• USB2

    USB2 US13/864,677 USA USB2 US B2 US B2 US B2 US A US A US A US B2 US B2 US B2 Authority US United States Prior art keywords rare earth mineral acid solution coal ash acid solution Prior art date Legal status (The legal status is an assumption and is not .

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  • Fly ash brick

    Fly ash brick (FAB) is a building material, specifically masonry units, containing class C or class F fly ash and water. Compressed at 28 MPa (272 atm) and cured for 24 hours in a 66 °C steam bath, then toughened with an air entrainment agent, the bricks can last for more than 100 freezethaw cycles. Owing to the high concentration of calcium oxide in class C fly ash, the brick is described ...

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  • What is Fly Ash?| Concrete Construction Magazine

     · Class C and F fly ashes were used in this research project. Currently, more than 50% of the concrete placed in the contains fly ash. Dosage rates vary depending on the type of fly ash and its reactivity level. Typically, Class F fly ash is used at dosages of 15% to 25% by mass of cementitious material and Class C fly ash at 15% to 40%.

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  • Republic Polytechnic team finds way to 'clean ...

     · SINGAPORE — Fly ash produced from burning garbage could soon be used to make concrete, reducing the amount of waste that will have to be dumped in landfills.

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  • Patents and Licensing | USDA

     · Patents and Licensing. USDA offers private sector businesses, state and local governments, and universities the opportunity to license federallyowned inventions. The partnerships USDA creates are designed to augment research programs, expedite research results to the private sector, exchange information and knowledge, stimulate new business ...

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  • Fly Ash Brick Technology

    EditionModern Technology of Soaps, Detergents Toiletries (with Formulae Project Profiles) 4th Revised EditionThe Complete Technology Book on Textile Spinning, Weaving, Finishing and (3rd Revised Edition)International Seminar on Coal Science TechnologyStudies On Compacted Stabilised Fly Ash Mixtures And Fly Ash Bricks For ...

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  • Method of making a mineral filler from fly ash

    In accordance with one aspect of the invention, a method for producing mineral filler from fly ash is provided comprising the steps of providing a quantity of raw fly ash having a carbon content of not more than 1% by weight, and passing the fly ash through an air classifier to obtain from about % to about 65% by weight of a fine fraction having an average particle size of from about to ...

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  • Solid Waste Management and Recycling Technology of Japan

    Recycling Technology of Japan ... Fly ash Watercooling for fire grate Panel type watercooled refractory Efficient Use Ammonia Primary air Secondary air Hightemperature highpressure boiler 4MPa X 400°C Lowtemperature alytic desulfurization device Below 170 °C

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  • A New Life For Coal Ash

    15/02/2016 · Fly ash for concrete ... Of the many reviews on fly ash and coal ash I don't find one citation about a major patent that was ... The technology does not solve the entire ash problem but ...

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  • Method for increasing the rate of compressive strength ...

    What is claimed is: 1. A method for increasing the early rate of strength gain of a hardenable mixture containing fly ash comprising exposing fly ash to an aqueous slurry of an alkaline material prior to incorporation of the fly ash in a hardenable mixture, wherein the fly ash is characterized by at least 99% of the particles having a particle size of less than 20 microns and having a fineness ...

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  • Guide

    CHAPTER 9 Finishing pages 26–27 CHAPTER 10 Curing pages 28–30 CHAPTER 11 Joints pages 31–33 ... than 5% of either fly ash, ground slag, amorphous silica (eg silica fume), or a combination of these. AGGREGATES 65–80% of mix volume WATER CEMENT. Cement Concrete .

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  • Base coat stucco mortars for coating and finishing ...

    Base coat stucco mortars for coating and finishing interior and exterior walls of a building . United States Patent ... PozzolanNatural PozzolanType C fly ash or Type F Fly Ash ranging from 0% to of cement by weight.

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  • Method of removing carbon from fly ash

     ·  · First, raw fly ash containing carbon is mixed with water either prior to or after placement in a conditioning tank 12 of a flotation apparatus 10 to produce a slurry 14. The slurry preferably comprises about 1 to 70% by weight raw fly ash and from about 30 to 99% by weight water.

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  • LWP Technologies lodge second US patent for oil and gas ...

    LWP Technologies has moved to safeguard its game changing flyashbased proppant technology for oil and gas producers by lodging a second patent in the US. Proppants are often the single largest cost item in the fracking of an oil and gas well. They lodge in the tiny fractures created during the operation in order to keep the fracture open to facilitate the flow of oil and gas.

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  • Fly Ash Brick Technology

    stabilised fly ash mixtures for the manufacture of fly ash bricks and characteristics of masonry using such bricks. A brief introduction to the technology of compacted stabilised fly ash bricks for structural masonry is provided. Review of the literature on fly ashlime and fly ashlimegypsum mixtures, and fly ash bricks is provided in chapter 1.

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  • Coal Ash Recycling Rate Declines Amid Shifting Production ...

     · Coal Ash Recycling Rate Declines Amid Shifting Production and Use Patterns. WASHINGTON, Nov. 19, 2019 /PRNewswire/ Fiftyeight percent of the coal ash produced during 2018 was recycled – down ...

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  • SwissVortex

    Swiss Idea, Technology, Excellence. SwissVortex empowers entrepreneurs, clinicians, and researchers to create and commercialize innovative cardiovascular technologies to address unmet clinical needs, improve patient outcomes and reduce the cost of care. We guide you through all the steps of therapy development, starting from where you are today.

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  • Carbon Nanoplatelet (CNP) Production from Exhaust CO2 ...

    Lead Proponent: Carbon Upcycling Technologies Inc. (CUT) Loion: Calgary, AB EIP Contribution: 3,339,050 Project Total: 7,858,506 Strategic Area: Carbon Capture, Use and Storage Project Objectives: Phase I of this project saw the construction of a pilot demonstration facility to capture CO 2 emissions and combine them with low grade solid feedstock ( derived from fly ash from coal ...

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