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183 条记录 (耗时 0.02 秒)

    Treatment of aqueous waste streams with hydrogen peroxide to remove chlorinated isocyanurates therefrom
    31.
    发明授权
    Treatment of aqueous waste streams with hydrogen peroxide to remove chlorinated isocyanurates therefrom 失效
    用过氧化氢处理含水废水流，以从其中除去氯化异氰脲酸酯

    公开(公告)号：US3878208A

    公开(公告)日：1975-04-15

    申请号：US42516773

    申请日：1973-12-14

    申请人： FMC CORP

    发明人： CARLSON RONALD H ,  MESIAH RAYMOND N ,  CHANCEY HAROLD R

    IPC分类号： C07D251/32 ,  C02F1/72 ,  C07C20060101 ,  C07D251/28 ,  C07D251/36 ,  C07D55/36

    CPC分类号： C07D251/36

    摘要： Aqueous waste streams containing dissolved chlorinated isocyanurates and sodium chloride are contacted with hydrogen peroxide at a pH of about 0.5 to 12.0 whereby the chlorinated isocyanurates are converted to substantially insoluble cyanurate values which are separated by filtration or otherwise removed. The cyanurate values consist mainly of cyanuric acid at the lower pH range and sodium cyanurates at the upper pH range. The resulting filtrate is much lower in organics than the original waste streams. The treatment constitutes an effective pollution control measure which can operate in conjunction with existing processes of manufacturing chlorinated isocyanurate chemicals.

    摘要翻译： 将含有溶解的氯化异氰脲酸酯和氯化钠的含水废水与pH为约0.5至12.0的过氧化氢接触，由此将氯化异氰脲酸酯转化成基本上不溶的氰尿酸盐，其通过过滤或以其它方式除去分离。 氰尿酸值主要由较低pH范围的氰尿酸和较高pH范围的氰尿酸钠组成。 所得滤液的有机物含量比原始废液流低得多。

    Recovery of chlorine and cyanuric acid values from polychloroisocyanuric acid and salts thereof
    32.
    发明授权
    Recovery of chlorine and cyanuric acid values from polychloroisocyanuric acid and salts thereof 失效
    从聚氯乙烯酸及其盐中回收氯和氰基酸值

    公开(公告)号：US3846424A

    公开(公告)日：1974-11-05

    申请号：US36269573

    申请日：1973-05-22

    申请人： OLIN CORP

    发明人： DOONAN D ,  HIRDLER L ,  SCHIESSL H

    IPC分类号： C01B7/00 ,  C01B7/01 ,  C07D251/32 ,  C07D55/36

    CPC分类号： C07D251/32 ,  C01B7/01

    摘要： A process is described for recovering chlorine and cyanuric acid values from aqueous solutions containing a chlorinated s-triazine compound selected from the group consisting of polychloroisocyanuric acids, alkali metal salts thereof and mixtures thereof. The aqueous solution of chlorinated s-triazine compound is reacted with a mineral acid to form chlorine and cyanuric acid. An inert gas is preferably passed simultaneously through the aqueous solution to remove chlorine as it forms. The chlorine-depleted aqueous slurry containing solid cyanuric acid is reacted in a neutralization step with an alkali metal compound to precipitate an alkali metal cyanurate, which is separated, for example, by filtration. The solid alkali metal cyanurate may be used in the preparation of additional polychloroisocyanuric acid or alkali metal salt thereof. The resulting solids-free liquid, which contains some dissolved alkali metal cyanurate is contacted with an adsorbent, such as activated carbon, which adsorbs the cyanurate from the liquid, and the resulting liquid, substantially free of chlorine and cyanuric acid values, is conveyed to waste. Alkali metal cyanurate adhering to the adsorbent is removed from the adsorbent with an alkali metal hydroxide or carbonate solution and recycled to the neutralization step.

    摘要翻译： 描述了从含有选自多氯异氰尿酸，其碱金属盐及其混合物的氯化的三嗪化合物的水溶液中回收氯和氰尿酸值的方法。 氯化三嗪化合物的水溶液与无机酸反应形成氯和三聚氰酸。 惰性气体优选同时通过水溶液以除去其形成的氯气。 含有固体氰尿酸的含氯贫含水浆料在中和步骤中与碱金属化合物反应以沉淀碱金属氰脲酸盐，其通过过滤分离。 固体碱金属氰尿酸盐可用于制备额外的多氯异氰脲酸或其碱金属盐。

    Free-flowing cyanuric acids
    33.
    发明授权
    Free-flowing cyanuric acids 失效
    自由流动的氰尿酸

    公开(公告)号：US3644359A

    公开(公告)日：1972-02-22

    申请号：US3644359D

    申请日：1970-05-01

    申请人： FMC CORP

    发明人： MESIAH RAYMOND N ,  CHANCEY HAROLD R

    IPC分类号： C07D251/32 ,  C07D55/36

    CPC分类号： C07D251/32

    摘要： CYANURIC ACID WHICH HAS BEEN PURIFIED BY ACID DIGESTION IS NOT FREE-FLOWING, AND IT CAKES UPON STORAGE. THIS INVENTTION PROVIDES A METHOD OF MAKING THE ACID-DIGESTED CYANURIC ACID FREE-FLOWING AND NON-CAKING.

    METHOD FOR PRODUCING ISOCYANURIC ACID DERIVATIVE HAVING ONE HYDROCARBON GROUP
    39.
    发明申请
    METHOD FOR PRODUCING ISOCYANURIC ACID DERIVATIVE HAVING ONE HYDROCARBON GROUP 审中-公开

    公开(公告)号：US20190161455A1

    公开(公告)日：2019-05-30

    申请号：US16304742

    申请日：2017-05-23

    申请人： NISSAN CHEMICAL CORPORATION

    发明人： Yuichi GOTO ,  Gun SON

    IPC分类号： C07D251/32

    摘要： A method for producing an isocyanuric acid derivative having one hydrocarbon group. The method having a hydrocarbon group including a first step of obtaining a compound of the following formula (1) from the compound of formula (0), a second step of obtaining a compound of the following formula (2) from the compound of formula (1), a third step of obtaining a compound of the following formula (3) from the compound of formula (2), and a fourth step of obtaining a compound of the following formula (4) from the compound of formula (3): (wherein X1s are each a chlorine atom, a fluorine atom, or a bromine atom, Bn is a benzyl group in which at least one hydrogen atom in a benzene ring is optionally substituted with methyl group, and R is a C1-10 hydrocarbon group), wherein all the steps are carried out at a temperature of not exceeding 100° C.