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    • 5. 发明公开
    • Cloud point and pour point analyser
    • 用于确定浊点和倾石油馏分的点的方法和装置
    • EP0723155A2
    • 1996-07-24
    • 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.
    • 有在装置和用于自动确定浊点温度的方法的优选实施例光盘游离缺失和倒的石油馏分的点温度。 所述装置被用于保持石油馏分的样品所包含的容器(11)的,光源(12),光检测器(13),加热器(15),冷却器(16)和接近传感器与运动相结合 指示器确定性矿浊点和倾点温度。 该设备优选地具有热电偶确定性矿样品的容器内的温度作为样品被加热和冷却。 光折射的测量值被用于确定性地矿浊点温度。 代替运动指示器的冻结的检测被用于确定性地矿倾点温度。 该装置是用于确定采矿浊点是特别有用的,并倾中间馏出石油燃料的点的温度和倾暗油点温度和用于确定性采矿的量倾以实现期望的云所需点下降和在燃料倾点温度。
    • 7. 发明公开
    • Method of inhibiting scale and controlling corrosion in cooling water systems
    • Verfahren zur Inhibierung von Inkrustation and Korrosion inwässrigenKühlsysteme。
    • EP0674022A3
    • 1995-11-15
    • 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水垢沉积和在冷却水体系中形成腐蚀的方法,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包含聚合后获得的重复单元 的α,β-烯键式不饱和单体,R1是H或更低(C1-C4)烷基,R2是(CH2-CH2-O)n,或两者的混合物,n是从1到abou的整数 t 40,R 3为H低级(C 1 -C 4)烷基或乙酸酯。
    • 8. 发明公开
    • Felt conditioner
    • 毛毡调理剂
    • EP0666369A2
    • 1995-08-09
    • EP95300079.1
    • 1995-01-06
    • BETZ EUROPE, INC.
    • Khan, Abdul Q.Cowart, Jeffrey R.Curham, Kevin D.
    • D21H21/02
    • D21H21/02D21H11/14D21H21/24D21H23/50Y10S162/04
    • A method is disclosed for conditioning the felts in a papermaking process utilizing deinked secondary fiber in the furnish by adding a felt conditioner consisting of from 5-33% of a nonionic surfactant, from 5-33% of a dispersant, or blends thereof, with the remainder water; wherein the nonionic surfactant is selected from the group consisting of ethoxylated nonylphenols having moles of ethoxylation of from 7.5 to 30 and an HLB of about 12 to 17.2 and di-alkyl phenol ethoxylates having moles of ethoxylation of from 15 to 24 and an HLB of about 13 to 15.1; and wherein the dispersant is selected from the group consisting of the sodium salt of naphthalene sulfonate formaldehyde-condensate having an average molecular weight of from about 700 to 3500, the potassium salt of polymerized alkyl naphthalene sulfonic acid having an average molecular weight of approximately 1000, or the sodium or ammonium salt of lingosulfonate. Additionally, and optionally, from 1 to 5% of an alkylether hydroxypropyl sultaine may be added to enhance performance.
    • 公开了一种用于在造纸过程中使用脱墨的二次纤维在造纸过程中调节毛毡的方法,通过将由5-33%的非离子表面活性剂,5-33%的分散剂或其混合物组成的毛毡调理剂与 剩余的水; 其中非离子表面活性剂选自乙氧基化壬基苯酚,其乙氧基化度为7.5-30,HLB为约12-17.2,二烷基酚乙氧基化物的乙氧基化度为15-24,HLB约为 13至15.1; 并且其中分散剂选自平均分子量为约700-3500的萘磺酸盐甲醛缩合物的钠盐,平均分子量约1000的聚合的烷基萘磺酸的钾盐, 或芳基磺酸钠或铵盐。 此外,并且任选地,可以加入1至5%的烷基醚羟丙基磺基甜菜碱以增强性能。