Preparation of cellulose acetate
    1.
    发明授权
    Preparation of cellulose acetate 失效
    乙酸纤维素的制备

    公开(公告)号:US4234719A

    公开(公告)日:1980-11-18

    申请号:US53612

    申请日:1979-06-29

    申请人: Chee-Gen Wan

    发明人: Chee-Gen Wan

    CPC分类号: C08B3/06 C07C51/56

    摘要: Cellulose acetate is produced from methanol, carbon monoxide and cellulose in an integrated series of steps wherein acetic anhydride produced in a first step by the carbonylation of methyl acetate is used to acetylate cellulose to produce cellulose acetate and to co-produce acetic acid, the co-produced acetic acid is dehydrated and the dehydrated acetic acid reacted with methanol to produce methyl acetate which is then fed to the first step and carbonylated to produce additional quantities of acetic anhydride.

    摘要翻译: 乙酸纤维素以甲醇,一氧化碳和纤维素的一系列步骤生产,其中在第一步中通过羰基化乙酸甲酯生产的乙酸酐用于乙酰化纤维素以生产乙酸纤维素并共同生产乙酸,该共混物 脱水的乙酸被脱水,脱水的乙酸与甲醇反应生成乙酸甲酯,然后将其加入到第一步骤中,并进行羰基化以产生额外量的乙酸酐。

    Process for the preparation of acetic anhydride
    2.
    发明授权
    Process for the preparation of acetic anhydride 失效
    制备乙酸酐的方法

    公开(公告)号:US4284586A

    公开(公告)日:1981-08-18

    申请号:US106628

    申请日:1979-12-26

    申请人: Joseph Pugach

    发明人: Joseph Pugach

    CPC分类号: C07C51/56

    摘要: Acetic anhydride is prepared from methyl acetate and/or dimethyl ether in carbonylation processes comprising the use of a halide, carbon monoxide and a Group VIII noble metal in the presence of promoters comprising metallic hafnium and an organo-phosphorus compound or an organo-nitrogen compound wherein the phosphorus and nitrogen are trivalent, or an arsine of the formula: ##STR1## wherein R and R.sup.1 are monocyclic aryl groups or alkyl groups and R.sup.2 is the radical ##STR2## a monocyclic aryl group or an alkyl group, and wherein R.sup.3 and R.sup.4 are each a monocyclic aryl group or an alkyl group, n being zero or a digit from 1-20.

    摘要翻译: 在包含金属铪和有机磷化合物或有机 - 氮化合物的助催化剂存在下,在包括使用卤化物,一氧化碳和第Ⅷ族贵金属的羰基化方法中,由乙酸甲酯和/或二甲醚制备乙酸酐 或其中R和R 1为单环芳基或烷基,R 2为单环芳基或烷基基团,并且其中R 3和R 3为 R4各自为单环芳基或烷基,n为0或1-20的数字。

    Process for the manufacture of carbamates
    3.
    发明授权
    Process for the manufacture of carbamates 失效
    制造氨基甲酸酯的方法

    公开(公告)号:US4260781A

    公开(公告)日:1981-04-07

    申请号:US042675

    申请日:1979-05-25

    申请人: Robert J. Harvey

    发明人: Robert J. Harvey

    CPC分类号: C07C271/06

    摘要: A process for the production of carbamates is provided in which an organic primary or secondary amine is contacted, in the substantial absence of reactive oxygen, with a source of carbon monoxide, an organic compound containing at least one hydroxyl group, and a metal reactant comprising at least one member selected from the group consisting of compounds and complexes of Group VIII of the Periodic Table.

    摘要翻译: 提供了一种生产氨基甲酸酯的方法,其中有机伯胺或仲胺在基本上不存在活性氧的情况下与一氧化碳源,含有至少一个羟基的有机化合物和金属反应物相接触,包括 选自由元素周期表第VIII族的化合物和络合物组成的组中的至少一种。

    Treatment of carbonylation effluent
    4.
    发明授权
    Treatment of carbonylation effluent 失效
    羰基化废水处理

    公开(公告)号:US4241219A

    公开(公告)日:1980-12-23

    申请号:US61712

    申请日:1979-07-30

    申请人: Chee-Gen Wan

    发明人: Chee-Gen Wan

    CPC分类号: C07C51/12 C07C51/56

    摘要: In the carbonylation of esters and/or ethers the reaction mixture is separated into fractions to recover components therefrom, gases are withdrawn from the system and halogen values are recovered from said gases by contact with a component recovered from said reaction mixture.

