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21. 发明授权

US5544859A Apparatus and method for inhibiting the leaching of lead in water 失效
标题翻译：抑制铅在水中浸出的装置和方法
公开(公告)号：US5544859A
公开(公告)日：1996-08-13
申请号：US253746
申请日：1994-06-03
申请人： Enzo L. Coltrinari , Jerome P. Downey , Wayne C. Hazen , Paul B. Queneau
发明人： Enzo L. Coltrinari , Jerome P. Downey , Wayne C. Hazen , Paul B. Queneau
IPC分类号： C23C18/31 , F16K31/00
CPC分类号： C23C18/31
摘要： A copper alloy plumbing fixture containing interdispersed lead particles coated noncontinuously on a water contact surface to resist the leaching of lead into potable water systems. The leach resistant fixture is prepared by immersing conventional copper alloys in a bismuth nitrate solution, selectively and noncontinuously coating the lead dispersoid particles on the water contact surface with bismuth. Tin may be substituted for bismuth to obtain similar results.
摘要翻译：一种铜合金管道固定装置，其包含不连续涂覆在水接触表面上的分散的铅颗粒，以防止铅浸入饮用水系统中。通过将常规铜合金浸入硝酸铋溶液中，可以选择性且不连续地用铋在水接触表面上涂覆铅分散质颗粒来制备防潮夹具。锡可以代替铋来获得类似的结果。

22. 发明授权

US4399109A Control of silica scaling during acid leaching of lateritic ore 失效
标题翻译：控制红土矿石浸酸过程中二氧化硅结垢
公开(公告)号：US4399109A
公开(公告)日：1983-08-16
申请号：US352537
申请日：1982-02-26
申请人： Ralph K. Iler , Paul B. Queneau , Mark W. Cooperrider
发明人： Ralph K. Iler , Paul B. Queneau , Mark W. Cooperrider
IPC分类号： C22B23/00 , C01G51/10 , C01G53/10 , C01G53/11 , C22B20060101 , C22B3/00 , C23F14/00
CPC分类号： C22B23/043 , Y02P10/212
摘要： A method is provided for inhibiting the formation of silica scale on flash-pot surfaces during the multi-stage flashing of sulfuric acid pressure-leach slurry obtained following the continuous autoclave leaching of nickel lateritic ore at elevated temperature and pressure during which silica is dissolved, wherein the leach slurry is subjected to a high-temperature flash stage such that the slurry at the flash temperature is supersaturated in soluble silica, and wherein the slurry is thereafter subjected to at least one additional flash at an intermediate-temperature flash stage at which silica precipitates and tends to form a scale accompanied by a decrease in said supersaturation. The improvement resides in recycling a substantial portion of the slurry to the intermediate-temperature stage following flashing to the intermediate-temperature flash stage, the portion recycled being sufficient to effect a dilution in silica concentration of the slurry being flashed into the intermediate-temperature flash stage from the high-temperature stage, and continuing the recycling of flashed slurry to the intermediate-temperature flash stage, whereby silica scale formation at the intermediate-temperature flash stage is greatly inhibited. The pH of the recycling stream may be adjusted to further minimize silica deposition.
摘要翻译：提供了一种方法，用于在高温和高压下二氧化硅溶解的镍红土矿石的连续高压釜浸出之后获得的硫酸压力浸出浆液的多级闪蒸期间，抑制闪蒸罐表面上二氧化硅垢的形成，其中浸出浆料经受高温闪蒸阶段，使得闪蒸温度下的浆料在可溶性二氧化硅中过饱和，然后在中间温度闪蒸阶段将浆料经历至少一次另外的闪蒸，其中二氧化硅沉淀并趋于形成伴随着所述过饱和度降低的氧化皮。改进之处在于将大部分浆料循环回到中间温度闪蒸阶段之后的中间温度阶段，再循环的部分足以使浆料的二氧化硅浓度稀释到闪蒸到中间温度闪蒸从高温阶段开始，持续将闪蒸浆料回收到中温闪蒸阶段，从而大大抑制了中温闪蒸阶段的二氧化硅垢形成。可以调节再循环流的pH以进一步最小化二氧化硅沉积。

