• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Carbonaceous slurries are provided in which the carbonaceous slurry stabilizer is selected from the group of (1) the alkyl ether of a polygalactomannan alone, or in combination with xanthan gum or (2) the hydroxyalkyl ether of a poygalactomannan in combination with xanthan gum, or (3) a mixture of said alkyl ether, said hydroxyalkyl ether and said xanthan gum.
    公开号:SU1491344A3
    申请号:SU853997404
    申请日:1985-12-26
    公开日:1989-06-30
    发明作者:В.Хауленд Уоррен；Е.Арквет Роберт；Шан-Рен-Ву
    申请人:Хенкель Корпорейшн (Фирма)；
    IPC主号:
    专利说明:

    This invention relates to a water suspension suspension.
    The purpose of the invention is to increase the stability of the suspension, which must be stable under dynamic conditions during pumping and loading and under static storage conditions in bulk.
    Coal, coke, rpaijMT, etc. are used as carbon-containing solid particles. Anthracite and semi-anthracite, bituminous fuels with medium and high volatile content, and lignite coals can also be used.
    The coal and gas used in the invention can be obtained in dry or wet form and mixed with a liquid to form a coal-liquid suspension. Coal dp of obtaining a fraction of small particles is preferably subjected to wet grinding by known methods to prevent dust formation and the danger of an explosion. The coal fraction subjected to wet grinding can be crushed either in the presence of a calculated right amount of water, or it can be mixed with an additional amount of water so that it can be easily pumped through pipelines and then mixed with a coarser fraction of sprayed coal to form a slurry coal is water.
    1: o
    with
    four
     CM
    Wave type, iggolzuemo | 1 As a base of WATER in a coal-water suspension according to this invention, it can correspond to any available water, such as mine, artesian, river or lake water, or desalinated ocean water with a rather low content of mineral salts,
    The examples presented illustrate the effectiveness of this water coke slurry.
    Examples 1-8. In each example, the same relative amounts of particles of coal, water, defoamer, surface active agent, and total polymer are used. Only a fraction or relative amount of each polymer component is changed.
    Each mixture is prepared according to the following procedure. The surfactant is thoroughly dissolved in water and the solution is transferred to a rod mill. A foam and a particle of coal are added to this solution. The mill is closed and rotated for 2 hours to achieve full carbon dispersion. To aliquots of the carbon-water mixture obtained in this way, the previously prepared mixtures of polymers (i.e., xanthan and hydroxypropyl resin) are added in the form of a powder using a paddle stirrer rotating at 4-800 rpm.
    The specific identification of the components of the coal suspension, their number is shown in Table 1.
    Stirring is carried out for 30 minutes. After static aging for 16-2A hours, the mixture of sow is stirred for 30 minutes on a paddle stirrer. After that, for each sample, the rheological properties of the suspensions are determined: the rheology of the rapid shear (C OO) and the rheology of the slow shear (0, 10 and 1.02).
    The values of the bulk viscosity for each slurry at the indicated shear rates are listed in Table 2.
    Then the samples are statically maintained at 25 ° C for a week. Thereafter, the stability of the suspensions from the point of view of the combination of particles and the density of the layer is determined by two different methods. At intervals of 1 week after the suspensions are obtained, the viscosity profiles for each suspension are determined. Through D week trial rezul. Viscosity profile measurement profiles show an increase in the bulk viscosity of the dates of all samples in temporary, but the absence of a significant increase in viscosity as a function of the depth of the container for all samples, i.e. very low settling of suspensions.
    After that, the resistance of each suspension to immersion of a glass rod of 6.35 mm, having an additional weight of 77 g, is decoupled. The rod is placed on the filament vertically above the surface of the suspension and allowed to immerse into the suspension.
    The immersion resistance is presented in Table 3 as a percentage of immersion (100% means that the rod has sunk to the bottom of the container, 0% means that the rod cannot pass through the surface of the suspension).
    As can be seen from Table 2, samples containing mixtures of xanthan and hydroxypropellergelur, as a rule (with the exception of the high-speed shear data for example 2), exhibit lower volumetric viscosity than samples containing only xanthan or hydroxypropyliselgurum. This result is unexpected from the point of view of the synergistic effect normally expected in the case of xanthan and oxypropylsielgur. The data in Table 3 shows that the use of a mixture of xanthan and hydroxypropylzelgur 50/50 results in a suspension having excellent stability, measured in units of immersion of the rod in the suspension.
    EXAMPLE 9 A basic, unstabilized mixture of coal and water, having good fluidity, is obtained by dispersing sprayed carbon (PC) in an aqueous solution of a surface-active agent, to which also a hydrocarbon-based defoamer is also added. The mixing apparatus consists of a cylindrical vessel in which there are D baffle plates located at an angle of 90. A four-blade stirrer is located in the center of the vessel. The mixer is rotated at a speed of 1000 rpm, and the pulverized coal is slowly fed into the aqueous solution of the surface-active agent. After loading the entire carbon, stirring is continued for another 30 minutes. Formaldehyde is added for sealing. Ing Ingredients.
    51.91
    from biological growth that can decompose reagents present.
