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公开(公告)号：US4382082A
公开(公告)日：1983-05-03
申请号：US333245
申请日：1981-12-21
IPC分类号： C01G51/00
CPC分类号： C01G51/003 , C22B3/24 , Y02P10/234
摘要： The recovery of metal values such as cobalt may be improved in a hydrometallurgical recovery of metal values from metal-bearing sources such as ores and the like. The hydrometallurgical recovery process involves subjecting a metal-bearing source to a reductive roast in a reducing atmosphere after having treated said source with at least one additive. Thereafter, the reduced metal-bearing source is cooled and extracted by a leaching operation such as treatment with an ammoniacal ammonium salt solution. The leaching step is followed by a separation of various metal values by adding a solid adsorbent to the leach solution whereby selective metal ions are adsorbed thereon. The improvement of the process involves subjecting the solid adsorbent to a stripping operation with a stripping agent such as steam or a gas at an elevated temperature prior to recovery of the adsorbed metal ions from the solid adsorbent by conventional means such as acid-stripping.
摘要翻译： 在诸如矿石等金属来源的金属值的湿法冶金回收中，可以提高诸如钴的金属值的回收。 湿法冶金回收方法包括在用至少一种添加剂处理所述源之后，使含金属源在还原气氛中进行还原性焙烧。 此后，将还原的含金属源冷却并通过浸出操作进行提取，例如用氨基铵盐溶液处理。 浸出步骤之后，通过向浸出溶液中加入固体吸附剂，从而吸附各种金属离子，从而吸附各种金属离子。 该方法的改进包括在通过常规方法（例如酸剥离）从固体吸附剂回收吸附的金属离子之前，使固体吸附剂在汽提或升高的气体下进行汽提操作。
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2.发明授权
公开(公告)号：US4312841A
公开(公告)日：1982-01-26
申请号：US162970
申请日：1980-06-25
CPC分类号： C22B23/005 , C22B23/0446
摘要： The present process involves an improvement in the hydrometallurgical recovery of metal values from metal bearing sources such as ores and the like. The metal values are obtained by subjecting a metal bearing source to a reductive roast at an elevated temperature followed by cooling the reduced metal bearing source, extracting the cooled source and recovering the resultant metal values. An improvement in this process is effected by adding a compound containing a metal of Group IA or IIA of the Periodic Table to the source before subjecting the source to the reductive roast. Following the roast the ore is quenched in an aqueous solution and thereafter subjected to an extraction step.
摘要翻译： 本发明的方法涉及从诸如矿石等金属轴承来源改进金属值的湿法冶金回收。 金属值是通过使金属轴承源在升高的温度下进行还原焙烧，然后冷却还原金属轴承源，提取冷却的源并回收所得到的金属值而获得的。 该方法的改进通过在将来源进行还原性焙烤之前将含有元素周期表IA或IIA族金属的化合物加入到源中来实现。 在焙烧之后，将矿石在水溶液中骤冷，然后进行萃取步骤。
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公开(公告)号：US4269809A
公开(公告)日：1981-05-26
申请号：US105341
申请日：1979-12-19
IPC分类号： C01G23/00 , C22B3/38 , C22B34/12 , C01G23/053
CPC分类号： C22B34/1259 , C01G23/001 , C22B3/0068 , Y02P10/234 , Y10S423/14
摘要： Titanium metal values may be recovered from a titanium bearing source such as an ilmenite ore by subjecting the source to a reductive roast and leaching the reduced source with a halogen containing compound such as hydrochloric acid. The soluble titanium halide is then extracted from the leach liquor by utilizing an organophosphoric acid such as mono-2-ethylhexylphosphoric acid. The extracted titanium may then be stripped from the loaded organic acid solution by treating the solution with a mixture of hydrogen peroxide and an inorganic acid. Thereafter the desired titanium metal value may be recovered from the acid solution by any means known in the art such as hydrolysis.
摘要翻译： 钛金属值可以通过使来源进行还原性焙烧并用含卤素化合物如盐酸浸出还原源从钛轴承来源例如钛铁矿中回收。 然后通过利用有机磷酸例如单-2-乙基己基磷酸从浸出液中提取可溶性卤化钛。 然后可以用过氧化氢和无机酸的混合物处理溶液，从提取的钛中除去负载的有机酸溶液。 此后，可以通过本领域已知的任何方法从水溶液中回收所需的钛金属值，例如水解。
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公开(公告)号：US4175952A
公开(公告)日：1979-11-27
申请号：US925902
申请日：1978-07-19
申请人： William K. Tolley
发明人： William K. Tolley
CPC分类号： C22B34/1245 , C21B13/006 , C21B15/006 , C22B34/1218 , Y02P10/136 , Y02P10/23
摘要： Iron metal values and titanium metal values may be recovered from iron and titanium bearing sources such as an ilmenite ore by subjecting the source to a reductive roast after crushing the source to a desired particle size. The reduced source is then leached by treatment with a halogen-containing compound to form soluble titanium halides and iron halides. Thereafter the soluble titanium halide is precipitated by treatment with iron oxides such as ferric oxide and after separation from the soluble iron halides is recovered as titanium dioxide. The soluble iron halides are then crystallized by reducing the temperature of the solution and one portion of the crystals are subjected to a reduction step to form metallic iron. The other portion of the iron halide crystals is oxidized to form ferric oxide which is used to precipitate the titanium compound.