23. 发明授权

US3959097A Selenium rejection during acid leaching of matte 失效
标题翻译：酸洗过程中的硒排除
公开(公告)号：US3959097A
公开(公告)日：1976-05-25
申请号：US582101
申请日：1975-05-30
申请人： Paul B. Queneau , Raymond D. Symens , Eddie C. Chou
发明人： Paul B. Queneau , Raymond D. Symens , Eddie C. Chou
IPC分类号： C22B3/00 , C01B19/00 , C22B3/04 , C22B3/44 , C22B15/00 , C25C1/08 , C25C1/12 , C25C1/22
CPC分类号： C22B3/44 , C22B15/0089 , C22B23/0461 , Y02P10/234 , Y02P10/236
摘要： A method is provided for removing trace amounts of selenium from acid leach solutions containing over 2 ppm of total selenium comprising either Se(IV) and/or Se(VI) obtained during the pressure oxidation leaching of metal sulfide concentrate comprising forming a slurry of said acid solution with comminuted metal sulfide concentrate, said slurry containing at least two grams of a metal ion as metal hydroxide per liter of solution and then subjecting said slurry to agitation at a temperature of at least about 185.degree.C at a pressure of a least about 160 psig, whereby to reduce the total selenium content of said solution to less than about 2 ppm.
摘要翻译：提供了一种用于从含有超过2ppm总硒含量的硫酸浸出溶液中除去微量硒的方法，所述硒总量包含形成所述硫化物的浆料的金属硫化物浓缩物期间获得的Se（IV）和/或Se（VI）粉碎的金属硫化物浓缩物的酸溶液，所述浆料含有至少两克作为金属氢氧化物的金属离子每升溶液，然后使所述浆料在至少约185℃的温度下在至少约 160psig，由此将所述溶液的总硒含量降低至小于约2ppm。

24. 发明授权

US06818191B2 Autoclave control mechanisms for pressure oxidation of molybdenite 失效
标题翻译：辉钼矿压力氧化高压灭菌器控制机理
公开(公告)号：US06818191B2
公开(公告)日：2004-11-16
申请号：US09851920
申请日：2001-05-09
申请人： John E. Litz , Paul B. Queneau , Rong-Chien Wu
发明人： John E. Litz , Paul B. Queneau , Rong-Chien Wu
IPC分类号： C22B300
CPC分类号： C22B34/34 , C01G39/02 , C22B3/02 , Y02P10/234
摘要： The process chemistry during the oxidation of molybdenite concentrates in an oxygen pressure leach can be controlled by regulating the amount of ferric iron and excess sulfuric acid recycled as autoclave discharge slurry or filtrate to the autoclave feed. A computer model capable of predicting the concentration of soluble molybdenum in the autoclave discharge and based on the concentrate and recycle analyses was developed.
摘要翻译：在氧压力浸出中辉钼矿浓缩氧化过程中的过程化学性质可以通过调节作为高压釜排出浆液或滤液再循环到高压釜进料中的三价铁和过量硫酸的量来控制。开发了能够预测高压釜排出物中可溶性钼的浓度并基于浓缩物和再循环分析的计算机模型。

25. 发明授权

US4044096A Sulfuric acid leaching of nickeliferous laterite 失效
标题翻译：含镍红土的硫酸浸出
公开(公告)号：US4044096A
公开(公告)日：1977-08-23
申请号：US639712
申请日：1975-12-11
申请人： Paul B. Queneau , Eddie C. Chou
发明人： Paul B. Queneau , Eddie C. Chou
IPC分类号： C01G53/10 , C22B23/00
CPC分类号： C22B23/005 , C22B23/043
摘要： The leaching efficiency of nickeliferous lateritic ore is optimized by scalping the ore to remove a coarse low-nickel fraction and provide a fine nickel-rich fraction which is then high pressure leached in a sulfuric acid solution by controlling the parameters temperature, pulp density, the rate of acid addition, leaching time, agitation rate, etc., whereby a pregnant solution is obtained with the nickel to (Fe+Al+Cr) ratio exceeding about 2.
摘要翻译：镍矿红土矿石的浸出效率通过对矿石进行抛光来优化，以除去粗的低镍馏分，并提供细的富镍馏分，然后通过控制参数温度，纸浆密度，硫酸溶液在硫酸溶液中高压浸出酸添加速率，浸出时间，搅拌速度等，从而得到镍至（Fe + Al + Cr）比超过约2的怀孕溶液。

26. 发明授权

US3991159A High temperature neutralization of laterite leach slurry 失效
标题翻译：红土浸出液高温中和
公开(公告)号：US3991159A
公开(公告)日：1976-11-09
申请号：US539616
申请日：1975-01-09
申请人： Paul B. Queneau , Eddie C. Chou
发明人： Paul B. Queneau , Eddie C. Chou
IPC分类号： C22B23/00 , C01B20060101 , C01G51/10 , C01G53/10 , C22B20060101 , C22B3/00 , C22B23/02
CPC分类号： C22B23/043 , C22B23/04
摘要： The pregnant solution obtained from high pressure and high temperature leaching of nickel-cobalt bearing low magnesium oxidic ores is neutralized at high temperature and pressure by coordinating the leaching of the low magnesium ores with the leaching of nickel-cobalt bearing high magnesium ores, the leach slurry from said low magnesium ore being neutralized by mixing it with said high magnesium ore which is simultaneously leached with said solution to produce a final pregnant solution from which metal values are subsequently recovered.
摘要翻译：从高压高温浸出镍 - 钴低镁氧化矿石中获得的怀孕溶液在高温高压下中和，通过配合低镁矿石的浸出和含镍高钴矿石的浸出，浸出将来自所述低镁矿石的浆料通过与所述高镁矿石混合而中和，所述高镁矿石与所述溶液同时浸出以产生最后的怀孕溶液，随后从其回收金属值。

