序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
61 CHARGED ENGINEERED POLYMER BEADS/BUBBLES FUNCTIONALIZED WITH MOLECULES FOR ATTRACTING AND ATTACHING TO MINERAL PARTICLES OF INTEREST FOR FLOTATION SEPARATION US14400697 2013-05-22 US20150151308A1 2015-06-04 Michael A. Davis
Apparatus is providing featuring a synthetic bead having a solid-phase body with a surface, and being configured with a predetermined electric charge so as to respond to a corresponding predetermined electric field; and a plurality of molecules attached to at least part of the surface, the molecules comprising a functional group selected for attracting and attaching one or more mineral particles of interest to the molecules. Some combination of the solid-phase body or the surface may be configured from a polymer. The polymer may be polyethylenimine. The polyethylenimine may be engineered or configured to be highly charged so as to be used to collect the mineral particles of interest and then manipulated through and by the corresponding predetermined electric field.
62 Electrode US12743100 2008-11-14 US08764963B2 2014-07-01 Magnus Rosvall; Rolf Edvinsson-Albers; Kristoffer Hedenstedt
A process for producing alkali metal chlorate that includes introducing an electrolyte solution containing alkali metal halide and alkali metal chlorate to an electrolytic cell, electrolyzing the electrolyte solution to produce an electrolyzed chlorate solution, transferring the electrolyzed chlorate solution to a chlorate reactor to produce a more concentrated alkali metal chlorate, wherein the electrolytic cell is a non-divided electrolytic cell that includes: at least one anode or at least one cathode that includes an electrode substrate comprising M(n+1)AXn, where M is a metal of group IIIB, IVB, VB, VIB or VIII of the periodic table of elements or a combination thereof, A is an element of group IIIA, IVA, VA or VIA of the periodic table of elements or a combination thereof, X is carbon, nitrogen or a combination thereof, where n is 1, 2, or 3; and an outlet for transferring electrolyzed solution to the chlorate reactor.
63 Method and apparatus for separating impurities from a liquid stream by electrically generated gas bubbles US12113443 2008-05-01 US08465642B2 2013-06-18 Bijan Kazem
A method and apparatus for separating impurities from a liquid stream includes a feed tank for containing an untreated liquid, a mixer for generating and mixing bubbles throughout the wastewater, and a settling tank for allowing the wastewater to settle for removal of impurities through dissolved gas floatation. The mixer includes a housing and a rotor rotatably mounted within the housing. The rotor is electrically isolated and the peripheral wall of the housing is electrically isolated and the rotor preferably has bores formed in its peripheral surface to produce cavitation to aid in mixing of fluid within the mixer. A power supply is coupled to establish a relatively positive electrical charge on the rotor and a relatively negative electrical charge on the wall of the housing. The charge causes electrolysis to occur within the fluid, which forms small low surface tension gas bubbles on the rotor and housing wall. These bubbles detach and are mixed with the fluid, where they can attach to and separate impurities through dissolved gas floatation.
64 Electrode US12743100 2008-11-14 US20100236937A1 2010-09-23 Magnus Rosvall; Rolf Edvinsson-Albers; Kristoffer Hedenstedt
An electrode substrate comprising M(n+1)AXn, where M is a metal of group IIIB, IVB, VB, VIB or VIII of the periodic table of elements or a combination thereof, A is an element of group IIIA, IVA, VA or VIA of the periodic table of elements or a combination thereof, X is carbon, nitrogen or a combination thereof, where n is 1, 2, or 3; and b) an electrocatalytic coating deposited on said electrode substrate, said coating being selected from at least one of b.1) a metal oxide and/or metal sulfide comprising ByC(1−y)Oz1Sz2, wherein B is at least one of ruthenium, platinum, rhodium, palladium, iridium, and cobalt, C is at least one valve metal, y is 0.4-0.9, 0<=z1, z2<=2 and z1+z2=2; b.2) a metal oxide comprising BfCgDhEi, wherein B is at least one of ruthenium, platinum, rhodium, palladium, and cobalt, C is at least one valve metal, D is iridium, E is Mo and/or W, wherein f is 0-0.25 or 0.35-1, g is 0-1, h is 0-1, i is 0-1, wherein f+g+h+i=1; b.3) at least one noble metal; b.4) any alloy or mixture comprising iron-molybdenum, iron-tungsten, iron-nickel, ruthenium-molybdenum, ruthenium-tungsten or mixtures thereof; b.5) at least one nanocrystalline material. The electrode is used in an electrolytic cell for the production of alkali metal chlorate.
