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101 条记录 (耗时 0.018 秒)

    OXIDATION METHOD
    11.
    发明申请
    OXIDATION METHOD 审中-公开
    氧化方法

    公开(公告)号：WO00048972A1

    公开(公告)日：2000-08-24

    申请号：PCT/JP2000/000689

    申请日：2000-02-08

    IPC分类号： B01J31/02 ,  B01J31/20 ,  B01J31/22 ,  C07B61/00 ,  C07C27/12 ,  C07C29/50 ,  C07C45/33 ,  C07C49/403 ,  C07C51/215 ,  C07C55/14 ,  C07C51/21

    CPC分类号： B01J31/0247 ,  B01J31/006 ,  B01J31/2208 ,  B01J2231/70 ,  B01J2531/845 ,  C07C45/33 ,  C07C49/403

    摘要： A oxidation method which comprises reacting a substrate such as a hydrocarbon, an aldehyde, a ketone, or the like with molecular oxygen in the presence of (1) an oxidation catalyst comprising an imide compound such as N-hydroxyphthalimide or (2) an oxidation catalyst comprising such an imide compound and a cocatalytic oxidating agent such as a transition metal compound (for example, an oxide, a halide, a complex, a heteropolyacid, or the like), wherein the water content in the above oxidation system is 200 moles or less per mole of the imide compound. The oxidation method can be used for oxidizing the substrate with molecular oxygen with good efficiency under mild conditions into a desired compound having high quality.

    摘要翻译： 一种氧化方法，其包括在（1）包含酰亚胺化合物如N-羟基邻苯二甲酰亚胺的氧化催化剂或（2）氧化作用的存在下使基质如烃，醛，酮等与分子氧反应 包含这种酰亚胺化合物的催化剂和助催化剂如过渡金属化合物（例如氧化物，卤化物，络合物，杂多酸等），其中上述氧化体系中的水含量为200摩尔 或更少的每摩尔酰亚胺化合物。 氧化方法可用于在温和条件下以分子氧将基质氧化为良好的效率，成为具有高质量的所需化合物。

    CATALYTIC SYSTEM FOR THE ACYLATION OF CELLULOSE AND A PROCESS FOR PRODUCING AND USING SAID CATALYTIC SYSTEM
    14.
    发明申请
    CATALYTIC SYSTEM FOR THE ACYLATION OF CELLULOSE AND A PROCESS FOR PRODUCING AND USING SAID CATALYTIC SYSTEM 审中-公开
    用于纤维素的聚合的催化体系和用于生产和使用上述催化体系的方法

    公开(公告)号：WO1994014344A1

    公开(公告)日：1994-07-07

    申请号：PCT/RU1993000307

    申请日：1993-12-17

    申请人： AKTSIONERNOE OBSCHESTVO "e;POLIMERSINTEZ"e; ,  GRISHIN, Eduard Pavlovich ,  BONDAR, Valentin Ananievich ,  MIRONOV, Dmitry Petrovich ,  SHAMOLIN, Anatoly Ivanovich

    发明人： AKTSIONERNOE OBSCHESTVO "e;POLIMERSINTEZ"e;

