Kemi

In the 1950s, Finland''s Outokumpu started nickel production with a view to making stainless steel; open-pit chromite mining began at Kemi in 1966 and ferrochrome production in 1967 at nearby Tornio, which is located at the far northern end of …

US Patent for Method and system for producing low …

2019-6-27 · A method and system for recovering a high yield of low carbon ferrochrome from chromite and low carbon ferrochrome produced by the method. A stoichiometric mixture of feed materials including scrap aluminum granules, lime, silica sand, and chromite ore are provided into a plasma arc furnace. The scrap aluminum granules are produced from used aluminum …

Chrome Ore | MSquare Mining

The first patent for the use of chromium in steel was granted in 1865 – but the large-scale use of chromium had to wait until chromium metal could be produced by the alumino-thermic route, developed in the early 1900s and when the electric arc furnace could smelt chromite into the master alloy, ferrochromium.Whilst metal finishing brought ...

INVESTMENT OPPORTUNITIES IN THE PHILIPPINE …

2011-1-3 · Taganito Nickel Mine 3 Medium-scale chromite mines Benguet Corp. Masinloc Project Crau Minerals Omasdang Project Heritage Res. Homonhon Project 5 medium-scale gold mines TVI Canatuan Project Benguet Acupan SSM Operations NRDC Diwalwal Direct State Development Project Philsaga Mining Corp. Banahaw Gold Project Johson Gold Mining Corp.

(PDF) Commercial Processes for the Extraction of Platinum ...

2021-11-17 · the depletion of high grade PGMs resources due to conti nuous mining, ... US Patent: 5542957. 77. Meng X, ... low chromite, large resource and long life-of-mine operations. View. Show abstract.

Environmental scenario of chromite ore mining at …

2017-5-3 · Chromite ore Band-I to Band-V are confined to weathered limonite. Band-I is the most promising chromite RESEARCH • ENVIRONMENTAL SCIENCE Discovery Science, Volume 1, Number 2, August 2012 Science Environmental scenario of chromite ore mining at Sukinda valley beyond 2030 Ultrabasics: It is a metamorphic rock with less than 8 % SiO 2 and is a

KWG Resources Inc.: South Africa Accepts KWG Patent ...

2018-1-25 · Canmet Mining Publishes Excellent Reduction Test Results. ... KWG subsidiary Muketi Metallurgical LP is prosecuting two chromite-refining patent applications in Canada, India, Indonesia, Japan ...

Chromite

2016-1-1 · Chromite (Cr) occurs exclusively in mafic and ultramafic igneous rocks (Papp and Lipin, 2006).Although some Cr-based minerals such as crocoite (PbCrO 4), vauquelinite (Pb 2 Cu[CrO 4][PO 4]), uvarovite (Ca 3 Cr 2 [SiO 4] 3), and merumite (4(Cr,Al) 2 O 3 ·3H 2 O) are well known, chromite (FeCr 2 O 4) is the only one that is a commercially recoverable source of Cr …

WO2015060951A1

A process for producing chromium iron alloys suitable for steel making directly from chromite ore wherein fines of chromite ore with additions of carbon fines, and accelerant and a binder are agglomerated and the dry agglomerates are fed into a reaction vessel with natural gas as a reducing agent at elevated temperatures adequate for reduction for thereby producing a …

Prairie City, Oregon Chromium Occurrence Mines | The …

Filter 10 chromium occurrence mines by commodity, disposition, development status, and record type in Prairie City, Oregon.

Method for recovering chromite, and method for wet ...

A method for recovering chromite from ore slurry obtained by processing nickel oxide ore, the raw material, in a plant for the wet smelting of nickel oxide ore. In the method chromite is separated and recovered from an ore slurry obtained from a nickel oxide ore when nickel and cobalt are recovered from the nickel oxide ore.

Reactivity of Low-Grade Chromite Concentrates towards ...

The most economically important iron-chromium bearing minerals is chromite. In natural deposits, iron(II) is frequently substituted by magnesium(II) while chromium(III) is replaced by aluminum(III) and/or iron(III) forming a complex chromium bearing material. The majority of mined chromite is intended for the production of ferrochrome which requires a chromite concentrate with high …

Missouri University of Science and Technology Scholars'' …

2021-8-19 · V. Richards and S. C. Singhal, "Method of Making Highly Sinterable Lanthanum Chromite Powder," U.S. Patents, Jan 1992. This Patent is brought to you for free and open access by Scholars'' Mine. It has been accepted for inclusion in Materials Science and Engineering Faculty Research & Creative Works by an authorized administrator of Scholars'' …

Chromite-Manufacturing Technology, Applications, Patent ...

2020-4-10 · Chromite mining in India started around 1903 there was no ferro-chrome production in the country till 1968. Hence most of the chromite ore was exported. India exported about 3.84 million tonnes between 1903 to 1980.

