Impact resistant polymer composition
    11.
    发明公开
    Impact resistant polymer composition 失效
    Schlagfeste Polymerzusammensetzung。

    公开(公告)号:EP0037609A1

    公开(公告)日:1981-10-14

    申请号:EP81200356.4

    申请日:1981-03-31

    申请人: STAMICARBON B.V.

    IPC分类号: C08L25/12 C08L33/18

    摘要: The invention relates to an impact resistant polymer composition based on a copolymer of an unsaturated nitrile, a largely saturated rubber and a chlorinated polyethylene.
    To improve certain properties of said composition, it is characterized in that the polymer composition comprises

    a. 50-95 parts by weight of one or more polymers obtained by the polymerization of 10-90 % by weight of styrene and/or derivatives of styrene and 90-10 % by weight of acrylonitril and or methacrylonitrile, b. 5-50 parts by weight of
    b.1. a largely saturated rubber
    b.2. chlorinated polyethylene, which chlorinated polyethylene has a chlorine content of at least 10 % by weight, a DSC crystallinity of at least 10 % and a glass transition temperature higher than of equal to-15°C.

    摘要翻译: 本发明涉及一种基于不饱和腈,大部分饱和的橡胶和氯化聚乙烯的共聚物的耐冲击聚合物组合物。 为了改善所述组合物的某些性质,其特征在于聚合物组合物包含:a。 通过10-90重量%的苯乙烯和/或苯乙烯衍生物和90-10重量%的丙烯腈和/或甲基丙烯腈的聚合获得的一种或多种聚合物的50-95重量份,... b。 5-50重量份... b.1。 一个大部分饱和的橡胶... b.2。 氯化聚乙烯的氯含量为至少10重量%,DSC结晶度为至少10%,玻璃化转变温度高于-15℃。

    Process for the spraying of a liquid by means of a gas
    12.
    发明公开
    Process for the spraying of a liquid by means of a gas 失效
    处理用于通过气体的装置雾化液体。

    公开(公告)号:EP0037156A1

    公开(公告)日:1981-10-07

    申请号:EP81200342.4

    申请日:1981-03-27

    申请人: STAMICARBON B.V.

    IPC分类号: B05B7/06 C07D251/56 B01J2/16

    摘要: The invention relates to a process for the spraying of a liquid by means of a gas into a fluidized bed, in which process said spraying is conducted by means of a two-phase spraying device, consisting of a liquid feed tube 21 fitted concentrically in a gas feed tube 26, in which device the end face of the liquid feed tube and the inner wall of the part of the gas feed tube extending beyond this end face are chamfered at an angle of 70-90° so that between this face and this wall there is a conical channel, and this inner wall connects, via a rounded area, to the inner wall of an outflow channel fitted coaxially in respect of the liquid feed tube, of which channel the inside diameter is 1 to 1.6 times the inside diameter of the outflow opening of the liquid feed tube and 2.5 to 10 times the curvature radius of the rounded area.
    To prevent erosion due to fluctuations in the process or to small changes in the design of the sprayer the invention is characterized in that the outflow channel 31, seen into the direction of flow, is conically narrowed.

    Process for the separation of ammonia and carbon dioxide from mixtures containing ammonia, carbon dioxide and water
    14.
    发明公开
    Process for the separation of ammonia and carbon dioxide from mixtures containing ammonia, carbon dioxide and water 失效
    一种用于氨和二氧化碳的选自氨,二氧化碳和水的混合物的分离过程。

    公开(公告)号:EP0018028A1

    公开(公告)日:1980-10-29

    申请号:EP80200296.4

    申请日:1980-03-29

    申请人: STAMICARBON B.V.

    IPC分类号: C01C1/12 C01B31/20 B01D19/00

    摘要: A process for the separation of substantially pure NH 3 and substantially pure CO 2 from a mixture containing NH 3 , CO 2 and water is disclosed.
    In this process NH 3 is separated by rectification in an NH a -separation zone (3), the remaining liquid phase is fed to a CO 2 -separation zone (18) where gaseous CO 2 is separated by rectification, and the resulting liquid phase is fed from the bottom of this zone to a desorption zone (10), where virtually all NH 3 and CO 2 still contained in this liquid phase are separated as a gaseous mixture.
    To improve the efficiency of the separation and to decrease the sensitivity of the process to fluctuations in the feed to the NH 3 -separation zone (3), the process is characterized in that so much gaseous CO 2 or a gaseous mixture containing CO 2 is fed to the bottom of the NH 3 -separation zone (3) that the composition of the liquid phase released in the bottom of the NH a -separation zone (3) is not on the side of the boundary line rich in NH 3 .
    Preferably also an amount of inert gas is introduced together with the CO 2 .

    Process for the nitrification and denitrification of waste water
    15.
    发明公开
    Process for the nitrification and denitrification of waste water 失效
    Verfahren zur Nitrifikation und Denitrifikation von Abwasser。

    公开(公告)号:EP0008471A1

    公开(公告)日:1980-03-05

    申请号:EP79200431.9

    申请日:1979-08-03

    申请人: STAMICARBON B.V.

    IPC分类号: C02F3/30

    CPC分类号: C02F3/302

    摘要: Waste water is nitrified and denitrified in an activated sludge process by passing the waste water successively and continuously through successive aerobic and anaerobic zones. The process is characterized by a short cycle time, defined as the time elapsed from the point the waste water enters an aerobic zone until the waste water passes through the adjacent anaerobic growth zone and enters the next successive growth zone, not exceeding 3 minutes and preferably about one minute. At the same time, the concentration of dissolved molecular oxygen should be more than 0.5 mg/l in at least 40% and less than 0.1 mg/l in at least 20 % of the basin, with a sludge load not in excess of 0.2 g BZV 20 5 /(g sludge, day).

    摘要翻译: 废水在活性污泥工艺中经过硝化和反硝化,通过连续的有氧和厌氧区连续通过废水。 该方法的特点是循环时间短,定义为从废水进入需氧区直到废水通过相邻的厌氧生长区并进入下一个连续生长区的时间,不超过3分钟,优选 约一分钟 同时,在至少20%的盆地中,溶解分子氧的浓度应至少在40%以上且小于0.1mg / l,超过0.5mg / l,污泥负荷不超过0.2g BZV20_5 /(g污泥,天)。