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US Patent # 4,130,477. Froth flotation process - Patents.com

At Patents you can conduct a Patent Search, File a Patent Application, ... Contact Us Is This Your Patent? Claim This Patent Now. ... United States Patent : 4,130,477: Podobnik , et al. December 19, 1978 Froth flotation process Abstract.

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US2950818A - Flotation process - Google Patents

US2950818A - Flotation process - Google Patents Flotation process Download PDF Info ... US United States Prior art keywords flotation ores frothing frothing agents agents Prior art date 1955-03-05 Legal status (The legal status is an assumption and is not a legal conclusion.

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US1944529A - Flotation process - Google Patents

US1944529A US651228A US65122833A US1944529A US 1944529 A US1944529 A US 1944529A US 651228 A US651228 A US 651228A US 65122833 A US65122833 A US 65122833A US 1944529 A US1944529 A US 1944529A Authority US United States Prior art keywords coal fusain froth flotation pulp Prior art date 1931-09-26 Legal status (The legal status is an assumption and is not a legal …

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US20080197053A1 - FROTH FLOTATION PROCESS ... - …

FROTH FLOTATION PROCESS WITH pH MODIFICATION Download PDF Info Publication number US20080197053A1. US20080197053A1 US11/677,132 US67713207A US2008197053A1 US 20080197053 A1 US20080197053 A1 US 20080197053A1 US 67713207 A US67713207 A US 67713207A US 2008197053 A1 US2008197053 A1 ... 2007-02-21 Priority to US11/677,132 priority Critical patent ...

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US1926045A - Flotation process - Google Patents

US1926045A US555856A US55585631A US1926045A US 1926045 A US1926045 A US 1926045A US 555856 A US555856 A US 555856A US 55585631 A US55585631 A US 55585631A US 1926045 A US1926045 A US 1926045A Authority US United States Prior art keywords fluorspar water ore pulp flotation Prior art date 1931-08-07 Legal status (The legal status is an assumption and is not a legal …

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US1684536A - Flotation process - Google Patents

US1684536A - Flotation process - Google Patents Flotation process Download PDF Info Publication number ... US United States Prior art keywords flotation mineral water xanthate pulp Prior art date 1927-01-24 Legal status (The legal status is an assumption and is not a legal conclusion.

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US2014717A - Flotation process - Google Patents

US2014717A US685425A US68542533A US2014717A US 2014717 A US2014717 A US 2014717A US 685425 A US685425 A US 685425A US 68542533 A US68542533 A US 68542533A US 2014717 A US2014717 A US 2014717A Authority US United States Prior art keywords mixture flotation organic compounds pressures elevated temperatures Prior art date 1933-08-16 Legal status (The legal status …

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US5443158A - Coal flotation process - Google Patents

A process for the flotation of particles of lignitic coal, subbituminous coal or oxidized bituminous coal contained within a slurry of coal and gangue, comprising the steps of dispersing a surfactant throughout the slurry, first conditioning the slurry such that the surfaces of the particles of coal are selectively coated by the surfactant to produce activated particles of coal, dispersing an ...

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US1960526A - Flotation process and reagent - Google …

US1960526A US346248A US34624829A US1960526A US 1960526 A US1960526 A US 1960526A US 346248 A US346248 A US 346248A US 34624829 A US34624829 A US 34624829A US 1960526 A US1960526 A US 1960526A Authority US United States Prior art keywords acid reagent lbs per ton flotation Prior art date 1929-03-11 Legal status (The legal status is an assumption and is not a legal …

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US1960526A - Flotation process and reagent - Google …

US1960526A US346248A US34624829A US1960526A US 1960526 A US1960526 A US 1960526A US 346248 A US346248 A US 346248A US 34624829 A US34624829 A US 34624829A US 1960526 A US1960526 A US 1960526A Authority US United States Prior art keywords acid reagent lbs per ton flotation Prior art date 1929-03-11 Legal status (The legal status is an assumption and is not a legal …

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US2382360A - Flotation process - Google Patents

US2382360A - Flotation process - Google Patents Flotation process Download PDF Info ... US United States Prior art keywords flotation glycine potassium chloride chloride ester Prior art date 1940-11-04 Legal status (The legal status is an assumption and is not a legal conclusion.

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US20080197053A1 - FROTH FLOTATION PROCESS ... - …

FROTH FLOTATION PROCESS WITH pH MODIFICATION Download PDF Info Publication number US20080197053A1. US20080197053A1 US11/677,132 US67713207A US2008197053A1 US 20080197053 A1 US20080197053 A1 US 20080197053A1 US 67713207 A US67713207 A US 67713207A US 2008197053 A1 US2008197053 A1 ... 2007-02-21 Priority to US11/677,132 priority Critical patent ...

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US Patent for Flotation process Patent (Patent # …

Justia Patents Deflocculation And Flocculation US Patent for Flotation process Patent (Patent # 4,441,993) Flotation process . May 3, 1979 - Fluor Corporation ...

