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Patent Of Iron Ore Process

  • Microbial Reduction Of Iron Ore Patent Doe Patents

    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 effect the reduction of the ore.

  • Microbial Reduction Of Iron Ore Patent Doe Patents

    Patent Hoffmann Michael R Pasadena CA Arnold Robert G Pasadena CA Stephanopoulos Gregory Pasadena CA 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

  • Us Patent For Process For The Production Of Iron Oxide

    A process for producing iron oxide fine powder of high purity from an oxide iron ore such as hematite or magnetite by only physical processing is disclosed which comprises the steps of providing a preliminarily ground raw material powder of an oxide iron ore or a mixture thereof having the impurity content in a specific range classifying the raw material iron ore powder under such conditions that fine particles smaller than 10 .mu.m in diameter are removed from the ore

  • Patent Of Iron Ore Process

    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 19530403 Legal status The legal status is an assumption and is not a legal conclusion.

  • Brazilian Company Patents Innovative Dry Iron Ore

    May 06 2016 Owned by the Lorentzen group New Steel has just patented in Brazil and in the United States the creation of the first iron ore tailing processing in the world that is fully dry.

  • Atmospheric Pressure Leach Process For Lateritic Nickel Ore

    Mar 14 2003 Atmospheric pressure leach process for lateritic nickel ore is a Patent located in USA in Chemistry of inorganic compounds Treating mixture to obtain metal containing compound Iron group metal. Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

  • Froth Flotation Of Iron Ores

    Jan 02 2012 Svensson M. Gustafsson J.O. Klingberg A. 2000. Quaternary ammonium compounds for froth flotation of silicates from an iron ore. US Patent 7311206 B1. 17 Wang Y. Ren J. 2005. The flotation of quartz from iron minerals with a combined quaternary ammonium salt. Int. J. Miner. Process. 77 116-122. 18 Gaudin A.M. Fuerstenau D.W. 1955.

  • Pig Iron Manufacturing Process 911 Metallurgist

    Mar 20 2017 Some experimental work performed by the writer in 1911 under a Carnegie Research Scholarship of the Iron and Steel Institute of Great Britain and the work of others serve to show the metallurgical possibilities of the electric furnace for the production of pig steel from ore and whether the process satisfies the five stated requirements.

  • Iron Processing Britannica

    First in 1856 Henry Bessemer patented his converter process for blowing air through molten pig iron and in 1861 William Siemens took out a patent for his regenerative open-hearth furnace.

  • Iron Ore Pelletizing Process An Overview Intechopen

    Jul 11 2018 The iron ore pelletizing process consists of three main steps Pelletizing feed preparation and mixing the raw material iron ore concentrate additivesanthracite dolomiteand binders are prepared in terms of particle size and chemical specifications dosed and mixed together to feed the pelletizing process

  • How Iron Is Made Material Manufacture Making History

    Iron ore is converted into various types of iron through several processes. The most common process is the use of a blast furnace to produce pig iron which is about 92-94 iron and 3-5 carbon with smaller amounts of other elements.

  • Iron Ore Pellets Company Profiles Project Process Patent

    Iron Ore Pellets Company Profiles Project Process Patent If you want to learn about our products please call or write mail consultation. iron ore mining technologies - ilvillaggiocoza. iron ore mining technologi Iron ore Mining Global Mining News Magazine and An iron ore project has been given the all important go ahead for a mining licence

  • Process Of Making Iron From The Ore

    US816142A - Process of making iron from the ore. - Google Patents Process of making iron from the ore. Download PDF Info Publication number . Process of making iron from the ore. Massachusetts Institute Of Technology 1903. 1903-06-01 .

  • 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

  • Us2799572a Iron Ore Pelletizing Process Google Patents

    United States Patent IRON ORE PELLETIZINGPROCESS AND PRODUCT Grover Justin Holt Hibbing Minm and Louis.l. Erch Negaunne Mich. assignors to The Clcveland-Clifis Iron Company Cleveland Ohio.

  • 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 PCTEP2004014017 priority patentWO2005059186A1en 2007-03-13 Publication of BRPI0417529A publication Critical .

  • Us3672579a Process For Beneficiating Magnetite Iron Ore

    - Google Patents A process for upgrading low-grade magnetite-containing iron ore with minimum fine grinding. The dry ore is first comminuted to between about three-fourths inch and 10 mesh particle.

  • Concentration Process Of Iron Ore Slimes Patent Application

    U.S. patent application number 16753276 was filed with the patent office on 2021-03-11 for concentration process of iron ore slimes.The applicant listed for this patent is Vale S.A.. Invention is credited to Klaydison CARLAILE SILVA Mauricio CURI SEGATO Neymayer PEREIRA LIMA.

  • Us Patent For Process For The Production Of Iron Oxide

    A process for producing iron oxide fine powder of high purity from an oxide iron ore such as hematite or magnetite by only physical processing is disclosed which comprises the steps of providing a preliminarily ground raw material powder of an oxide iron ore or a mixture thereof having the impurity content in a specific range classifying the raw material iron ore powder under such conditions that fine particles smaller than 10 .mu.m in diameter are removed from the ore

  • Process For Producing Sintered Iron Ore Product Nippon

    Apr 29 1994 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

  • Iron Ore Concentration Process With Patent Attorney

    WO 2014063211 PCTBR2013000411 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. 61719143 titled Specification for Iron Ore Itabirite Concentration Process 5 with Milling Circuit and Dry Desliming and Dry or Wet Concentration filed

  • Direct Reduction Of Iron A Review On Midrex And Hyl Patents

    A review on the patents published by the two companies was performed in this work and it was possible to describe the functioning of both process the developments over the years and to distinguish the differences. Both process are based on shaft furnaces where reducing gases flow in countercurrent to iron ore pellets heating them and reducing .