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patent of iron ore process

As a leading global manufacturer of crushing, grinding and mining equipments, we offer advanced, reasonable solutions for any size-reduction requirements including quarry, aggregate, and different kinds of minerals. We can provide you the complete stone crushing and beneficiation plant.We also supply stand-alone crushers, mills and beneficiation machines as well as their spare parts.

PE Series Jaw Crusher

PE Series Jaw Crusher

Based on years' experience and technology development, GM jaw crusher series are of 6 different
models, which can meet most crushing requirements in primary and secondary crushing.

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HPT Cone Crusher

HPT Cone Crusher

GM HPT multiple cylinder hydraulic cone crushers, are the pacemaker in China’s hydraulic cone
crushers for the excellent operating performance and positive customer feedback.

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PF Series Impact Crusher

PF Series Impact Crusher

Thousands of GM PF Series Impact Crushers are installed all over the world in recent 20 years. It has
been proved that this series of crushers effectively increase productivity

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VSI Sand Making Machine

VSI Sand Making Machine

GM VSI Sand Making Machine (Sand Making Machine) is one of the most advanced impact crushers
nowadays. It introduces high quality roller bearings like Sweden SKF and America TIMKEN

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Quarry Crusher

Quarry Crusher

Quarry crusher with high-efficiency and hydraulic pressure was widely used in mining, concrete
factory, sand stone making, etc.

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XZM Series Ultrafine Mill

XZM Series Ultrafine Mill

GM XZM Series Ultrafine Mill is widely used for micron powder producing. The output size can
reach 2500mesh (5um). It is suitable to grind the material with middle and low hardness

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MTM Series Trapezium Mill

MTM Series Medium Speed Trapezium Mill

GM MTM Series Trapezium Mill is the world leading industrial mill. It is designed by our own
engineers and technical workers based on many years' industrial mill research

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LM Vertical Roller Mill

LM Vertical Roller Mill

LM series vertical roller mill, which is developed and launched by GM, sets medium crushing,
drying, grinding, classifying and other functions

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MQ Series Ball Mill

MQ Series Ball Mill

Ball mill is the most widely used kind of grinding equipment. GM Ball mills are widely used
in various types of ores' benefication, electricity, cement and chemical industries.

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Cement Mill

Cement Mill

A cement mill is the equipment that used to grind the hard, nodular clinker from the cement kiln into
the fine grey powder that is cement. Most cement is currently ground in ball mills.

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YKN Series Vibrating Screen

YKN Series Vibrating Screen

YKN series vibrating screen adopts the eccentric vibration exciter of N series. And the transmission
adopts flexible connector.So the amplitude is bigger and the vibration is much more stable

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XSD Series Sand Washing Machine

XSD Series Sand Washing Machine

The GM sand washing machine of XSD series is a kind of cleaning equipment of international
advanced level for sand and slag pellets

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Y Series Mobile Jaw Crushing Plant

Y Series Mobile Jaw Crushing Plant

Y series mobile Jaw Crusher is our company independent research and development of efficient
mobile crusher, such as construction waste processing.

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US Patent Application for IRON ORE CONCENTRATION .

7. An iron ore concentration process with dry grinding circuit, dry desliming and mixed (dry and wet) concentration, wherein the process is applied for concentration of iron ores with one stage of grinding, with coarse liberation sizes, and wherein the process

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US3672579A - Process for beneficiating magnetite iron .

- 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...

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12.5 Iron And Steel Production - US EPA

12.5 Iron And Steel Production 12.5.1 Process Description1-3 The production of steel at an integrated iron and steel plant is accomplished using several interrelated processes. The major operations are: (1) coke production, (2) sinter production, (3) iron production ...

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HAZER IP UPDATE – HAZER FILES NATIONAL PHASE PATENT .

This core patent application covers a range of key process parameters including temperature and pressure conditions that promote the core Hazer Process and the use of iron ore and other similar materials as catalysts. These applications will be formally

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Microbial reduction of iron ore (Patent) | DOE Patents

@article{osti_867178, title = {Microbial reduction of iron ore}, author = {Hoffmann, Michael R and Arnold, Robert G and Stephanopoulos, Gregory}, abstractNote = {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 ...

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Steel - Open-hearth steelmaking | Britannica

Bulk materials, such as scrap, cold blast-furnace iron, ore, limestone, coke, and alloying agents, are charged through the furnace doors in small boxes of one- to two-cubic-metre capacity. The boxes are brought to the OHF on small railroad buggies, and a charging machine then moves one box after another through a door, turns them over, and dumps their contents onto the hearth.

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SIPS2015 - Direct Reduction of Iron: A Review on .

[9] Fierro Esponja, S.A. Patent n. US3765872. Method and Apparatus for the Gaseous Reduction of Iron Ore to Sponge Iron. Filling date: December, 1970. Publication date: October, 1973. [10] HYLsa, S.A. Patent US4336063. Method and Apparatus for the

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Magnetic Separation Equipment For Iron Ore Haematite .

iron ore mining reagents suppliers crushing equipment in mining of iron ore patent of iron ore process iron ore crusher mine how to decide type of grinding for iron ore iron ore crusher manufacturer india silica sand iron flotation cyclone used in iron ore slurry ...

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SIPS2017 - Basic Physicochemical Principles of ORIEN .