    The composition of the main unstabilized coal – water mixture, from which all recipes are prepared, is listed in Table 4.
    ten
    Polymer stabilizers are added to aliquots of this mixture in the amounts indicated in Table 5. The polymer is added in the form of a dry powder directly to the coal-water is mixture with stirring of medium intensity. Stirring is continued for 30 min dp to achieve complete dissolution and uniform distribution of the polymer. Recipes left - 20
    446
    After overnight viscosity measurement, 220 g of each formulation is transferred into glass vessels with a capacity of 227 g, which is made internally from the inside with solid polymer. The formulations were allowed to stand at room temperature for 10 weeks. The amount of sediment accumulated over time is determined by immersing a small (6.35 mm wide) spatula made of stainless steel in suspension, and besides its own weight, the spatula is affected by very little hand pressure. The depth at which significantly increased resistance to immersion is noted is recorded. The percentage of precipitation is calculated by the formula
    Overall sample height) - depth of spatula spatula) -,. (total sample height)
    The values of the effective volume in the bone at a shear rate of 57.6 and the percentage of precipitation after 4.8 and 10 non-static storage are presented in Table 5.6 (the polymer concentration is indicated in parts per 100 parts of the coal-water mixture; the ratio of admixed components is by weight).
    If blending components are used, the polymer concentration is calculated from the total amount of the mixture.
    The following abbreviations are used in the Tables 5 and 6 for the composition: Guar Gum
    Hydroxypropylguaro gums
    D.S. 0.1HPG-1
    D.S. 0,22HPG-2
    D.S. 0,4HPG-4
    Methylguar resin
    D.S. 0.13MG-1
    D.S. 0.31MG-3
    Xanthan BiopolymerX Degree of Substitution D.S.
    From Table 6 it can be seen that with an increase in the content of methyl guar resin in addition, its efficiency as a stabilizer increases, especially at X / M 40/60, which is quite unexpected; the effectiveness of the methyl guar gum depends on the degree of substitution or the degree of methylation; methyl25 mixture
    guar gum and xantaya more than 30
    effective to prevent precipitation than a mixture of xanthan and guar gum, and also than individually taken xanthan, methylguar gum, hydroxypropyl guar gum or guar gum, this mixture is particularly effective with respect to xanthan gum and methyl guar gum equal to 40:60 and with a degree of substitution with methyl 0.13 as an individual component of metnp-35 guar gum is more effective than guar gum a or hydroxypropyl-guar gum.
    权利要求:
    Claims (1)
    [1]
    Invention Formula
    40
    A water-based slurry based on water with the addition of carbon-containing particles, formaldehyde, a body defoaming agent, an oxyalkylated alkylphenol-based surfactant, and a stabilizer, in order to increase the stability of the suspension.
    as a stabilizer, it contains methylguar gum or its mixture with xanthan gum at a mass ratio of 2: 3-3: 2, or a mixture of hydroxypropyl guar gum with xanthan gum at their mass ratio of 1: 9-6: 4 in the following ratio of components, Mac .Z:
    Carboniferous particles 65.0 or 70.0
    aquo
    0.06-0.1
    0.5 or 0.6 0.05 or 0.35 0.135 or 0.15 Up to 100
    SosGv and rheological properties of a mixture of coal - water
    worm sieve
      I
    Dissolved water. 0x alklylirova alknlphenol (Igopol SO-990).
    Hydrocarbon-based pe saver - colloid 691.
    Taolitsa2 Rheological properties of suspension
    The priority is on pri-, n and to and m 27 .12.84- a mixture of hydroxypropyl guar gum with xanthan gum;
    12.11.85- methylguar gum or its mixture with xanthan gum.
    T b and c
    coal-water mixture
    Components
    Spray coal size 80-85-200
    Ethoxylated noxphenol surfactant
    Formaldehyde Defoamer
    Water (distilled)
    Table3
    Effective viscosity at 57.6 s and percentage of accumulated sediment after 4.8 and 10 weeks of static storage under normal conditions for stabilized coal-water mixtures
    LC I -, - 1
    Spreadsheets
    Effective viscosity at 57.6 s and percentage of accumulated sediment after 4.8 and 10 weeks of static storage under normal conditions for stabilized coal-water mixtures
    Concentration based on the weight of the whole mixture, 7.
    70.0
    0.50
    0.05
    0.135
    29,315
    LC I -, - 1
    with iche ann
    Editor Mi Kelemesh
    Compiled by N. Bogdanova Tehred A. Kravchuk
    Order 3765/59
    Circulation 446
    VNIIPI State Committee for Inventions and Discoveries at the State Committee on Science and Technology of the USSR 113035, Moscow, Zh-35, Raushsk nab. 4/5
     ".",. .. ..., “i.“ .... -....- .- i-w V - - - - - - --- - --- - - - - ----- - -
    Production and publishing plant Patent, Uzhgorod, st. Gagarin, 101.
    Proofreader M.Samborsk
    Subscription
    类似技术:
    公开号 | 公开日 | 专利标题
    FI76589B|1988-07-29|VAT FAST BRAENSLE OCH FOERFARANDE FOER FRAMSTAELLNING AV DENNA.
