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    • 41. 发明公开
    • Cloud point and pour point analyser
    • 浊点和倾点分析仪
    • EP0723155A3
    • 1996-08-07
    • EP95309048.7
    • 1995-12-12
    • BETZ EUROPE, INC.
    • Juneau, Randy J.
    • G01N33/28G01N25/04
    • G01N33/2811
    • There is disclosed in preferred embodiments an apparatus and a method for automatic determination of cloud point temperature and pour point temperature of a petroleum fraction. The apparatus is comprised of a receptacle (11) for holding a sample of the petroleum fraction, a light source (12), a light detector (13), heaters (15), coolers (16) and a proximity sensor combined with a motion indicator to determine cloud and pour point temperature. The apparatus preferably has thermocouples to determine the temperature of samples within the container as the sample is heated and cooled. Measurements of light refraction are used to determine cloud point temperature. Detection of the freezing in place of a motion indicator is used to determine pour point temperature. The apparatus is particularly useful for determining the cloud point and pour point temperatures of middle distillate petroleum fuels and the pour point temperature of dark oils and for determining the amount of pour point depressant needed to achieve desired cloud and pour point temperatures in a fuel.
    • 在优选实施例中公开了用于自动确定石油馏分的浊点温度和倾点温度的设备和方法。 该设备包括用于容纳石油馏分样品的容器(11),光源(12),光检测器(13),加热器(15),冷却器(16)以及与运动相结合的接近传感器 指标来确定云和倾点温度。 该设备优选地具有热电偶以在样品被加热和冷却时确定容器内样品的温度。 测量光折射用于确定浊点温度。 使用代替运动指示器的冷冻检测来确定倾点温度。 该设备对于确定中间馏分石油燃料的浊点和倾点温度以及暗油的倾点温度以及确定在燃料中达到所需的浊点和倾点温度所需的倾点下降剂的量特别有用。
    • 43. 发明公开
    • Water soluble graft copolymers for deinking process water clarification
    • 的方法的水溶性接枝共聚物为特别脱色澄清水
    • EP0702037A1
    • 1996-03-20
    • EP95304177.9
    • 1995-06-16
    • BETZ EUROPE, INC.
    • Harrington, John C.Schuster, Michael A.Liao, Wen P.Chen, Fu
    • C08F290/04C02F1/54
    • C02F1/54C08F290/046
    • A method for clarifying deinking process water in a papermaking process by using a water soluble graft copolymer having the structure:

      wherein E is the repeat unit obtained after polymerization of an α, β ethylenically unsaturated compound, the molar percentage of a:b is from about 95:5 to 5:95, with the proviso that the sum of a and b equals 100%; G comprises the structure:

         wherein

      is the repeating unit of a cationic monomer, and maybe the same or different througout.
      R₁, R₂ and R₃ are the same or different
      and are hydrogen or a lower alkyl group having C₁ to C₃. F is a salt of an ammonium cation and the molar percentage of c:d is from 95:5 to 5:95 with the proviso that the sum of c and d equals 100%.
    • 一种用于通过使用具有以下结构的水溶性接枝共聚物在造纸处理澄清脱墨过程的水的方法: worin E是阿尔法的聚合后得到的重复单元,β-烯属不饱和化合物中,a的摩尔百分比:乙 是从约95:5至5:95,条件做的和b之和等于100%; G包括以下结构: worin 是阳离子单体的重复单元,并且可以相同或不同througout。 R1,R2和R3相同或不同,并且是氢或具有1〜3的低级烷基。 F是铵阳离子和c的摩尔百分比的盐:d为从95:5至5:95,其条件没有c的和以及d等于100%。
    • 46. 发明公开
    • Method of inhibiting scale and controlling corrosion in cooling water systems
    • 抑制水垢和控制冷却水系统腐蚀的方法
    • EP0674022A2
    • 1995-09-27
    • EP95301604.5
    • 1995-03-10
    • BETZ EUROPE, INC.
    • Freese, Donald ToddBair, Keith AlanPerez, Libardo AquilesChen, Fu
    • C23F11/173C02F5/10
    • C02F5/10C23F11/173C23F14/02
    • There is disclosed a method for simultaneously controlling the deposition of scale and the formation of corrosion in a cooling water system comprising adding to the system (i) a water soluble copolymer having the structure :

      wherein E comprises the repeat unit obtained after polymerization of an alpha, beta ethylenically unsaturated monomer, R 1 is H or lower (C 1- C 4 ) alkyl, R 2 is (CH 2 -CH 2 -O) n ,

      or mixture of both, n is an integer of from 1 to about 40 R 3 is H, lower (C l -C 4 alkyl or an acetate, c is the molar percentage being between 0-95 molar %, d is the molar percentage being between 100-5 molar %, c and d should add up to 100% ; or

      (ii) a water soluble terpolymer having the structure :

      where E comprises the repeat unit obtained after polymerization of an alpha, beta ethylenically unsaturated monomer, and wherein R 1 is H or lower (C 1 -C 4 ) alkyl, F is H 2 or O, M is a water soluble cation, R 2 is (CH 2 -CH 2 -O) n ,

      or a mixture of both, n is an integer of from 1 to about 40, R 3 is H lower (C 1 -C 4 ) alkyl or an acetate.
    • 公开了一种用于同时控制冷却水系统中水垢沉积和腐蚀形成的方法,该方法包括向系统中加入(i)具有以下结构的水溶性共聚物:其中E包括在α-烯烃聚合后获得的重复单元 ,β烯键式不饱和单体,R 1为H或低级(C 1 -C 4)烷基,R 2为(CH 2 -CH 2 -O)n或两者的混合物,n为1至约40的整数,R 3为H, C 1 -C 4烷基或乙酸酯,c是摩尔百分比在0-95摩尔%之间,d是摩尔百分比在100-5摩尔%之间,c和d应该合计达100%;或者(ii)水 其中E包含在α,β烯键式不饱和单体聚合后获得的重复单元,并且其中R1是H或低级(C1-C4)烷基,F是H2或O,M是水溶性阳离子 ,R2是(CH2-CH2-O)n或两者的混合物,n是1至约40的整数,R3是低级(C1-C 4)烷基或乙酸酯。