• 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:
    Dispersion which comprises water, pulverized coal and additives and is stable in storage, can be pumped and can be burned by conventional technique. The coal content of the dispersion ranges from 60 to 80% by weight and the dispersion contains at least one amphiphile substance adsorbed to the surfaces of the coal particles, which provides repulsion between the coal particles by hydration forces, and also polymers cooperating with said substance, at least one of said polymers containing segments of hydrophobic as well as hydrophilic character.
    公开号:SU1303032A3
    申请号:SU833580949
    申请日:1983-04-01
    公开日:1987-04-07
    发明作者:Леннард Ларс；Линдман Бьерн
    申请人:Флуидкарбон Интернэшнл Аб (Фирма)；
    IPC主号:
    专利说明:

    The invention relates to an aqueous dispersion of coal that can be used to produce liquid and gaseous products and to produce electricity and heat.
    The purpose of the invention is to improve flocculation and sedimentation resistance and improve the rheological properties of coal dispersion.
    The aqueous carbon dispersion is prepared by mixing the lecithin in the form of an aqueous emulsion or solution in an organic solvent with powdered coal in water, followed by the addition of a polymer. The organic solvent can be removed from the dispersion thus obtained.
    Example 1. In this way, an aqueous dispersion of coal is prepared, containing, in wt%: powdered coal 65, lecithin, used in the form of an aqueous emulsion 0.05; copolymer 0.5, polyethylene oxide 70, pipropylene oxide, having the molon mol.m. 14000 30, water 34.45.
    Dispersion has
    following properties:
    120
    Viscosity, cp
    Stability:
    flocculation Yes
    to subsidence, ned 2
    The comparison is carried out according to the known dispersion.
    If 0.5 wt.% Of polyethylene oxide is used as polymer and mixed with 65 wt.% Of powdered coal and 34.5 wt.% Of water, the dispersion obtained exhibits a certain tendency to flocculation, and the stability to sedimentation is 3 days
    Example 2. Example 1 is repeated with the difference that 60% by weight of powdered coal is mixed with 0.5% by weight of lecithin and from a) 0.1% by weight of naphthyl polyethylene oxide mol.m. 5000 and S) 3 sat.% | 5-naphtsh1 polyethylene oxide mol.m. 5000. In the case of a) the water content in the resulting dispersion is 39.4 wt.%, And in the case of S) it is 36.5 May. In case a) the viscosity of the water dispersion is 208 cP, and in the case of Sj 296 cP. The dispersion according to a and S is stable to flocculation, and its stability to sedimentation is 6 and 8 weeks. respectively.
    EXAMPLE 3 Example 1 is repeated with the difference that 70% by weight of powdered coal is mixed with 0.21 May. nonylphenyl polyethylene oxide mol.m. 4500, 0.01 wt.% Lecithin (use
    in the form of a 20% aqueous emulsion) and 29.78% by weight of water. The resulting aqueous dispersion has a viscosity of 490 cP and is resistant to flocculation. Its stability to settling 2 weeks,
    EXAMPLE 4 Example 1 is repeated with the difference that 70% by weight of powdered coal is mixed with 0.05 May. % lecithin (used as a solution in alcohol, which is then removed), 0.5 wt.% polymer (table) and 29.45 wt.% water.
    The table summarizes the viscosity of the resulting aqueous dispersion.
    Viscosity
    Polymer
    0
    five
    0
    five
    one
    0
    0
    Adduct 13.3.mas.% Of polymerized tall oil mol.m. May 300 and 86.7, 7 ,, polyethylene oxide mol.m. 6300
    IIadduct 58.3 wt.% Of polyethylene oxide and 41.7 wt.% Of nonylphenyl-cipropylene oxide, mol. 2200
    IIIAdduct 38.5 wt.% | 3-naphthol polypropylene-sid and 61.5 wt.% Polyethylene oxide mol.m. 4800
    IVAdduct 50 May.% Poly-polyoxide e mol.m. 6000 and 50 May.% Polyethylene oxide mol.m. 8,000
    Vsmey polymers I and
    II (1: 1)
    VIs of polymers I and
    III (1: 1)
    VIICards of polymers 1 and IV (1: 1)
    VIIICards of Polymers II and 111 (1: 1)
    Ix
    Laughs Polymers II and IV (1: 1)
    five
    Laugh Polymers and IV (1: 1)
    III
    water output of EP
    320
    270
    240
    350,330
    280
    270 280
    270 280
     Mol.m. Mol.m.
