-
公开(公告)号：US20210276023A1
公开(公告)日：2021-09-09
申请号：US15734226
申请日：2020-06-19
发明人： Hong ZHONG , Qing SUN , Shuai WANG
IPC分类号： B03D1/012
摘要： An alkyl thioether ethyl hydroxamic acid beneficiation reagent and a preparation method and application thereof are provided. The alkyl thioether ethyl hydroxamic acid molecules have two functional groups, a thioether group and a hydroxamate group. The beneficiation reagent is obtained by esterification of alkyl thioether acetic acid and methanol and then by hydroxamation of hydroxylamine and an alkali. The alkyl thioether ethyl hydroxamic acid beneficiation reagent can be used as a collector for mineral flotation. The preparation method is simple and has a high yield. The thioether and hydroxamate group in the molecules have a synergistic effect and can effectively improve the collection performance.
-
2.发明授权公开(公告)号：US10934191B2
公开(公告)日：2021-03-02
申请号：US15257668
申请日：2016-09-06
IPC分类号： B03D1/012 , B03D1/01 , B03D1/006 , B03D1/016 , C02F1/68 , B01D17/02 , C02F1/24 , B01D17/12 , B01D19/02 , C02F101/32 , C02F1/40 , B03D1/02
摘要： Methods of making various capillary foams are provided. The foams can include liquid foams having a plurality of particles connected by a network of a secondary fluid at the interface between the discontinuous and continuous phase. The foams can also include solid foams where the continuous phases (bulk fluid) is removed to produce the solid foam having high overall porosities and low densities. Densities as low as 0.3 g cm−3 and porosities as high as 95% or higher can be achieved. The secondary fluid can be polymerized to further strengthen the solid foam. Methods and devices are also provided for oil recovery from water using a capillary foam. The methods can include forming a capillary foam wherein the oil is the secondary fluid, and wherein the foam can transport the oil to the surface of the water.
-
公开(公告)号：US10737280B2
公开(公告)日：2020-08-11
申请号：US16361156
申请日：2019-03-21
发明人： Guangyi Liu , Yaoguo Huang , Longqun Ma , Xiaoxue Niu , Jun Liu , Hong Zhong , Zhe Hu
摘要： The present invention relates to an azolethione flotation collector and application thereof. According to the application, an azolethione compound such as a 1,3,4-thiadiazole-2-thione compound, a 1,3,4-oxadiazole-2-thione compound, a 1,2,4-triazole-3-thione compound or a 1,2,4,5-tetrazole-3-thione compound is used as a mineral flotation collector to be applied to ores containing copper, zinc, lead, nickel, cobalt, platinum, palladium, silver or gold minerals to realize flotation recovery of valuable metal minerals. Compared with common flotation collectors in the existing technologies, the flotation collector of the present invention can effectively improve enrichment and recovery of copper, zinc, lead, nickel, cobalt, platinum, palladium, silver or gold minerals.
-
公开(公告)号：US10654048B2
公开(公告)日：2020-05-19
申请号：US15908992
申请日：2018-03-01
发明人： Benigno Ramos
摘要： 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.
-
5.发明授权公开(公告)号：US10435308B2
公开(公告)日：2019-10-08
申请号：US13791276
申请日：2013-03-08
申请人： ECOLAB USA INC.
IPC分类号： C02F1/24 , C02F1/68 , B09C1/08 , B03D1/008 , B03D1/24 , B03D1/004 , B01D17/04 , B01D19/02 , B01D19/04 , C02F1/00 , C02F1/32 , C02F1/44 , C02F101/20 , C02F101/32 , C02F103/00 , C02F103/30 , C02F103/32 , E02B15/04 , B03D1/01 , B03D1/012 , B03D1/014
摘要： The present invention provides improved methods for purifying and/or removing oily particles, and/or contaminants suspended or dissolved in water. In particular the process relates to an additive composition that has the appropriate surfactant characteristics for effectively removing an oil phase from an oil/aqueous mixed phase via foam fractionation. According to the invention, a hydrophobically modified polymer that acts as an associative thickener is combined with surfactant in appropriate ratios to facilitate oil removal for water purification in any of a number of commercial, environmental and industrial applications.
