中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

164 records (took 0.023 seconds)

    Process for producing alkyl nitrite
    81.
    发明申请
    Process for producing alkyl nitrite 有权
    亚硝酸烷基酯的制备方法

    公开(公告)号：US20050038282A1

    公开(公告)日：2005-02-17

    申请号：US10946475

    申请日：2004-09-21

    Applicant: Ryoji Sugise ,  Shuji Tanaka ,  Hirofumi Ii ,  Kazuaki Mii

    Inventor： Ryoji Sugise ,  Shuji Tanaka ,  Hirofumi Ii ,  Kazuaki Mii

    IPC: C07C201/04 ,  C07C203/00 ,  C07C23/02

    CPC classification number: C07C201/04 ,  C07C203/00

    Abstract: An alkyl nitrite is produced with high efficiency by bringing a nitrogen monoxide gas into contact with an aqueous solution of an alkyl alcohol and nitric acid in a reactor 2, which aqueous solution may be a liquid fraction generated in an alkyl nitrite-production process in which an alkyl alcohol is reacted with nitrogen monoxide and oxygen in a reaction column 1.

    Abstract translation: 通过在反应器2中使一氧化氮气体与烷基醇和硝酸的水溶液接触，可以高效率地生产亚硝酸烷基酯，该水溶液可以是在亚硝酸烷基酯制备方法中产生的液体馏分，其中 在反应塔1中使烷基醇与一氧化氮和氧气反应。

    Process for the continuous preparation of alkyl nitrites
    82.
    发明授权
    Process for the continuous preparation of alkyl nitrites 失效
    连续制备亚硝酸烷基酯的方法

    公开(公告)号：US5412147A

    公开(公告)日：1995-05-02

    申请号：US157779

    申请日：1993-11-24

    Applicant: Heinz Landscheidt ,  Paul Wagner ,  Alexander Klausener

    Inventor： Heinz Landscheidt ,  Paul Wagner ,  Alexander Klausener

    IPC: C07C201/04 ,  C07C203/00

    CPC classification number: C07C201/04

    Abstract: C.sub.1 -C.sub.6 -Alkyl nitrites can be prepared by reacting nitrogen dioxide with C.sub.1 -C.sub.6 -alcohols, by, in a counterflow-operated column, feeding the alcohol or an alcohol/water mixture into the upper part of the column and the nitrogen dioxide or a nitrogen dioxide/inert gas mixture into the lower part of the column. The resulting alkyl nitrite is removed from the column as the top product and the co-formed nitric acid is removed from the column as the bottom product.

    Abstract translation: C 1 -C 6烷基亚硝酸盐可以通过使二氧化氮与C 1 -C 6醇反应来制备，在逆流操作的塔中，将醇或醇/水混合物进料到塔的上部和二氧化氮或 二氧化氮/惰性气体混合物进入塔的下部。 所得到的亚硝酸烷基酯作为顶部产物从塔中除去，共同形成的硝酸作为底部产物从塔中除去。

    Nitration of organic compounds
    83.
    发明授权
    Nitration of organic compounds 失效
    有机化合物的硝化

    公开(公告)号：US4487988A

    公开(公告)日：1984-12-11

    申请号：US489466

    申请日：1983-04-28

    Applicant: Ian M. Campbell ,  Donald L. Baulch ,  Jonathan M. Chappel

    Inventor： Ian M. Campbell ,  Donald L. Baulch ,  Jonathan M. Chappel

    IPC: C07C201/02 ,  C07C201/04 ,  C07C201/08 ,  C07C203/00 ,  C07C203/02 ,  C07C205/02 ,  C07C76/02

    CPC classification number: C07C201/04 ,  C07C201/02 ,  C07C201/08

    Abstract: Organic nitrogen compounds are formed in the vapor phase by organic radical formation by reaction of an organic compound, suitably an alkane, with hydroxyl radicals derived from the reaction between hydrogen peroxide and nitrogen dioxide and the nitration of the organic radicals, suitably with nitrogen dioxide. The process is conducted using a molecular oxygen additive which directs the reaction towards the formation of the nitrate corresponding to the organic compound which may predominate in the organic reaction products.

    Abstract translation: 通过有机化合物（合适的是烷烃）与由过氧化氢和二氧化氮之间的反应衍生的羟基自由基以及适当地用二氧化氮硝化有机自由基的有机自由基形成形成有机氮化合物。 该方法使用分子氧添加剂进行，该分子氧添加剂将反应引导形成对应于有机反应产物中可能占优势的有机化合物的硝酸盐。

    Process for continuously preparing ethylene glycol
    84.
    发明授权
    Process for continuously preparing ethylene glycol 失效
    连续制备乙二醇的方法

    公开(公告)号：US4453026A

    公开(公告)日：1984-06-05

    申请号：US459424

    申请日：1983-01-19

    Applicant: Susumu Tahara ,  Kozo Fujii ,  Keig Nishihira ,  Masaoki Matsuda ,  Katsuhiko Mizutare