KWG Resources Inc. | (KWG: CSE) | 2014

2014-8-18 · KWG is an exploration stage company that is participating in the discovery, delineation and development of chromite deposits in the James Bay Lowlands of Northern Ontario, including 1,024 hectares covered by four unpatented mining claims (Fancamp Claims) approximately 280km north of Nakina, Ontario, which contains the Black Horse chromite …

Chromite Patent Awarded to Pro-Or

2004-10-1 · A worldwide patent has been awarded to Ressources Minires Pro-Or Inc. for its chromite enrichment technology. The company has also applied for a patent for its PGE extraction technology. The chromite technology is available for licensing.

KWG Resources announces Ring of Fire ore transportation ...

2021-7-28 · KWG subsequently acquired intellectual property interests, including a method for the direct reduction of chromite to metalized iron and chrome using natural gas. KWG subsidiary Muketi Metallurgical LP is prosecuting two chromite-refining patent applications in Canada, India, Indonesia, Japan, Kazakhstan, South Africa, South Korea, Turkey, and USA.

KWG Resources wins key chromite patent | Sudbury Star

Chromite - ScienceDirect

CN1924056A

The invention discloses a C-Cr Fe fusing technology through ore heating furnace, which is characterized by the following: adding 8-20% silica, 4-10% coke and 1.5% dolomite in the ore heating furnace; setting the adding quantity of silica and coke at 2: 1; finishing the fusing procedure within 2000kwh.

G.R. No. 49143 August 21, 1989

Records show that petitioner Zambales Chromite filed its patent application over its 60 mining claims on June 14, 1977 and to order such disposal of said "application on its own merit" is not within the scope of the jurisdiction of the Court.

CHROMIUM: KWG Acquires of Chromium …

2015-6-30 · TORONTO - KWG Resources Inc. has now acquired one hundred percent of the ownership rights in two United States provisional patent applications relating to the production of chromium iron alloys directly from chromite ore, and the production of low carbon chromium iron alloys directly from chromite concentrates (the "Chromium IP") announced on April 21, 2014.

KWG Resources wins key chromite patent | Sudbury Star

2018-1-3 · The Ring of Fire is a large nickel and chromite mining deposit located more than 600 kilometres northwest of Timmins in the James Bay Lowlands near Webequie and McFaulds Lake. KWG owns large mining properties in the region. Company CEO Frank Smeenk was pleased with the recent patent announcement, made in December.

Samancor Chrome Mines

Scrapers haul chromite to ore passes that load trains on the haulage level. The trains load a conveyor in the hoisting adit. The dimensions in the Waterkloof/Millsell mining block have allowed WCM to replace scrapers with load-haul-dump …

An Investigation on the Solid State Reduction of Chromite ...

E. J. Chellius, US Patent 2 226 967 (1932) ... A Atasoy, ''The current chromite mining industry in Turkey'' (will be presented in the 5th Inter. Pow. Metall. Conferance, Ankara Turkey)

chromium mining techniques

chromium mining techniques. Chromite Mining Process - Cliffs Natural Resources Extraction of the Chromite Ore. Both surface and underground mining methods will be used to mine the chromite. Mining produces both ore and waste rock. chromium processing -- Encyclopedia Britannica Mining and concentrating. Chromite deposits are mined by both ...

Method of concentration of magnesia chromite ore

The disadvantage of this method is the inability to control the Rel shall provide Cr 2 About 3 /FeO in grains of chromite, the impossibility of extracting impurity oxides of Nickel and cobalt. Known combined method for processing an integrated iron ore, chromium, Nickel and cobalt [Japan patent No. 2522, CL 9CQ, Appl. 19.06.1963, publ. 15.04.1964].

Process for extracting chromium from chromium ores ...

Process of extracting chromium from a chromium ore or concentrate by oxidation, which comprises suspending the chromium ore or concentrate in a bath of molten salts and introducing an oxygen-containing gas into the suspension in a sufficient amount and for a sufficient amount of time to oxidize chromium therein.

Sodium monochromate obtaining process

As you know, the filler is necessary in order to weaken the melting of chromite mining and to bind impurities. A known method of producing monochromatic sodium by oxidative calcination of the mixture consisting of chromite ore, soda ash and dolomite-slurry filler, with subsequent leaching received SPECA (see VA Rowans and other Works of UNICHEM ...

KWG looks to buy 50% of patent | Sudbury Star

2014-4-21 · But with chromite selling for $200 a ton, that''s a $50-a-ton saving right off the top. Monday''s announcement about the patents isn''t breaking news, but the company is required to disclose the information, said Lavigne. The closing of the chromium intellectual property transaction is subject to acceptance by the TSX Venture Exchange.

G.R. No. 188364

In 1970, ZCMCI acquired the 60 mining claims of Spouses Gonzalo and Purificacion Nava located in Sta. Cruz, Zambales. These mining claims were registered under Act of Congress of July 1, 1902. [8] ZCMCI thereafter filed its application for patent and availment of rights and privileges over the mining claims pursuant to Presidential Decree (P.D.)