patent on iron ore processing

patent on iron ore processing

US Patent Application for IRON ORE CONCENTRATION

2013-10-25  US Patent Application for IRON ORE CONCENTRATION PROCESS WITH GRINDING CIRCUIT, DRY DESLIMING AND DRY OR MIXED (DRY AND WET) CONCENTRATION Patent Application (Application #20140117125 issued May 1, 2014) - Justia Patents Search

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Process of making iron from the ore. - Patent US-816142

Process of making iron from the ore. Cite. Download. Patent: US-816142-A: Inventor: AIKEN ROBERT H (US) Assignee: AIKEN ROBERT H (US) Dates: Grant . 1906/03/27. Priority . 1903/06/01. This web page summarizes information in PubChem about patent US-816142-A. This includes chemicals mentioned, as reported by PubChem contributors, as well as other ...

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US4131668A - Iron ore pellet process control - Google

A method for controlling an iron ore pelletizing and pellet processing operation by evaluating the results of the on-stream analysis of the apparent specific gravity or apparent density distributions of the dry and fired pellet samples which permits the operator of the process to determine if any changes in the process control factors are required in order to impart into the fired pellets an ...

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Brazilian company patents innovative dry iron ore ...

2016-5-10  New plants are in the process of getting environmental licenses in Brazil. In the USA, negotiations to implement the new are underway. Dry iron ore processing. The mining activity produces lots of materials with no commercial value. That is because the iron ore traded in the market must be composed of at least 58% of ore.

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Iron ore concentration process with grinding circuit, dry ...

WO 2014/063211 PCT/BR2013/000411 1 IRON ORE CONCENTRATION PROCESS WITH GRINDING CIRCUIT, DRY DESLIMING AND DRY OR MIXED (DRY AND WET) CONCENTRATION This application claims priority from U.S. Patent Application No. 61/719,143, titled "Specification for Iron Ore (Itabirite) Concentration Process 5 with Milling Circuit and Dry Desliming and Dry or Wet Concentration", filed

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US Patent Application for Use Of Polyols For Improving A ...

2019-6-5  Iron ore often contains considerable amounts of silicates, as for example quartz, which may be in the range of from about 20 to 45 wt.-%. However, the presence of higher contents of silicates has a detrimental effect on the quality of the iron ore, for example in reduction processing in a blast furnace.

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WO1994008055A1 - Iron making process ... - Google Patents

The invention provides a method for both disposing of an environmentally undesirable material comprising petroleum coke and the sulfur and heavy metals contained therein and of providing fuel for a process of making molten iron or steel preproducts and reduction gas in a melter gasifier having an upper fuel charging end, a reduction gas discharging end, a lower molten metal and slag collection ...

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Concentration Process Of Iron Ore Slimes PEREIRA LIMA ...

CONCENTRATION PROCESS OF IRON ORE SLIMES Abstract. The present application relates to a concentration process of iron minerals from ultrafine tailings (slimes) from iron ore processing through reverse flotation with pH between 8.5 and 10.5 with the addition of amide-amine type collector, or further a mixture thereof with traditional cationic collectors (amines), in the absence of any ...

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Process for froth flotation of silicate-containing iron ore

1998-11-25  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 polyamine, which contain an aliphatic hydrocarbon group having 6-22 carbon atoms in a weight ...

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iron ore processing cost patent

About Us. Since its establishment in 1987, we has always focused on the RD and manufacturing of large-scale equipment required for national infrastructure construction projects such as mines, buildings, and energy. And provide professional EPC one-stop solutions and mature supporting equipment, from crushing, sand making to grinding, equipment ...

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Process of making iron from the ore. - Patent US-816142

Process of making iron from the ore. Cite. Download. Patent: US-816142-A: Inventor: AIKEN ROBERT H (US) Assignee: AIKEN ROBERT H (US) Dates: Grant . 1906/03/27. Priority . 1903/06/01. This web page summarizes information in PubChem about patent US-816142-A. This includes chemicals mentioned, as reported by PubChem contributors, as well as other ...

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US Patent Application for IRON ORE CONCENTRATION

2013-10-25  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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US Patent for Process and system for extraction of iron ...

The iron ore contains 72.3 percent by weight of iron, as indicated from x-ray fluorescence spectroscopy data. The EDTA and iron ore are heated to reflux in 150 milliliters of water. A slow reaction first takes place, for example over a six (6) hour time period, during which a small amount of iron dissolves from the ore.

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BRPI0417529B1 - process for producing iron ore ...

BRPI0417529B1 - process for producing iron ore agglomerates using sodium silicate containing binder. - Google Patents process for producing iron ore agglomerates using sodium silicate containing binder. ... 2004-12-08 Priority to PCT/EP2004/014017 priority patent/WO2005059186A1/en 2007-03-13 Publication of BRPI0417529A publication Critical ...

