公开(公告)号：US11779935B2

公开(公告)日：2023-10-10

申请号：US16693186

申请日：2019-11-22

Applicant: Central South University

Inventor： Haisheng Han ,  Wei Sun ,  Yuehua Hu ,  Ruolin Wang ,  Zhao Wei ,  Wenjuan Sun ,  Li Wang ,  Yue Yang ,  Honghu Tang ,  Qingpeng Zhang ,  Lei Sun

IPC: B03D1/002 ,  B03D1/02 ,  B03D1/018 ,  C01F11/22

CPC classification number: B03D1/002 ,  B03D1/018 ,  B03D1/02 ,  C01F11/22 ,  B03D2201/06 ,  B03D2203/02

Abstract: Disclosed are a slow-release inhibitor for high-magnesium sulfide mineral flotation and an application thereof, where the inhibitor is a nano colloidal particle of an alkaline earth fluoride such as CaF2 and BaF2 or a highly-reactive natural alkaline earth metal mineral powder. When applied to the flotation separation of a high-magnesium sulfide ore, the inhibitor can slowly release F ions to preferentially form a MgF2 layer on the magnesium-containing mineral surface, which provides a structure similar to MgF2 on a surface of oxidized gangue minerals such as magnesium oxide, changing surface electrical property of the magnesium-containing mineral, inhibiting heterogeneous coagulation of magnesium-containing minerals and sulfide ores due to electrostatic attraction and reducing entrainment, enveloping and agglomeration of gangue minerals to efficiently inhibit the flotation of oxidized gangue minerals such as magnesium oxide.

公开(公告)号：US20180257089A1

公开(公告)日：2018-09-13

申请号：US15908992

申请日：2018-03-01

Applicant: Chevron Phillips Chemical Company LP

Inventor： Benigno Ramos

IPC: B03D1/012 ,  B03D1/002

CPC classification number: B03D1/012 ,  B03D1/002 ,  B03D1/018 ,  B03D2201/02 ,  B03D2201/06 ,  B03D2203/02

Abstract: The present invention discloses mining collector compositions containing sodium metabisulfite and a thiocarbonate compound. Flotation processes for recovering molybdenum from a copper-molybdenum concentrate using the collector compositions also are disclosed.

公开(公告)号：US20180071752A1

公开(公告)日：2018-03-15

申请号：US15538471

申请日：2015-12-18

Applicant: KEMIRA OYJ

Inventor： Lucas Moore ,  Xihui Yin ,  Jean Robert Durand

IPC: B03D1/016 ,  B03D1/008 ,  B03D1/01

CPC classification number: B03D1/016 ,  B03D1/008 ,  B03D1/01 ,  B03D2201/06 ,  B03D2203/02

Abstract: Depressants comprising a polymer comprising: a) recurring units of one or more acrylamide monomers; b) recurring units of one or more monomers selected from hydroxyalkyl alkylacrylate, allyloxyalkyldiol, allyloxyethanol, trimethylolpropane allyl ether, and 2-hydroxy ethyl acrylate; and optionally, c) recurring units of one or more acrylic acid monomers are provided. Also disclosed are processes for enriching a desired mineral from an ore comprising the desired mineral and gangue, wherein the process comprises carrying out a flotation process in the presence of one or more of the depressants.

公开(公告)号：US09567655B2

公开(公告)日：2017-02-14

申请号：US14056498

申请日：2013-10-17

Applicant: Georgia-Pacific Chemicals LLC

Inventor： Michael S. Kerns ,  Pablo G. Dopico ,  John B. Hines

IPC: B03D1/02 ,  B03D1/016 ,  B03D1/18 ,  C22B3/00 ,  B03D1/002 ,  B03D1/018 ,  B03D1/004 ,  B03D1/008

CPC classification number: C22B3/00 ,  B03D1/002 ,  B03D1/0046 ,  B03D1/008 ,  B03D1/016 ,  B03D1/018 ,  B03D1/02 ,  B03D1/021 ,  B03D2201/005 ,  B03D2201/06 ,  B03D2203/02 ,  B03D2203/06

Abstract: Methods for purifying one or more value materials are provided. The method can include contacting an aqueous mixture comprising a value material and a contaminant with a dispersant and a depressant to produce a treated mixture. A weight ratio of the dispersant to the depressant can be from about 1:1 to about 30:1. The method can also include recovering a purified product comprising the value material from the treated mixture. The purified product can have a reduced concentration of the contaminant relative to the aqueous slurry.

