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73 条记录 (耗时 0.013 秒)

    A PROCESS FOR THE PRODUCTION OF PAPER
    2.
    发明授权
    A PROCESS FOR THE PRODUCTION OF PAPER 失效
    一种生产纸张的过程

    公开(公告)号：EP0394368B1

    公开(公告)日：1993-05-12

    申请号：EP89903832.7

    申请日：1989-02-14

    申请人： Eka Nobel Aktiebolag

    发明人： SVENDING, Per, Johan ,  JOHANSSON, Hans, Erik

    IPC分类号： D21H17/00 ,  D21H23/00

    CPC分类号： D21H21/10 ,  D21H17/32 ,  D21H17/37 ,  D21H17/68

    摘要： A process for the production of paper by forming and dewatering a suspension of cellulose containing fibers and optional fillers on a wire in the presence of a cationic silica based sol and a cationic polymeric retention agent. The cationic polymeric retention agent is cationic guar gum or a cationic synthetic polymer such as cationic polyacrylamide. The combination of cationic silica sol and cationic polymeric retention agent gives improved retention of fines and fillers and eases drainage.

    9-Anthrylalkyl compounds, their preparation and their use
    4.
    发明公开
    9-Anthrylalkyl compounds, their preparation and their use 失效
    9-ANTHRYLALKYL化合物，其制备及其用途

    公开(公告)号：EP0365495A3

    公开(公告)日：1991-10-16

    申请号：EP89850246.3

    申请日：1989-08-04

    申请人： Eka Nobel Aktiebolag

    发明人： Becker, Hans-Dieter ,  Einarsson, Stefan ,  Grzegorczyk, Andrzej ,  Josefsson, Björn ,  Lagerkvist, Stig Sören ,  Möller, Per Leopold ,  Sanchez, Domingo ,  Sörensen, Johan Henrik

    IPC分类号： C07C69/96 ,  C07C33/18

    CPC分类号： C07C69/96 ,  C07C33/18 ,  C07C227/34 ,  C07C2603/24 ,  Y10S435/968 ,  Y10T436/142222 ,  Y10T436/143333 ,  Y10T436/173845 ,  Y10T436/203332 ,  Y10T436/204998 ,  C07C229/36

    摘要： New 9-anthrylalkyl compounds having the general formula
    wherein R is hydrogen or an alkyl group, whereby, however, not more than one of the groups R is an alkyl group; R₁ is hydrogen, lower alkyl, halogen or nitro; n is an integer of from 1 to 7, whereby ,however, the total number of carbon atoms in the group -CHR-(CHR) n - does not exceed 8; and X is halogen, an azide group or a succinimidyl group. The new compounds are prepared from 9-anthrylalcohols which are reacted with a compound X-CO-X wherein X is a halogen, and then optionally with compounds giving azide or succinimidyl group. The compounds are used as derivatiza­tion reagents for separation and detection purposes. Intermediates for preparation of the above defined 9-anthrylalkyl compounds wherein one R is an alkyl group are 9-anthrylalcohols with the group -CHR-(CHR) n -OH, wherein one R is an alkyl group.

    摘要翻译： 具有通式的新的9-蒽基烷基化合物，其中R是氢或烷基，其中不超过一个基团R是烷基; R1是氢，低级烷基，卤素或硝基; n为1〜7的整数，但-CHR-（CHR）n-基团中的碳原子总数不超过8; X为卤素，叠氮基或琥珀酰亚胺基。 新化合物由与蒽化合物X-CO-X反应的9-蒽醇制备，其中X为卤素，然后任选与化合物给予叠氮化物或琥珀酰亚胺基。 该化合物用作分离和检测目的的衍生试剂。 用于制备上述定义的9-蒽基烷基化合物的中间体，其中一个R是烷基是具有基团-CHR-（CHR）n -OH的9-蒽基，其中一个R是烷基。

    PROCESS FOR BLEACHING OF MATERIALS WITH A DITHIONITE SOLUTION
    8.
    发明公开
    PROCESS FOR BLEACHING OF MATERIALS WITH A DITHIONITE SOLUTION 失效
    方法用连二亚漂白材料。

