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patent usmagnetic separation of mineral particles

US3926789A - Magnetic separation of particular mixtures ...

Particulate mixtures of non-magnetic or paramagnetic materials are separated by selectively coating the surfaces of a component or components of the mixture with a magnetic fluid. Thereafter, the particulate mixture is subjected to a magnetic separation yielding a magnetic fluid-coated fraction and a non-magnetic fraction. The process is especially useful in mineral beneficiation wherein a ...

US3539003A - Separation of minerals - Google Patents

US3539003A US3539003DA US3539003A US 3539003 A US3539003 A US 3539003A US 3539003D A US3539003D A US 3539003DA US 3539003 A US3539003 A US 3539003A Authority US United States Prior art keywords suspension quartz weight clay mineral water Prior art date 1967-07-14 Legal status (The legal status is an assumption and is not a legal conclusion.

Magnetic separation of mineral particles from shale oil ...

The magnetic separation techniques of this invention can achieve 50 weight percent and even 90 weight percent or higher separation efficiency in a single stage, when about 90% by weight of the mineral particles in the fluid are smaller than 10 micrometers in diameter, even when more than 50, 60 or 70% smaller than 5 micrometers in diameter.

US5411863A - Methods and materials for ... - Google Patents

Improvements in the existing procedures and materials for conduct of high gradient magnetic separation (HGMS) are disclosed. Superior superparamagnetic particles, optionally coated with a polysaccharide or other, usually organic, materials can be prepared in uniform compositions with homogeneous magnetizations. The coating can conveniently be conjugated to a specific binding moiety ...

magnetic separation of minerals

US Patent # 4,342,640. Magnetic separation of mineral particles ... Magnetic separation of mineral particles from shale oil Abstract. Oil shale mineral solids are separated from a fluid such as retorted shale oil by heating the ...

US Patent for Magnetic particles Patent (Patent ...

Apr 16, 2009  A magnetic particle comprises a polysaccharide matrix and a plurality of magnetic crystals dispersed in the matrix. A method for making magnetic particles comprises combining a basic solution with a metal ion solution and allowing the metal ions to oxidize to form magnetic crystals, and combining the magnetic crystals with a polysaccharide solution to form the magnetic particles.

US4325821A - patents.google

Disclosed is an improved froth flotation process wherein preselected solid particles are selectively separated under froth flotation conditions as a froth phase from remaining solid feed particles as an aqueous phase in the presence of a collector amine. Such improvement comprises conducting said froth flotation in the presence of an effective proportion of an amine oxide promoter.

Separation of Fine Mineral Particles by Selective Magnetic ...

Separation of Fine Mineral Particles by Selective Magnetic Coating Anastassakis, Georgios N. Abstract. Publication: Journal of Colloid and Interface Science. Pub Date: December 2002 DOI: 10.1006/jcis.2001.7925 Bibcode: 2002JCIS..256..114A full text sources. Publisher ...

Magnetic separation of mineral particles from shale oil ...

The magnetic separation techniques of this invention can achieve 50 weight percent and even 90 weight percent or higher separation efficiency in a single stage, when about 90% by weight of the mineral particles in the fluid are smaller than 10 micrometers in diameter, even when more than 50, 60 or 70% smaller than 5 micrometers in diameter.

Magnetic separation of particulate mixtures - Maryland ...

The method of claim 10 wherein the magnetic separation is a wet separation whereby mineral particles wetted with magnetic fluid are recovered from the water suspension. 12. The method of claim 10 wherein the ore suspension is de-watered and dried to a free-flowing state after being contacted with the magnetic fluid and wherein the dried ore is ...

MINERALS SEPARATION NORTH AMERICAN CORPORATION v.

1. This is a suit for the infringement of Letters Patent, No. 962678, Claims 1 and 2, brought by the petitioner in the District Court of Maine, where the petitioner prevalid (23 F.(2d) 931), the Court acting partly in deference to the decision of the Circuit Court of Appeals for the Third Circuit in Miami Copper Co. v. Minerals Separation, Ltd., 244 F. 752.

