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    Process for the preparation of C.sub.1 -C.sub.4 -alkyl nitrites
    307.
    发明授权
    Process for the preparation of C.sub.1 -C.sub.4 -alkyl nitrites 失效
    制备C1-C4烷基亚硝酸盐的方法

    公开(公告)号：US5649322A

    公开(公告)日：1997-07-15

    申请号：US571625

    申请日：1995-12-11

    Applicant: Heinz Landscheidt ,  Paul Wagner ,  Zoltan Kricsfalussy ,  Alexander Klausener

    Inventor： Heinz Landscheidt ,  Paul Wagner ,  Zoltan Kricsfalussy ,  Alexander Klausener

    IPC: C07C201/04 ,  C07C203/00 ,  C07C203/02

    CPC classification number: C07C201/04

    Abstract: C.sub.1 -C.sub.4 -Alkyl nitrites can be prepared by reaction of C.sub.1 -C.sub.4 -alkanols with nitrogen oxides with the participation of oxygen in a reactor designed as a scrubber column, nitrogen oxides having a proportion of more than 50% of NO of the total amount of gram atoms of N of the nitrogen oxides, oxygen and optionally inert gas being fed into the lower part of the reactor. 5 to 60% of the total amount of C.sub.1 -C.sub.4 -alkanol used is likewise fed into the lower part of the reactor in vaporous or atomized form, while the remaining C.sub.1 -C.sub.4 -alkanol is delivered to the column head.

    Abstract translation: C1-C4烷基亚硝酸盐可以通过在设计为洗涤塔的反应器中将C1-C4-链烷醇与氮氧化物反应而制备，氧化反应设计为总量超过NO的50％ 的氮原子的氮原子的克原子，氧和任选的惰性气体被供给到反应器的下部。 使用的C 1 -C 4烷醇的总量的5-60％同样以蒸气或雾化的形式进料到反应器的下部，而剩余的C1-C4-链烷醇被输送到塔头。

    Process for removal of impurities in alkyl nitrite formation
    309.
    发明授权
    Process for removal of impurities in alkyl nitrite formation 失效
    去除亚硝酸烷基酯形成中的杂质的方法

    公开(公告)号：US4879401A

    公开(公告)日：1989-11-07

    申请号：US102370

    申请日：1987-09-29

    Applicant: Arthur R. Doumaux, Jr. ,  James R. Nelson

    Inventor： Arthur R. Doumaux, Jr. ,  James R. Nelson

    IPC: C07C201/16 ,  C07C67/00 ,  C07C201/00 ,  C07C201/04 ,  C07C203/00 ,  C07C203/02 ,  C07C203/04

    CPC classification number: C07C201/04

    Abstract: A process is provided for removing impurities from the gaseous product of an alkyl nitrite production zone by contacting a portion of it with lower alcohol and oxygen to convert substantially all of the nitric oxide in that portion of the gaseous product stream to alkyl nitrite, the oxygen being present in an amount such that the mole ratio of nitric oxide to oxygen is in the range of about 4:1 to about 2:1 and the lower alcohol being present in the reaction zone such that the mole ratio of nitric oxide to lower alcohol is about 1:1 or less. A recovery stream, comprising alkyl nitrite substantially free of nitric oxide, is withdrawn from the reaction zone and at least a portion of the alkyl produced in the reaction zone is removed. A least a portion of the balance of the recovery stream from which the alkyl nitrite has been removed is purged, thereby removing impurities from the process.

    Abstract translation: 提供了一种通过使其一部分与低级醇和氧接触而从亚硝酸烷基酯生产区的气态产物中除去杂质的方法，以将该部分气态产物流中的所有一氧化氮转化为亚硝酸烷基酯，氧气 存在的量使得一氧化氮与氧的摩尔比在约4:1至约2:1的范围内，低级醇存在于反应区中，使得一氧化氮与低级醇的摩尔比 约为1：1或更少。 包含基本上不含一氧化氮的亚硝酸烷基酯的回收流从反应区中排出，并且除去反应区中产生的烷基的至少一部分。 将亚硝酸烷基酯从其中除去的回收料流的余量的至少一部分被清除，从而从该方法中除去杂质。

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