    公开(公告)号：EP0319563A1

    公开(公告)日：1989-06-14

    申请号：EP88906162.0

    申请日：1988-06-14

    申请人： Eka Nobel Aktiebolag

    发明人： MANSSON, Inge

    IPC分类号： D21C ,  C01B17 ,  D06L3 ,  D21C9

    CPC分类号： C01B17/66 ,  D21C9/1089

    摘要： PCT No. PCT/SE88/00320 Sec. 371 Date Feb. 13, 1989 Sec. 102(e) Date Feb. 13, 1989 PCT Filed Jun. 14, 1988 PCT Pub. No. WO88/10334 PCT Pub. Date Dec. 29, 1988.Process for bleaching of materials, at which an aqueous solution of borohydride containing borohydride corresponding to from 15 to 35 percent by weight of sodium borohydride and hydroxylic ions corresponding to not more than 10 percent by weight of NaOH is brought to react with a bisulfite solution, after which the dithionite solution thus obtained is added to the material to be treated. This process gives a simple and economic preparation of dithionite bleaching solution in situ, in connection with the bleaching.

    Process for preparation of hydrogen peroxide
    9.
    发明公开
    Process for preparation of hydrogen peroxide 失效
    Verfahren zur Herstellung von Wasserstoffperoxyd。

    公开(公告)号：EP0286610A2

    公开(公告)日：1988-10-12

    申请号：EP88850082.4

    申请日：1988-03-09

    申请人： Eka Nobel Aktiebolag

    发明人： Bengtsson, Erik Alvar ,  Andersson, Ulf, Mikael

    IPC分类号： C01B15/023

    CPC分类号： C01B15/023

    摘要： A process for the production of hydrogen peroxide according to the anthraquinone process. According to the process certain alkyl substituted caprolactames are used as solvents, and particularly as solvents for anthrahydro­quinones. The substituted caprolactames, which for example can be hexyl caprolactam and octyl caprolactam, give a very good solubility for anthrahydroquinones and also for anthraquinones. The compounds can be used as the sole solvent at the production of hydrogen peroxide or in combination with conventionally used solvents such as hydrocarbons.

    摘要翻译： 根据蒽醌法生产过氧化氢的方法。 根据该方法，某些烷基取代的己内酯被用作溶剂，特别是用作蒽氢醌的溶剂。 取代的己内酰胺，例如可以是己基己内酰胺和辛基己内酰胺，对蒽醌和蒽醌具有非常好的溶解性。 这些化合物可以用作过氧化氢生产中的唯一溶剂，或与常规使用的溶剂如烃类组合使用。

    Process for purifying flue gases from nitrogen
    10.
    发明公开
    Process for purifying flue gases from nitrogen 失效
    Verfahren zur Entfernung von Stickstoffoxyden aus Abgasen。

    公开(公告)号：EP0283452A1

    公开(公告)日：1988-09-21

    申请号：EP88850069.1

    申请日：1988-02-25

    申请人： Eka Nobel Aktiebolag

    发明人： Odenbrand, Clas Ulf Ingemar ,  Brandin, Jan Gunnar Meo ,  Andersson, Lars Arne Herman ,  Lundin, Sten Tore

    IPC分类号： B01D53/36

    CPC分类号： B01D53/8628 ,  B01D53/8625

    摘要： Nitrogen oxide containing flue gases are purifyed by being subjected to an oxidation/reduction by means of a catalyst material, which comprises vanadium pentoxide on a support material. The purification is carried out in two separate steps, at which the content of nitrogen oxide in the flue gases are oxidized by means of a mordenite cata­lyst in the first step and are reduced by means of a catalyst of vanadium pentoxide on an acidic support mate­rial in the second step.

    摘要翻译： 含氮氧化物的烟气通过在载体材料上包含五氧化二钒的催化剂材料进行氧化/还原而被净化。 纯化在两个独立的步骤中进行，在该步骤中，烟道气中的氮氧化物的含量在第一步中通过丝光沸石催化剂被氧化，并通过五氧化二钒催化剂在酸性载体材料上还原 第二步。