US8231008B2 - Column flotation cell for ... - Google Patents

An apparatus for separating a mineral from a slurry of mineral and impurities, including a fluid vessel having a first, open end and a second end and a feed well disposed near the first end. The feed well has a first, open end, for receiving the slurry, and a second end. At least one first member is received through the first ends of the vessel and the feed well for providing aerated water ...

Patents Assigned to Cidra Corporate Services, Inc - Justia ...

Jan 22, 2014  Type: Grant. Filed: January 22, 2014. Date of Patent: February 16, 2021. Assignee: CiDRA Corporate Services Inc. Inventor: Alan D. Kersey. Recovery media for mineral processing. Patent number: 10835905. Abstract: An engineered collection medium for use in mineral separation is described. The engineered collection medium has a solid phase body ...

Magnetic Separator - an overview ScienceDirect Topics

Barry A. Wills, James A. Finch FRSC, FCIM, P.Eng., in Wills' Mineral Processing Technology (Eighth Edition), 2016 13.4.3 Material Transport in Magnetic Separators. Commercial magnetic separators are continuous-process machines, and separation is carried out on a moving stream of particles passing into and through the magnetic field. Close control of the speed of passage of the particles ...

Magnetic separation - Wikipedia

Magnetic separation is also used in situations where pollution needs to be controlled, in chemical processing, as well as during the benefaction of nonferrous low-grade ores. Magnetic separation is also used in the following industries: dairy, grain and milling, plastics, food, chemical, oils, textile, and more. Magnetic cell separation

Patents Assigned to Advanced Minerals Corporation - Justia ...

Sep 28, 2004  Assignee: Advanced Minerals Corporation. Inventors: Scott K. Palm, Timothy R. Smith, Jerome C. Shiuh, John S. Roulston. Perlite products with controlled particle size distribution. Patent number: 6712898. Abstract: Expanded perlite products having controlled particle size distribution, methods of producing the expanded perlite products, and ...

(PDF) Comminution in mineral processing

The aim of mineral processing is to get the mineral from rock or Ore that has good economic value in the market. Generally, the ability of treating crude material from excavation into mineral ...

Magnetic separation of serpentinite mining residue as a ...

Jul 10, 2015  The magnetic separation of serpentinite mining residue was studied. • The non-magnetic fraction can be used for mineral carbonation. • The process removed about 71% of the iron impurities from the initial feed. • The optimum magnetic field is 7.5 × 10 3 T. • The concentration of iron oxide in the magnetic fraction is 79%.

Apparatus for magnetic separation of paramagnetic and ...

@article{osti_6742302, title = {Apparatus for magnetic separation of paramagnetic and diamagnetic material}, author = {Doctor, R D}, abstractNote = {The present invention relates to methods and apparatus for segregating paramagnetic from diamagnetic particles in particulate material and, in particular, to the open gradient magnetic separation of ash producing components and pyritic sulfur

Surface magnetization of siderite mineral - ScienceDirect

Nov 01, 2012  1. Introduction. Magnetic separation in mineral processing is based on magnetic properties of constituent mineral particles. In some cases, natural magnetism of the minerals is very weak or there is no obvious magnetic difference among different minerals, and consequently it is very difficult to get good enrichment or separation.

Separation of cobaltite - CALIFORNIA RESEARCH CORP

Separation of cobaltite - CALIFORNIA RESEARCH CORP. Title: Separation of cobaltite. United States Patent 2403640. Abstract: This invention relates to the separation of cobaltite from minerals containing it. Cobaltite, a mineral of the approximate composition CoAsS, is an available cobalt mineral from which the pure metal or its compounds can be ...

Magnetic separation of particulate mixtures - Maryland ...

The method of claim 10 wherein the magnetic separation is a wet separation whereby mineral particles wetted with magnetic fluid are recovered from the water suspension. 12. The method of claim 10 wherein the ore suspension is de-watered and dried to a free-flowing state after being contacted with the magnetic fluid and wherein the dried ore is ...

MINERALS SEPARATION NORTH AMERICAN CORPORATION v.

1. This is a suit for the infringement of Letters Patent, No. 962678, Claims 1 and 2, brought by the petitioner in the District Court of Maine, where the petitioner prevalid (23 F.(2d) 931), the Court acting partly in deference to the decision of the Circuit Court of Appeals for the Third Circuit in Miami Copper Co. v. Minerals Separation, Ltd., 244 F. 752.

