Production of methylamines
    1.
    发明授权
    Production of methylamines 失效
    生产甲胺

    公开(公告)号:US5688854A

    公开(公告)日:1997-11-18

    申请号:US712886

    申请日:1996-09-12

    IPC分类号: C07C209/16 C07C211/04

    CPC分类号: C07C209/16 Y02P20/582

    摘要: Disclosed is an improvement in a process for catalytic production of methylamines from methanol and NH.sub.3, or methanol, a mixture of methylamines and NH.sub.3, or a mixture of methylamines and NH.sub.3, in a gaseous phase, over a bed of a zeolite catalyst, where the improvement is that the catalyst bed is divided into two or more sub-beds, and the difference between the inlet and outlet temperatures of each catalyst sub-bed is kept in the range of approximately 5.degree. C. to approximately 70.degree. C. while the reaction is carried out.

    摘要翻译: 公开了在沸石催化剂床上在气相中从甲醇和NH 3或甲醇,甲胺和甲胺,甲胺和NH 3的混合物或甲胺和NH 3的混合物催化制备甲胺的方法的改进,其中 改进之处在于催化剂床分为两个或更多个床层,每个催化剂床层的入口和出口温度之间的差别保持在约5℃至约70℃的范围内,而 进行反应。

    Process for producing dimethylamine
    2.
    发明授权
    Process for producing dimethylamine 失效
    二甲胺生产工艺

    公开(公告)号:US5773659A

    公开(公告)日:1998-06-30

    申请号:US682588

    申请日:1996-07-24

    摘要: To develop a zeolite catalyst which can prevent the drastic lowering of dimethylamine selectivity to be caused in the production of dimethylamine using a zeolite catalyst when the conversion of methanol is high, and which can give higher dimethylamine selectivity and lower trimethylamine selectivity as well as higher methanol-consuming reaction activity; and to provide a process for producing dimethylamine with high selectivity, using the catalyst. A process for producing dimethylamine by allowing methanol, or methanol and a methylamine mixture, or a methylamine mixture to react with ammonia in the gaseous phase in the presence of a catalyst, characterized in that a modified zeolite prepared by treating a zeolite with a solution containing a chelating agent is used as the catalyst.

    摘要翻译: PCT No.PCT / JP95 / 02480第 371日期:1996年7月24日 102(e)日期1996年7月24日PCT 1995年12月5日PCT PCT。 公开号WO96 / 17820PC。 日期1996年6月13日开发沸石催化剂,其可以防止在甲醇转化率高时在使用沸石催化剂生产二甲胺时引起的二甲胺选择性剧烈降低,并且其可以提供更高的二甲胺选择性和较低的三甲胺选择性 以及较高的甲醇消耗反应活性; 并提供使用该催化剂以高选择性生产二甲胺的方法。 一种通过使甲醇或甲醇和甲胺混合物或甲胺混合物在催化剂存在下在气相中与氨反应生产二甲胺的方法,其特征在于通过用含有 使用螯合剂作为催化剂。

    Processed food made of iodine-enriched wheat flour
    5.
    发明授权
    Processed food made of iodine-enriched wheat flour 失效
    由富含碘的小麦粉制成的加工食品

    公开(公告)号:US5232728A

    公开(公告)日:1993-08-03

    申请号:US854759

    申请日:1992-03-20

    IPC分类号: A21D2/02 A21D2/36 A23L7/10

    CPC分类号: A21D2/36 A21D2/02 A23L7/101

    摘要: Processed foods made of iodine-enriched wheat flour contain 0.05 mg to 40 mg of iodine per 100 g of wheat flour. The iodine is provided by blending small quantities of residues of extracts from sea weeds in the Laminaria group into wheat flour used for the production of such processed foods as bread, cakes, cookies, noodles, and the like. It is possible to intake essential iodine easily without any sense of incongruity.

    摘要翻译: 由富含碘的小麦粉制成的加工食品每100g小麦粉含有0.05mg至40mg的碘。 碘是通过将少量来自海带组织中的海草的提取物的残留物混合成用于生产诸如面包,蛋糕,饼干,面条等的加工食品的小麦粉而提供的。 可以容易地摄入必需碘而没有任何不协调的感觉。