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1.发明授权
公开(公告)号：US5106425A
公开(公告)日：1992-04-21
申请号：US659800
申请日：1991-02-22
CPC分类号： C23G5/04 , H05K3/26 , Y10S203/17
摘要： A method for maintaining a flammable solvent in a nonflammable environment involves covering the flammable solvent with a nonflammable vapor blanket provided by a nonflammable solvent, such that vapors from the flammable and nonflammable solvents form a nonflammable gaseous mixture in the blanket. Such a method is used in removal of both oil-based and polar contaminants to control the flammability potential of an alcohol solvent. An apparatus for cleaning articles using fluorocarbon and alcohol solvents includes a chamber having a plurality of compartments for containing the solvents and a bounded vapor space. At least one of the compartments contains liquid fluorocarbon and at least one other will contain liquid alcohol. The solvents voltalize into the bounded vapor space to provide a nonflammable vapor blanket over the alcohol-containing compartment. Volatilized alcohol is mixed with the volatilized fluorocarbon to form a nonflammable mixture which is purified and separated, and the recovered fluorocarbon can be reused in subsequent cleaning operations.
摘要翻译： 将易燃溶剂保持在不可燃环境中的方法包括用不燃性溶剂提供的不可燃蒸汽床覆盖可燃溶剂，使得来自可燃和不可燃溶剂的蒸汽在橡皮布中形成不可燃气体混合物。 这种方法用于除去油基和极性污染物以控制醇溶剂的可燃性潜力。 使用碳氟化合物和醇溶剂清洁制品的装置包括具有多个用于容纳溶剂的隔室和有界蒸气空间的室。 至少一个隔室含有液体碳氟化合物，至少另外一个将含有液态醇。 溶剂挥发到有界的蒸汽空间中，以在含酒精的隔室上提供不可燃蒸气床。 将挥发的醇与挥发的碳氟化合物混合以形成不可燃混合物，其被纯化和分离，并且回收的碳氟化合物可以在随后的清洁操作中重复使用。
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公开(公告)号：US5113883A
公开(公告)日：1992-05-19
申请号：US659806
申请日：1991-02-22
摘要： A method for maintaining a flammable solvent in a nonflammable environment involves covering the flammable solvent with a nonflammable vapor blanket provided by a nonflammable solvent, such that vapors from the flammable and nonflammable solvents form a nonflammable gaseous mixture in the blanket. Such a method is used in removal of both oil-based and polar contaminants to control the flammability potential of an alcohol solvent. An apparatus for cleaning articles using fluorocarbon and alcohol solvents includes a chamber having a plurality of compartments for containing the solvents and a bounded vapor space. At least one of the compartments contains liquid fluorocarbon and at least one other will contain liquid alcohol. The solvents voltalize into the bounded vapor space to provide a nonflammable vapor blanket over the alcohol-containing compartment. Volatilized alcohol is mixed with the volatilized fluorocarbon to form a nonflammable mixture which is purified and separated, and the recovered fluorocarbon can be reused in subsequent cleaning operations.
摘要翻译： 将易燃溶剂保持在不可燃环境中的方法包括用不燃性溶剂提供的不可燃蒸气床覆盖可燃溶剂，使得来自可燃和不可燃溶剂的蒸气在橡皮布中形成不可燃气体混合物。 这种方法用于除去油基和极性污染物以控制醇溶剂的可燃性潜力。 使用碳氟化合物和醇溶剂清洁制品的装置包括具有多个用于容纳溶剂的隔室和有界蒸气空间的室。 至少一个隔室含有液体碳氟化合物，至少另外一个将含有液态醇。 溶剂挥发到有界的蒸汽空间中，以在含酒精的隔室上提供不可燃蒸气床。 将挥发的醇与挥发的碳氟化合物混合以形成不可燃混合物，其被纯化和分离，并且回收的碳氟化合物可以在随后的清洁操作中重复使用。
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公开(公告)号：US5082503A
公开(公告)日：1992-01-21
申请号：US601229
申请日：1990-10-22
摘要： A method for maintaining a flammable solvent in a nonflammable environment involves covering the flammable solvent with a nonflammable vapor blanket provided by a nonflammable solvent, such that vapors from the flammable and nonflammable solvents form a nonflammable gaseous mixture in the blanket. Such a method is used in removal of both oil-based and polar contaminants to control the flammability potential of an alcohol solvent. An apparatus for cleaning articles using fluorocarbon and alcohol solvents includes a chamber having a plurality of compartments for containing the solvents and a bounded vapor space. At least one of the compartments contains liquid fluorocarbon and at least one other will contain liquid alcohol. The solvents voltalize into the bounded vapor space to provide a nonflammable vapor blanket over the alcohol-containing compartment. Volatilized alcohol is mixed with the volatilized fluorocarbon to form a nonflammable mixture which is purified and separated, and the recovered fluorocarbon can be reused in subsequent cleaning operations.
