution purification to remove remaining impurities and obtain second purified solution from which nickel and cobalt are recovered as mixed hydroxides or sulphides.

3. 发明申请

WO2017185166A1 PROCESS FOR PARTIAL UPGRADING OF HEAVY OIL 审中-公开
标题翻译：重油的部分升级过程
公开(公告)号：WO2017185166A1
公开(公告)日：2017-11-02
申请号：PCT/CA2017/000098
申请日：2017-04-25
申请人： SHERRITT INTERNATIONAL CORPORATION
发明人： MALEK ABBASLOU, Mohammad Reza , ABBASPOUR GHARAMALEK, Ali , HUQ, Iftikhar , MARSH, John Henry
IPC分类号： C10G49/22
摘要： A process is provided to partially upgrade heavy oil using two or more reaction zones connected in series, each reaction zone being a continuous stirred tank maintained at hydrocracking conditions. The heavy oil feedstock and a solid particulate catalyst are stirred to form a pumpable slurry which is heated to a target hydrocracking temperature and then continuously fed to the first reaction zone. Hydrogen is continuously introduced to the reaction zone to achieve hydrocracking and to produce a volatile vapour stream carried upwardly by the hydrogen to produce an overhead vapour stream. The hydrocracked heavy oil slurry from one reaction zone is fed to a next reaction zone also maintained under hydrocracking conditions with a continuous hydrogen feed to produce a volatile vapour stream carried upwardly by the hydrogen. The overhead vapour stream from each reactor zone is continuously removed, and the hydrocracked heavy oil slurry from the last of the reaction zones is removed to provide a partially upgraded heavy oil slurry.
摘要翻译：提供了使用串联连接的两个或更多个反应区来部分提升重油的方法，每个反应区是保持在加氢裂化条件下的连续搅拌罐。搅拌重油原料和固体颗粒催化剂以形成可泵送浆料，将其加热至目标加氢裂化温度，然后连续进料至第一反应区。将氢气连续引入反应区以实现加氢裂化并产生由氢向上携带的挥发性蒸气流以产生塔顶蒸气流。将来自一个反应区的加氢裂化重油淤浆送入下一个反应区，该反应区在加氢裂化条件下也保持连续的氢气进料以产生由氢向上携带的挥发性蒸气流。来自每个反应器区域的顶部蒸气流被连续地除去，并且从最后的反应区域中除去加氢裂化的重油淤浆以提供部分升级的重油淤浆。

4. 发明申请

WO2014134708A1 METHOD OF RECOVERING NICKEL OR COBALT WHILE MITIGATING CORROSION 审中-公开
标题翻译：在缓解腐蚀的同时回收镍或钴的方法
公开(公告)号：WO2014134708A1
公开(公告)日：2014-09-12
申请号：PCT/CA2014/000170
申请日：2014-03-05
申请人： SHERRITT INTERNATIONAL CORPORATION
发明人： BUDAC, James , KOFLUK, Russ , MANKASINGH, Sandy , KALANCHEY, Robin
IPC分类号： C22B7/00 , C22B3/06 , C22B3/44 , C23F1/44 , C22B23/00
CPC分类号： C22B23/0438 , C22B3/065 , C22B7/00 , C22B23/00 , C23F1/28 , C23F1/44 , Y02P10/212
摘要： There is provided a method of recovering at least one target metal which is adhered to a stainless steel surface, while mitigating corrosion to the stainless steel surface. The target metal is nickel or cobalt. The method comprises contacting an operative aqueous treatment solution with an operative solid material adhered to a stainless steel surface. The target metal is nickel or cobalt. The operative solid material includes at least one target metal, and at least a fraction of the at least one target metal of the operative solid material is disposed in metallic form. The operative aqueous treatment solution includes soluble treatment material, wherein the soluble treatment material includes nitric acid and copper-comprising material.
摘要翻译：提供了一种回收至少一种目标金属的方法，其粘附到不锈钢表面上，同时减轻对不锈钢表面的腐蚀。目标金属是镍或钴。该方法包括使可操作的水性处理溶液与粘附到不锈钢表面的可操作固体材料接触。目标金属是镍或钴。手术固体材料包括至少一种目标金属，并且至少一部分操作固体材料的至少一种目标金属以金属形式设置。操作性水处理溶液包括可溶性处理材料，其中可溶性处理材料包括硝酸和含铜材料。