-
公开(公告)号：US10413914B2
公开(公告)日：2019-09-17
申请号：US14374526
申请日：2013-01-25
申请人： Evonik Degussa GmbH
发明人： Gerhard Arnold , Terry Brown , Ingo Hamann , Alan Hitchiner
摘要： The present invention is directed to methods that can be used in the enrichment of metal sulfide ores in desired minerals in cases where the ores have sulfide-containing gangues. The method involves adding an oxidant to slurries prepared from the ores during, or immediately prior to froth flotation.
-
公开(公告)号：US10369577B2
公开(公告)日：2019-08-06
申请号：US15726810
申请日：2017-10-06
摘要： Compositions including blends of one or more acrylamide/allyl thiourea polymer as a first depressant, and one or more carboxyalkyl dithiocarbamate compound as a second depressant, and their use as depressants in the beneficiation of sulfide minerals from ores and/or concentrates are disclosed herein, along with methods for selectively separating value sulfide minerals from non-value sulfide minerals in a froth flotation process for the recovery of such value minerals.
-
公开(公告)号：US10118183B2
公开(公告)日：2018-11-06
申请号：US15531660
申请日：2015-12-01
发明人： Uwe Wachsmuth , Jochen Brod
摘要： The invention relates to a process for selective flotation of kainite from crushed crude potash salts or, for example, from crystallized salt mixtures obtained by evaporation processes, which in addition to kainite may contain further minerals such as halite, sylvine and other salt minerals, for example, in order to produce a kainite concentrate fraction and a residues fraction. The separation process is characterized in that the crushed or crystallized salt mixture is intensively mixed as a crystallizate suspension with a combination of conditioning agents consisting of a sulfated fatty acid or its alkali metal salt as collecting reagent and a frothing agent known for flotation (for example, glycol ether, monohydric aliphatic alcohols, terpene alcohols, polyglycol ethers, etc.) and is then separated by agitator-driven or pneumatic flotation into a kainite concentrate fraction and a residues fraction. The resulting fractions may be further processed in downstream processes. This process permits industrial-scale processing for selective extraction of kainite from mineral mixtures by means of the flotation process.
-
9.发明授权公开(公告)号：US10105713B2
公开(公告)日：2018-10-23
申请号：US15325916
申请日：2015-04-22
发明人： Antonio Pedro De Oliveira Filho , Jesus Pitarch López , Wagner Claudio Da Silva , Gunter Lipowsky , Jacques Collin Bezuidenhout , Jaime Osvaldo Gomez Becerra , Rodrigo Alexis Caris Andrade , Franco Aurelio Constanzo Yanez
摘要： The instant invention relates to a composition in form of a stable aqueous emulsion comprising a) 1-50 wt.-% of at least one water insoluble thionocarbamate collector selected from the group consisting of dialkyl thionocarbamates, alkyl alkoxycarbonyl thionocarbamates and alkyl allyl thionocarbamates, b) 1-50 wt.-% of one or a mixture of surface active agents of the general formula wherein R1 is a saturated or unsaturated, branched or linear C3 to C30 aliphatic or aromatic hydrocarbon group, R2 and R3 are independently from each other hydrogen or a C1 to C4 alkyl group, R4 is hydrogen or —CH2—COOX where X is hydrogen or sodium salt or potassium salt or ammonium salt, and n and m are independently from each other 0 to 50, c) 0.1-20 wt.-% of a mixture of at least one alcohol and at least one ether and/or ester, e) 1-90 wt.-% of water.
-
公开(公告)号：US20180099293A1
公开(公告)日：2018-04-12
申请号：US15726810
申请日：2017-10-06
CPC分类号： B03D1/02 , B03D1/008 , B03D1/01 , B03D1/012 , B03D1/016 , B03D2201/005 , B03D2201/007 , B03D2201/02 , B03D2201/04 , B03D2201/06 , B03D2203/02 , C07C333/14 , C08L33/26
摘要： Compositions including blends of one or more acrylamide/allyl thiourea polymer as a first depressant, and one or more carboxyalkyl dithiocarbamate compound as a second depressant, and their use as depressants in the beneficiation of sulfide minerals from ores and/or concentrates are disclosed herein, along with methods for selectively separating value sulfide minerals from non-value sulfide minerals in a froth flotation process for the recovery of such value minerals.
-
-
-
-
-
-
-
-
-
搜索结果
514 条记录 (耗时 0.029 秒)