公开(公告)号：US4734270A

公开(公告)日：1988-03-29

申请号：US850677

申请日：1986-04-11

Applicant: Freddie J. Touro ,  Delbert A. Lipps

Inventor： Freddie J. Touro ,  Delbert A. Lipps

IPC: C01G7/00 ,  C01G13/00 ,  C22B43/00

CPC classification number: C01G13/00 ,  C22B3/24 ,  C22B43/00 ,  Y02P10/234

Abstract: In this invention sulfide compounds are added to mercury and precious metal-containing carbonaceous ore slurries prior to the slurry being processed by a carbon-in-pulp system. The sulfide compound inhibits the mercury from being adsorbed onto the activated carbon by reacting with the mercury to form mercuric sulfide and by inhibiting the dissolution of mercury from the ore. The mercuric sulfide precipitate displays no activity toward the activated carbon. The sulfiding procedure is performed with a sufficient amount of sulfide-providing compound to provide at least about 30 times the stoichiometric amount of sulfide ions required to react with the mercury in the ore slurry.

Abstract translation: 在本发明中，在浆料被纸浆系统加工之前，将硫化物加入汞和含贵金属的含碳矿石浆料中。 硫化物化合物通过与汞反应而抑制汞被吸附在活性炭上，形成硫化汞并通过抑制矿石中汞的溶解。 硫化汞沉淀物对活性炭没有显示出活性。 硫化过程用足够量的提供硫化物的化合物进行，以提供与矿石浆料中的汞反应所需的化学计量量的化学计量量的至少约30倍。

公开(公告)号：US4726939A

公开(公告)日：1988-02-23

申请号：US812919

申请日：1985-12-23

Applicant: Freddie J. Touro

Inventor： Freddie J. Touro

IPC: C01C3/08 ,  C01G13/00 ,  C22B11/08 ,  C22B43/00 ,  C10G13/00

CPC classification number: C01C3/08 ,  C01G13/00 ,  C22B11/08 ,  C22B43/00

Abstract: This invention is a process for removing mercury from the desorption or cyanide liquor of a precious metal recovery, cyanide leach system. A sulfide ion-producing compound and a flocculating agent are added to the desorption liquor to form and flocculate mercuric sulfide. The desorption liquor typically has a cyanide concentration of between about 0.5 percent and about 2.0 percent by weight. The flocculated mercuric sulfide is separated from a substantially mercury-free precious metal-containing, cyanide solution.

Abstract translation: 本发明是从贵金属回收，氰化物浸出系统的解吸或氰化液中除去汞的方法。 将硫化物离子产生化合物和絮凝剂加入到解吸液中以形成和絮凝硫化汞。 解吸液通常具有约0.5重量％至约2.0重量％之间的氰化物浓度。 将絮凝的硫化汞与基本上不含汞的含贵金属氰化物溶液分离。

公开(公告)号：US5236676A

公开(公告)日：1993-08-17

申请号：US897000

申请日：1992-06-11

Applicant: Freddie J. Touro ,  Roy A. Pickren

Inventor： Freddie J. Touro ,  Roy A. Pickren

IPC: C22B3/00 ,  C22B11/06 ,  C22B11/08

CPC classification number: C22B11/06 ,  C22B11/08 ,  C22B3/00 ,  Y02P10/234

Abstract: A method and apparatus are described for recovering gold from aqueous slurries of refractory gold ores containing sulfidic and/or carbonaceous matter. The method entails pretreating an ore slurry with chlorine in a multi-compartment autoclave operated at an elevated pressure. The chlorine used in this pressure chlorination pretreatment can be in either the gaseous or liquid state. Following the removal of residual chlorine from the pretreated ore slurry, said slurry is transferred to a conventional cyanide leach/carbon adsorption circuit to recover the gold values.

Abstract translation: 描述了用于从含有硫化物和/或碳质物质的难熔金矿石的水性浆料中回收金的方法和装置。 该方法需要在高压釜中操作的多室高压釜中用氯预处理矿浆。 该压力氯化预处理中使用的氯可以是气态或液态。 在从预处理的矿浆中除去残余氯后，将所述浆料转移到常规的氰化物浸出/碳吸附回路中以回收金值。

公开(公告)号：US5147617A

公开(公告)日：1992-09-15

申请号：US703853

申请日：1991-05-21

Applicant: Freddie J. Touro ,  Tadeusz K. Wiewiorowski

Inventor： Freddie J. Touro ,  Tadeusz K. Wiewiorowski

IPC: C01G7/00

CPC classification number: C01G7/003 ,  C22B11/04 ,  C22B3/24 ,  C22B3/42 ,  Y02P10/234

Abstract: A process for recovering gold from gold-bearing ores includes the steps of forming a slurry of ground ore and treating the ore with an oxidizing and complexing agent such as hydrogen sulfide or a sulfide salt. A chelating agent, SO.sub.2, air, and an anion exchange resin are added to the slurry to subject the ore to a simultaneous sulfurous acid leaching and anion exchange resin adsorption step in the presence of dissolved oxygen. The gold transfers to the resin which is then removed from the slurry. The gold is then separted from the resin by chemical stripping. Alternately, the ground ore is blended with an oxidizing agent such as calcium hypochlorite and then with a gold-complexing agent. The ore blend is slurried in water, with the addition of a chelating agent, SO.sub.2, air and an anion exchange resin to effect the leaching and adsorption of gold values.