5. 发明申请

WO2018187855A1 LOW ACIDITY, LOW SOLIDS PRESSURE OXIDATIVE LEACHING OF SULPHIDIC FEEDS 审中-公开
公开(公告)号：WO2018187855A1
公开(公告)日：2018-10-18
申请号：PCT/CA2018/000071
申请日：2018-04-10
申请人： SHERRITT INTERNATIONAL CORPORATION
发明人： SMIT, Jan, Tjeerd , HOLLOWAY, Preston, Carl
IPC分类号： C22B3/04 , B01D11/02 , C22B3/20 , C22B30/04 , C22B11/00 , C22B15/00
摘要： Process for recovering one or both of copper and silver from a sulphidic feed containing iron, arsenic, copper and silver by pressure oxidizing an aqueous feed slurry of the sulphidic feed in a pressure vessel to form a liquid phase containing free sulphuric acid and aqueous copper sulphate, and to precipitate arsenic as solid iron arsenic compounds. The process includes operating the pressure vessel at a sufficiently low solids content to maintain a free acid level below 30 g/L in the liquid phase, and providing sufficient heat to maintain a temperature in the pressure vessel above 200 °C. Copper metal is recovered from the liquid phase and/or silver may be recovered from the solids by cyanide leaching without the need for a jarosite destruction step.

6. 发明申请

WO2017063076A1 HYDROGEN REDUCTION OF METAL SULPHATE SOLUTIONS FOR DECREASED SILICON IN METAL POWDER 审中-公开
标题翻译：金属粉末中降低硅的金属硫酸盐溶液的氢还原
公开(公告)号：WO2017063076A1
公开(公告)日：2017-04-20
申请号：PCT/CA2016/000261
申请日：2016-10-13
申请人： SHERRITT INTERNATIONAL CORPORATION
发明人： QIN, Fu
IPC分类号： C22B3/44 , B22F9/26 , C01G3/00 , C01G51/00 , C01G53/00 , C22B15/00 , C22B23/00
CPC分类号： B22F9/24 , B22F9/26 , B22F2009/245 , B22F2201/013 , B22F2301/10 , B22F2301/15 , B22F2998/10 , B22F2999/00 , C01G3/02 , C01G3/10 , C01G51/04 , C01G51/10 , C01G53/04 , C01G53/10 , C22B23/0461
摘要： Process to decrease silicon content of metal powder produced by hydrogen reduction from ammoniacal ammonium sulphate solutions containing metal ammine complexes, wherein metal (Me) is Ni, Co, or Cu. The process controls the precipitation of metal hydroxide, which is found to be an effective scavenger for silicon. Silicon is preferentially removed from metal diammine sulphate-containing solutions by precipitating with a small amount of a metal hydroxide, and then separating the silicon-bearing metal hydroxide precipitate from the solution. This solution, from which the silicon impurity has been removed with the metal hydroxide precipitate, can then be reduced in one or more densification cycles with a reducing gas to produce an elemental metal powder having a decreased silicon content. Alternatively, the solution is reduced to produce a low silicon metal powder seed material for the first of the one or more densification cycles.
摘要翻译：从包含金属氨络合物的氨水硫酸铵溶液（其中金属（Me）是Ni，Co或Cu）减少氢气还原产生的金属粉末的硅含量的方法。该过程控制金属氢氧化物的沉淀，这被发现是硅的有效清除剂。通过用少量金属氢氧化物沉淀，然后从溶液中分离出含硅金属氢氧化物沉淀物，硅优先从金属含硫酸二铵溶液中除去。然后可以用一种还原性气体将该硅溶液与金属氢氧化物沉淀物一起除去的溶液在一个或多个致密化循环中还原，以生成具有降低的硅含量的元素金属粉末。或者，该溶液被还原以产生用于一个或多个致密化循环中的第一个的低硅金属粉末种子材料。

