Exhaust gas purifying catalyst and process of making and using same
    31.
    发明授权
    Exhaust gas purifying catalyst and process of making and using same 失效
    废气净化催化剂及其制造和使用过程

    公开(公告)号:US4034060A

    公开(公告)日:1977-07-05

    申请号:US685958

    申请日:1976-05-13

    摘要: A process for preparing an oxidic, carrier catalyst comprising at least one heavy metal compound as active component, said process comprising providing a carrier comprising a temperature resistant material with a catalytically active coating by intensively mixing said carrier with a binding agent, and at least one pulverulent, oxidic heavy metal compound or with a pulverulent mass containing at least one of said oxidic heavy metal compounds or at least one hydroxyl group-containing precursor of said heavy metal compounds, and subsequently heating the resulting mass to remove said binding agent. The catalyst and the process of using the catalyst in the purification of exhaust gases are provided.

    摘要翻译: 一种制备包含至少一种重金属化合物作为活性组分的氧化性载体催化剂的方法,所述方法包括通过将所述载体与结合剂强烈混合而提供包含具有催化活性涂层的耐温材料的载体,以及至少一种 粉状,氧化重金属化合物或含有至少一种所述氧化重金属化合物或所述重金属化合物的至少一种含羟基的前体的粉状物质,随后加热所得物质以除去所述粘合剂。 提供催化剂和在废气净化中使用催化剂的方法。

    Catalyst for the oxidation of sulfur dioxide and method for the
production of the catalyst
    33.
    发明授权
    Catalyst for the oxidation of sulfur dioxide and method for the production of the catalyst 失效
    二氧化硫氧化催化剂及催化剂生产方法

    公开(公告)号:US5215953A

    公开(公告)日:1993-06-01

    申请号:US925803

    申请日:1992-07-22

    IPC分类号: B01D53/86 B01J23/22 C01B17/79

    摘要: A solid catalyst for the oxidation of sulfur dioxide in gas currents containing oxygen, which catalyst includes vanadium oxide and alkali metal oxides, alkali metal sulfates or mixtures thereof, as an active substance, silicon, aluminum, or mixtures thereof, in oxide form, for surface area enlargement, and titanium dioxide in anatase form, rutile form, or mixtures thereof, as a carrier material and a ceramic binder. The metals in these finely sintered components which impart discrete functions are present in certain atomic ratios. The fine sintering takes place according to a production method especially by means of differentiated conditions of drying, calcining and sintering. One use for the invention is the desulfurization of waste gases from combustion processes and industrial plants.

    摘要翻译: 一种固体催化剂,用于在含有氧的气流中氧化二氧化硫,该催化剂包括氧化物形式的作为活性物质的氧化钒和碱金属氧化物,碱金属硫酸盐或其混合物,硅,铝或其混合物,用于 表面积增大,锐钛型二氧化钛,金红石型或其混合物,作为载体材料和陶瓷粘合剂。 赋予离散功能的这些精细烧结组分中的金属以某些原子比存在。 根据生产方法,特别是通过干燥,煅烧和烧结的不同条件进行精细烧结。 本发明的一个用途是来自燃烧过程和工厂的废气的脱硫。

    Method of working up the solution from the enzymatic resolution of a
racemate of an N-acetyl-DL-amino-carboxylic acid
    39.
    发明授权
    Method of working up the solution from the enzymatic resolution of a racemate of an N-acetyl-DL-amino-carboxylic acid 失效
    从N-乙酰基-DL-氨基 - 羧酸的外消旋体的酶拆分处理溶液的方法

    公开(公告)号:US4909916A

    公开(公告)日:1990-03-20

    申请号:US285366

    申请日:1988-12-15

    摘要: There is described the working up of a solution by electrodialysis originally prepared by the enzymatic resolution of an N-acetyl-DL-aminocarboxylic acid. The electrodialysis device used consists of a plurality of three-chamber packets, each of which comprises a feed and diluent chamber (1), a (basic) concentrate chamber (2) located on its cathode side and an (acidic) concentrate chamber (3) located on its anode side, whereby each three-chamber packet is separated from each of the two adjacent ones by a device (4) in which water is decomposed into OH.sup.- ions and H.sup.+ ions. The added resolution solution is separated by this device into three solutions, the first of which contains the L-amino acid, the second of which contains the cations present in the resolution solution as hydroxides and the third of which contains the anions present in the resolution solution as free acids.

    摘要翻译: 描述了最初通过N-乙酰基-DL-氨基羧酸的酶拆分制备的电渗析来处理溶液。 所使用的电渗析装置包括多个三室包装,每个包装包括进料和稀释室(1),位于其阴极侧的(碱性)浓缩室(2)和(酸性)浓缩室(3) ),其中通过其中水被分解成OH-离子和H +离子的装置(4)将每个三室分组与两个相邻的分组分离。 加入的分辨率溶液由该装置分离成三种溶液,其中第一种溶液含有L-氨基酸,其中第二种溶液含有分解溶液中存在的阳离子为氢氧化物,其中第三种含有决议中存在的阴离子 溶液作为游离酸。