US359085A

A magnetic ore-separator for an admixture of gold, iron, &c., or other ore, consisting of a rotating conical table of non-magnetic material, magnets thereunder producing fields of force for said table, a stationary inclined hood above the conical table about its shaft, two col lars surrounding the latter, the outer one of which is perforated ...

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US Patent Office issues Patent #10065197

On Sept 4, 2018 the US Patent and Trademark Office has issued a patent #10065197 for the GOLDROP. PATENT IS APPROVED. Social. Goldrop is now on Facebook. Flour gold floating on water recovered by the GOLDROP! ... 175 mesh Gold recovered from black sand by the goldrop pay dirt/gold separating processor.

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Magnetic Ore Separator

In examining the results of separation, we find that the heads compose one-half of the original material by weight, and carry 67 per cent, of iron, or 92.5 of magnetic oxide, equal to 46.3 out of the original 48.3 in the crude ore, while the tails contain the remainder, which is 2 per cent, of magnetic oxide out of the original 48.3 in the ...

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US Patent for Thortveitite ore beneficiation process Patent (Patent

A thorteveitite ore beneficiation process which comprises comminuting the ore by wet autogenuous grinding to substantially liberate the thortveitite contained therein, and passing the comminuted ore through a nonuniform magnetic field to produce a concentrate and a tailing, the concentrate containing a substantially greater percentage of thortveitite than the ore.

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A systematic review of sustainable gold extraction from raw ores …

This entails, firstly, the gold being liberated by size reduction, using jaw/cone crushers and mills. Valuable components can then be physically separated from tailings, using gravitational processes, flotation, optical sorting, magnetic and electrostatic separation, depending on ore characteristics (Ventura et al., 2018).

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About Us

Introduction Xi'an Desen Mining Machinery & Equipment Co., LTD is located in Hi-tech Development Dist., Xi'an, Shaanxi, China. Xi'an Desen Mining Machinery & Equipment Co., LTD is a professional manufacturer of mining equipment which devote to built the plant within 10,000ton/day, including crushing, screening, conveying, Feeding, grinding, grading, mixing, …

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U.S. Patent Application for PROCESS FOR DRY …

Systems and methods for the beneficiation of fine and very fine particles of iron ore are disclosed. The system includes a first triboelectric electrostatic belt-type separator (BSS) which receives and processes a stream of particles with a median particle size (d50) less than 75 microns to generate an iron rich concentrate. The system and method is water-free and …

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CN106583059A

The invention discloses a copper-molybdenum separation electric potential flotation process. The copper-molybdenum separation electric potential flotation process comprises the steps of raw ore crushing, ore grinding, mixed flotation and separation flotation. In the separation flotation step, the ph value of pulp is kept at 10-11, and rougher flotation pulp electric potential is controlled to ...

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Physical separation of iron ore: magnetic separation

For oxidized iron ores, it is usually easier to obtain a high Fe grade concentrate from specularite ore using magnetic separation, because the specular hematite grains are better crystallized. In Fig. 9.12, SLon magnetic separators are used for processing a specularite ore containing about 35% Fe. The run-of-mine ore is mainly composed of ...

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Gold separation using magnets. (A) Ore from the connecting pipe …

(C) A speaker magnet is used to remove iron and magnetic species. (D) After separation, mostly gold remains. from publication: Mercury-free, small-scale artisanal gold mining in Mozambique ...

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US Patent for Gravity--magnetic ore separators Patent (Patent

A gravity-magnetic ore separator for concentrating magnetic or weakly magnetic minerals having a relatively high specific gravity is disclosed. The ore separator utilizes codirectional magnetic …

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Gold Extraction Methods From Three Types of Ore

The gold extraction process mainly depends on the chemical composition of the gold ore, the mineral composition, the gold particle size of the gold, and the requirements of the finished product. Gravity separation, flotation, magnetic separation, cyanidation, these different extraction methods can maximize gold recovery.Whether you are a small miner or a large …

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Mineral separation process of magnetic iron ore

The invention discloses a beneficiation method for a pure magnetic iron ore. A crude ore is sequentially treated according to the steps such as first crushing, first-stage dry-type magnetic dressing, medium crushing, second-stage dry-type magnetic dressing, fine crushing and third-stage dry-type magnetic dressing, fine ore is obtained after a great amount of gangues are …

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Sluice Goose Industries

The GOLDROP with the Magnet Sluice extracts dirty gold, mineralized gold and gold less than 70 microns. In fact, the GOLDROP's Magnet Sluice captures high grade gold ore no other device can! This makes the GOLDROP a valuable tool to extract more gold from the same dirt adding more money into the pockets of artisanal miners while eliminating ...

