Bituminous emulsions
    2.
    发明公开
    Bituminous emulsions 失效
    沥青乳液。

    公开(公告)号:EP0162591A1

    公开(公告)日:1985-11-27

    申请号:EP85302849.6

    申请日:1985-04-24

    IPC分类号: C08J3/02 C08L95/00

    摘要: @ An HIPR emulsion of bitumen in water is prepared by a method which comprises directly mixing 70 to 98% by volume of bitumen having a viscosity in the range 200 to 500,000 mPa.s at the mixing temperature with 30 to 2% by volume of an aqueous solution of an emulsifying surfactant, percentages being expressed as percentages by volume of the total mixture. Mixing is effected under low shear conditions in the range 10 to 1,000 reciprocal seconds in such manner that an emulsion is formed comprising highly distorted bitumen droplets having mean droplet diameters in the range 2 to 50 micron separated by thin films of water.
    The emulsions can be cut back to provide stable emulsions of lower bitumen content which are useful in road- making and the formation of protective coatings.

    摘要翻译: 通过一种方法制备沥青在水中的HIPR乳液,该方法包括在混合温度下将70至98体积%的具有200至500,000mPa.s的粘度的沥青与30至2体积%的水溶液 乳化表面活性剂的溶液,百分比表示为总混合物的体积百分比。 在低剪切条件下在10至1000个倒数秒的范围内进行混合,使得形成包含高度变形的沥青液滴的乳液,其具有由薄膜水分离的2至50微米的平均液滴直径。 乳液可以被切断以提供可用于道路制造和形成保护性涂层的较低沥青含量的稳定乳液。

    Preparation of emulsions
    3.
    发明公开
    Preparation of emulsions 失效
    生产乳液。

    公开(公告)号:EP0156486A2

    公开(公告)日:1985-10-02

    申请号:EP85300998.3

    申请日:1985-02-14

    IPC分类号: F17D1/17 B01F3/10

    摘要: An HIPR (high internal phase ratio) emulsion of oil in water is prepared by directly mixing 70 to 98% by volume of a viscous oil having a viscosity in the range 200 to 250,000 mPa.s at the mixing temperature with 30 to 2% by volume of an aqueous solution of an emulsifying surfactant or an alkali, percentages being expressed as percentages by volume of the total mixture. Mixing is effected under low shear conditions in the range 10 to 1,000 reciprocal seconds in such manner that an emulsion is formed comprising highly distorted oil droplets having mean droplet diameters in the range 2 to 50 micron separated by thin interfacial films.
    The emulsions are much less viscous than the oils from which they are prepared and may, optionally after dilution, be pumped through a pipeline.
    Viscous crude oils may be transported by this method.

    Method for breaking emulsions
    4.
    发明公开
    Method for breaking emulsions 失效
    破乳方法

    公开(公告)号:EP0414424A3

    公开(公告)日:1991-10-02

    申请号:EP90308837.5

    申请日:1990-08-10

    IPC分类号: B01D17/04

    摘要: A method for recovering the surfactant from a dispersion or emulsion of oil and water containing a temperature sensitive surfactant which method comprises the steps of heating the dispersion or emulsion to a temperature above the cloud point of the surfactant under conditions of temperature and aqueous phase salinity such that the dispersion or emulsion breaks and separates into an oil layer, an aqueous layer and a surfactant layer, and recovering the surfactant layer. The recovered surfactant may be recycled for use in preparing further quantities of dispersion or emulsion, thus rendering the operation more economic.

    Method of determining thickness of a coating
    5.
    发明公开
    Method of determining thickness of a coating 失效
    确定涂层厚度的方法

    公开(公告)号:EP0660077A2

    公开(公告)日:1995-06-28

    申请号:EP94309599.2

    申请日:1994-12-20

    IPC分类号: G01B11/06

    CPC分类号: G01B11/065

    摘要: A method for determining the thickness of a coating on a coated substrate which comprises

    (a) providing an incident light,
    (b) polarising the incident light,
    (c) exposing the coated substrate to the polarised incident light such that the light is reflected from the substrate,
    (d) detecting and measuring the state of polarisation of the reflected light ; and
    (e) analysing the results obtained from step (d).

    摘要翻译: (a)提供入射光,(b)使入射光极化,(c)将涂覆的基底暴露于极化的入射光,使得光从 (d)检测并测量反射光的偏振状态; 和(e)分析从步骤(d)获得的结果。

    Preparation of emulsions
    6.
    发明公开
    Preparation of emulsions 失效
    乳剂的制备

    公开(公告)号:EP0156486A3

    公开(公告)日:1985-11-21

    申请号:EP85300998

    申请日:1985-02-14

    IPC分类号: F17D01/17 B01F03/10

    摘要: An HIPR (high internal phase ratio) emulsion of oil in water is prepared by directly mixing 70 to 98% by volume of a viscous oil having a viscosity in the range 200 to 250,000 mPa.s at the mixing temperature with 30 to 2% by volume of an aqueous solution of an emulsifying surfactant or an alkali, percentages being expressed as percentages by volume of the total mixture. Mixing is effected under low shear conditions in the range 10 to 1,000 reciprocal seconds in such manner that an emulsion is formed comprising highly distorted oil droplets having mean droplet diameters in the range 2 to 50 micron separated by thin interfacial films. The emulsions are much less viscous than the oils from which they are prepared and may, optionally after dilution, be pumped through a pipeline. Viscous crude oils may be transported by this method.

    Method for breaking emulsions
    7.
    发明公开
    Method for breaking emulsions 失效
    Verfahren zum Brechen von Emulsionen。

    公开(公告)号:EP0414424A2

    公开(公告)日:1991-02-27

    申请号:EP90308837.5

    申请日:1990-08-10

    IPC分类号: B01D17/04

    摘要: A method for recovering the surfactant from a dispersion or emulsion of oil and water containing a temperature sensitive surfactant which method comprises the steps of heating the dispersion or emulsion to a temperature above the cloud point of the surfactant under conditions of temperature and aqueous phase salinity such that the dispersion or emulsion breaks and separates into an oil layer, an aqueous layer and a surfactant layer, and recovering the surfactant layer.
    The recovered surfactant may be recycled for use in preparing further quantities of dispersion or emulsion, thus rendering the operation more economic.

    摘要翻译: 一种从含有温度敏感性表面活性剂的油和水的分散体或乳液中回收表面活性剂的方法,该方法包括以下步骤:在温度和水相盐度条件下将分散体或乳液加热到高于表面活性剂浊点的温度, 分散体或乳液破裂并分离成油层,水层和表面活性剂层,并回收表面活性剂层。 回收的表面活性剂可以再循环用于制备更多量的分散体或乳液,从而使操作更经济。

    Method of determining thickness of a coating
    8.
    发明公开
    Method of determining thickness of a coating 失效
    薄膜的膜厚测量方法。

    公开(公告)号:EP0660077A3

    公开(公告)日:1996-11-20

    申请号:EP94309599.2

    申请日:1994-12-20

    IPC分类号: G01B11/06

    CPC分类号: G01B11/065

    摘要: A method for determining the thickness of a coating on a coated substrate which comprises
    (a) providing an incident light, (b) polarising the incident light, (c) exposing the coated substrate to the polarised incident light such that the light is reflected from the substrate, (d) detecting and measuring the state of polarisation of the reflected light ; and (e) analysing the results obtained from step (d).