    Inventor： Susumu Tahara ,  Kozo Fujii ,  Keig Nishihira ,  Masaoki Matsuda ,  Katsuhiko Mizutare

    IPC: C07C31/20 ,  C07C29/149 ,  C07C29/80 ,  C07C203/00 ,  C07C29/136

    CPC classification number: C07C29/149 ,  C07C201/04 ,  C07C29/80

    Abstract: There is disclosed a process for continuously preparing ethylene glycol, which comprises (1) a first step of contacting a gas containing carbon monoxide and an ester of nitrous acid with a solid catalyst of platinum group metal series in the gaseous phase thereby to obtain a product containing a diester of oxalic acid, (2) a second step of condensing the product of the first step thereby to separate a non-condensed gas containing nitrogen monoxide formed by the catalytic reaction of the first step from a condensed liquid containing the diester of oxalic acid, (3) a third step of contacting the non-condensed gas of the second step with a gas containing molecular oxygen and an alcohol, and recycling the resulting gas containing an ester of nitrous acid to the first step, (4) a fourth step of contacting the condensed liquid of the second step containing the diester of oxalic acid and hydrogen with a catalyst for hydrogenation in the gaseous phase thereby to obtain a product containing ethylene glycol, (5) a fifth step of distilling the product of the fourth step thereby to distill out the alcohol and to obtain ethylene glycol, and (6) a sixth step of recycling the alcohol of the fifth step as an alcohol source for the third step.

    Abstract translation: 公开了连续制备乙二醇的方法，其包括（1）在气相中使含有一氧化碳和亚硝酸酯的气体与铂族金属系固体催化剂接触的第一步骤，从而获得产物 含有草酸二酯的方法，（2）将第一步骤的产物冷凝的第二步骤，由第一步骤的催化反应形成的含有一氧化氮的非冷凝气体与含有草酸二酯的冷凝液分离 酸，（3）使第二步骤的非冷凝气体与含有分子氧和醇的气体接触的第三步骤，并将产生的含有亚硝酸酯的气体再循环至第一步骤，（4）第四步骤 将含有草酸和氢的二酯的第二步骤的冷凝液与气相中的氢化催化剂接触的步骤，从而获得含有eth的产物 （5）第五步骤，蒸馏第四步骤的产物，从而蒸馏出醇并获得乙二醇;和（6）将第五步骤的醇再循环作为醇源的第六步骤， 第三步。

    Alkyl nitrite compositions
    86.
    发明授权
    Alkyl nitrite compositions 失效
    亚硝酸烷基酯组合物

    公开(公告)号：US4309303A

    公开(公告)日：1982-01-05

    申请号：US119169

    申请日：1980-02-06

    Applicant: Walter F. Boyce

    Inventor： Walter F. Boyce

    IPC: C07C201/04 ,  C07C203/00 ,  C09K15/06 ,  C01B21/50 ,  C07C77/00

    CPC classification number: C09K15/06 ,  C07C201/04 ,  Y10S149/118 ,  Y10S149/119

    Abstract: This invention relates to a method of stabilizing liquid alkyl nitrites by adding ethyl hydroxyethyl cellulose, calcium silicate and mixtures thereof and mixing to produce solid state compositions and to stabilized compositions thereof.

    Abstract translation: 本发明涉及通过加入乙基羟乙基纤维素，硅酸钙及其混合物来稳定液体烷基亚硝酸盐的方法，并混合以产生固态组合物及其稳定组合物。

    Nitrite esters
    89.
    发明授权
    Nitrite esters 失效
    亚硝酸酯

    公开(公告)号：US3214458A

    公开(公告)日：1965-10-26

    申请号：US43454565

    申请日：1965-02-23

    Applicant: STAMICARBON

    Inventor： DE ROOIJ ABRAHAM H ,  AGGENBACH PIERRE A M

    IPC: C07C203/00

    CPC classification number: C07C203/00 ,  C07C201/04

    Abstract: Nitrite esters of alkanols and cycloalkanols are prepared by treating the alcohol with a solution of nitrosylsulphuric acid in aqueous sulphuric acid and separating the resulting ester from the mixture containing sulphuric acid, ester, alcohol and water. The resulting sulphuric acid solution may be freed from alcohol, concentrated and reacted with nitrous gases to yield fresh nitrosylsulphuric solution. Specified esters are methyl-, ethyl-, butyl-, amyl- and cyclohexyl-nitrates. The process is illustrated by reference to diagrammatic flow sheets (not shown).

    Abstract translation: 通过用亚硝酰基硫酸在硫酸水溶液中处理醇，并将所得酯与含有硫酸，酯，醇和水的混合物分离，制备链烷醇和环烷醇的亚硝酸酯。 所得到的硫酸溶液可以不含酒精，浓缩并与亚硝基气体反应产生新鲜的亚硝酰基硫酸溶液。 指定的酯是甲基 - ，乙基 - ，丁基 - ，戊基 - 和环己基 - 硝酸酯。 该过程通过参考图示流程图（未示出）进行说明。

Patent Agency Ranking