公开(公告)号：US09981295B2

公开(公告)日：2018-05-29

申请号：US15216048

申请日：2016-07-21

Applicant: DUNDEE SUSTAINABLE TECHNOLOGIES INC.

Inventor： Jean-Marc Lalancette ,  David Lemieux ,  Khalil Nasrallah ,  Gabriel Garcia Curiel ,  Romain Barbaroux

IPC: B09B3/00 ,  C22B1/11 ,  C03C3/087

CPC classification number: B09B3/005 ,  B09B3/0025 ,  B09B3/0041 ,  C03C1/002 ,  C03C3/062 ,  C03C3/078 ,  C03C3/087 ,  C22B1/11 ,  C22B30/02 ,  C22B30/04

Abstract: A method for vitrification of arsenic and antimony, comprising substituting oxygen to sulfur on thiosalts, incorporating resulting sodium arsenate and sodium antimonate into a sodium silicate glass-forming mixture and vitrifying the sodium silicate glass-forming mixture into a resulting glass sequestering the arsenic and antimony.

公开(公告)号：US20150267276A1

公开(公告)日：2015-09-24

申请号：US14678143

申请日：2015-04-03

Applicant: Uniwersytet Warszawski

Inventor： Lukasz Drewniak ,  Aleksandra Sklodowska ,  Monika Radlinska ,  Robert Stasiuk

IPC: C22B3/18 ,  C12N9/02 ,  C22B1/11 ,  C12R1/01

CPC classification number: C22B3/18 ,  C02F3/28 ,  C02F3/34 ,  C02F3/342 ,  C02F2101/103 ,  C07K14/195 ,  C12N9/0004 ,  C12N9/14 ,  C12P3/00 ,  C12R1/01 ,  C12Y120/04001 ,  C12Y120/99001 ,  C12Y306/03016 ,  C22B1/11 ,  Y02P20/52

Abstract: The object of the invention is the plasmid pSheB, particularly a plasmid which may comprise a fragment of pSheB including the arr module and functional derivatives thereof, and strains containing such a plasmid, preferably the Shewanella sp. strain, deposited as KKP 2045p, which are capable of removing arsenic by dissolution of minerals and reduction of arsenates to arsenites. The object of the invention is also the method and the use of such bacterial strains or compositions which may comprise them, for the selective removal of arsenic from mineral resources, raw materials industry waste or soil.

Abstract translation: 本发明的目的是质粒pSheB，特别是可以包含包含arr组件和其功能衍生物的pSheB片段的质粒，以及含有这样的质粒，优选Shewanella sp。 菌株，作为KKP 2045p沉积，其能够通过溶解矿物质并将砷酸盐还原为亚砷酸盐除去砷。 本发明的目的还是可以包含它们的这种细菌菌株或组合物的方法和用途，用于从矿物资源，原料工业废物或土壤中选择性除去砷。

公开(公告)号：US08696789B2

公开(公告)日：2014-04-15

申请号：US13148661

申请日：2010-02-11

Applicant: Tuomo Mäkelä ,  Pekka Niemelä

Inventor： Tuomo Mäkelä ,  Pekka Niemelä

IPC: C22C33/04 ,  C22C38/08 ,  C22B5/00 ,  C22B1/14

CPC classification number: C22C1/02 ,  C22B1/11 ,  C22B1/20 ,  C22B1/243 ,  C22B23/023 ,  C22C19/052 ,  C22C27/06 ,  C22C30/00 ,  C22C35/005

Abstract: The invention relates to a method for producing a ferroalloy containing nickel. From a fine-grained raw material containing iron and chromium and a fine-grained raw material containing nickel, a mixture is formed with binding agent, the mixture is agglomerated so that first formed objects of desired size are obtained. The objects formed are heat treated in order to strengthen the objects so that the heat treated objects withstand conveyance and loading into a smelter furnace. Further, the objects are smelted under reducing circumstances in order to achieve ferrochromenickel, a ferroalloy of a desired composition containing at least iron, chromium and nickel.