    4000 2330.
    The dispersions of Example 4 are stable to flocculation and their stability to the settling of 2 shoes.
    Example 5, Example 1 is repeated, with the difference that they use 80 May.% Powder coal. The resulting water dispersion has a viscosity of 7300 cP and exhibits stability to flocculation. In addition, the settling stability is 2 months.
    权利要求:
    Claims (1)
    [1]
    Invention Formula
    Aqueous dispersion of coal containing powdered coal, polymer and water, characterized in that, in order to increase flock resistance. Editor N. Rogulich
    Compiled by N. Bogdanova Tehred I. Popovich.
    Order 1227/57 Edition 464 Subscription
    VNIIPI USSR State Committee
    for inventions and discoveries 113035, Moscow, Zh-35, Rautska nab. 4/5
    Production and printing company, Uzhgorod, st. Project, 4
    It also contains nonylphenyl poly (ethylene oxide) or / 2-naphthyl poly (ethylene oxide) mol.m. 4500-14000, or a copolymer of mol. Lecithin with the following ratio of components.
    Powder Coal
    Polymer
    Lecithin
    Water
    May.%:
    60-80
    Oh, 1h; oh
    0.01-0.5 Up to 100
    Proofreader M. Demchik
    类似技术:
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    同族专利:
    公开号 | 公开日
    BR8207824A|1983-09-06|
    AT25398T|1987-02-15|
    FI831100A0|1983-03-30|
    NO160587C|1989-05-03|
    AU8333582A|1983-02-22|
    SE8104645L|1983-02-04|
    FI831100L|1983-03-30|
    DK152374C|1988-08-01|
    NO160587B|1989-01-23|
    WO1983000500A1|1983-02-17|
    DK146683A|1983-03-30|
    NO831118L|1983-03-28|
    EP0084535B1|1987-02-04|
    DK146683D0|1983-03-30|
    AU557810B2|1987-01-08|
    FI75861B|1988-04-29|
    DK152374B|1988-02-22|
    SE436136B|1984-11-12|
    EP0084535A1|1983-08-03|
    FI75861C|1988-08-08|
    DE3275385D1|1987-03-12|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    SE417327B|1977-05-31|1981-03-09|Scaniainventor Ab|FLAMMABLE MEDIUM CONSISTING OF PULVERIZED COAL, WATER AND AS A DISPERSIBLE POLYACRYLATE OR POLYPHOSPHATE AND PROCEDURES FOR THE PRODUCTION OF IT|
    JPS5643394A|1979-09-14|1981-04-22|Lion Corp|Dispersant for mixed fuel|
    JPS5657888A|1979-10-17|1981-05-20|Lion Corp|Dispersing agent for mixed fuel|
    JPS5657887A|1979-10-17|1981-05-20|Lion Corp|Dispersing agent for mixed fuel|WO1983003617A1|1982-04-05|1983-10-27|Stigsson, Lars, Lennart|Coal-water dispersion and method of the manufacture thereof|
    SE8202878L|1982-05-07|1983-11-08|Carbogel Ab|PUMPABLE WATER SLOPE OF A SOLID FUEL AND WAY TO PREPARE|
    SE8202879L|1982-05-07|1983-11-08|Carbogel Ab|WATER SLUSHING OF A SOLID FUEL AND KITCHEN AND MEANS OF PREPARING THEREOF|
    US4472170A|1982-12-27|1984-09-18|The Procter & Gamble Company|Coal-water slurry compositions|
    SE450690B|1983-03-18|1987-07-20|Bergvik Kemi Ab|DISPERSIBLE FOR SOLID PARTICLES IN THE WATER AND APPLICATION OF THE DISPERSIBLE FOR DISPERSING COPPER PARTICLES|
    US4713086A|1984-03-02|1987-12-15|Amax Inc.|Oil-compatible coal/water mixtures|
    US4592760A|1985-01-22|1986-06-03|Merck & Co., Inc.|Coal slurry|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    SE8104645A|SE436136B|1981-08-03|1981-08-03|COOL-WATER DISPERSION WITH ADDITIVE COMPOSITION OF SWITZERIONIC TENSID AND CONNECTING HYDROPHILIC POLYMERS|
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