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us patent 4235623 continuous smelting method for

Continuous smelting method for ferrochrome - DEMAG ...

A method is provided for continuous smelting of ferrochrome with less than 6.5% by weight carbon content in an electric reduction furnace. In the described method, separately from the normal mixture of ores continuously fed into the melt, and consisting of lumpy ore agglomerated fine ore, part of the mixture of ores is introduced as wholly or partially unreduced oxide-rich chrome ore directly ...

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US 4235623 A - Continuous Smelting Method For Ferrochrome ...

Continuous Smelting Method For Ferrochrome. Published: Nov 25, 1980 Earliest Priority: Dec 15 ... Additional Info: Full text ; Granted Patent US 4235623 A 021

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US4470845A - Continuous process for copper smelting and ...

US4470845A US06/455,867 US45586783A US4470845A US 4470845 A US4470845 A US 4470845A US 45586783 A US45586783 A US 45586783A US 4470845 A US4470845 A US 4470845A Authority US United States Prior art keywords furnace zone slag oxygen gas Prior art date 1983-01-05 Legal status (The legal status is an assumption and is not a legal conclusion.

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US3460223A - Device for fixing holes by method of smelting ...

US3460223A US3460223DA US3460223A US 3460223 A US3460223 A US 3460223A US 3460223D A US3460223D A US 3460223DA US 3460223 A US3460223 A US 3460223A Authority US United States Prior art keywords pipe wires concrete burner granite Prior art date 1967-08-02 Legal status (The legal status is an assumption and is not a legal conclusion.

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US Patent for Direct smelting process Patent (Patent ...

Nov 30, 2016  The present application is a divisional of pending U.S. Ser. No. 14/518,295 filed Oct. 20, 2014, which is a divisional application of pending U.S. Ser. No. 13/698,475 filed Jan. 10, 2013, which is a 371 national stage application of international PCT/AU2011/00058 filed May 18, 2011, which claims priority to, and the benefit of, Australian Patent Application 2010902162, filed on May 18, 2010 ...

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US Patent for System and predictive modeling method for ...

Sep 21, 2016  The present invention is a system and predictive modeling method specially designed to improve process control and energy efficiency for a smelting process used to produce pure metal from an ore containing said metal. Data is collected from various sensor sources in the smeltering process to predict whether an increase or decrease is needed in controlling two variables comprising temperature ...

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US2528208A - Process of smelting metals - Google Patents

US2528208A US683114A US68311446A US2528208A US 2528208 A US2528208 A US 2528208A US 683114 A US683114 A US 683114A US 68311446 A US68311446 A US 68311446A US 2528208 A US2528208 A US 2528208A Authority US United States Prior art keywords metal molten pasty molten metal smelting Prior art date 1946-07-12 Legal status (The legal status is an assumption and is not a

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US3264096A - Method of smelting iron ore - Google Patents

US3264096A US331830A US33183063A US3264096A US 3264096 A US3264096 A US 3264096A US 331830 A US331830 A US 331830A US 33183063 A US33183063 A US 33183063A US 3264096 A US3264096 A US 3264096A Authority US United States Prior art keywords molten ore chamber flame introducing Prior art date 1963-12-19 Legal status (The legal status is an assumption and is not a

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US5180422A - Copper smelting process - Google Patents

US5180422A US07/795,343 US79534391A US5180422A US 5180422 A US5180422 A US 5180422A US 79534391 A US79534391 A US 79534391A US 5180422 A US5180422 A US 5180422A Authority US United States Prior art keywords furnace smelting copper gypsum produce Prior art date 1990-11-20 Legal status (The legal status is an assumption and is not a legal conclusion.

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US Patent for Process for controlling aluminum smelting ...

Feb 20, 1990  A process for controlling an aluminum smelting cell comprising monitoring the cell voltage and current, alumina dumps, additions, operations and anode to cathode distance movements, continuously calculating the cell resistance and the bath resistivity from said monitored cell voltage and current, monitoring the existence of low frequency and high frequency noise in the voltage of the cell ...

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US 4,235,623 A - Continuous smelting method for ...