27. 发明授权

US4183792A Method and cell for electrolytic oxidation of Ni(OH).sub.2 with stationary bed electrode 失效
标题翻译：用固定床电极电解氧化Ni（OH）2的方法和电池
公开(公告)号：US4183792A
公开(公告)日：1980-01-15
申请号：US12775
申请日：1979-02-16
申请人： Willam G. Sherwood , Paul B. Queneau
发明人： Willam G. Sherwood , Paul B. Queneau
IPC分类号： C25B1/00 , C25B9/16 , C25B11/04
CPC分类号： C25B1/00 , C25B9/168
摘要： A method and cell are provided for anodically oxidizing a metal hydroxide slurry from a state of lower valence to a state of higher valence, the cell comprising an anode in the form of a bed of nickel pellets and a plurality of parallel-connected cathodes extending into said bed of pellets, each of the cathodes being covered by a perforated layer of insulating material to inhibit electrical shorting of said cathodes with said bed of nickel pellets.
摘要翻译：提供了一种方法和电池，用于将金属氢氧化物浆料从低价态状态阳极氧化至较高价态，所述电池包括镍丸粒床形式的阳极和多个平行连接的阴极，所述沉积床，每个阴极被绝缘材料穿孔层覆盖，以防止所述阴极与所述镍粒子床的电短路。

28. 发明授权

US4034059A Separation of cobalt from nickel by ozonation in the presence of ammonium salts 失效
标题翻译：在铵盐存在下通过臭氧分离钴与镍
公开(公告)号：US4034059A
公开(公告)日：1977-07-05
申请号：US706817
申请日：1976-07-19
申请人： Franklin F. Clark , Cvetko B. Nikolic , Paul B. Queneau
发明人： Franklin F. Clark , Cvetko B. Nikolic , Paul B. Queneau
IPC分类号： C22B23/02 , C01G51/00 , C01G53/00 , C01G51/04
CPC分类号： C01G53/00 , C01G51/00 , C22B23/0476 , C01P2006/80
摘要： A method is provided for separating cobalt from a nickel solution containing cobalt in the cobaltous state and an ammonium salt comprising subjecting said solution containing at least 0.2 grams per liter of ammonium ion to ozonation while maintaining the pH thereof from about 4.5 to 6, until said cobalt has been oxidized to the cobaltic state and simultaneously precipitating said cobalt in the cobaltic state at a temperature ranging from about 10.degree. to 90.degree. C.
摘要翻译：提供了一种用于从含钴钴的钴的镍溶液中分离钴的方法和一种铵盐，其包括将含有至少0.2克/升铵离子的所述溶液经受臭氧化，同时保持其pH为约4.5至6，直到所述钴已经被氧化成钴的状态，同时在约10〜90℃的温度下析出钴的钴。

29. 发明授权

US3962051A Atmospheric leaching of matte containing iron 失效
标题翻译：含铁的大气浸出
公开(公告)号：US3962051A
公开(公告)日：1976-06-08
申请号：US536383
申请日：1974-12-26
申请人： Raymond D. Symens , Paul B. Queneau , Antonio E. Blandon
发明人： Raymond D. Symens , Paul B. Queneau , Antonio E. Blandon
IPC分类号： C22B23/00 , C01G53/00 , C01G53/10 , C22B3/00 , C22B15/00 , C25C1/12
CPC分类号： C22B15/0006 , C22B15/0071 , C22B15/0093 , C22B23/043 , Y02P10/236
摘要： A method is provided for leaching comminuted nickeliferous sulfide matte containing by weight about 20% to 75% nickel, about 5% to 50% copper, non-stoichiometric sulfur in the range of over 4% to about 20%, over 0.5% to about 15 or 20% iron, the sum of the nickel, copper and sulfur contents being at least about 80% of the matte composition, with the balance gangue or slag and incidental impurities.The matte, because of the iron content, is first granulated by quenching molten matte from a temperature at least about 10.degree.C above its solidus-liquidus temperature but below its boiling point, following which the matte is comminuted and subjected to atmospheric leaching to dissolve nickel selectively therefrom using a spent copper electrolyte solution containing sulfuric acid having a pH ranging up to about 2 while aerating said solution to cause the pH to rise to above 5 and effect substantial precipitation of copper and iron. Preferably, a two-stage atmospheric leaching is employed, the first stage in which the solution is aerated until the solution reaches a pH level of about 3.5 to 4.5 and a second stage atmospheric leaching step in which the aeration is replaced with a stronger oxidant, such as oxygen, in order to speed up the atmospheric leaching of the matte and to complete further said atmospheric leaching until the aqueous copper and iron are each reduced to less than 20 ppm as evidenced by a rise in pH to over about 5.

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