Abstract translation: 提供了一种或多种价值材料的纯化方法。 该方法可以包括使包含有价值物质和污染物的含水混合物与分散剂和抑制剂接触以产生经处理的混合物。 分散剂与抑制剂的重量比可以为约1:1至约30:1。 该方法还可以包括从经处理的混合物中回收包含有价值物质的纯化产物。 纯化的产品相对于含水浆料可以具有降低的污染物浓度。

公开(公告)号：US09421556B2

公开(公告)日：2016-08-23

申请号：US14671168

申请日：2015-03-27

Applicant: Kemira Oyj

Inventor： Marcelo Moreira Da Costa ,  Jorge Eduardo Langsch ,  Paulo Henrique Morais ,  Lucas Moore

IPC: B03D1/016 ,  B03D1/02 ,  B03D1/012

CPC classification number: B03D1/016 ,  B03D1/012 ,  B03D1/02 ,  B03D2201/02 ,  B03D2201/06 ,  B03D2203/02

Abstract: Depressants comprising one or more types of polysaccharides comprising one or more types of pentosan units are provided. Also disclosed are processes for enriching a desired mineral from an ore comprising the desired mineral and gangue, wherein the process comprises carrying out a flotation process in the presence of one or more collecting agents and one or more of the depressants.

Abstract translation: 提供了包含一种或多种包含一种或多种戊聚糖单元的多糖的抑制剂。 还公开了用于从包含所需矿物和脉石的矿石中富集所需矿物的方法，其中所述方法包括在一种或多种收集剂和一种或多种抑制剂的存在下进行浮选方法。

公开(公告)号：US09387490B2

公开(公告)日：2016-07-12

申请号：US13862117

申请日：2013-04-12

Applicant: VALE S.A.

Inventor： Jie Dong ,  Manqiu Xu

IPC: B03D1/02 ,  B03D1/06 ,  B03D1/016 ,  B03D1/018 ,  B03D1/01 ,  B03D1/012 ,  B03D1/014

CPC classification number: B03D1/01 ,  B03D1/012 ,  B03D1/014 ,  B03D1/016 ,  B03D1/018 ,  B03D1/06 ,  B03D2201/02 ,  B03D2201/06 ,  B03D2203/02

Abstract: A method of using the synergy of multiple depressants to improve the depression of iron sulphide without compromising the recovery of the valuable sulphide minerals in the flotation of non-ferrous metal sulphides, while reducing or eliminating the use of environmentally problematic chemicals such as polyamines. The method has significant economic and environmental benefits. The multiple depressants comprise at least one organic polymer, at least one sulphur-containing compound and/or at least one nitrogen-containing organic compound.

Abstract translation: 使用多重抑制剂的协同作用的方法可以改善硫化铁的抑制，而不损害有色金属硫化物浮选中有价值的硫化物矿物的回收，同时减少或消除使用有环境问题的化学物质如多胺。 该方法具有重要的经济和环境效益。 多重抑制剂包含至少一种有机聚合物，至少一种含硫化合物和/或至少一种含氮有机化合物。

公开(公告)号：US08757389B2

公开(公告)日：2014-06-24

申请号：US11480561

申请日：2006-07-05

Applicant: James T. Wright ,  Carl R. White ,  Kurt Gabrielson ,  John B. Hines ,  Lisa M. Arthur ,  Michael J. Cousin

Inventor： James T. Wright ,  Carl R. White ,  Kurt Gabrielson ,  John B. Hines ,  Lisa M. Arthur ,  Michael J. Cousin

IPC: B03D1/04 ,  B03D1/02 ,  B03D1/016

CPC classification number: C08G71/02 ,  B03D1/008 ,  B03D1/01 ,  B03D1/016 ,  B03D1/02 ,  B03D1/06 ,  B03D3/06 ,  B03D2201/06 ,  B03D2203/006 ,  B03D2203/02 ,  C02F1/285 ,  C02F1/52 ,  C02F2101/20 ,  C02F2103/10 ,  C02F2103/28 ,  E21B21/068

Abstract: Amine-aldehyde resins are disclosed for removing a wide variety of solids and/or ionic species from the liquids in which they are suspended and/or dissolved. These resins are especially useful as froth flotation depressants, for example in the beneficiation of value materials (e.g., bitumen, coal, or kaolin clay) to remove impurities such as sand. The resins are also useful for treating aqueous liquid suspensions to remove solid particulates, as well as for removing metallic ions in the purification of water.