65 Particle separator US529988 1995-09-19 US5759390A 1998-06-02 Saleam Essop; Allen G. Bullard
This invention relates to a separator device for the separation of fine particles from a contaminated liquid. The device utilizes the process of electrolysis to produce small gas bubbles which attach themselves to the fine particles and move the particles to the top of the liquid surface where they can be easily removed. The separation is facilitated by the use of baffles which prevent the formation of convection currents in the body of the separator device, and by inclined plates which direct the rising particles towards the removal point.
66 Electric enhancement of adsorbent flotation separation US254840 1994-06-06 US5480558A 1996-01-02 Youssef El-Shoubary; Donald E. Woodmansee
An adsorbent electrode assembly electrically enhances contaminant removal in soil washing processes. The adsorbent electrode assembly is immersed in the froth of a flotation cell and connected to one pole of a battery. The other pole of the battery is connected to the flotation cell tank. The resulting electric charge (either positive or negative depending on the nature of the contaminant) applied to the adsorbent electrode assembly attracts contaminants in the froth to the adsorbent electrode assembly which adsorbs them. The adsorbent electrode assembly is then easily removed from the cell for replacement or regeneration. The adsorbent electrode assembly can comprise one or more carbon rods, a carbon screen, or a porous bag filled with an adsorbent material and having an electrode disposed therein.
67 Separation accelerator US011880 1993-02-01 US5380417A 1995-01-10 Saleam Essop; Allen Bullard
This invention relates to a device for the separation of immiscible liquids of different specific gravities, using gravity. The process of separation is facilitated, and separation quality is improved by using the process of electrolysis within a gravity separator.
68 Method and apparatus for increasing flotation cell recovery and grade of complex copper-containing ores US530970 1990-05-30 US5182014A 1993-01-26 Laurence R. Goodman
Micron sized gas bubbles produced by electrolysis (e.g., oxygen and/or hydrogen gas bubbles by the electrolysis of water) are introduced into a flotation cell which is also provided with larger bubbles produced by sparging a gas such as air into the flotation cell. The mixed presence of both large bubbles and small bubbles serves to improve the recovery of various copper-containing ores. The small bubble producing electrodes can be retrofitted into an existing sparged gas driven flotation cell.
69 Flotation apparatus and process utilizing a novel mixing and floc dispersion means US428776 1982-09-30 US4490259A 1984-12-25 Samuel F. Coffing
This invention generally relates to an improved flotation apparatus and process for purifying a stream of effluent by forming a separable, buoyant floc out of the waste matter suspended in the effluent. The improved apparatus and process utilizes a mixing and floc dispersion means for intimately admixing the stream of effluent with a conditioning agent in a stream of tiny gas bubbles. The mixing and floc dispersion means also functions to dampen floc-sinking currents which are generated by the introduction of the stream of effluent into the flotation tank, and to uniformly disperse the resulting floc across the width of the tank. The mixing and floc dispersion means includes a series of at least two elongated, fluidly connected chambers, wherein the second chamber has a larger cross-sectional area than the first chamber.
70 Electrode assembly US962996 1978-11-22 US4206030A 1980-06-03 Scott A. Santora
An improved electrode assembly for use in electrolytic flotation for wastewater treatment comprises a series of overlying layers of foraminous mesh arranged in substantially horizontal planes, wherein electrically conductive mesh layers constituting the anode and cathode are maintained in closely spaced relationship with each other, but are prevented from coming into direct contact with each other by one or more insulating mesh layers.
71 Clarifier and method US784559 1977-04-04 US4116789A 1978-09-26 Arthur S. King
A fluid, such as air or water, carrying suspended solids is directed between a pair of oppositely charged, corrugated surfaces in order to subject the flow to an undulating action that increases the frequency with which the solid particles impinge against one another, thereby increasing the rate of flocculation of the solids. In the case of airborne particles, the corrugated surfaces are arranged in an upright condition so that the flocculated particles attracted to one or the other of such surfaces gravitate therefrom into a conveying mechanism that delivers such particles to a collecting receptacle. In the case of liquid-borne particles, the flow is forced to travel upwardly against the force of gravity after passing between the surfaces, thereby encouraging the flocculated particles to settle out into a sump that is associated with the uphill flow passage. In each case, two sets of charged surfaces may be utilized, the first having at least one of its surfaces insulated from the flow for electrostatic action only, while the second has neither surfaces so insulated for electrolytic action.
72 Automatic foam remover for flotation tanks US453174 1974-03-20 US3935104A 1976-01-27 Charles E. Russell; Fred E. Russell; Melvin B. Pearson
An automatic foam remover for a substantially rectangular flotation tank in which during operation thereof a layer of foam accumulates on the top surface of a liquid body therein, said foam remover comprising a hollow beam extending horizontally across the top of the tank and being movable back and forth between two parallel side walls of the tank by means of motor-driven endless chains mounted on the tank and operably connected with said beam, the hollow interior of which is in communication with a source of vacuum. Said hollow beam is provided with a longitudinal bottom slot through which a vane which is pivotally mounted within the hollow beam, extends downwardly through said layer of foam, whereby said vane during the movement of the beam is alternately forced into engagement with the two edges of said slot and thereby causes the layer of foam to be subjected to the action of the source of vacuum alternately at one side of the vane and at the other side thereof.