Patent US4235623A - Continuous smelting method for ferrochrome (US 4,235,623 A); Owner: Demag AG; Filed: 05/02/1979; Est. priority date: 12/15/1976; Status: Expired due to Term; Abstract: A method is provided for continuous smelting of ferrochrome with less than 6.5% by weight carbon content in an electric reduction furnace. In the described method, separately from the normal mixture of ores ...

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Continuous smelting method for ferrochrome

Complete Patent Searching Database and Patent Data Analytics Services. Continuous smelting method for ferrochrome Login Sign up

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US Patent for Continuous smelting method Patent (Patent ...

Justia Patents US Patent for Continuous smelting method Patent (Patent # 4,113,468) Continuous smelting method . Feb 24, 1977 - Demag, A.G. A method is provided for producing steel with a very low carbon content of as low as 0.015% by continuously maintaining a foaming slag layer at a particular volume, and using as the charge a pre-reduced ...

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US Patent for Method for continuous smelting of solid ...

Justia Patents With Charge Pre-heating US Patent for Method for continuous smelting of solid metal products Patent (Patent # 6,314,123) Method for continuous smelting of solid metal products Sep 25, 2000 - Paul Wurth S.A.

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US4113468A - Continuous smelting method - Google Patents

A method is provided for producing steel with a very low carbon content of as low as 0.015% by continuously maintaining a foaming slag layer at a particular volume, and using as the charge a pre-reduced sponge with a specified carbon/oxygen ratio. The process includes utilizing a slag with a specific content of iron and magnesium oxide.

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US605451A - Continuous smelting plant - Google Patents

US605451A US605451DA US605451A US 605451 A US605451 A US 605451A US 605451D A US605451D A US 605451DA US 605451 A US605451 A US 605451A Authority US United States Prior art keywords furnaces furnace smelting reducing metal Prior art date 1898-06-07 Legal status (The legal status is an assumption and is not a legal conclusion.

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Continuous smelting method - Patent US-4113468-A - PubChem

US-4113468-A chemical patent summary.

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Method for continuous smelting of solid metal products ...

US-6314123-B1 chemical patent summary.

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chrome ore smelt

US Patent # 4,235,623. Continuous smelting method for ... The introduction of the oxide-rich chrome ore, which ... A method for the continuous smelting of ferrochrome to obtain a product having a carbon content of less ... >>GET MORE. mini chrome smelting plant - Coal Surface Mining - SAMAC .

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Method of manufacturing stainless steel - SKF Steel ...

A method of manufacturing stainless steel comprising the steps of injecting a starting material containing chromium oxide and iron oxide into the lower portion of a reactor, ... United States Patent 4340420 ... 4235623: Continuous smelting method for ferrochrome: 1980-11-25: Rath: 75/11: 4072504:

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Project Memo - Home Zinc One Resources Inc.

Aug 09, 2017  United States Patent 4,238,222. Waelz Process of Volatilizing Zinc and Lead from Iron Oxide Containing Materials. Harry Serbent et al. Jul 20, 1979. 5. European Patent Specification EP 0 915 994 B1. “Wael” Method for Processing of Zinc Continaing Materials

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Stainless steel - Wikipedia

Stainless steel: 276 is a group of ferrous alloys that contain a minimum of approximately 11% chromium,: 3 a composition that prevents the iron from rusting and also provides heat-resistant properties.: 3 Different types of stainless steel include the elements carbon (from 0.03% to greater than 1.00%), nitrogen, aluminium, silicon, sulfur, titanium, nickel, copper, selenium, niobium, and ...

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Latest Model: Mini Copper Wire Granulator

Aug 29, 2017  This method uses copper scrap of which copper content is over 92% as raw material and utilizes these crafts such as smelting and continuous casting to get bright copper rod. The copper content of such copper rod is over 99.93% and the conductivity of it has reached 100.9% IACS.The essence and core of FRHC processing technology is to adjust the ...

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Class Definition for Class 501 - United States Patent and ...

Enamels, glazes, or fusion seals (e.g., raw, fritted, or calcined ingredients): This subclass is indented under subclass 11 . Compositions disclosed as vitreous enamels, or glazes, or similar compositions which are intended for use as seals between glass and/or metal components of various devices. (1) Note.

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Method for continuous smelting of solid metal products ...

US-6314123-B1 chemical patent summary.

