the patent for the processing of iron ore

the patent for the processing of iron ore

MXPA06006655A - Process for producing iron ore ...

The present invention relates to a process for producing iron ore agglomerates comprising agglomerating fine iron ore particles in the presence of a binder system wherein the binder system comprises a binder and an alkali metal silicate and wherein the alkali metal silicate is present in an amount of between 0.0001 to 0.08 percent by weight, based on the total weight of dry iron ore ...

EA011259B1 - Process for producing iron ore agglomerates ...

The present invention relates to a process for producing iron ore agglomerates comprising agglomerating fine iron ore particles in the presence of a binder system wherein the binder system comprises a binder and an alkali metal silicate and wherein the alkali metal silicate is present in an amount of between 0.0001 to 0.08 percent by weight, based on the total weight of dry iron ore ...

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 ...

US9315878B2 - System and method for iron ore byproduct ...

Processing byproduct material from a direct reduction process of iron ore to reclaim iron and other materials from the byproduct. The systems and methods employ gravity separation tables to separate the iron from other byproduct material constituents. The byproduct material constituents may be size reduced, processed to remove dust, and sized prior to processing by the gravity separation.

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.

US Patent for Iron ore concentration process with grinding ...

Oct 25, 2013  Opposition to Australian Patent Application No. 2013334500 Iron ore concentration process with grinding circuit, dry desliming and dry or mixed (dry and wet) concentration in the name of Vale S.A., dated May 28, 2018, pp. 1-2.

US2799572A - Iron ore pelletizing process and product ...

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

Iron(fe) Patents and Patent Applications (Class 75/433 ...

Oct 22, 2017  Abstract: The invention relates to a method for processing slags of non-ferrous metallurgy, containing iron and valuable metals, to produce clean slag that is free of detrimental substances and valuable metals and suitable as it is for use as a raw material or construction material. Slag is reduced in a reduction furnace (18) with the help of reducing agents (19) so far that at least

BINDER COMPOSITIONS AND PROCESSES OF PREPARING IRON

Aug 06, 2012  Binder compositions for agglomerating iron ore fines are provided, the compositions comprising: (a) about 30 to about 80% by weight one or more types of anionic or nonionic acrylamide-containing polymer; (b) about 10 to about 35% by weight one or more types of inorganic or organic monomeric electrolyte; and (c) about 10 to about 35% one or more types of finely ground wood fiber.

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.

BINDER COMPOSITIONS AND PROCESSES OF PREPARING IRON ORE ...

Aug 06, 2012  Binder compositions for agglomerating iron ore fines are provided, the compositions comprising: (a) about 30 to about 80% by weight one or more types of anionic or nonionic acrylamide-containing polymer; (b) about 10 to about 35% by weight one or more types of inorganic or organic monomeric electrolyte; and (c) about 10 to about 35% one or more types of finely ground wood fiber.

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 ...

US Patent Application for ENHANCED BINDERS FOR IRON ORE ...

The iron ore being mined globally can approximately be divided equally into boulders and fines. For further processing boulders have to be sized to 10-30 mm for blast furnaces and 6-18 mm for sponge iron plants. Iron ore in a finely ground state is not easily transported or readily processed.

US Patent for Plasma heated furnace for iron ore pellet ...

In the face of shrinking world reserves of high-grade iron ore, low-grade ores are used, which must be concentrated before further processing. The concentrated iron ore fines obtained cannot be used as such, for example in a blast furnace to produce pig iron or to produce sponge iron in a direct reduction iron

Iron ore concentration process with ... - Patent Attorney

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

Patents for C22B 3 - Extraction of metal compounds from ...

CN101037721A Ion-aluminum separation technique of high-alumina brown iron ore 09/19/2007 CN101036915A Environment-protecting type filament of electric light source processor and the processing ...

Iron Ore Agglomeration Processes and their Historical ...

Dec 28, 2015  Pelletizing of iron ore is a method of Swedish origin, patented in 1912 by AG Andersson (Yamaguchi et al., 2010). The process was developed in the USA in the 1940s, and the first commercial plant started operation in Babbitt, Minnesota in 1952. The first iron ore pellet plant of the grate-kiln type was established at Humboldt Mine, Michigan in ...

Iron ore - Wikipedia

Iron ore is the raw material used to make pig iron, which is one of the main raw materials to make steel—98% of the mined iron ore is used to make steel. In 2011 the Financial Times quoted Christopher LaFemina, mining analyst at Barclays Capital, saying that iron ore is "more integral to the global economy than any other commodity, except ...

