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patent of iron ore process

US Patent Application for IRON ORE CONCENTRATION PROCESS

Oct 25, 2013· The present invention discloses an advantageous and effective process for the concentration of iron ores, which can be fully dry or mixed, part of the process being dry, part wet. The invention thereby improves process efficiency as a whole by increasing recovery of concentrators and increasing the useful life of the mines.

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WO2014063211A1 Iron ore concentration process with

The present invention discloses an advantageous and effective process for the concentration of iron ores, which can be fully dry or mixed, part of the process being dry, part wet, such enhancing the process efficiency as a whole by increasing recovery of concentrators and

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US3337328A Iron ore beneficiation process Google Patents

US3337328A US376338A US37633864A US3337328A US 3337328 A US3337328 A US 3337328A US 376338 A US376338 A US 376338A US 37633864 A US37633864 A US 37633864A US 3337328 A US3337328 A US 3337328A Authority US United States Prior art keywords concentrate iron separation ore silica Prior art date 1964-06-19 Legal status (The legal status is an assumption and is not a legal

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US4405588A Process of removing iron Google Patents

A process of removing iron impurities from ores, particularly useful for removing stains of iron impurities adhered to silica sand particles, comprises grinding the ore, washing and desliming the ground ore to remove the major part of the clay-type binder, attrition-scrubbing the deslimed particles to release further amounts of binder therefrom, washing and desliming to remove said binder

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US2799572A Iron ore pelletizing process Google Patents

US2799572A Iron ore pelletizing process and product Google Patents Iron ore pelletizing process and product Download PDF Info Publication number iron ore fines Prior art date 1953-04-03 Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as

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Microbial reduction of iron ore (Patent) DOE Patents

Abstract. A process is provided for reducing iron ore by treatment with microorganisms which comprises forming an aqueous mixture of iron ore, microorganisms operable for reducing the ferric iron of the iron ore to ferrous iron, and a substrate operable as an energy source for the microbial reduction; and maintaining the aqueous mixture for a period of time and under conditions operable to

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WO2014063211A1 Iron ore concentration process with

The present invention discloses an advantageous and effective process for the concentration of iron ores, which can be fully dry or mixed, part of the process being dry, part wet, such enhancing the process efficiency as a whole by increasing recovery of concentrators and

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Process for producing sintered iron ore product Nippon

We claim: 1. A process for producing a sintered iron ore product comprising sintered iron ore material and unmelted iron scrap, said process comprising the steps of: in the production of a sintered iron ore using a downward suction sintering machine, either adding an iron scrap to a raw sintering iron ore to provide a raw mix which is placed on a pallet to form a packed bed or alternatively

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Microbial reduction of iron ore (Patent) DOE Patents

Abstract. A process is provided for reducing iron ore by treatment with microorganisms which comprises forming an aqueous mixture of iron ore, microorganisms operable for reducing the ferric iron of the iron ore to ferrous iron, and a substrate operable as an energy source for the microbial reduction; and maintaining the aqueous mixture for a period of time and under conditions operable to

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Process for froth flotation of silicate-containing iron ore

United States Patent 6076682 . Abstract: The present invention relates to a process for enriching an iron mineral from a silicate-containing iron ore by carrying out, at a pH of 8-11, a froth flotation in the presence of a depressing agent for the iron mineral and a collecting agent containing a combination of an ether monoamine and an ether

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WO2009109024A1 Binder composition for pelletizing iron

The present invention refers to a binding composition containing bentonite for use in binding finely ground iron ore. The composition of the invention comprises bentonite and molasses. The invention also refers to process for preparing iron ore pellets wherein a composition comprising bentonite and molasses is

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Microbial reduction of iron ore (Patent) DOE Patents

Abstract. A process is provided for reducing iron ore by treatment with microorganisms which comprises forming an aqueous mixture of iron ore, microorganisms operable for reducing the ferric iron of the iron ore to ferrous iron, and a substrate operable as an energy source for the microbial reduction; and maintaining the aqueous mixture for a period of time and under conditions operable to

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Ore pretreatment process EXXON RESEARCH AND

While the process of the present invention has been described in terms of preparing a feed material for a fluidized iron ore reduction process which contains below 0.2 wt. % sulfur, and below 0.10 wt. % phosphorus, it can be readily appreciated by those skilled in the art that the process is equally adaptable for preparing ore concentrates for

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Anthony Owen FILMER Inventions, Patents and Patent

Abstract: THIS invention relates to an integrated process for recovering the valuable iron fraction from low grade iron ore, including the steps of: comminution 14 and classification 36/39 to obtain a classified fraction suitable for coarse flotation and classified fraction suitable for fine beneficiation; subjecting the fraction suitable for coarse flotation to coarse flotation 40 to obtain

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Patents Assigned to Process Research Ortech, Inc. Justia

Mar 26, 2014· Abstract: A process for leaching a value metal from a titaniferous ore material comprising the step of leaching the ore material at atmospheric pressure with a lixiviant comprising magnesium chloride and hydrochloric acid is disclosed. Iron and titanium are leached into solution. Iron in the ferric state may be separated from titanium in solution using extraction with alkyl ketone.

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William Kelly (inventor) Wikipedia

William Kelly (August 21, 1811 February 11, 1888), born in Pittsburgh, Pennsylvania, was an American inventor.He is credited with being one of the inventors of modern steel production, through the process of injecting air into molten iron, which he experimented with in the early 1850s. A similar process was discovered independently by Henry Bessemer and patented in 1855.

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Bessemer process Wikipedia

The Bessemer process was the first inexpensive industrial process for the mass production of steel from molten pig iron before the development of the open hearth furnace.The key principle is removal of impurities from the iron by oxidation with air being blown through the molten iron. The oxidation also raises the temperature of the iron mass and keeps it molten.

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Hazer Group obtains patents for its hydrogen and graphite

Dec 17, 2018· Technology development company Hazer Group (ASX: HZR) has been granted two innovation patents and had the application for its first Australian patent accepted in relation to its low-emission hydrogen and graphite production process.. The company today announced acceptance by the Australian patent office of an application covering aspects of its Hazer Process, with the

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