In a previous paper, the ORIEN Technology was introduced as a new, compact, energy intensive and self-sufficient as well as environmentally friendly iron and steel technology that has numerous advantages compared to the classical iron and steel production technologies. The purpose of this paper is to describe the basic physicochemical principles of this process. The core of the technology ...

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The Use of Hydrogen in the Iron and Steel Industry

virgin iron added to dilute the tramp elements such as copper and zinc to improve final product quality • DRI – D irect R educed I ron is one of the iron products added to the scrap to increase purity • DRI is iron ore that has been reduced to iron with syngas 6

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Figure 4.6 from HYDROMETALLURGICAL PROCESS OF .

A study on the dephosphorization of Agbaja Iron Ore using hydrometallurgical process has been carried out. The central composite design of 23 response was formulated and used to develop a model equation. The optimized result of the equation using Matlab ...

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Kelly Pneumatic Iron Process - American Chemical .

3/4/2021· William Kelly's pneumatic iron William Kelly (1811–1888) was the American ironworks owner who is credited with first identifying a pneumatic process for iron refining. Kelly's discovery was a critical development in the commercial production of iron. In 1846, Kelly, of ...

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From the History of Iron and Steel Making: Part One :: .

Minette means "minor ore", which has an iron content of only around 30%. 1883. The first blast furnace in the Voelklingen Ironworks goes into operation. It was the largest in the Saar iron and steel region with its 200 m³ capacity.

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US3416914A - Chloride process for producing iron from .

iron chloride hydrogen ore reaction Prior art date 1965-04-22 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 to the accuracy of the status listed.) Inventor

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Process for iron ore pellets production - Patent US .

US-5908166-A chemical patent summary. Welcome to PubChem!

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Brazilian company patents innovative dry iron ore .

The clean technology developed by New Steel is breaking paradigms, as it does not use water to process iron ore, in addition to using natural gas or biomass as an energy source.

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Ore pretreatment process - EXXON RESEARCH AND .

A process is provided for lowering the sulfur and phosphorus content of a particulate oxidic iron ore which renders the ore more suitable for use in direct ore reduction processes. By pretreating the ore with an aqueous solution of an inorganic base, preferably at slightly elevated temperatures, the sulfur and phosphorus levels in the ore are lowered to a desirable range.

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CPC COOPERATIVE PATENT CLASSIFICATION C CHEMISTRY; METALLURGY C21C PROCESSING OF PIG-IRON.

C21C CPC COOPERATIVE PATENT CLASSIFICATION C CHEMISTRY; METALLURGY (NOTES omitted) METALLURGY C21 METALLURGY OF IRON C21C PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL

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US4405588A - Process of removing iron impurities from .

US4405588A - Process of removing iron impurities from ores - Google Patents. A process of removing iron impurities from ores, particularly useful for removing stains of iron impurities adhered to...

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Direct-Reduced Iron - an overview | ScienceDirect Topics

5/1/2012· The RHF process was originally developed as an alternative to gas-based direct reduction, making DRI from iron ore and coal. The process started from the patent of D. Beggs applied by Midland-Ross Corporation in 1965 [144]. This process was known as Heat].

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Kelly Pneumatic Iron Process - American Chemical Society

Kelly Pneumatic Iron Process Lyon County Public Library, Eddyville, Kentucky Murray State University, Murray, Kentucky May 11, 2015 American Chemical Society possible the rapid manufacture of a malleable product of iron, in large quantities and masses, of

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The Interactive History of Metallurgy - Timeline of metal .

This patent was submitted on March 19th 1908 and granted on June 24th 1913, it was patent number 1,065,379. It was this patent that represented the invention of the nitriding process in the United States. In 1907, Machet went on to patent the gaseous

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US2799572A - Iron ore pelletizing process and product - .

1953-04-03 Application filed by Cleveland-Cliffs Iron Co filed Critical Cleveland-Cliffs Iron Co 1953-04-03 Priority to US346786A priority Critical patent/US2799572A/en 1957-07-16 Application granted granted Critical 1957-07-16 Publication of US2799572A Critical

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Microbial reduction of iron ore (Patent) | DOE Patents

@article{osti_867178, title = {Microbial reduction of iron ore}, author = {Hoffmann, Michael R and Arnold, Robert G and Stephanopoulos, Gregory}, abstractNote = {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 ...

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Process for reduction of iron ore - Patent US-3193378-A - .

US-3193378-A chemical patent summary. Welcome to PubChem!

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Iron Ore Pelletizing Process: An Overview | IntechOpen

10/7/2017· 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 ...

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discovery of the ^Process for (^Making ^Anthracite Iron I

process for smelting iron with anthracite might help to supply it. In his annual message to the General Assembly of Pennsylvania in 1838 Governor Joseph Ritner declared: "The successful union of stone coal and iron ore, in the arts, is an event of decidedly

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From Red to Grey: Revisiting the Pedersen Process to Achieve Holistic Bauxite Ore Utilisation

1/6/2018· Patent obtained 10 years later. 1920 • Harald Pedersen experiments: smelting of iron ore with low quality aluminous materials, lime and coke. • Main Products: Pig Iron low in sulfur and a calcium aluminate slag to be treated for Al extraction. Patents of the ...

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