Abstract translation: 从含金矿石中回收金的方法包括形成研磨矿石浆料并用氧化络合剂如硫化氢或硫化物盐处理矿石的步骤。 向该浆料中加入螯合剂SO2，空气和阴离子交换树脂，使矿石在溶解氧的存在下同时进行亚硫酸浸出和阴离子交换树脂吸附步骤。 金转移到树脂上，然后从浆料中除去。 然后金子通过化学剥离从树脂中分离出来。 或者，将研磨矿石与氧化剂如次氯酸钙混合，然后与金络合剂混合。 矿石混合物在水中浆化，加入螯合剂SO2，空气和阴离子交换树脂，以实现金值的浸出和吸附。

公开(公告)号：US3961908A

公开(公告)日：1976-06-08

申请号：US446412

申请日：1974-02-27

Applicant: Freddie J. Touro

Inventor： Freddie J. Touro

IPC: C22B23/00 ,  C22B3/00 ,  C22B15/00 ,  C22B23/02 ,  B01J3/04 ,  C01G3/02

CPC classification number: C22B3/00 ,  Y02P10/234

Abstract: A method and apparatus for high temperature-high pressure acid leaching of sulfide ores is described. The apparatus includes an autoclave having a plurality of pressurized compartments and a water removing-heat removing condenser. Means are described for the introduction of a neutralizing agent directly into the autoclave in order to maintain the acidity of the slurry at a level where substantially all of the iron present in the slurry will form an insoluble iron oxide precipitate. Means are described for removing the gaseous products resulting from the introduction of the neutralizing agent while avoiding contamination thereby of a substantial portion of the oxygen.

Abstract translation: 描述了用于硫化矿石的高温高压酸浸的方法和装置。 该装置包括具有多个加压室和除水除热冷凝器的高压釜。 描述了用于将中和剂直接引入高压釜中的方法，以便将浆料的酸度保持在基本上所有存在于浆料中的铁将形成不溶性氧化铁沉淀物的水平。 描述了用于去除由引入中和剂引起的气态产物的装置，同时避免了大部分氧的污染。

公开(公告)号：US5147618A

公开(公告)日：1992-09-15

申请号：US703843

申请日：1991-05-21

Applicant: Freddie J. Touro ,  Tadeusz K. Wiewiorowski

Inventor： Freddie J. Touro ,  Tadeusz K. Wiewiorowski

IPC: C01G7/00

CPC classification number: C01G7/003 ,  C22B11/04 ,  C22B3/24 ,  C22B3/42 ,  Y02P10/234

Abstract: A process for recovering gold from refractory gold-bearing ores uses sulfurous acid as the leaching agent to form a gold-sulfite complex. The ore is ground, slurried blended with a chelating agent and then subjected to a simultaneous dissolved SO.sub.2 leaching and anion exchange resin adsorption step in the presence of dissolved oxygen. The gold transfers to the resin which is later separated from the resin by chemical stripping.

Abstract translation: 从难熔含金矿石中回收金的方法使用亚硫酸作为浸出剂形成亚硫酸亚金属络合物。 将矿石研磨，与螯合剂混合，然后在溶解氧的存在下进行同时溶解的SO 2浸出和阴离子交换树脂吸附步骤。 金转移到树脂中，后者通过化学剥离而与树脂分离。

公开(公告)号：US3962402A

公开(公告)日：1976-06-08

申请号：US446315

申请日：1974-02-27

Applicant: Freddie J. Touro

Inventor： Freddie J. Touro

IPC: C01G3/10 ,  C01G49/06 ,  C22B15/00

CPC classification number: C22B15/0089 ,  C01G3/10 ,  C01G49/06 ,  C22B15/0071 ,  C22B15/0086 ,  Y02P10/236

Abstract: A method is described for the oxidation-leaching of chalcopyrite concentrates at high temperatures and pressures for the extraction of copper values as copper sulfate in which temperatures are maintained between about 425.degree. and 450.degree.F, oxygen partial pressures of between about 50 and 200 psi are provided, and levels of acidity are permitted to increase above about 50 grams of H.sub.2 SO.sub.4 per liter in order to obtain maximum rates of extraction of virtually all of the copper. Thereafter, while maintaining the temperature and pressure at elevated levels, the acidity of the slurry is reduced to between about 10 and 40 grams of H.sub.2 SO.sub.4 per liter in order to obtain reduction of dissolved iron to optimal levels. The resulting slurry is then cooled and further processed for the production of a very pure copper sulfate solution.

Abstract translation: 描述了一种用于在高温和高压下氧化浸出黄铜矿浓缩物以提取铜值的方法，所述铜值为硫酸铜，其中温度保持在约425°至450°F之间，氧分压为约50至200psi ，并且允许酸度水平增加至高于约50克H 2 SO 4 /升，以便获得几乎所有铜的最大提取速率。 此后，在将温度和压力保持在升高水平的同时，浆料的酸度降低至每升约10至40克H 2 SO 4，以便将溶解的铁降低至最佳水平。 然后将所得浆液冷却并进一步处理以生产非常纯的硫酸铜溶液。

公开(公告)号：US4605537A

公开(公告)日：1986-08-12

申请号：US651087

申请日：1984-09-17

Applicant: Freddie J. Touro

Inventor： Freddie J. Touro

IPC: B01D11/00 ,  C22B11/08

CPC classification number: C22B11/08 ,  C22B11/04

Abstract: Residual hypochlorite contained in chlorinated slurries of either carbonaceous gold-containing ores or mixtures of carbonaceous and oxide gold-containing ores are reduced by reaction with sulfide ion-providing chemical compounds preferably sodium hydrosulfide, sodium sulfide or hydrogen sulfide. The hypochlorite "kill" step enables subsequent cyanide leach operations to be conducted more efficiently.

Abstract translation: 通过与硫化物离子提供的化合物，优选硫氢化钠，硫化钠或硫化氢反应，还原含碳含金矿石或含碳和氧化物含金矿石的混合物的氯化浆料中残留的次氯酸盐。 次氯酸盐“杀死”步骤使得能够更有效地进行后续的氰化物浸出操作。