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The Gravity Spiral Chute: Simplifying Ore Separation …

Industries dealing with minerals like gold, Iron ore, and chromite find it to be a valuable tool as it classifies based on density and aids in easy separation. The integration of additional technologies like magnetic separator …

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Popular Beneficiation Methods For Extracting Gold From Minerals

By selectively separating magnetic materials from gold ore, this method can significantly reduce the amount of waste produced and concentrate the precious metal with a minimal ecological …

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c1002 magnetic iron in china – Grinding Mill China

Iron Ore Magnetic Separation – China Magnetic Separation,Iron … Iron Ore Magnetic Separation, … Newest STB series magnetic separator In China 2)Simple structure, high yield; 3)Covenient operation; 4)Granularity blow 0.5m » Free online chat! Dry Magnetic Separator for Iron from Shandong Huate Magnet … Dry Magnetic Separator for Iron, …

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Gold Ore

Gold ore is a type of ore that contains gold mineralization in its composition. It is a valuable and sought-after metal due to its rarity and beauty, as well as its industrial and economic applications. ... The slurry is then subjected to magnetic separation, which separates the iron oxide minerals from the copper and gold minerals. The ...

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gold ore separation magnets patent

How to Separate Gold From Ore Separating gold from rock ore is a Following magnetic separating gold ore particles were being sent to the Patent US6811031

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Gold Ore Types & Efficient Extraction Techniques

Types of gold ore. 1.Natural gold ore. Features : Gold exists in the form of free (natural gold) or alloys (such as silver-gold ore), often in flake, dendritic, or granular form. ... The ore needs to be separated by magnetic separation …

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DRY MAGNETIC SEPARATION OF MAGNETITE ORES

The relevance of the paper is that dry magnetic separation (DMS) is the main beneficiation method of magnetite ores. The lack of efficient industrial-grade machines and apparatus for separating fine-grained magnetite ores means that DMS is used mainly as a pre-concentration operation for fairly large classes.

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Magnetic Separation in Mining and Mineral Processing

Magnetic separators for the mining and mineral processing sectors are broadly differentiated into two ranges. Commonly early in the process, magnetic separators with a …

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Integrated spin systems for the separation and recovery of gold

A system and method are provided for the extraction of gold and other precious metals and elements from ore, as well as purification of water. Heavy elements are separated from lighter …

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Method for separating titanium, iron ore

The invention belongs to a method for separating iron ore and titanium ore, comprising the steps of crushing, ball milling by one time and two times, magnetic separation with low strength, magnetic separation with high strength, ball milling by the third time, spiral separation and fine selection, magnetic separation with low strength and titanium reselection and the like so as to …

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separating gold from ore – Grinding Mill China

» gold ore separation magnets patent » mining conveyor belt south africa » coal mining methods in ky » how is iron ore concentrated ... Posted at: March 12, 2013 [ 4.9 - 7053 Ratings ] separate gold from pyrite – Manganese Crusher, Manganese Ore …

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CN114042537A

The invention provides a lead-separating collector for lead-zinc-gold-silver sulphide ores, which comprises HQ77 and ethyl xanthate. A lead-zinc gold and silver sulphide ore lead-selecting method comprises the following steps: grinding raw ores of lead-zinc-gold-silver sulphide ores to obtain ore pulp, and adding a zinc blende inhibitor D82, a lead collector HQ77 and ethyl …

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Selective flocculation, magnetic separation, and flotation of ores

Low-grade, finely disseminated, ores that are not readily amenable to conventional flotation can be upgraded by a selective flocculation-magnetic separation-flotation process. Non-magnetic particles in such an ore can be selectively flocculated either by iron particles in the ore that contain residual magnetite or by the addition of a finely ground magnetic concentrate to the ore.

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Thomas Edison's Gamble with Resource Extraction

Edison had long been interested in the challenges of separating metal from earth and rock; in 1879 he organized the Edison Ore Milling Company to commercialize patents for separating the platinum needed for his electric …

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Method of recovering gold from gold ores containing pyrite

[0003] For pretreatment in order to facilitate the gold leaching from sulfide ores, a method of oxidative roasting the sulfide ores is known, and recently a pretreatment of combining the oxidative roasting with the other process has been proposed. For example, in JP-A-2010-235999 (Patent Document 2), the copper sulfide ores is leached at the melting point of sulfur …

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Iron Ore Magnetic Separation

This fact is demonstrated by washing concentrates from the dry magnetic separation, when the iron content was easily raised from 52 to 58 per cent. This suggested using a combined process of dry magnetic separation and of washing the magnetic product in some such apparatus as the Dorr classifier. The objections to this arrangement are:

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