    摘要翻译: 在酯和/或醚的羰基化反应中,将反应混合物分离成馏分以从其中回收组分,从系统中取出气体,并通过与从所述反应混合物回收的组分接触从所述气体中回收卤素值。

    Process for preparing cellulose acetate
    5.
    发明授权
    Process for preparing cellulose acetate 失效
    醋酸纤维素的制备方法

    公开(公告)号:US4234718A

    公开(公告)日:1980-11-18

    申请号:US53611

    申请日:1979-06-29

    申请人: David Brown

    发明人: David Brown

    CPC分类号: C08B3/06 C07C51/56

    摘要: Cellulose acetate is produced from methanol, carbon monoxide and cellulose in an integrated series of steps wherein acetic anhydride produced in a first step by the carbonylation of methyl acetate is used to acetylate cellulose to produce cellulose acetate and to co-produce acetic acid is converted to ketene, the ketene is reacted with methanol to produce methyl acetate which is then fed to the first step and carbonylated to produce additional quantities of acetic anhydride.

    摘要翻译: 乙酸纤维素以甲醇,一氧化碳和纤维素的一系列步骤生产,其中在第一步中通过羰基化乙酸甲酯生产的乙酸酐用于乙酰化纤维素以生产乙酸纤维素并共同生产乙酸转化为 乙烯酮,乙烯酮与甲醇反应产生乙酸甲酯,然后将其加入到第一步骤中并羰基化以产生额外量的乙酸酐。

    Preparation of propylene oxide
    8.
    发明授权
    Preparation of propylene oxide 失效
    环氧丙烷的制备

    公开(公告)号:US4290959A

    公开(公告)日:1981-09-22

    申请号:US110424

    申请日:1980-01-07

    申请人: Robert S. Barker

    发明人: Robert S. Barker

    摘要: An improved process for preparing propylene oxide is provided in which propylene is oxidized by means of a thallic salt in the presence of aqueous media containing an alkanoic acid having at least seven carbon atoms and optionally in the presence of an organic solvent.

    摘要翻译: 提供一种制备环氧丙烷的改进方法,其中在含有至少7个碳原子的链烷酸和任选在有机溶剂存在下的含水介质存在下,丙烯被非金属盐氧化。

    Process for the preparation of acetic anhydride
    9.
    发明授权
    Process for the preparation of acetic anhydride 失效
    制备乙酸酐的方法

    公开(公告)号:US4284585A

    公开(公告)日:1981-08-18

    申请号:US106627

    申请日:1979-12-26

    申请人: Joseph Pugach

    发明人: Joseph Pugach

    CPC分类号: C07C51/56

    摘要: Acetic anhydride is prepared from methyl acetate and/or dimethyl ether in carbonylation processes comprising the use of a halide, carbon monoxide and a Group VIII noble metal in the presence of promoters comprising metallic zirconium and an organo-phosphorus compound or an organo-nitrogen compound wherein the phosphorus and nitrogen are trivalent, or an arsine of the formula: ##STR1## wherein R and R.sup.1 are monocyclic aryl groups or alkyl groups and R.sup.2 is the radical ##STR2## a monocyclic aryl group or an alkyl group, and wherein R.sup.3 and R.sup.4 are each a monocyclic aryl group or an alkyl group, n being zero or a digit from 1-20.

    摘要翻译: 乙酸酐和/或二甲醚在羰基化方法中制备,包括在包含金属锆和有机磷化合物或有机氮化合物的助催化剂存在下使用卤化物,一氧化碳和第Ⅷ族贵金属 或其中R和R 1为单环芳基或烷基,R 2为单环芳基或烷基基团,并且其中R 3和R 3为 R4各自为单环芳基或烷基,n为0或1-20的数字。

    Novel 2-bromoethyl tellurium bromides
    10.
    发明授权
    Novel 2-bromoethyl tellurium bromides 失效
    新型2-溴乙基碲溴化物

    公开(公告)号:US4271090A

    公开(公告)日:1981-06-02

    申请号:US88998

    申请日:1979-10-29

    IPC分类号: C07C395/00 C07C165/00

    CPC分类号: C07C395/00

    摘要: The novel bis (2-bromoethyl) tellurium dibromide and 2-bromoethyl tellurium tribromide are prepared by reacting ethylene with a source of tellurium tetrabromide in an inert, non-basic organic solvent under certain temperature conditions and in the substantial absence of molecular oxygen.

    摘要翻译: 通过乙烯与四溴化碲源在惰性非碱性有机溶剂中,在一定温度条件下,基本上不存在分子氧来制备新型双(2-溴乙基)二溴化碲和2-溴乙基碲三溴化物。