73 System for introducing flocculating ions and air into waste water treatment systems US44550274 1974-02-25 US3925203A 1975-12-09 TURNER ABNER B
The recovery of suspended solids from different types of waste water is improved by locating an annular electrode assembly external to tank-like flotation cell used for effecting such solids removal. Air is introduced into water circulated from a cell-containing liquid being treated and is pumped under high pressure into a housing for the electrode. The water is retained in the housing for a time sufficient to permit the air to dissolve in the water and for flocculating ions to be added to the system as a result of electrolytic erosion of the electrode metal. The mixture of well-mixed waste water, dissolved air and metal flocculating ions are discharged through an expansion valve into a flocculating tank or cell containing the liquid. The air then comes out of solution in the form of minute bubbles and combines with the flocculating ions to carry suspended particles of solids to the surface. The floc thus produced is then skimmed or otherwise removed from the tank surface and transported to a disposal site.
74 Flotation process US48719374 1974-07-10 US3920530A 1975-11-18 XYLANDER KURT
In a process for purifying an aqueous liquid by flotation of suspended solids with gas bubbles produced by electrolysis between at least one pair of electrodes, at least one of said electrodes, preferably in the form of an endless belt or band, is transported in or through said liquid while said electrolysis and flotation are taking place. Bridging and fouling of the electrodes are thereby minimised.
75 Method and apparatus for separation of sludge US4588270 1970-06-12 US3822204A 1974-07-02 SAKO F; CHANDLER S
AN APPARATUS FOR SEPARATING A SLUDGE-CONTAINING LIQUID MEDIUM PRODUCED BY THE PROCESSING OF SEWAGE INTO A CLARIFIED LIQUID AND A SLUDGE CONCENTRATE. COMPANION ELECTRODES IN THE BOTTOM OF THE CONTAINER PRODUCE GAS BY ELECTROLYSIS OF WATER WHICH RISES AS DISPERSED BUBBLES AND UPON OCCLUSION TO SLUDGE PARTICLES FLOATS THE PARTICLES TO THE LIQUID SURFACE. SLUDGE CONCENTRATE FLOATING ADJACENT THE SURFACE OF THE LUQUID MEDIUM IS MOVED OUT OF THE CONTAINER BY A SKIMMER AND CLARIFIED LIQUID IS DISCHARGED FROM THE LOWER PORTION OF THE CONTAINER.
76 Selective separation of ores US46109330 1930-06-14 US1891776A 1932-12-20 O'MALLEY LOUIS J
77 Metallurgical process US20433717 1917-11-28 US1344127A 1920-06-22 GREENAWALT WILLIAM E
78 Separating apparatus. US1911611405 1911-02-28 US1069169A 1913-08-05 PARKER HOWARD
79 Systems for obtaining intracellular product from algal and cell clumps and debris, apparatus and method, and derivative and using the JP2012507316 2010-04-20 JP2012523849A 2012-10-11 エックルベリー,ニコラス,ディー.; グリーン,マイケル,フィリップ; フレイザー,スコット,アレキサンダー
Systems and methods for harvesting at least one intracellular product (e.g., lipids, carbohydrates, proteins, etc.) from algae cells in aqueous suspension and for harvesting a mass of ruptured algae cells and debris from an aqueous solution containing algae cells make use of an apparatus that includes an electrical circuit. The electrical circuit includes an outer anode structure (e.g., tube) which provides containment for an inner structure (e.g., electrical conductor) having lesser dimensions than the outer anode structure, the inner structure serving as a cathode. A spiraling surface, such as a plurality of grooves separated by at least one land, much as in the nature of "rifling" in the barrel of a gun, or alternatively, an electrically insulative, isolator spacer in parallel to both structures (e.g., the outer tube and internal conductor) provides a liquid seal and provides spacing between the anode and cathode circuits which is required for equal electrical distribution and to prevent short circuiting of the flow path for the aqueous solution containing algae cells.
80 Method for treating industrial waste water by electrolysis and apparatus therefor JP6376495 1995-03-23 JPH0839074A 1996-02-13 BUIRI BUITSUTO
The DC supply to the electrodes of the reactor, is pushed at up to 800 Hz. At the same time, the inlet flow is accelerated in a short pulse, and constrained to flow with elevated velocity over the electrodes. The electrical conductivity of the flow is measured between the electrode cross sections. From this result, the applied DC current is controlled to maintain optimal current density corresponding to the complete, original electrode cross section. Equipment to carry out the above procedure is also claimed.
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