7. 发明申请

WO2017004694A1 RECOVERY OF COPPER FROM ARSENIC-CONTAINING PROCESS FEED 审中-公开
标题翻译：从含砷过程饲料中回收铜
公开(公告)号：WO2017004694A1
公开(公告)日：2017-01-12
申请号：PCT/CA2016/000188
申请日：2016-07-05
申请人： SHERRITT INTERNATIONAL CORPORATION
发明人： BUBAN, Kelvin, Richard , COLLINS, Michael, Joseph , HOLLOWAY, Preton, Carl
IPC分类号： C22B3/08 , C01G3/00 , C22B3/22 , C22B15/00
CPC分类号： C22B15/0071 , C22B1/02 , C22B3/08 , C22B3/22 , C22B7/007 , C22B15/0013 , C22B15/0086 , C25C1/12 , Y02P10/216 , Y02P10/234 , Y02P10/236
摘要： Process to recover copper from a process feed including one or more feed components containing a base metal sulphidic feed, iron, copper and arsenic. Process feed and aqueous quench solution are introduced to a pressure oxidative leaching step with a partial pressure of oxygen above 200 kPa to form free sulphuric acid, to solubilize copper and other metal in the feed as aqueous sulphate compounds and to precipitate arsenic as solid iron arsenic compounds. A treated slurry comprising a liquid phase containing sulphuric acid and copper sulphate, and solids containing the iron arsenic compounds is withdrawn and the liquid phase is separated from the solids. To lessen arsenic re-dissolution and to maintain stability of the solid iron arsenic compounds, one or more of temperature, free acid level and residence time of the treated slurry is controlled. Copper metal is recovered from the separated liquid phase.
摘要翻译：从包括一种或多种含有贱金属硫化物进料，铁，铜和砷的进料组分的工艺进料中回收铜的方法。将工艺进料和水性淬火溶液引入到氧分压超过200kPa的压力氧化浸出步骤中以形成游离硫酸，以使硫酸盐化合物溶解在进料中的铜和其它金属，并将砷沉淀为固体铁砷化合物。包括含有硫酸和硫酸铜的液相和含有铁砷化合物的固体的处理浆液被取出，液相与固体分离。为了减少砷的再溶解并保持固体砷化砷的稳定性，控制处理过的浆料的温度，游离酸水平和停留时间中的一种或多种。从分离的液相中回收铜金属。

8. 发明申请

WO2011029172A1 RECOVERING METAL VALUES FROM A METALLIFERROUS MATERIAL USING NEUTRALIZATION AGENT COMPRISING DISSOLVED ALUMINIUM COMPLEX IN SOLUTION 审中-公开
标题翻译：使用包含解决方案中溶解的铝复合物的中和剂从金属材料中回收金属值
公开(公告)号：WO2011029172A1
公开(公告)日：2011-03-17
申请号：PCT/CA2010/000089
申请日：2010-01-21
申请人： SHERRITT INTERNATIONAL CORPORATION , COLLINS, Michael Joseph , HOLLOWAY, Preston Carl , YUZDA, Eugene William
发明人： COLLINS, Michael Joseph , HOLLOWAY, Preston Carl , YUZDA, Eugene William
IPC分类号： C22B3/44 , C22B21/00 , C22B23/00 , C22B3/04
CPC分类号： C22B3/06 , C22B23/043 , C22B23/0461 , Y02P10/234
摘要： There is provided a method of treating a metalliferrous material, comprising: providing a metalliferrous material including at least one target metallic element; solubilising the metalliferrous material so as to effect production of an intermediate product including an operative solution. The operative solution includes a solvent component and a solute component. The solute component includes at least one solute component-based target metallic element and each one of the at least one solute component-based target metallic element corresponds to a one of the at least one target metallic element of the metalliferrous material such that the operative solution includes at least one target metallic element. The operative solution is contacted with an operative reagent in an operative reaction zone so as to effect production of a product mixture including an operative reaction product and hydronium ion, wherein the operative reaction product includes at least one operative reaction product-based target metallic element and each one of the at least one operative reaction product-based target metallic element corresponds to a one of the at least one solute component-based target metallic element of the operative solution. At least one hydronium ion depletion agent is provided in the operative reaction zone such that contacting between any one of the at least one hydronium ion depletion agent and the hydronium ion in the operative reaction zone effects a reactive process which consumes the hydronium ion. Each one of the at least one hydronium ion depletion agent includes at least one dissolved aluminium complex material.
摘要翻译：提供了一种处理金属材料的方法，包括：提供包括至少一种目标金属元素的金属材料; 溶解金属材料以便实现包括操作溶液的中间产物的生产。操作溶液包括溶剂组分和溶质组分。溶质组分包括至少一种基于溶质成分的目标金属元素，并且至少一种基于溶质成分的目标金属元素中的每一个对应于金属材料的至少一种目标金属元素中的一种，使得操作溶液包括至少一个目标金属元素。将手术溶液与手术反应区中的手术试剂接触，以便产生包括手术反应产物和水合氢离子的产物混合物，其中所述手术反应产物包括至少一种基于操作的反应产物的靶金属元素和所述至少一个基于操作的基于反应产物的目标金属元素中的每一个对应于所述操作溶液的所述至少一种基于溶质成分的目标金属元素中的一种。在操作反应区中提供至少一种水合氢离子消耗剂，使得至少一种水合氢离子消耗剂中的任一种与操作反应区中的水合氢离子之间的接触影响消耗水合氢离子的反应过程。所述至少一种水合氢离子消耗剂中的每一种包括至少一种溶解的铝络合物材料。

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