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US Patent for Froth flotation process Patent (Patent ...

Justia Patents Preferential US Patent for Froth flotation process Patent (Patent # 4,514,292) Froth flotation process . Nov 9, 1983 - Hercules Incorporated. The froth ...

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US Patent for Scheelite flotation process Patent (Patent ...

Justia Patents Preferential US Patent for Scheelite flotation process Patent ... Scheelite flotation process . Sep 13, 1982. A process for separating scheelite from gange wherein the ore is ground with 0.4 to 10 grams of alkali metal carbonate per kg. of ore, forming a …

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US Patent for Flotation process Patent (Patent # …

Justia Patents Preferential US Patent for Flotation process Patent ... Flotation process . Feb 22, 1991 - Inco Limited. A method of flotation of sulfides wherein pyrrhotite is depressed by use of a water-soluble polyamine while non-ferrous metal-containing sulfide or sulfidized minerals are floated selectively.

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US Patent Application for PROCESS TO ... - …

Justia Patents US Patent Application for PROCESS TO TREAT PHOSPHATE ORES Patent Application (Application #20200222914) PROCESS TO TREAT PHOSPHATE ORES . Dec 18, 2017. The present ...

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Patent process overview | USPTO

There are three types of patents - Utility, Design, and Plant. General Information Concerning Patents; Utility Patent. Utility patents may be granted to anyone who invents or discovers any new and useful process, machine, article of manufacture, or compositions of matters, or …

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US Patent # 4,775,463. Process for the flotation of ...

Process for the flotation of phosphate mineral and an agent to be used in the flotation Abstract. The invention relates to a method of separating phosphatic minerals from phosphate ores, especially from phosphate carbonate ores by flotation in the presence of a collector, which comprises a compound having the general formula or its salt, in which formula l and m are mutually independently 0 or ...

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US Patent for Flotation process Patent (Patent # …

Justia Patents Preferential US Patent for Flotation process Patent ... Flotation process . Feb 22, 1991 - Inco Limited. A method of flotation of sulfides wherein pyrrhotite is depressed by use of a water-soluble polyamine while non-ferrous metal-containing sulfide or sulfidized minerals are floated selectively.

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US Patent for Froth flotation process Patent (Patent ...

Justia Patents With Modifying Agents US Patent for Froth flotation process Patent (Patent # 4,130,477) Froth flotation process . Dec 21, 1977 - The Dow Chemical Company. A process for ...

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US Patent for Flotation process Patent (Patent # …

Justia Patents Deflocculation And Flocculation US Patent for Flotation process Patent (Patent # 4,441,993) Flotation process . May 3, 1979 - Fluor Corporation ...

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US Patent for Scheelite flotation process Patent (Patent ...

Justia Patents Preferential US Patent for Scheelite flotation process Patent ... Scheelite flotation process . Sep 13, 1982. A process for separating scheelite from gange wherein the ore is ground with 0.4 to 10 grams of alkali metal carbonate per kg. of ore, forming a …

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US Patent for Froth flotation process Patent (Patent ...

Justia Patents Liquids Added To Classify Or Separate Material US Patent for Froth flotation process Patent (Patent # 3,973,734) Froth flotation process Apr 22, 1974 - Industrial Resources, Inc.

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US Patent for Method to improve the ... - patents.justia.com

Justia Patents With Modifying Agents US Patent for Method to improve the cleaner froth flotation process Patent (Patent # 7,360,656) Method to improve the cleaner froth flotation process Dec 16, 2005 - Rohm and Haas Company

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US 4556482 A - Process For The Flotation Of ... - Patent …

A process for the beneficiation of copper sulfide mineral values from base metal sulfide ores with selective rejection of pyrite and/or pyrrhotite or other gangue minerals at pH values of below about 10.0 by froth flotation is disclosed. The process includes the use of a new and improved collector which at pH values below 10.0 exhibits unexpectedly high collector activity for copper sulfide ...

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Patent Process Overview | USPTO

24-11-2014· Patent Center. Try the beta replacement for EFS-Web, Private PAIR and Public PAIR. Check application status. Check patent application status with public PAIR and private PAIR. Fees and payment. Pay maintenance fees and learn more about filing fees and other payments. Patent Trial & Appeal Board. Resolve disputes regarding patents with PTAB ...

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Method (patent) - Wikipedia

In United States patent law, a method, also called "process", is one of the four principal categories of things that may be patented through "utility patents".The other three are a machine, an article of manufacture (also termed a manufacture), and a composition of matter.. In that context, a method is a series of steps for performing a function or accomplishing a result.

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US Patent # 4,282,089. Phosphate flotation with tribasic ...

Phosphate flotation with tribasic acids Abstract. A phosphate ore flotation process subjects a phosphate ore containing silica and silicates to froth flotation in the presence of a collector, said collector being a C.sub.54 high molecular weight tribasic acid comprising three carboxylic functional groups, recovering the phosphate concentrate from the overflow, and removing the separated silica ...

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