Method of pyrrhotite-bearing ores flotation

The invention relates to the field of mineral processing and may be used in the processing of mineral raw materials containing pyrrhotite. In beneficiation of copper, copper-zinc and copper-Nickel ores and industrial raw materials containing pyrrhotite, there is a need for flotation separation of sulfides of copper and zinc from harmful impurities - pyrrhotite.

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CPC Scheme - B03D FLOTATION; DIFFERENTIAL SEDIMENTATION

Flotation machines (devices for feeding measured quantities of reagents B01J 4/02; flotation apparatus for enzymology or microbiology C12M 1/09) [2013-01] B03D 1/1406 { with special arrangement of a plurality of flotation cells, e.g. positioning a flotation cell inside another } [2013-01]

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flotation process for separating silica from feldspar

Flotation Process For separating silica From Feldspar. Patent US6098810 Flotation process for separating silica A separation process is provided for treating a feed material comprising silica, feldspar, and metal impurities, including at least one of mica, iron impurities, or. separation process to remove feldspar and iron from silica ,

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Fluorite Flotation Separation-Ore Beneficiation,Flotation ...

Fluorite Flotation Separation. Fluorite, also known as fluorspar, is a major source of industrial fluoride elements, 20 kinds of the world, one of the important non-metallic mineral raw materials, fluorite is widely used in the metallurgy of aluminum, glass, ceramic, cement chemical industry.

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Fluorite Flotation Separation-Ore Beneficiation,Flotation ...

A flotation of fluorite ore processing method, it is granted a patent improvements 87,105,202 No.Flotation fluorite mineral acid jacketed plus synergist modifier. Any one of the water glass of the present invention, the addition of acid and the acid composition of one or more soluble salt mixture composition for the adjusting agent, and the ...

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US Patent for Flotation process Patent (Patent # 5,879,542 ...

Disclosed is a process for the flotation of a mineral concentrate comprising the steps of forming an aqueous slurry of a milled mineral ore containing particles of a desired mineral species and adding a flotation reagent which causes a desired variation in the flotation tendency of the desired mineral species present within the slurry so as to increase the efficiency of separation of that ...

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METHOD FOR REMOVING POLLUTING SUBSTANCES FROM …

The injection of oxygen to a flotation basin in the process of removing pollutants from water streams comprising applying a flocculating or coagulating agent to a portion of the water stream, and creating a flocculation basin along the water stream. The injection of oxygen includes submitting the aggregate particles with higher dimension and density located upstream of the portion of the water ...

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Flotation process - Free Patents Online

Mar 09, 1999· United States Patent 5879542 . Abstract: Disclosed is a process for the flotation of a mineral concentrate comprising the steps of forming an aqueous slurry of a milled mineral ore containing particles of a desired mineral species and adding a flotation reagent which causes a desired variation in the flotation tendency of the desired mineral ...

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flotation process for high iron bauxite - jillscityspa.nl

Flotation Process For High Iron Bauxite. Flotation techniques for separation of diaspore from, iron impuriti It is known that high grade bauxite, with A/S greater than 8, can be processed directly by . Live Chat; Patent US3990965 - Flotation process for the ,

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US4394257A - Froth flotation process - Google Patents

A process for the recovery of mineral values by froth flotation in an aqueous medium employing a novel frother. Frothers prepared by Michael addition between alpha, beta-unsaturated ethylenic compounds and either alcohols, amines or mercaptans or by the condensation of HCN, aldehydes/ketones with either alcoholics, amines or mercaptans have been found to be effective in the froth flotation ...

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Floatation Patent GB 21,948 (1898) - Today In Sci

Process for separating the metallic from the rocky constituents of ore by mixing the pulverised ore first with water in considerable quantity, then adding to the mixture an oil of the kind described, which adheres to the metallic constituents but not to the wet rocky constituents, allowing the water carrving the rocky material to subside while ...

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James M. Hyde - Wikipedia

James M. Hyde was born June 25, 1873, in Mystic Bridge, Connecticut, the son of Rev. William Penn Hyde and Seraphine Smith Carr.His mother was a Mayflower descendant. When he was age eight, his father moved the Hyde family of eight children to Santa Cruz, California, and, later, to Palo Alto, California. As the youngest son, not expected to enter the ministry, James studied mining engineering ...

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US4488959A - Scheelite flotation process - Google Patents

A process for separating scheelite from gange wherein the ore is ground with 0.4 to 10 grams of alkali metal carbonate per kg. of ore, forming a pulp and removing sulfide minerals from pulp liquor. Carrying out froth floatation in the presence of paraffin oil, 0.1-0.4 gram of fatty acid per kg. of ore and 3.2-5.5 grams of sodium silicate per kg. of ore wherein the weight ratio of paraffin oil ...

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Dissolved Air Flotation Water Treatment | Compact ...

Gas Flotation is a well-proven method of oil recovery in water treatment applications. As well as offering standard horizontal and vertical Induced Gas Flotation (IGF) and Dissolved Air Flotation (DAF) units, Process Group has significantly improved traditional technology with its patented bubble generation technology and patented Compact Flotation Units (CFU).

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To Float or Sink: A Brief History of Flotation Milling

through the process of flotation. The history of the flotation process began in the nineteenth century, but flotation is considered the most important devel­ opment of the twentieth-century mining and milling industry. Flotation Flotation is an innovative processing method for separating valuable minerals locked in waste rock. It

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Ester-alcohol frothers for froth flotation of coal (Patent ...

This patent describes a froth flotation process wherein solid coal particles are selectively separated under coal froth flotation conditions as a froth phase from remaining solid feed particles as an aqueous phase in the presence of a coal particle collector and an alcohol frother.