摘要翻译： 铁矿金属值和钛金属值可以从铁和钛的轴承来源例如钛铁矿矿石中回收，通过在将源粉碎成所需的粒度之后对其进行还原焙烧。 然后通过用含卤素的化合物处理来浸提还原的源，以形成可溶性的卤化钛和卤化铁。 此后，可溶性卤化钛通过用铁氧化物如氧化铁处理而沉淀，并且与可溶性卤化铁分离后作为二氧化钛回收。 然后通过降低溶液的温度使可溶性卤化铁结晶，并将一部分晶体进行还原步骤以形成金属铁。 卤化锌晶体的另一部分被氧化形成用于沉淀钛化合物的氧化铁。
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公开(公告)号：US4237104A
公开(公告)日：1980-12-02
申请号：US34806
申请日：1979-04-30
申请人： Peter Urban , John C. Stauter , William K. Tolley
发明人： Peter Urban , John C. Stauter , William K. Tolley
CPC分类号： B01D53/501
摘要： A process for removing, by absorption, sulfur dioxide from a gaseous mixture such as a flue gas by scrubbing said mixture with an aqueous scrubbing liquor to which a solution of an alkaline reagent such as sodium carbonate is added to maintain alkalinity of the scrubbing liquor. The solution also has dissolved in it a quantity of silica which tends to precipitate when solution is added to the scrubbing liquor. The silica precipitated in this manner tends to form extremely hard solid deposits in the scrubbing device and associated equipment. If a water soluble acid salt such as ferrous or ferric sulfate is added to the alkaline reagent solution prior to its use in the process, the precipitate formed has a minimum deleterious effect.
摘要翻译： 通过用加入碱性试剂如碳酸钠的溶液的水性洗涤液洗涤所述混合物来除去气态混合物如烟道气中的二氧化硫的方法，以保持洗涤液的碱度。 该溶液还溶解有一定量的二氧化硅，当将溶液加入洗涤液中时，其倾向于沉淀。 以这种方式沉淀的二氧化硅倾向于在洗涤装置和相关设备中形成非常硬的固体沉积物。 如果将水溶性酸盐如亚铁或硫酸铁在使用之前加入到碱性试剂溶液中，则形成的沉淀物具有最小的有害作用。
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公开(公告)号：US4202863A
公开(公告)日：1980-05-13
申请号：US963870
申请日：1978-11-27
申请人： William K. Tolley
发明人： William K. Tolley
CPC分类号： C22B34/1213
摘要： In a process for recovering titanium metal values from a titanium bearing source which also contains iron, the source is subjected to a reductive roast followed by a leach of the reduced source with hydrogen chloride. The suppression of the dissolution of titanium during the leaching step of the process will be effected by the addition of a phosphoric acid to the leaching solution.
摘要翻译： 在还含有铁的钛轴承源中回收钛金属值的方法中，将来源进行还原焙烧，随后用氯化氢浸出还原的源。 在该过程的浸出步骤期间钛的溶解的抑制将通过向浸出溶液中加入磷酸来实现。
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公开(公告)号：US4175110A
公开(公告)日：1979-11-20
申请号：US935812
申请日：1978-08-22
申请人： William K. Tolley
发明人： William K. Tolley
CPC分类号： C22B34/1259 , C22B34/1204 , C22B34/1245
摘要： Titanium metal values are recovered from a titanium bearing source such as an ilmenite ore by subjecting the source to a reductive roast and leaching the reduced source with a halogen-containing compound. Following this the soluble metal halides are separated from gangue and the pregnant leach liquor if treated with an iron oxide such as ferric oxide to precipitate titanium dioxide. The nucleation of the titanium dioxide may be improved by using a large excess of ferric oxide in the precipitation step. The improvement will thus result in an increased yield of the desired titanium dioxide.