Abstract translation: 本发明涉及一种含有镍的铁合金的制造方法。 从含有铁和铬的细粒原料和含有镍的细粒原料中，用粘合剂形成混合物，使混合物凝聚，从而获得所需尺寸的第一成形物体。 所形成的物体被热处理以加强物体，使得热处理物体承受输送和装载到冶炼炉中。 此外，在减少的情况下，物体被熔炼以得到铁铬铁合金，所述铁铬合金是至少包含铁，铬和镍的所需组成的铁合金。

公开(公告)号：US08673208B2

公开(公告)日：2014-03-18

申请号：US13607101

申请日：2012-09-07

Applicant: Henry Rafael Bueno Colina

Inventor： Henry Rafael Bueno Colina

IPC: C21B13/00 ,  C22B3/02

CPC classification number: C21B13/0073 ,  C21B13/008 ,  C22B1/11 ,  C22B3/02 ,  Y02P10/136 ,  Y02P10/143 ,  Y02P10/234

Abstract: A process and apparatus for refining iron from high-phosphorus content iron ores. The process involves mixing a high-phosphorus iron oxide ore and an alkaline solution of pH between about 12.5 and 13.5, screening the mixture by gravity to separate an alkaline-high-phosphorus solution from a low-phosphorus iron ore; and treating the low-phosphorus iron ore with lime and a natural gas.

Abstract translation: 用于从高磷含量铁矿石中精炼铁的方法和装置。 该方法包括将高磷铁氧化物矿石和pH为约12.5至13.5的碱性溶液混合，通过重力筛选混合物以从低磷铁矿石中分离出碱 - 高磷溶液; 并用石灰和天然气处理低磷铁矿石。

公开(公告)号：US20090158893A1

公开(公告)日：2009-06-25

申请号：US12277046

申请日：2008-11-24

Applicant: Wan-Tai Yen ,  Richard Kwasi Amankwah ,  Yeonuk Choi

Inventor： Wan-Tai Yen ,  Richard Kwasi Amankwah ,  Yeonuk Choi

IPC: C22B11/00

CPC classification number: C22B11/04 ,  C22B1/06 ,  C22B1/11 ,  C22B3/18 ,  C22B3/24 ,  C22B11/08 ,  Y02P10/234

Abstract: The present invention is directed to recovery of gold from refractory and double refractory ores using a fungal agent and/or culture media.

Abstract translation: 本发明涉及使用真菌剂和/或培养基从耐火和双重耐火矿石回收金。

公开(公告)号：US4756745A

公开(公告)日：1988-07-12

申请号：US008526

申请日：1987-01-29

Applicant: Jose Polendo-Loredo

Inventor： Jose Polendo-Loredo

IPC: C01B35/10 ,  C03C1/02 ,  C22B1/11

CPC classification number: C03C1/022 ,  C01B35/1063 ,  C22B1/11 ,  Y02P10/234

Abstract: An improved process to benefit colemanite and/or howlite minerals comprising the stages of: treating mineral with sulfuric acid in order to dissolve boron compounds; separating the solution formed from the solids in suspension; reacting said solution with hydrogen sulfide in order to precipitate the arsenic and iron impurities contained in the solution, and separating the impurities precipitated from the remaining solution as a beneficiated colemanite with boron. Said solution of the beneficiated colemanite with boron can be dried by spray fluidizing in order to obtain solid beneficiated colemanite with boron or said solution can be reacted with calcium hydroxide to precipitate a beneficiated colemanite with calcium borate which is separated from the remaining solution. This can be recycled for treatment with sulfuric acid to concentrate the mineral.The beneficiated colemanite with precipitated calcium borate, can be reacted with sulfuric acid in order to separate gypsum from the solution, while evaporating the remaining solution to precipitate boric acid. Said evaporation could be partial, while recycling the remaining solution to the evaporation stage to concentrate the boric acid.