摘要翻译： 将易燃溶剂保持在不可燃环境中的方法包括用不燃性溶剂提供的不可燃蒸汽床覆盖可燃溶剂，使得来自可燃和不可燃溶剂的蒸汽在橡皮布中形成不可燃气体混合物。 这种方法用于除去油基和极性污染物以控制醇溶剂的可燃性潜力。 使用碳氟化合物和醇溶剂清洁制品的装置包括具有多个用于容纳溶剂的隔室和有界蒸气空间的室。 至少一个隔室含有液体碳氟化合物，至少另外一个将含有液态醇。 溶剂挥发到有界的蒸汽空间中，以在含酒精的隔室上提供不可燃蒸气床。 将挥发的醇与挥发的碳氟化合物混合以形成不可燃混合物，其被纯化和分离，并且回收的碳氟化合物可以在随后的清洁操作中重复使用。
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4.发明授权Method of cleaning hollow fiber components of a dialyzer with chloro fluorocarbon compositions stabilized by epoxidized fatty acid glycerides or esters 失效通过环氧化的脂肪酸甘油酯或硫酸酯稳定的氯氟化碳组合物清洁中和纤维组分的方法
公开(公告)号：US5114608A
公开(公告)日：1992-05-19
申请号：US596880
申请日：1990-10-12
CPC分类号： C11D7/261 , C11D7/5018 , C11D7/5081 , C11D7/266 , C11D7/28
摘要： A method of stabilizing chlorofluorocarbon compositions thereby is provided. The stabilized composition comprises a chlorofluorocarbon and a sufficient amount of an epoxidized, generally high molecular weight stabilizer having an oxirane content sufficient to effectively stabilize the chlorofluorocarbon. The stabilizer is preferably an epoxidized oil having a molecular weight in the range of about 300 to about 1,500 and an oxirane content of at least about 4%. The method includes the step of adding a sufficient amount of such a stabilizer to the chloroflurocarbon composition. The chlorofluorocarbon composition typically comprises chlorofluoromethane, chlorofluoroethane, mixtures thereof or a chlorofluorocarbon-alcohol azeotropic solution. Also provided is an improved continuous dialyzer cleaning method utilizing the stabilized chlorofluorocarbon composition.
摘要翻译： 提供了一种稳定氯氟烃组合物的方法。 稳定的组合物包含氯氟烃和足量的具有足以有效稳定氯氟烃的环氧乙烷含量的环氧化，通常高分子量的稳定剂。 稳定剂优选为分子量在约300至约1500的环氧化物油和至少约4％的环氧乙烷含量的环氧化油。 该方法包括向氯氟烃组合物中加入足够量的这种稳定剂的步骤。 氯氟烃组合物通常包括氯氟甲烷，氯氟乙烷，其混合物或氯氟烃 - 醇共沸溶液。 还提供了利用稳定的氯氟烃组合物的改进的连续透析器清洗方法。
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5.发明授权Hollow fiber filter cleaning system and more particularly to the control of emissions from solvent cleaning equipment 失效中空纤维过滤器清洁系统，更特别是控制溶剂清洗设备的排放
公开(公告)号：US5192340A
公开(公告)日：1993-03-09
申请号：US839965
申请日：1992-02-21
申请人： David C. H. Grant , Randolph H. Watkins , Robert M. Sluga , Steven J. Wurgler , Gregory D. Mills , Dennis C. Berry , Jerry D. Fisher
发明人： David C. H. Grant , Randolph H. Watkins , Robert M. Sluga , Steven J. Wurgler , Gregory D. Mills , Dennis C. Berry , Jerry D. Fisher
CPC分类号： B01D53/005 , B01D19/0068 , B01D5/0054 , B01D63/021 , B01D65/02 , B01D2321/04 , B01D2321/16 , B01D2321/185
摘要： An emission control system for a fluid composition comprised of volatile constituents used to clean a hollow fiber filter or capillary flow dialyzer including a housing having a chamber for receiving the dialyzer, a control system is used for establishing a desired environment in the chamber, the dialyzer and the fibers, a separator operatively associated with the chamber for separating gas and liquid components of the fluid composition, a stripper connected to the separator for fractionating lower boiling point volatiles from the gas to return the higher boiling point volatiles to the fluid phase and yield a stripped or solvent humidified gas and a delivery system for routing the stripped gas to the chamber dialyzer and fibers as a drying agent.
摘要翻译： 一种用于清洁中空纤维过滤器或毛细管流式透析器的挥发性组分的流体组合物的排放控制系统，包括具有用于接收透析器的室的壳体，控制系统用于在腔室中建立期望的环境，透析器 并且纤维，与腔室可操作地相关联的用于分离流体组合物的气体和液体组分的分离器，连接到分离器的汽提器，用于从气体中分馏低沸点挥发物以将高沸点挥发物返回到流体相，并产生 剥离或溶剂加湿的气体和用于将剥离的气体引导到腔室透析器和作为干燥剂的纤维的递送系统。
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