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US3337328A - Iron ore beneficiation process - Google

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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US2799572A - Iron ore pelletizing process ... - Google

US2799572A US346786A US34678653A US2799572A US 2799572 A US2799572 A US 2799572A US 346786 A US346786 A US 346786A US 34678653 A US34678653 A US 34678653A US 2799572 A US2799572 A US 2799572A Authority US United States Prior art keywords refractory pellets bodies iron ore fines Prior art date 1953-04-03 Legal status (The legal status is an assumption and is not a legal

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Iron ore pellet process control - Nippon Steel Corporation

A method for controlling an iron ore pelletizing and pellet processing operation by evaluating the results of the on-stream analysis of the apparent specific gravity or apparent density distributions of the dry and fired pellet samples which permits the operator of the process to determine if any changes in the process control factors are required in order to impart into the fired pellets an ...

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US Patent Application for Use Of Polyols For Improving A ...

2019-6-5  Iron ore often contains considerable amounts of silicates, as for example quartz, which may be in the range of from about 20 to 45 wt.-%. However, the presence of higher contents of silicates has a detrimental effect on the quality of the iron ore, for example in reduction processing in a blast furnace.

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US20070157761A1 - Google Patents

US20070157761A1 US11/329,846 US32984606A US2007157761A1 US 20070157761 A1 US20070157761 A1 US 20070157761A1 US 32984606 A US32984606 A US 32984606A US 2007157761 A1 US2007157761 A1 US 2007157761A1 Authority US United States Prior art keywords iron induction furnace ore iron ore furnace Prior art date 2006-01-11 Legal status (The legal status is

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iron ore processing cost patent

About Us. Since its establishment in 1987, we has always focused on the RD and manufacturing of large-scale equipment required for national infrastructure construction projects such as mines, buildings, and energy. And provide professional EPC one

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IRON ORE REDUCING PROCESS AND APPARATUS, USING

OSTI.GOV Patent: IRON ORE REDUCING PROCESS AND APPARATUS, USING NUCLEAR HEAT. IRON ORE REDUCING PROCESS AND APPARATUS, USING NUCLEAR HEAT. Full Record; Other Related Research; Authors: Schenck, H Publication Date: Mon Jul 01 00:00:00 EDT 1968 Research Org.: Originating Research Org. not identified

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Ore reduction process and titanium oxide and iron ...

FIELD: beneficiation of ores. SUBSTANCE: invention is referred to beneficiation of ores containing titanium oxides, more specifically, to energy-saving process on the revolving hearth for extraction of easily separable metallic iron and titanium oxides from low-grade ore reduction products.The technique includes the following stages: (a) provision of ore containing iron oxide (III) and ...

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BETHLEHEM PATENTS IRON ORE PROCESS - The New

2021-8-21  BETHLEHEM PATENTS IRON ORE PROCESS. Oct. 13, 1961. Credit... The New York Times Archives. See the article in its original context from October 13, 1961, Section BUSINESS FINANCIAL, Page 51 Buy ...

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Process for production of iron - Patent CA-2119448-C -

CA-2119448-C chemical patent summary.

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Procedure for processing oxidised nickel-, cobalt-, iron ...

There is a method of processing of laterite Nickel-cobalt ore (WO 2007/117169, 000 GEOFEST, 18.10.2007), by which it is dried, crushed and granularit with sulfuric acid when the flow rate of 0.47-0.52 in t/t of ore.

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Direct Reduction of Iron: A Review on Midrex and Hyl

Ironmaking is the major energy consuming and CO2-emmiting step in steel production. Direct reduction processes are an alternative to the traditional blast furnace because of the use of H2 in the reducing gases which generate less CO2. There are two main technologies for direct reduction of iron

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Amenability for processing of oolitic iron ore concentrate ...

2013-6-1  The oolitic gravity magnetic (GM) iron concentrate was supplied by the Lisakovsky iron ore beneficiation plant in Kazakhstan. The plant flowsheet involves ore sieving at 1.6 mm and desliming with further processing through gravity (jigging) and magnetic (low and high intensity) separation stages.

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IRON ORE PROCESSING (MINERALOGY PTY. LTD.)

2021-9-7  The Iron Ore Processing (Mineralogy Pty. Ltd.) Agreement Amendment Bill 2020 amends the Iron Ore Processing (Mineralogy Pty. Ltd.) Agreement Act 2002. PRELIMINARY . 1 Short Title . Clause 1 provides that the Bill, once enacted, will be known as the . Iron Ore Processing (Mineralogy Pty. Ltd.) Agreement Amendment Act 2020. 2 Commencement

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Emerging Technologies for Iron and Steelmaking

The iron and steel industry has undergone a technological revolution in the last 40 years. In a relatively short time, the North American industry has observed the complete disappearance of basic open hearth processing, as well as the wide spread adoption of continuous casting and the near complete shift of long product production to the electric arc furnace sector.

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Iron Extraction From Oolitic Iron Ore by a Deep Reduction ...

2011-8-1  As shown in Fig. 3, the iron grade increases continuously, but the highest value of the recovery rate appears at Issue 8 Iron Extraction From Oolitic Iron Ore by a Deep Reduction Process 11 100 95 5 4 8 90 85 90 % Y - B Recovery rate H e E b E - -80 C - . -70 Fig. 3 Effect of roast temperature on iron grade and iron recovery rate 1200 'C. Above ...

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