    US6053954A|2000-04-25|Methods to enhance the characteristics of hydrothermally prepared slurry fuels
    CA1178442A|1984-11-27|Coal-water slurry and method for its preparation
    US4477259A|1984-10-16|Grinding mixture and process for preparing a slurry therefrom
    SU1491344A3|1989-06-30|Water-coal suspension
    US4468232A|1984-08-28|Process for preparing a clean coal-water slurry
    US4650496A|1987-03-17|Process for making a carbonaceous slurry
    US4090853A|1978-05-23|Colloil product and method
    US4478602A|1984-10-23|Carbonaceous oil slurries stabilized by binary surfactant mixtures
    US4498906A|1985-02-12|Coal-water fuel slurries and process for making
    US4415338A|1983-11-15|Aqueous carbonaceous slurries
    EP0124670B1|1987-03-18|Coal-water fuel slurries and process for making same
    US4417902A|1983-11-29|Process for making and composition of low viscosity coal-water slurries
    EP2957623A1|2015-12-23|Carbonaceous material suspension
    SU1545947A3|1990-02-23|Coal-water suspension
    US4306882A|1981-12-22|Carbon slurry fuels
    RU2100267C1|1997-12-27|Method of preparation and transportation of concentrated mixtures of coal and water along pipelines
    KR900004550B1|1990-06-29|Coal slurry composition
    US4645514A|1987-02-24|Coal-aqueous slurry
    EP0339853A1|1989-11-02|Coal slurry composition and treatment
    US4492589A|1985-01-08|Anionic dispersants for aqueous slurries of carbonaceous materials
    SU1554764A3|1990-03-30|Coal-water suspension
    KR870000646B1|1987-04-03|Coal-water slurry
    US4398918A|1983-08-16|Use of ethoxylated dialkyl quaternary ammonium derivatives as suspending agents for coal-oil mixtures
    Pulido et al.1995|Rheology of colombian coal-water slurry fuels: Effect of particle-size distribution
    同族专利:
    公开号 | 公开日
    CA1259244A|1989-09-12|
    PL147385B1|1989-05-31|
    CS252838B2|1987-10-15|
    JPS61179243A|1986-08-11|
    AU575287B2|1988-07-21|
    DE3576356D1|1990-04-12|
    PL147377B1|1989-05-31|
    AU5165185A|1986-07-03|
    US4692169A|1987-09-08|
    PL257106A1|1987-03-09|
    EP0186164A2|1986-07-02|
    EP0186164A3|1986-12-03|
    CS978085A2|1987-02-12|
    EP0186164B1|1990-03-07|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3728173A|1969-10-17|1973-04-17|Intermountain Res & Eng Co Inc|Dense explosive slurry compositions of high energy containing a gum mixture|
    US3748201A|1971-10-08|1973-07-24|Gen Mills Chem Inc|Thickening compositions containing xanthomonas gum and hydroxyalkyl ether of guar gum|
    GB1604216A|1978-03-17|1981-12-02|Hercules Ltd|
    US4242098A|1978-07-03|1980-12-30|Union Carbide Corporation|Transport of aqueous coal slurries|
    US4304906A|1979-09-19|1981-12-08|Merck & Co., Inc.|Heteropolysaccharide S-84|
    US4375358A|1980-09-02|1983-03-01|Conoco Inc.|Fuel slurries of solid carbonaceous material in water|
    US4441889A|1981-01-29|1984-04-10|Gulf & Western Industries, Inc.|Coal-aqueous mixtures|
    AU552664B2|1981-05-29|1986-06-12|Asahi Kasei Kogyo Kabushiki Kaisha|Stabilized coal/oil/water slurry|
    US4415338A|1982-06-10|1983-11-15|Diamond Shamrock Corporation|Aqueous carbonaceous slurries|
    US4436528A|1982-09-17|1984-03-13|Diamond Shamrock Chemicals Company|Aqueous slurries of carbonaceous materials|
    FR2558840B1|1984-01-31|1986-09-26|Rhone Poulenc Spec Chim|AQUEOUS SUSPENSIONS OF SOLID PARTICLES|IT1206704B|1984-05-29|1989-04-27|Anic Spa|FLUIDIFYING AND STABILIZING ADDITIVE AND ITS PREPARATION METHOD.|
    SE8702535D0|1987-06-17|1987-06-17|Bioboat Ab|A POLICEACCHARIDE-BASED COMPOSITION AND ITS USE|
    US6211252B1|1997-07-07|2001-04-03|Exxon Research And Engineering Company|Method for forming aqueous, pumpable fluids from solid carbonaceous materials|
    DE102007008842A1|2007-02-23|2008-08-28|Dow Wolff Cellulosics Gmbh|Production of methyl guar|
    JP2016522258A|2013-06-18|2016-07-28|ルブリゾル アドバンスド マテリアルズ， インコーポレイテッド|Colloidally stable dispersions based on modified galactomannans|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    US68678784A| true| 1984-12-27|1984-12-27|
    US06/795,521|US4692169A|1984-12-27|1985-11-12|Use of etherified polygalactomannan gums as carbonaceous slurry stabilizers|
    [返回顶部]