Abstract translation: 一种改善的方法，其有益于含钙钛矿和/或how矿矿物，其包括以下步骤：用硫酸处理矿物以溶解硼化合物; 将悬浮液中固体形成的溶液分离; 使所述溶液与硫化氢反应，以沉淀溶液中所含的砷和铁杂质，并用硼将作为精选的科氏石英的从剩余溶液中沉淀的杂质分离。 所选择的含有硼硅酸钙的溶液可以通过喷雾流化来干燥，以便用硼获得固体选择的钙质石棉，或者所述溶液可以与氢氧化钙反应，从而与剩余溶液分离出的硼酸钙沉淀出精选的钙质石。 这可以回收利用硫酸处理以浓缩矿物。 使用沉淀的硼酸钙的精选煤灰岩可以与硫酸反应，以便将石膏与溶液分离，同时蒸发剩余的溶液以沉淀硼酸。 所述蒸发可以是部分的，同时将剩余的溶液再循环到蒸发阶段以浓缩硼酸。

公开(公告)号：US4256485A

公开(公告)日：1981-03-17

申请号：US83612

申请日：1979-10-11

Applicant: Frederick J. Richardson

Inventor： Frederick J. Richardson

IPC: C22B1/11 ,  C22B3/18

CPC classification number: C22B3/18 ,  C22B1/11 ,  Y02P10/234 ,  Y10S423/17 ,  Y10S435/942

Abstract: A process for treating sulfide ores to reduce the sulfur content or recover the metal content therefrom comprises the use of enzymatic action to solubilize the sulfur and metal content.A nutrient, such as a saccharide, is used along with yeast spores which feed on the sugar and produce enzymes which act on sulfur in the sulfide ore to cause the sulfur to go into solution and to dissolve those metals which are soluble in strongly acidic solution. Sulfuric acid can be formed from the sulfide ores or from free sulfur by reaction with water, with evolution of hydrogen sulfide gas. Oxidation of at least a portion of the hydrogen sulfide can be achieved to regenerate sulfuric acid.

Abstract translation: 用于处理硫化矿石以降低硫含量或回收金属含量的方法包括使用酶作用来溶解硫和金属含量。 与糖一起使用的营养物质与酵母孢子一起使用，所述酵母孢子在糖上产生并产生在硫化矿中作用于硫的酶，以使硫进入溶液中并溶解可溶于强酸性溶液中的那些金属 。 硫酸可以由硫化矿石形成，也可以通过与水反应形成游离硫，同时形成硫化氢气体。 可以实现至少一部分硫化氢的氧化以再生硫酸。

公开(公告)号：US975217A

公开(公告)日：1910-11-08

申请号：US1909531592

申请日：1909-12-06

Applicant: IMBERT PROCESS COMPANY

Inventor： DESGRAZ ADOLPHE

CPC classification number: C22B1/11

公开(公告)号：US635093A

公开(公告)日：1899-10-17

申请号：US1898697070

申请日：1898-11-21

Applicant: ELLERSHAUSEN FRANCIS

Inventor： ELLERSHAUSEN FRANCIS

CPC classification number: C22B1/11

公开(公告)号：US20240124952A1

公开(公告)日：2024-04-18

申请号：US18277852

申请日：2022-02-25

Applicant: NITTETSU MINING CO., LTD.

Inventor： Yousuke EBISU ,  Tamaki SAITO ,  Kohei MITSUHASHI

IPC: C22B15/00 ,  C22B1/11 ,  C22B30/04

CPC classification number: C22B15/0089 ,  C22B1/11 ,  C22B30/04

Abstract: In producing a copper concentrate by flotation in which copper minerals are separated from arsenic minerals by using oxoacids of sulfur and oxidants, the arsenic in the copper concentrate is reduced by a simple method. In producing the copper concentrate by the flotation in which an arsenic-containing copper ore is a raw material, the oxoacids of sulfur and hydrogen peroxide as the oxidant are used together as additive reagents, and added in this order.