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    • 53. 发明授权
    • Flat stack permeator
    • 平面包装渗透剂
    • US5104532A
    • 1992-04-14
    • US528311
    • 1990-05-24
    • John A. ThompsonManual E. Camano
    • John A. ThompsonManual E. Camano
    • B01D63/00B01D63/08B01D63/14
    • B01D63/082
    • The present invention is a flat stack permeator useful under dialysis, ultrafiltration, reverse osmosis, perstraction, pervaporation, etc. conditions. The permeator comprises a multitude of membrane layer alternately separated by feed-retentate spacers and permeate spacers. The layers are secured along their edges so as to define separate feed-retentate zones and permeate zone. The edge gluing is performed so that in any given layer the two parallel edges are secured, while on the layers immediately above and below the edge pairs which are secured are 90.degree. out of register with the previously mentioned pair of secured edges. In that way alternate feed retentate and permeate zones are defined which are perpendicular in flow one to the other. This stack of membrane and spacer layer is fabricated between flat rigid, solid, non-permeable sheets, the membrane sheets immediately adjacent to said solid sheets being edge glued to the sheet along the proper edge defining a feed-retentate or permeate zone as appropriate to form a module. This module is fitted with manifolds to provide a feed-retentate entrance-exit pair and separate permeate exits. Alternatively the module can be inserted into an appropriately manifolded pressure vessel.
    • 55. 发明授权
    • Method for the modification of polycarbonate membranes, the membranes
produced by such method and their use
    • 用于改性聚碳酸酯膜的方法,通过这种方法制备的膜及其用途
    • US4715960A
    • 1987-12-29
    • US474008
    • 1983-03-10
    • John A. Thompson
    • John A. Thompson
    • B01D67/00B01D71/50B01D13/00
    • B01D67/0088B01D71/50
    • Polycarbonate membranes are prepared for the selective separation of organic liquid mixtures, especially for the separation of ketone dewaxing solvents from dewaxed oil by preshrinking said membranes in presence of a class of solvents of solubility parameter values in the range of from 8.9 to 10 (cal/cm.sup.3).sup.0.5, and which do not dissolve the membranes.Preshrunk polycarbonate membranes, prepared by the method of the present invention, can be used for the selective separation of the various components in organic liquid mixtures such as, for the separation of dewaxing solvents from dewaxed oil, preferably the separation of ketone dewaxing solvents from dewaxed oil. The separation is based on a reverse osmosis technique whereby the solvent is permeated through the membrane under an applied pressure sufficient to overcome the osmotic pressure of the system. Applied pressures can vary from 50 up to 1,500 psi, depending on solution concentration. The separation can be carried out in the temperature range -30.degree. to about +80.degree. C., preferably about -20.degree. to about +60.degree. C.
    • 制备聚碳酸酯膜用于选择性分离有机液体混合物,特别是用于通过在溶解度参数值范围为8.9至10(cal / s)范围的存在下预先破坏所述膜来从脱蜡油中分离酮脱蜡溶剂。 cm3)0.5,不溶解膜。 通过本发明的方法制备的聚碳酸酯膜可以用于选择性分离有机液体混合物中的各种组分,例如用于从脱蜡油中分离脱蜡溶剂,优选将脱蜡的酮脱蜡溶剂分离 油。 分离基于反渗透技术,其中溶剂在足以克服系统的渗透压的施加压力下渗透通过膜。 施加的压力可以从50升到1,500psi,这取决于溶液浓度。 分离可以在-30℃至约+ 80℃,优选约-20℃至约+60℃的温度范围内进行。
    • 57. 发明授权
    • Process for producing alkali metal ferrates utilizing hematite and
magnetite
    • 利用赤铁矿和磁铁矿生产碱金属高铁酸盐的方法
    • US4545974A
    • 1985-10-08
    • US590567
    • 1984-03-16
    • John A. Thompson
    • John A. Thompson
    • C01G49/00
    • C01G49/0081
    • Alkali metal iron (IV) and iron (VI) ferrates are produced by forming a particulate mixture of reactants including an alkali metal nitrogen oxygen compound and an iron material selected from the group of iron oxide, Fe.sub.2 O.sub.3, Fe.sub.3 O.sub.4 and an iron compound which self-reacts at a temperature less than about 1100.degree. C. to form Fe.sub.2 O.sub.3. The mixture of reactants is subjected to a predetermined elevated temperature for a predetermined time duration sufficient to bring about a reaction between the reactants which produces at least one of iron (IV) and iron (VI) ferrates. The molar ratio of alkali metal nitrogen oxygen compound to the iron material is preferably in the range extending between about 4:1 and about 8:1.
    • 碱金属铁(IV)和铁(VI)铁酸盐通过形成包括碱金属氮氧化合物和选自氧化铁,Fe 2 O 3,Fe 3 O 4和铁化合物的铁材料的反应物的颗粒混合物来制备, 在低于约1100℃的温度下反应形成Fe 2 O 3。 将反应物的混合物经受预定的升高温度预定的时间以足以引起产生铁(Ⅳ)和铁(Ⅵ)铁(Ⅵ)铁中的至少一种的反应物之间的反应。 碱金属氮氧化合物与铁材料的摩尔比优选在约4:1至约8:1之间的范围内。