COAL-WATER SLURRY AND METHOD FOR ITS PREPARATION.
    2.
    发明公开
    COAL-WATER SLURRY AND METHOD FOR ITS PREPARATION. 失效
    FOR ITS水煤浆MUD和方法。

    公开(公告)号:EP0037832A4

    公开(公告)日:1982-03-10

    申请号:EP80902330

    申请日:1981-05-04

    Inventor: FUNK JAMES E

    CPC classification number: C21B5/004 C10L1/326 Y02P10/138 Y10S48/07

    Abstract: A pipeline pumpable coal-water slurry having a novel combination of coal particles and carrier water is prepared by a method wherein the particle sizes and their distribution are controlled in accordance with a particle size distribution formula which is especially beneficial for providing a novel coal compact with a minimum amount of void space between particles and a maximum amount of particle surface area with an advantageous amount of colloidal sized particles present. These features combine to enhance the dispersing effects generated by electrolytes and/or dispersing agents selected and added to the coal compact and/or slurry to provide a near maximum zeta potential to the particles in the slurry and to provide low viscosity to the resulting yield pseudoplastic coal-water slurry. Brookfield viscosities obtained, e.g. 1000 cps, or less, at 60 rpm with 75 wgt.% coal, dry basis, make the coal-water slurry especially advantageous for transport by pipeline over long distances. The coal-water slurry can be provided at a high coal content so that the slurry can be burned directly without need for dewatering at its destination.

    3.
    发明专利
    未知

    公开(公告)号:BR8207802A

    公开(公告)日:1983-09-06

    申请号:BR8207802

    申请日:1982-07-26

    Inventor: FUNK JAMES E

    Abstract: A deashed coal-water slurry and process for preparing the same containing 65-85 percent of solids and 0.01-2.4 weight percent of dispersing agent. The slurry is comprised of a coal compact whose coal particles have a particle size distribution in substantial accordance with a specified formula. The coal-water slurry has a relatively low viscosity of less than 4,000 centipoise at a 75 percent solids content and, when it is pumped at either a constant or an increasing shear rate, its viscosity decreases. Also disclosed are a pumping process and an electrophoretic deashing cell and process.

    SLURRY OF COAL-WATER-ANIONIC ORGANIC SURFACTANT

    公开(公告)号:CA1107958A

    公开(公告)日:1981-09-01

    申请号:CA298799

    申请日:1978-03-13

    Inventor: FUNK JAMES E

    Abstract: SLURRY OF COAL-WATER-ANIONIC ORGANIC SURFACTANT This invention relates to a method for making and utilizing a novel partially de-ashed, pseudoplastic coal-water slurry for pumpline conveyance to coal-water slurry combustion and gasification processes. The novel coal-water slurry is deflocculated while retaining pseudoplastic rheology by adding to pulverized coal particles dispersed in water a deflocculating amount of an anionic organic surfactant, preferably in the presence of alkali.

    COAL-WATER SLURRY
    6.
    发明专利

    公开(公告)号:DE3273571D1

    公开(公告)日:1986-11-06

    申请号:DE3273571

    申请日:1982-07-26

    Inventor: FUNK JAMES E

    Abstract: A deashed coal-water slurry and process for preparing the same containing 65-85 percent of solids and 0.01-2.4 weight percent of dispersing agent. The slurry is comprised of a coal compact whose coal particles have a particle size distribution in substantial accordance with a specified formula. The coal-water slurry has a relatively low viscosity of less than 4,000 centipoise at a 75 percent solids content and, when it is pumped at either a constant or an increasing shear rate, its viscosity decreases. Also disclosed are a pumping process and an electrophoretic deashing cell and process.

    8.
    发明专利
    未知

    公开(公告)号:IT8319308D0

    公开(公告)日:1983-01-27

    申请号:IT1930883

    申请日:1983-01-27

    Inventor: FUNK JAMES E

    Abstract: A process for burning a carbonaceous slurry is provided. In this process, a high-solids content carbonaceous slurry with a specified particle size distribution and specified other properties is provided. Thereafter, the slurry is atomized and burned.

    GRINDING MIXTURE AND PROCESS FOR PREPARING A SLURRY THEREFROM

    公开(公告)号:CA1220338A

    公开(公告)日:1987-04-14

    申请号:CA447909

    申请日:1984-02-21

    Inventor: FUNK JAMES E

    Abstract: A grinding mixture is disclosed which can be used to prepare a high density, stable, carbonaceous solids-liquid slurry which has a relatively low viscosity. The grinding mixture has a pi of 5 to 12 and contains about 60 to 82 volume percent of solid carbonaceous materiel, from about 18 to 40 volume percent of carrier liquid, and from about 0.01 to about 4.0 weight percent of dispersing agent.

    COAL-WATER SLURRY AND METHOD FOR ITS PREPARATION

    公开(公告)号:CA1178442A

    公开(公告)日:1984-11-27

    申请号:CA408562

    申请日:1982-07-30

    Inventor: FUNK JAMES E

    Abstract: A deashed coal-water slurry and process for preparing the same containing 65-85 percent of solids and 0.01 - 2.4 weight percent of dispersing agent. The slurry is comprised of a coal compact whose coal particles have a particle size distribution in substantial accordance with a specified formula. The coal-water slurry has a relatively low viscosity of less than 4,000 centipoise at a 75 percent solids content and, when it is pumped at either a constant or an increasing shear rate, its viscosity decreases. Also disclosed are a pumping process and an electrophoretic deashing cell and process.

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