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.

Iron Ore Sintering: Process - ResearchGate

draft sintering process (Patent no. US786814). In 1902, a ... iron ore sintering process, but they must be reconsidered due to the rise of coke price, the unstable supply of anthracites and

METHOD FOR PROCESSING IRON ORE CONCENTRATES - STEEL

METHOD FOR PROCESSING IRON ORE CONCENTRATES . United States Patent 3791595 . Abstract: A water slurry of an iron ore concentrate from concentration equipment, for example, magnetic separators in a primary circuit containing fine high grade mineral particles, coarse low grade middling particles and coarse high grade mineral particles, is pumped ...

Brazilian company patents innovative dry iron ore ...

May 10, 2016  Brazilian company patents innovative dry iron ore processing method in Brazil and in the US. Tuesday, May 10th, 2016. The new technique was awarded the Platts Global Metals Awards 2015, considered the “Oscar” of mining, in the innovation category.

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 ...

BINDER COMPOSITIONS AND PROCESSES OF PREPARING IRON ORE ...

Aug 06, 2012  Binder compositions for agglomerating iron ore fines are provided, the compositions comprising: (a) about 30 to about 80% by weight one or more types of anionic or nonionic acrylamide-containing polymer; (b) about 10 to about 35% by weight one or more types of inorganic or organic monomeric electrolyte; and (c) about 10 to about 35% one or more types of finely ground wood fiber.

BETHLEHEM PATENTS IRON ORE PROCESS - The New York Times

BETHLEHEM PATENTS IRON ORE PROCESS. Oct. 13, 1961 ... The Bethlehem Steel Company said that millions of tons of previously unusable iron ores found in the Lake Superior region and in foreign ...

METHOD FOR PROCESSING IRON ORE CONCENTRATES - STEEL

METHOD FOR PROCESSING IRON ORE CONCENTRATES . United States Patent 3791595 . Abstract: A water slurry of an iron ore concentrate from concentration equipment, for example, magnetic separators in a primary circuit containing fine high grade mineral particles, coarse low grade middling particles and coarse high grade mineral particles, is pumped ...

US Patent Application for ENHANCED BINDERS FOR IRON ORE ...

The iron ore being mined globally can approximately be divided equally into boulders and fines. For further processing boulders have to be sized to 10-30 mm for blast furnaces and 6-18 mm for sponge iron plants. Iron ore in a finely ground state is not easily transported or readily processed.

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 ...

US Patent for Plasma heated furnace for iron ore pellet ...

In the face of shrinking world reserves of high-grade iron ore, low-grade ores are used, which must be concentrated before further processing. The concentrated iron ore fines obtained cannot be used as such, for example in a blast furnace to produce pig iron or to produce sponge iron in a direct reduction iron

Iron ore concentration process with ... - Patent Attorney

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

Patents for C22B 3 - Extraction of metal compounds from ...

CN101037721A Ion-aluminum separation technique of high-alumina brown iron ore 09/19/2007 CN101036915A Environment-protecting type filament of electric light source processor and the processing ...

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.

oem iron ore with patent and high efficiency

Self developed equipment with utility patent, high screening efficiency. Two types of vibrating screen: seat type and hanging type Xinhai wear resistant screen mesh, whose service life is 3 10 times longer than steels, 2 times than PUs High elastic and wear resistant rubber spring, easy to maintain

(PDF) Iron Ore Pelletizing Process: An Overview

Nov 09, 2020  Patents about organic binders in the iron ore ... There has been no displacement of steel plants from industrial to developing countries but there is an increase of iron ore processing ...

Iron Ore Pelletizing Process: An Overview IntechOpen

Jul 11, 2018  The iron ore production has significantly expanded in recent years, owing to increasing steel demands in developing countries. However, the content of iron in ore deposits has deteriorated and low-grade iron ore has been processed. The fines resulting from the concentration process must be agglomerated for use in iron and steelmaking. This chapter shows the status of the pelletizing process ...

Effect of HYL Process Parameters on the Quality of Iron ...

Dominguez-ahedo et al.-1983-united states patent (method for the gaseous reduction of iron ore to sponge iron) 1977-united states patent (Process for the production of sponge iron) Altenhoner

(PDF) Cold briquetting of iron ore fines for DRI ...

The third one-RECYRON®-is a patent-pending technology which has been developed in Austria. RECYRON® is a highly flexible process to utilize fine ore as well as all possible iron ore and carbon ...