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    • 4. 发明授权
    • Process for the preparation of N-carboxymethyleneanthranilic acid
    • 制备N-羧基亚甲基邻氨基苯甲酸的方法
    • US5811572A
    • 1998-09-22
    • US797599
    • 1997-02-07
    • Theodor PapenfuhsAndreas DierdorfStefan KrauseDoris Neumann-Grimm
    • Theodor PapenfuhsAndreas DierdorfStefan KrauseDoris Neumann-Grimm
    • B01J23/40C07B61/00C07C227/08C07C227/18C07C229/56C07C229/00
    • C07C227/18C07C227/08C07C229/56
    • Process for the preparation of N-carboxymethyleneanthranilic acid esters of the formula (3) ##STR1## by reacting a compound of the formula (1) ##STR2## in which R' is hydrogen or a straight-chain or branched alkyl radical having 1 to 4 carbon atoms and R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are identical or different and independently of one another are hydrogen, halogen, NO.sub.2, a straight-chain or branched alkyl, alkoxy or halogenated alkyl radical having in each case 1 to 6 carbon atoms, with a glyoxylic acid ester of the formula (2) OHC--COOR (2) in which R is a straight-chain or branched alkyl radical having 1 to 20 carbon atoms, phenyl radical or benzyl radical, which are unsubstituted or mono- or polysubstituted by halogen or an alkyl or alkoxy group having in each case 1 to 4 carbon atoms, in the presence of a solvent at 0.degree. to 200.degree. C., optionally separating off the water formed during the reaction, and reducing the reaction product with hydrogen in the presence of a hydrogenation catalyst at a temperature of 0.degree. to 200.degree. C. under a pressure of 1 to 150 bar.
    • 通过使式(1)的化合物(1)其中R'是氢或直链的式(1)化合物或其制备方法制备式(3)的N-羧基亚甲基邻氨基苯甲酸酯的方法 具有1至4个碳原子的支链烷基和R 1,R 2,R 3和R 4相同或不同,彼此独立地为氢,卤素,NO 2,直链或支链烷基,烷氧基或卤代烷基,其各自为 具有式(2)的乙醛酸酯,其中R是具有1至20个碳原子的直链或支链烷基,其中R为直链或支链的烷基,苯基或苄基,其为 在0〜200℃下,在溶剂存在下,卤素或具有1〜4个碳原子的烷基或烷氧基单取代或多取代,任选地分离反应中形成的水​​,以及 在氢化催化剂a存在下,用氢还原反应产物 在0〜200℃的温度下,在1〜150巴的压力下进行。
    • 5. 发明授权
    • Method for cleaning filtration membrane modules and membrane bioreactor system for treating untreated water or wastewater or activated sludge
    • 用于清洁过滤膜组件和膜生物反应器系统的方法,用于处理未经处理的水或废水或活性污泥
    • US08580115B2
    • 2013-11-12
    • US12988667
    • 2009-04-23
    • Stefan KrauseReinhard VoigtPeter Cornel
    • Stefan KrauseReinhard VoigtPeter Cornel
    • C02F9/00
    • B01D65/02B01D65/025B01D2321/2091C02F3/1273C02F2303/16Y02W10/15
    • A method of cleaning filtration modules for the treatment of raw water, or wastewater, or activated sludge, is provided by circulating particles in untreated water. The deposits located on the filter membrane outer surfaces are removed by the mechanical action of the particles, without significantly damaging the membrane. Initially, untreated water, wastewater, or activated sludge is chemically-mechanically pretreated. Then the untreated water or wastewater polluted with biologically active material is discharged into a membrane bioreactor system having a filtration unit including at least one filtration tank. At least one submerged filtration membrane module is present in the filtration tank. The untreated water or wastewater in this filtration tank is filled with particles and circulates inside the filtration tank. The particles are non-porous, biologically resistant polymer particles. Alternatively, a cleaning tank including a circulating fluid containing particles may be provided for the temporary accommodation of the filtration module.
    • 通过在未处理的水中循环颗粒来提供清洁用于处理原水或废水或活性污泥的过滤模块的方法。 通过颗粒的机械作用,位于过滤膜外表面上的沉积物不会明显损坏膜。 最初,未经处理的水,废水或活性污泥进行化学机械预处理。 然后用生物活性物质污染的未处理的水或废水被排放到具有包括至少一个过滤罐的过滤单元的膜生物反应器系统中。 至少一个浸没过滤膜组件存在于过滤罐中。 该过滤槽中未处理的水或废水填充有颗粒并在过滤槽内循环。 颗粒是无孔的,生物耐受的聚合物颗粒。 或者,可以提供包括含有颗粒的循环流体的清洗槽用于过滤模块的临时容纳。
    • 7. 发明申请
    • Method for cleaning filtration membrane modules and membrane bioreactor system for treating untreated water or wastewater or activated sludge
    • 用于清洁过滤膜组件和膜生物反应器系统的方法,用于处理未经处理的水或废水或活性污泥
    • US20110042308A1
    • 2011-02-24
    • US12988667
    • 2009-04-23
    • Stefan KrauseReinhard VoigtPeter Cornel
    • Stefan KrauseReinhard VoigtPeter Cornel
    • B01D65/04C02F3/12
    • B01D65/02B01D65/025B01D2321/2091C02F3/1273C02F2303/16Y02W10/15
    • A method of cleaning filtration modules for the treatment of raw water, or wastewater, or activated sludge, is provided by circulating particles in untreated water. The deposits located on the filter membrane outer surfaces are removed by the mechanical action of the particles, without significantly damaging the membrane. Initially, untreated water, wastewater, or activated sludge is chemically-mechanically pretreated. Then the untreated water or wastewater polluted with biologically active material is discharged into a membrane bioreactor system having a filtration unit including at least one filtration tank. At least one submerged filtration membrane module is present in the filtration tank. The untreated water or wastewater in this filtration tank is filled with particles and circulates inside the filtration tank. The particles are non-porous, biologically resistant polymer particles. Alternatively, a cleaning tank including a circulating fluid containing particles may be provided for the temporary accommodation of the filtration module.
    • 通过在未处理的水中循环颗粒来提供清洁用于处理原水或废水或活性污泥的过滤模块的方法。 通过颗粒的机械作用,位于过滤膜外表面上的沉积物不会明显损坏膜。 最初,未经处理的水,废水或活性污泥进行化学机械预处理。 然后用生物活性物质污染的未处理的水或废水被排放到具有包括至少一个过滤罐的过滤单元的膜生物反应器系统中。 至少一个浸没过滤膜组件存在于过滤罐中。 该过滤槽中未处理的水或废水填充有颗粒并在过滤槽内循环。 颗粒是无孔的,生物耐受的聚合物颗粒。 或者,可以提供包括含有颗粒的循环流体的清洗槽用于过滤模块的临时容纳。