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公开(公告)号：EP1753522A1
公开(公告)日：2007-02-21
申请号：EP05742602.5
申请日：2005-05-13
CPC分类号： B01D61/364 , C01B17/88 , C25B15/08
摘要： A method of enhancing the concentration of a first inorganic compound in a first aqueous solution of a first process of a heavy chemical plant, the method comprising (a) feeding the first solution having the first compound at a first concentration and a first water vapor pressure to an osmotic membrane distillation means comprising a hydrophobic, gas and water vapor permeable membrane separating (i) a first chamber for receiving the first solution, from (ii) a second chamber for receiving a receiver feed aqueous solution having a second water vapor pressure lower than the first water vapor pressure; (b) feeding the receiver aqueous feed solution to the second chamber as to effect transfer of water vapor through the membrane from the first chamber to the second chamber, and to produce (i) a resultant first solution having a second concentration of the first compound greater than the first concentration and (ii) a diluted receiver feed aqueous solution; and (c) collecting the resultant first solution. The apparatus and method are of particular value in electrolytic haloalkali production plants in offering reduced capital and operating re-concentration and dilution costs.
摘要翻译： 一种提高重化学工厂的第一工艺的第一水溶液中的第一无机化合物的浓度的方法，所述方法包括：（a）将具有第一化合物的第一溶液以第一浓度和第一水蒸气压 （i）用于接收第一溶液的第一室，和（ii）用于接收具有第二水蒸气压低于第二水蒸气压的接收器供给水溶液的第二室的疏水性，气体和水蒸汽可渗透膜的渗透膜蒸馏装置 比第一水蒸气压力高; （b）将所述接收器水性进料溶液进料到所述第二室以影响水蒸汽通过所述膜从所述第一室转移到所述第二室，并且（i）产生具有第二浓度的所述第一化合物 大于第一浓度和（ii）稀释的接收器进料水溶液; 和（c）收集得到的第一种溶液。 该装置和方法在电解卤代碱生产装置中提供降低的资本和操作再浓缩和稀释成本方面具有特别的价值。
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公开(公告)号：EP1556528A1
公开(公告)日：2005-07-27
申请号：EP03769094.8
申请日：2003-10-16
摘要： Chlorine is produced by electrolysis of aqueous HC1, in a membrane electrolyzer, using cathodic mediators such as Fe(III) and/or Cu(II) chlorides and a non-catalysed 3-dimensional cathode, with the real surface area at least ten times higher than its projected area. The HCl electrolysis section is combined with an oxidiser for regeneration of the mediator, product water removal step and optional HCl recovery step. Under optimised conditions chlorine can be produced at very high current densities of 30 kA/m2, without initiating undesired H2 evolution reaction at the cathode.
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3.发明授权
公开(公告)号：EP1031023B1
公开(公告)日：2004-07-14
申请号：EP98952463.2
申请日：1998-11-03
IPC分类号： G01N21/35
CPC分类号： G01N21/359 , G01N21/3577
摘要： A method for determining the concentration of anionic species selected from the group consisting of OH , CO3 and HS and of organic species in an aqueous sample solution, said method comprising subjecting said solution to near infrared radiation at a wavelength region of wave numbers selected from about 7,000 to 14,000 cm through a solution path length of at least 3 mm to obtain spectral data for said solution; obtaining comparative spectral data for said anionic species at known concentrations in aqueous solutions; and correlating by multivariate calibration the relationships between said spectral data of said sample solution and said comparative spectral data to determine said concentration of said anionic species in said sample solution. The method is of particular value for use with pulp liquor determination and control in regards to the rapid and accurate determination of the OH , HS and CO3 anionic species and of organic species present in pulp liquor.
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4.发明公开
公开(公告)号：EP1175611A1
公开(公告)日：2002-01-30
申请号：EP00916711.5
申请日：2000-04-04
IPC分类号： G01N21/35
CPC分类号： G01N21/359 , G01N21/3577
摘要： A method for determining the concentration of hydrogen ion, organic anionic species and anionic species selected from the group consisting of OH-, CO3?=, HS-, ClO¿3-, SO4=, S2O3=, polysulphide and peroxide in an aqueous sample solution, said method comprising subjecting said solution to near infrared radiation at a wavelength region of wave numbers selected from about 7,000 to 14,000 cm-1 through a solution path length of at least 3 mm to obtain spectral data for said solution; obtaining comparative spectral data for said anionic species at known concentrations in aqueous solutions; and correlating by multivariate calibration the relationships between said spectral data of said sample solution and said comparative spectral data to determine said concentration of said anionic species in said sample solution. The method is of particular value for use with pulp liquor determination and control.