Magnetic separation - Wikipedia

Magnetic separation is the process of separating components of mixtures by using magnets to ... magnets are situated inside two separator drums which bear liquids. Due to the magnets, magnetic particles are being drifted by the movement of the drums. ... William H (1995). "Trends in patent renewals at the United States patent and trademark ...

Magnetic separation of material using eddy currents - DE ...

1. A method of separating particulate material according to the electrical conductivity of the particles of the material, wherein the method comprises providing first means (20) to generate a magnetic field and subjecting the particles (32) to the field which by interaction with eddy currents in the particles (32) causes movements dependent upon electrical conductivity, of electrically ...

Separation of cobaltite - CALIFORNIA RESEARCH CORP

Separation of cobaltite - CALIFORNIA RESEARCH CORP. Title: Separation of cobaltite. United States Patent 2403640. Abstract: This invention relates to the separation of cobaltite from minerals containing it. Cobaltite, a mineral of the approximate composition CoAsS, is an available cobalt mineral from which the pure metal or its compounds can be ...

Magnetic separation - SlideShare

Jun 16, 2013  Magnetic separation 1. A DISCUSSIONONMAGNETIC SEPARATIONPresented By:Gulfam Hussain 2. INTRODUCTION Magnetic separators are used to separateeither valuable minerals from non-magneticgangue, e.g. magnetite fromquartz, or magnetic contaminants Or other valuable minerals from the non-magnetic values. All materials are affected in some way whenplaced

Patents Assigned to Advanced Minerals Corporation - Justia ...

Sep 28, 2004  Assignee: Advanced Minerals Corporation. Inventors: Scott K. Palm, Timothy R. Smith, Jerome C. Shiuh, John S. Roulston. Perlite products with controlled particle size distribution. Patent number: 6712898. Abstract: Expanded perlite products having controlled particle size distribution, methods of producing the expanded perlite products, and ...

Froth flotation - Wikipedia

Froth flotation is a process for selectively separating hydrophobic materials from hydrophilic.This is used in mineral processing, paper recycling and waste-water treatment industries. Historically this was first used in the mining industry, where it was one of the great enabling technologies of the 20th century.

Separation and recovery of bubble particle aggregates by ...

WO 2012/061897 PCT/AU2011/001460 1 Separation and Recovery of Bubble Particle Aggregates Summary - The present invention relates to a novel approach to the use of gas bubble hydrophobic particle 5 aggregates to give improved separation and recovery of valuable minerals from a

(PDF) Comminution in mineral processing

The aim of mineral processing is to get the mineral from rock or Ore that has good economic value in the market. Generally, the ability of treating crude material from excavation into mineral ...

Paul J. Rothman Inventions, Patents and Patent ...

Abstract: Apparatus is provided for mineral separation, featuring a mixer configured to mix a mineral bearing ore feed and hydrophobic media particles, the mineral bearing ore feed being crushed and ground and having an ore particle size distribution characterized by about 50% or more of particles at a size of about 150 ?m or less with finer ...

(12) United States Patent (10) Patent N0.: US 7,992,718 B1 ...

(12) United States Patent (10) Patent N0.: US 7,992,718 B1 ... among solid minerals particles can be natural, or can be induced by the use of chemical additives. The buoyancy of the ... the process is separation of particles having the strongest hydrophobicity. One example is an application intended to

LandOfFree - Inventor - Continuous filament matrix for ...

C210S695000, C210S456000, C209S224000, C209S231000, C209S232000. Reexamination Certificate. active. 06180005. ABSTRACT: FIELD OF THE INVENTION This invention relates to magnetic separation devices, in particular to the type of device in which magnetizable particles are removed from a stream of material by feeding the stream on or through stationary magnetic material, the magnetizable particles ...

US Patent Application for Manufacture of sodium ...

May 18, 2001  U.S. Pat. No. 6,026,965 relates to the recovery of mineral particles, metal particles over small precious stones from a aqueous slime associate with an ore body or mineral deposit or processing thereof, and U.S. Pat. No. 6,231,767 relates to the treatment of phosphatic waste. The contents of these patents are hereby incorporated herein by ...

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