摘要翻译： 通过使源进行还原性焙烧并用含卤素化合物浸出还原源，从钛轴承来源例如钛铁矿中回收钛金属值。 此后，如果用氧化铁如氧化铁处理可溶性金属卤化物与脉石和怀孕浸出液分离以沉淀二氧化钛。 可以通过在沉淀步骤中使用大量过量的氧化铁来改善二氧化钛的成核。 因此，改善将导致所需二氧化钛的产量增加。
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公开(公告)号：US4174963A
公开(公告)日：1979-11-20
申请号：US929605
申请日：1978-07-31
申请人： William K. Tolley
发明人： William K. Tolley
CPC分类号： C21B15/006 , C21B13/006 , C22B34/1218 , C22B34/1245 , Y02P10/136 , Y02P10/23
摘要： Titanium metal values may be recovered from titanium and iron bearing sources such as an ilmenite ore by subjecting the source to an oxidation treatment and a reductive roast after having crushed the source to a desired particle size. The reduced source is then leached by treatment with a halogen-containing compound to form soluble titanium halides and iron halides. Thereafter the soluble titanium halide is precipitated as titanium dioxide by treatment with an iron oxide such as ferric oxide and recovered. The amount of titanium dioxide which is recovered is determined by the amount of reductant utilized in the reductive roast.
摘要翻译： 钛金属值可以通过在将源压碎成所需粒度之后对源进行氧化处理和还原性焙烧，从钛和铁的来源例如钛铁矿中回收。 然后通过用含卤素的化合物处理来浸提还原的源，以形成可溶性的卤化钛和卤化铁。 此后，通过用氧化铁如氧化铁处理回收可溶性卤化钛作为二氧化钛沉淀。 回收的二氧化钛的量由还原性焙烤中使用的还原剂的量来确定。
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公开(公告)号：US4416693A
公开(公告)日：1983-11-22
申请号：US331846
申请日：1981-12-17
申请人： William K. Tolley
发明人： William K. Tolley
IPC分类号： C01G23/047 , C21B13/00 , C22B34/12 , C21B15/00 , C01G23/04
CPC分类号： C01G23/047 , C21B13/006 , C22B34/1218 , C22B34/1245 , Y02P10/136 , Y02P10/23
摘要： Titanium metal values may be recovered from a metal-bearing source containing titanium and iron by subjecting the source to an oxidation treatment and a reductive roast. After having crushed the source to a desired particle size, the reduced source is then leached by treatment with a halogen-containing compound to form soluble halides, following which the soluble titanium halide is precipitated as titanium dioxide by treatment with an iron oxide such as ferric oxide and recovered. The amount of titanium dioxide which is recovered may be optimized by utilizing a reductant such as hydrogen or carbon monoxide in an amount in the range of from about 1.5 to about 4.5 times the stoichiometric amount required to reduce the iron oxide to metallic oxide during the reductive roast.
摘要翻译： 可以通过对源进行氧化处理和还原焙烧从含有钛和铁的含金属源中回收钛金属值。 在将源粉碎成所需的粒度后，通过用含卤素的化合物处理来浸出还原的物质以形成可溶性卤化物，然后通过用氧化铁如三价铁处理将可溶性卤化钛沉淀为二氧化钛 氧化并回收。 回收的二氧化钛的量可以通过使用还原剂例如氢或一氧化碳，其量为在还原期间将氧化铁还原为金属氧化物所需的化学计量量的约1.5至约4.5倍的量来优化 烤。
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公开(公告)号：US4178176A
公开(公告)日：1979-12-11
申请号：US925901
申请日：1978-07-19
申请人： William K. Tolley
发明人： William K. Tolley
CPC分类号： C21B13/006 , C21B15/006 , C22B34/1245 , Y02P10/136 , Y02P10/212
摘要： Iron metal values and titanium metal values may be recovered from iron and titanium bearing sources such as ilmenite by subjecting the source to a reductive roast followed by leaching of the reduced source with a halogen-containing compound. Thereafter, the iron halide is crystallized and separated from the soluble titanium halides. One portion of the iron halides is subjected to a reducing step to form metallic iron while a second portion is oxidized, the iron oxides being used to precipitate the titanium as titanium dioxide. The titanium dioxide may then be separated and recovered while the liquid portion is recycled to the leaching zone.
摘要翻译： 通过使源进行还原性焙烧，然后用含卤素化合物浸出还原源，可以从铁和钛等来源的钛铁矿中回收铁金属值和钛金属值。 此后，将卤化铁结晶并与可溶性卤化钛分离。 一部分铁卤化物经受还原步骤以形成金属铁，而第二部分被氧化，铁氧化物用于将钛沉淀为二氧化钛。 然后可以将二氧化钛分离和回收，同时液体部分被再循环到浸出区。
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