Process for the degradation of highly toxic halogenated organic
compounds contained in gases
    2.
    发明授权
    Process for the degradation of highly toxic halogenated organic compounds contained in gases 失效
    降解气体中含有的高毒性卤化有机化合物的方法

    公开(公告)号:US5463170A

    公开(公告)日:1995-10-31

    申请号:US198055

    申请日:1994-02-18

    IPC分类号: B01D53/34 B01D53/70 B01D53/86

    CPC分类号: B01D53/8662 B01D53/70

    摘要: Disclosed is a process for the degradation of highly toxic halogenated organic compounds, in particular polychlorinated dibenzodioxins (PCDD) and dibenzofurans (PCDF), contained in gases containing no SO.sub.2 by oxidation using preferably hydrogen peroxide. The SO.sub.2 -free gas is passed, in the presence of hydrogen peroxide, over a substantially inorganic solid contact catalyst, in particular pyrogenic or precipitated silica or aluminum silicate. A residual PCDD/PCDF content of below 0.1 ng TE/Nm.sup.3 may be achieved in the thus treated gas; the highly toxic compounds are oxidized on the solid contact catalyst.

    摘要翻译: 公开了一种通过使用优选过氧化氢通过氧化降解含有不含SO 2的气体中的高毒性卤化有机化合物,特别是多氯二苯并二恶英(PCDD)和二苯并呋喃(PCDF))的方法。 在过氧化氢存在下,无SO 2的气体通过基本上无机的固体接触催化剂,特别是致热或沉淀二氧化硅或硅酸铝。 在这样处理的气体中可以实现低于0.1ng TE / Nm3的残留PCDD / PCDF含量; 高毒性化合物在固体接触催化剂上被氧化。

    Liquid-crystal mixture with a pleochroic anthraquinone dye, and method
for producing such a dye
    7.
    发明授权
    Liquid-crystal mixture with a pleochroic anthraquinone dye, and method for producing such a dye 失效
    具有多色性蒽醌染料的液晶混合物,以及这种染料的制造方法

    公开(公告)号:US4491532A

    公开(公告)日:1985-01-01

    申请号:US301046

    申请日:1981-09-10

    摘要: Liquid-crystal mixture with a pleochroic anthraquinone dye of the general formula ##STR1## with R.sup.1, R.sup.3, R.sup.4, R.sup.6 =H, OH, OCH.sub.3, NH.sub.2, NHCH.sub.3, NO.sub.2, characterized by the feature that ##STR2## (R.sup.7 =H, alkyl, cycloalkyl, alkoxy, alkylmercapto, amino, alkylamino, dialkylamino, nitro, cyano, halogen), ##STR3## COOR.sup.9, CH.sub.2 --OR.sup.9 (R.sup.8 =H, alkyl, cycloalkyl, alkoxy, alkylmercapto, amino, alkylamino, dialkylamino, nitro, cyano, halogen); R.sup.9 =H, alkyl and either R.sup.1, R.sup.4 =H, OH, NH.sub.2, NHCH.sub.3, NO.sub.2, NHCH.sub.3, NO.sub.2, OCH.sub.3, where at least one of the two radical is an NH.sub.2 or an NHCH.sub.3, R.sup.3 =R.sup.6 =H, or R.sup.3, R.sup.6 =H, OH, NH.sub.2, NHCH.sub.3, NO.sub.2, OCH.sub.3, where at least one of the two radicals is an NH.sub.2 or an NHCH.sub.3, R.sup.1 =R.sup.4 =H.

    摘要翻译: 具有通式“IMAGE”的具有R1,R3,R4,R6 = H,OH,OCH3,NH2,NHCH3,NO2的双色性蒽醌染料的液晶混合物,其特征在于, 烷基,烷基,烷基氨基,烷基氨基,硝基,烷基氨基,烷基氨基,烷基氨基,烷基氨基, 氰基,卤素); R 9 = H,烷基和R 1,R 4 = H,OH,NH 2,NHCH 3,NO 2,NHCH 3,NO 2,OCH 3,其中两个基团中的至少一个是NH 2或NHCH 3,R 3 = R 6 = H或R 3 ,R6 = H,OH,NH2,NHCH3,NO2,OCH3,其中两个基团中的至少一个是NH 2或NHCH 3,R 1 = R 4 = H。