Abstract translation: 公开了胺醛树脂用于从悬浮和/或溶解的液体中除去多种固体和/或离子物质。 这些树脂特别可用作泡沫浮选抑制剂，例如在选择价值材料（例如沥青，煤或高岭土）以除去杂质如沙子时。 这些树脂也可用于处理水性液体悬浮液以除去固体颗粒，以及在净化水中除去金属离子。

公开(公告)号：US5507395A

公开(公告)日：1996-04-16

申请号：US475161

申请日：1995-06-07

Applicant: Samuel S. Wang ,  D. R. Nagarai

Inventor： Samuel S. Wang ,  D. R. Nagarai

IPC: B03D1/016 ,  B03D1/02 ,  B03D1/008

CPC classification number: B03D1/016 ,  B03D1/01 ,  B03D2201/06 ,  B03D2203/04

Abstract: A method for the depression of non-sulfide, silicate gangue minerals is provided wherein the depressant is a graft polymer of polyvinyl alcohol and an acrylamide.

Abstract translation: 提供了一种抑制非硫化物，硅酸盐脉石矿物的方法，其中抑制剂是聚乙烯醇和丙烯酰胺的接枝聚合物。

公开(公告)号：US5074993A

公开(公告)日：1991-12-24

申请号：US683623

申请日：1991-02-22

Applicant: Andrew N. Kerr ,  Dietrich Liechti ,  Maria A. Marticorena ,  Daniel A. Pelland

Inventor： Andrew N. Kerr ,  Dietrich Liechti ,  Maria A. Marticorena ,  Daniel A. Pelland

IPC: B03D1/004 ,  B03D1/01 ,  B03D1/02

CPC classification number: B03D1/01 ,  B03D1/012 ,  B03D1/02 ,  B03D1/06 ,  B03D2201/02 ,  B03D2201/06 ,  B03D2203/02

Abstract: A method of flotation of sulfides wherein pyrrhotite is depressed by use of a water-soluble polyamine while non-ferrous metal-containing sulfide or sulfidized minerals are floated selectively.

Abstract translation: 一种浮选硫化物的方法，其中通过使用含水金属的硫化物或硫化矿物质选择性地漂浮，通过使用水溶性多胺来抑制磁黄铁矿。

公开(公告)号：US4952329A

公开(公告)日：1990-08-28

申请号：US400224

申请日：1989-08-29

Applicant: Srdjan Bulatovic ,  Robert S. Salter

Inventor： Srdjan Bulatovic ,  Robert S. Salter

IPC: B03D1/002 ,  B03D1/01 ,  B03D1/012 ,  B03D1/016 ,  B03D1/018 ,  B03D1/06

CPC classification number: B03D1/06 ,  B03D1/002 ,  B03D1/016 ,  B03D1/012 ,  B03D2201/06 ,  B03D2203/02

Abstract: A new depressant composition is provided for the enhanced separation into separate value metal concentrates of copper, nickel, zinc, lead present in polymetallic and massive sulphide ores.The depressant is added in an aqueous solution prepared by dissolving first a mixture of quebrachio and dextrin, or quebracho and guar gum. To the solution of modified quebracho a water soluble salt of lignin sulphonate is added. The aqueous polymer of modified quebracho lignin sulphonate is further mixed with one or more of the following inorganic reagents: water soluble cyanide, metal sulphates and water soluble sulphites. The resulting depressant is added together with conventional flotation reagents in conventional mineral separation stages as required.

Abstract translation: 提供了一种新的抑制剂组合物，用于增强分离成多金属和块状硫化物矿石中存在的铜，镍，锌，铅的分离值金属浓缩物。 将抑制剂加入到通过首先溶解quebrachio和糊精或quebracho和瓜尔胶的混合物制备的水溶液中。 加入木瓜磺酸盐的水溶性盐溶液， 改性木质素木质素磺酸盐的水性聚合物进一步与一种或多种以下无机试剂混合：水溶性氰化物，金属硫酸盐和水溶性亚硫酸盐。 所得到的抑制剂与常规浮选试剂一起在常规矿物分离阶段加入。