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US Patent for Smelting method Patent (Patent # 4,119,454 ...

An improved method is provided for smelting steel from scrap in an electric arc furnace which reduces energy consumption, reduces operating noise, and improves the product quality in relation to the scrap charged. The method includes maintaining a continuous slag layer in the furnace vessel of a specific thickness and temperature, maintaining the furnace electrodes immersed in the slag layer ...

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Method of manufacturing stainless steel - SKF Steel ...

A method of manufacturing stainless steel comprising the steps of injecting a starting material containing chromium oxide and iron oxide into the lower portion of a reactor, ... United States Patent 4340420 ... 4235623: Continuous smelting method for ferrochrome: 1980-11-25: Rath: 75/11: 4072504:

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chrome ore smelt

US Patent # 4,235,623. Continuous smelting method for ... The introduction of the oxide-rich chrome ore, which ... A method for the continuous smelting of ferrochrome to obtain a product having a carbon content of less ... >>GET MORE. mini chrome smelting plant - Coal Surface Mining - SAMAC .

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Class Definition for Class 420 - United States Patent and ...

A method of reduction or smelting to yield metal without intent to obtain a particular alloy or metallic composition will be classified in Class 75, even if it is recognized that the product is impure. Furthermore, methods of melting, refining, or purifying an existing alloy will be placed in Class 75. (Metallurgical and Metallic Stock Classes.)

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S - Index to the U.S. Patent Classification System

Skip header and go to main content. About us Jobs Contact us. Classification Resources

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Zinc oxide particles: Synthesis, properties and ...

Mar 15, 2012  The first US patent was registered in 1850 to Leclaire and Barruel of France, Fig. 3, . Zinc metal is the starting material in this process. Zinc metal is the starting material in this process. A heated crucible containing zinc is covered with a lid to channel the zinc vapor through a central orifice.

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Lead–acid battery - Wikipedia

The French scientist Nicolas Gautherot observed in 1801 that wires that had been used for electrolysis experiments would themselves provide a small amount of "secondary" current after the main battery had been disconnected. In 1859, Gaston Planté's lead-acid battery was the first battery that could be recharged by passing a reverse current through it.

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Abhay Dhuwe - Process Engineer - Qatar Aluminum Company ...

Capably managed process control department which is responsible for process parameter control ensuring continuous process improvement, production and current efficiency. Involved in: Process for online power cut out of an aluminum reduction cell United States Patent 20100155259; honoured with the CEO Kitty Award for the same.

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History of science and technology in Japan - Wikipedia

Digital circuits. The parametron was a logic circuit element invented by Eiichi Goto in 1954. It was a digital computer element. Parametrons were used in Japanese computers from 1954 to the early 1960s, such as the University of Tokyo's PC-1 built in 1958, due to being reliable and inexpensive, but were ultimately surpassed by transistors due to differences in speed.

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Latest Company News for Alexander Mining Stock Market Wire

Alexander Mining subsidiary MetaLeach has been granted a patent in the US for a 'Method for Leaching Zinc from a Zinc Ore'. The patent, number 8,871,001, has a standard term of 20 years from the ...

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Friedrich Kueffner Patents - FreshPatents

Friedrich Kueffner patents The following is a sampling of recent Friedrich Kueffner patent applications (USPTO Patent Application #, Patent Title) sorted by month. August 2010 - Friedrich Kueffner patents 20100201231 - Fitting for a sales counter and/or a display counter for merchandise 20100203185 - Device for blow molding containers

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Electric Smelting Furnace of Ore

May 05, 2017  With cheap electric power the furnace to be described might be used on ores, but a well-known firm with an interest in it questions that it has advantage over the standard types in smelting. On December 22, 1931, United States Patent 1,837,696 was issued to Sydney T. Wiles (not Wile) for the electrothermic reduction of iron ores.

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220 F2d 803 Borg-Warner-Corporation v. Mall Tool Company ...

A counterpart of these patents, United States Patent to Serin No. 1,483,387, issued February 12, 1924, is not cited by defendant but is before us as plaintiff's Exhibit 1 bearing on the question of diligence. Serin's Swedish patent covering the same saw chain structure, though mentioned by the parties in memoranda, is not before us.

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