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1 Froth Flotation – Fundamental Principles

1 Froth Flotation – Fundamental Principles Froth flotation is a highly versatile method for physically separating particles based on differences in the ability of air bubbles to selectively adhere to specific mineral surfaces in a mineral/water slurry. The particles with attached air …

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US Patent for Flotation process Patent (Patent # 5,074,993 ...

In the past, procedures such as the Inco-developed cyanide process, Canadian Patent No. 1,062,819 and the SO.sub.2 /air process (patent pending) have been developed to maximize rejection of Px during flotation. These processes in general have been successful but often require extensive conditioning of mineral pulps to be reasonably operable.

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Analytics for US Patent No. 4986361, Well casing flotation ...

Well casing flotation device and method Number of patents in Portfolio can not be more than 2000 ... The flotation method reduces insertion drag and the related chance of a differentially stuck casing, and avoids the separate removal steps required by current flotation techniques. ... To add this patent to one, or more, of your portfolios ...

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flotation process feldspar - YouTube

May 31, 2018· From the completed flotation process, the feldspar float concentrate is dewatered to 5 to 9 percent moisture.froth flotation of feldsparFlotation Process Foam Feldspar process is specifically ...

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Dissolved Air Flotation Equipment DAF Systems - iwwsllc.com

Your Processes The first component of an IWWS system is your plant process. Your operations, processes conducted, sources of wastewater, space constraints, utilities availability, discharge points and water reuse needs dictate our system design. We learn this information through on-site visits, lab testing and on-site full-scale pilot studies.

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US Patent # 4,952,307. Recovery of elemental sulphur from ...

I claim: 1. A process for the recovery by a combined coarse and fine froth flotation of elemental sulphur, in the oil and gas industry and in other industries, from the complex sulphur agglomerate, reject by-product of hot melting processes, or otherwise referred to as "sulphur crete melt residue", which after some processing is to be mixed with a sized feedstock selected from:

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Ambient froth flotation process for the recovery of ...

The patent describes the primary separation step of the hot water process for extracting bitumen from tar sand in primary separation vessel. The bitumen floats upwardly in a tar sand slurry to form a froth layer, the coarse solids drop to form a tailings layer, and a …

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US Patent # 4,362,552. Froth flotation of ores - Patents.com

Froth flotation of ores Abstract. Beneficiation of metallic ores selected from the group of zinc, bismuth, cobalt, nickel, titanium, zirconium, thorium, chromium, molybdenum, wolfram, and uranium, by froth flotation process using commercial amines in conjunction with oxalic acid or alkali oxalates to obtain pure concentrates of said metal values comprises; adding to a water suspension of ...

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History of Flotation Patents - Mineral Processing & Metallurgy

This is the part of the subject of which we have heard the most; indeed, until recently the literature of the flotation process was closely identified with the records of patent litigation. That is why the scientific principles are as yet so little understood and the technology of the process has made such scanty progress. The aim of a patent specification is to disclose just enough to prove ...

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The Flotation Process - Today In Sci

The flotation process depends on the properties of minerals by which their surfaces differ in the degree by which their surfaces can be wetted, and takes best advantage of such differences by suitable choice of the solution. ... Flotation Process Patent 1898 by Alexander and Francis Elmore

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froth flotation passed froth flotation patents

froth flotation process capacity sri lanka; technical drawing of froth flotation process; froth flotation process spares part; design of froth floatation unit for copper ore; 2016 best mining new copper ore froth flotation machines; yuhui froth cell flotation machine for gold with best design; high efficient mineral mining copper froth ...

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((flotation)and(bubble)and(water)) - ecaa.ntu.edu.tw

Flotation process for removal of precipitates from electrochemical chromate reduction unit This invention is an improved form of a conventional electrochemical process for removing hexavalent chromium or other metal-ion contaminants from cooling-tower blowdown water. In the conventional process, the contaminant is reduced and precipitated at an ...

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Froth Flotation Process - Mineral Processing & Metallurgy

FROTH FLOTATION “So many variables influence flotation that it will be long before every one of them can be investigated and its influence on the process determined.” The froth flotation process was patented by E. L.Sulman, H. F. K. Pickard, and John Ballot in 1906, 19 years after the first cyanide process patents of MacArthur and the Forests.

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Froth Flotation-related patent applications

Froth Flotation-related patent application list. A water extraction process for separating bitumen from tar sands comprises slurrying tar sands in water, mixing the aqueous slurry with a magnetic substance for a time sufficient to release bitumen from tar sands and to uniformly disperse the magnetic substance with the bitumen, and subjecting the resulting slurry to froth flotation for recovery ...

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Analytics for US Patent No. 4867867, Recovery in the ...

This invention relates to a method of enhanced recovery of phosphate in the double flotation process for the benefication of phosphate ore, more particularly to the use of pH modifiers-silica depressants: sodium silicate; soda ash (Na.sub.2 CO.sub.3); or soda silicate and soda ash, alone or in combination with one or more ingredients selected from the group consisting of: starch, dextrin ...

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Flotation Reagent-Technology, Patents, Process, Product ...

Flotation Reagents. Process. Preparation of New Flotation Reagents. Process Requirement of flotation Reagent. Project. Development of a lower-pH copper flotation reagent system. Patents. Selective Flotation Agent and Flotation Method. Phenolaldimines as froth flotation reagents. Differential flotation reagent for molybdenum separation.

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US Patent # 5,693,222. Apparatus and method for improved ...

Apparatus and method for improved high-efficiency dissolved air flotation fluid processing Abstract. A dissolved gas flotation tank system is disclosed which is configured to provide educted gas or air into recirculated effluent fluid from the tank which includes a pump system which increases the dissolution rate of gas into the effluent fluid thereby eliminating the need for retention tanks ...

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