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    • 2. 发明授权
    • Process for removing nitrogen oxides and sulfur dioxide from effluent
gases
    • 从废气中除去氮氧化物和二氧化硫的方法
    • US4004995A
    • 1977-01-25
    • US446788
    • 1974-02-28
    • Sueo MachiKeita KawamuraShingi AokiWaichiro KawakamiShoji Hashimoto
    • Sueo MachiKeita KawamuraShingi AokiWaichiro KawakamiShoji Hashimoto
    • B01D53/60F01N3/00B01J1/00
    • F01N3/00B01D53/60Y02T10/20
    • Removal of gaseous pollutants such as nitrogen oxides and sulfur dioxide from effluent gases can be carried out advantageously from an industrial viewpoint by effecting irradiation of said gases under specifically selected conditions. High dose rate electron beam irradiation at a dose rate in the region of 10.sup.5 rad/sec or higher is, unexpectedly, remarkably effective and efficient for said purpose. Irradiation under increased pressure is also preferable. Wash of gases after irradiation or effecting irradiation in the presence of water vapor is effective especially for the removal of nitrogen oxides. Further, by carrying out the process in two-steps in which nitrogen oxides are removed from such gases almost completely by irradiation with the minimum dose of electron beams before sulfur dioxide is removed from the thus treated gases by conventional desulfurization means, the process can be carried out very economically. Thus, it has become industrially feasible to treat the effluent gases with irradiation, for the removal of nitrogen oxides and sulfur dioxide before releasing them into the atmosphere.
    • 从工业的观点出发,可以有利地从流出气体中除去气体污染物如氮氧化物和二氧化硫,在特定条件下进行所述气体的照射。 在105rad / sec或更高的范围内的剂量率的高剂量率电子束照射意外地对于所述目的而言是非常有效和有效的。 加压下的照射也是优选的。 在水蒸汽存在下,照射后或进行照射后的气体洗涤对于除去氮氧化物是有效的。 此外,通过在通过常规脱硫装置从这样处理的气体除去二氧化硫之前通过用最小剂量的电子束照射几乎完全从这些气体中除去氮氧化物的两个步骤进行该步骤,该方法可以是 非常经济地进行。 因此,在将其排放到大气中之前,通过照射来处理废气已成为工业上可行的去除氮氧化物和二氧化硫。
    • 7. 发明授权
    • Radiation polymerization of cationic monomer in aqueous alcohol
    • 阳离子单体在含水醇中的辐射聚合
    • US4354907A
    • 1982-10-19
    • US118967
    • 1980-02-05
    • Sueo MachiIsao IshigakiToshimi OkadaShigeaki Washio
    • Sueo MachiIsao IshigakiToshimi OkadaShigeaki Washio
    • C08F2/00C08F2/10C08F2/46C08F2/54C08F20/00C08F20/34
    • C08F20/34
    • A process for the production of water-soluble, substantially solid, cationic polymers comprises the step of irradiating an aqueous solution with ionizing radiation, the aqueous solution comprising at least 50% by weight of one, or two or more of specific type of amino ester or esters optionally being accompanied by acrylamide, and at least 0.1% by weight of a specific type of alcohol as an agent for inhibiting water-insolubility of the resulting polymer.The amino esters have the generic formula ##STR1## wherein R.sub.1 represents a hydrogen atom or a methyl group; R.sub.2 represents a hydrogen atom or an alkyl group having 1-4 carbon atoms; R.sub.3 and R.sub.4 each represents an alkyl group having 1-4 carbon atoms and x.sup.(-) represents an anion; or from the combination of at least one of said amino esters and acrylamide.The alcohols have the formula ##STR2## wherein X', Y' and Z' each represents a hydrogen atom or a hydroxyl group, providing at least one of said X', Y' and Z' is OH; and L, m and n each represents a natural number; and include isopropyl alcohol, isobutyl alcohol, sec. butyl alcohol, glycerine and propylene glycol.
    • 制备水溶性,基本上固体的阳离子聚合物的方法包括用电离辐射照射水溶液的步骤,所述水溶液包含至少50重量%的一种或两种或更多种特定类型的氨基酯 或任选地伴随丙烯酰胺的酯,以及至少0.1重量%的特定类型的醇作为抑制所得聚合物的水不溶性的试剂。 氨基酯具有通式“IMAGE”,其中R 1表示氢原子或甲基; R2表示氢原子或具有1-4个碳原子的烷基; R3和R4各自表示具有1-4个碳原子的烷基,x( - )表示阴离子; 或至少一种所述氨基酯和丙烯酰胺的组合。 醇具有式“其中X',Y'和Z”各自表示氢原子或羟基,提供所述X',Y'和Z'中的至少一个是OH; L,m和n各自表示自然数; 并包括异丙醇,异丁醇, 丁醇,甘油和丙二醇。