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公开(公告)号：EP1082168A1
公开(公告)日：2001-03-14
申请号：EP99921095.8
申请日：1999-05-31
申请人： Kvaerner Process Systems,a Division of Kvaerner Canada Inc. , Den Norske Stats Olejeselskap A.S. (Statoil)
发明人： BERRY, J. Patrick , MULVEY, Stewart J. , BAILEY, Adrian G. , THEW, Martin, T. , URDAHL, Olav , WILLIAMS, Trevor, J. , WAYTH, Nicholas, J.
CPC分类号： B03C5/02 , B01D17/045 , B01D17/06
摘要： A compact device for coalescing finely dispersed droplets of a conductive fluid emulsified in a stream of nonconductive fluid by the use of a high intensity electric field acting on the emulsion as it flows through a narrow flow gap under non-laminar flow conditions. The emulsion is introduced into the top of a vertically mounted cylindrical vessel or shell, and flows through one or more narrow, annular flow gaps formed between one or more electrodes, or an internal wall of the device. The broken emulsion is discharged from the bottom of the vessel, after having a short residence time in the high-intensity electrostatic field. The flow of the emulsion in the one or all of the narrow, annular flow gaps is non-laminar to provide substantially smaller equipment size, even with emulsions having high water content therein.
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公开(公告)号：EP1753522A4
公开(公告)日：2007-08-15
申请号：EP05742602
申请日：2005-05-13
CPC分类号： B01D61/364 , C01B17/88 , C25B15/08
摘要： A method of enhancing the concentration of a first inorganic compound in a first aqueous solution of a first process of a heavy chemical plant, the method comprising (a) feeding the first solution having the first compound at a first concentration and a first water vapor pressure to an osmotic membrane distillation means comprising a hydrophobic, gas and water vapor permeable membrane separating (i) a first chamber for receiving the first solution, from (ii) a second chamber for receiving a receiver feed aqueous solution having a second water vapor pressure lower than the first water vapor pressure; (b) feeding the receiver aqueous feed solution to the second chamber as to effect transfer of water vapor through the membrane from the first chamber to the second chamber, and to produce (i) a resultant first solution having a second concentration of the first compound greater than the first concentration and (ii) a diluted receiver feed aqueous solution; and (c) collecting the resultant first solution. The apparatus and method are of particular value in electrolytic haloalkali production plants in offering reduced capital and operating re-concentration and dilution costs.
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公开(公告)号：EP1082168B1
公开(公告)日：2004-08-11
申请号：EP99921095.8
申请日：1999-05-31
申请人： Kvaerner Process Systems, a Division of Kvaerner Canada Inc. , Den Norske Stats Olejeselskap A.S. (Statoil)
发明人： BERRY, J. Patrick , MULVEY, Stewart J. , BAILEY, Adrian G. , THEW, Martin, T. , URDAHL, Olav , WILLIAMS, Trevor, J. , WAYTH, Nicholas, J.
CPC分类号： B03C5/02 , B01D17/045 , B01D17/06
摘要： A compact device for coalescing finely dispersed droplets of a conductive fluid emulsified in a stream of nonconductive fluid by the use of a high intensity electric field acting on the emulsion as it flows through a narrow flow gap under non-laminar flow conditions. The emulsion is introduced into the top of a vertically mounted cylindrical vessel or shell, and flows through one or more narrow, annular flow gaps formed between one or more electrodes, or an internal wall of the device. The broken emulsion is discharged from the bottom of the vessel, after having a short residence time in the high-intensity electrostatic field. The flow of the emulsion in the one or all of the narrow, annular flow gaps is non-laminar to provide substantially smaller equipment size, even with emulsions having high water content therein.
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8.发明公开
公开(公告)号：EP1031023A1
公开(公告)日：2000-08-30
申请号：EP98952463.2
申请日：1998-11-03
IPC分类号： G01N21/35
CPC分类号： G01N21/359 , G01N21/3577
摘要： A method for determining the concentration of anionic species selected from the group consisting of OH-, CO3?= and HS-¿ and of organic species in an aqueous sample solution, said method comprising subjecting said solution to near infrared radiation at a wavelength region of wave numbers selected from about 7,000 to 14,000 cm-1 through a solution path length of at least 3 mm to obtain spectral data for said solution; obtaining comparative spectral data for said anionic species at known concentrations in aqueous solutions; and correlating by multivariate calibration the relationships between said spectral data of said sample solution and said comparative spectral data to determine said concentration of said anionic species in said sample solution. The method is of particular value for use with pulp liquor determination and control in regards to the rapid and accurate determination of the OH-, HS- and CO¿3?= anionic species and of organic species present in pulp liquor.
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