    IPC分类号： A23P01/08

    CPC分类号： B01J31/0247 ,  B01J27/053 ,  B01J2231/40 ,  C08B3/02 ,  C08B3/06

    摘要： A catalytic system for the acylation of cellulose comprises the addition product of sulphuric acid and N,N-dimethyl acetamide as well as free sulphuric acid or free N,N-dimethyl acetamide in the following ratios by weight (in moles): addition product of sulphuric acid with N,N-dimethyl acetamide 1.0; free sulphuric acid, not more than 0.49; or free N,N-dimethyl acetamide not more than 0.40. The process for obtaining such a catalytic system involves allowing sulphuric acid to react with N,N-dimethyl acetamide in the absence of water at a temperature of 0 to 25 DEG C and in the following proportions by weight (in moles): sulphuric acid 1.0; N,N-dimethyl acetamide not more than 1.4. A method of acylating cellulose in the presence of the proposed catalytic system involves treating the cellulose with acetic acid, following which the activated cellulose thus obtained is treated with an aliphatic acid anhydride at a temperature of 10 to 90 DEG C in the presence of the proposed catalytic system whose proportion by weight is 1.5 to 30 % that of the weight of cellulose calculated in respect of sulphuric acid, the weight ratio of the liquid phase to cellulose being accordingly 3 to 7:1. The process for obtaining acetone-soluble primary acetates of cellulose using the proposed catalytic system and acylation method disclosed involves activating the cellulose with acetic acid, acetylating the activated cellulose using acetic anhydride in the presence of the proposed catalytic system which contains 0.2 to 0.4 moles of free N,N-dimethyl acetamide to 1.0 mole of the addition product of sulphuric acid and N,N-dimethyl acetamide, and is applied in an amount equal to 20 to 30 % by weight of the weight of the cellulose calculated in respect of sulphuric acid. The weight ratio of the liquid phase to cellulose is 4 to 7:1 and treatment of the cellulose acetate thus formed with aqueous acetic acid takes place in two stages: in the first stage, treatment is carried out at a temperature of 70 to 85 DEG C for one to two hours with aqueous acetic acid containing 4.0 to 5.0 % by weight water and a neutralizing agent in an amount such that the free sulphuric acid content in the system will be equal to 5.0 to 10.5 % by weight of the cellulose; in the second stage, treatment is carried out with aqueous acetic acid containing 14.0 to 15.0 % water at a temperature of 65 to 70 DEG C for 1 to 2 hours.

    摘要翻译： 用于酰化纤维素的催化体系包括硫酸和N，N-二甲基乙酰胺以及游离硫酸或游离的N，N-二甲基乙酰胺的加成产物，其重量比（以摩尔计）：加成产物 硫酸与N，N-二甲基乙酰胺1.0; 游离硫酸，不大于0.49; 或游离的N，N-二甲基乙酰胺不大于0.40。 获得这样的催化体系的方法包括使硫酸在0-225℃的温度下，在不存在水的情况下与N，N-二甲基乙酰胺反应，并按以下重量比（以摩尔计）：硫酸1.0 ; N，N-二甲基乙酰胺不大于1.4。 在所提出的催化体系存在下，酰化纤维素的方法包括用乙酸处理纤维素，随后在所提出的存在下，将所得活化纤维素在10至90℃的温度下用脂族酸酐处理 催化体系，其重量比为硫酸计算的纤维素重量的1.5至30％，液相与纤维素的重量比相应地为3至7：1。 使用所提出的催化体系和酰化方法获得纤维素的丙酮可溶性初级乙酸酯的方法包括用乙酸活化纤维素，在所提出的催化体系存在下使用乙酸酐乙酰化活化的纤维素，所述催化体系含有0.2至0.4摩尔 游离的N，N-二甲基乙酰胺加入到1.0摩尔硫酸和N，N-二甲基乙酰胺的加成产物中，并以相对于硫酸计算的纤维素重量的20至30重量％ 酸。 液相与纤维素的重量比为4〜7:1，由乙酸水溶液形成的乙酸纤维素处理分两个阶段进行：第一阶段在70〜85℃的温度下进行处理 使用含有4.0-5.0重量％水的乙酸水溶液和一种中和剂，使得体系中的游离硫酸含量为纤维素重量的5.0-10.5％; 在第二阶段中，用含有14.0〜15.0％水的乙酸水溶液在65〜70℃的温度下进行1〜2小时的处理。

    PROCESS FOR MAKING PHENOL AND/OR CYCLOHEXANONE
    15.
    发明申请
    PROCESS FOR MAKING PHENOL AND/OR CYCLOHEXANONE 审中-公开
    制备苯酚和/或环己酮的方法

    公开(公告)号：WO2015076954A2

    公开(公告)日：2015-05-28

    申请号：PCT/US2014/061088

    申请日：2014-10-17

    申请人： EXXONMOBIL CHEMICAL PATENTS INC.

    发明人： DAKKA, Jihad, M. ,  PATEL, Bryan, A.

    IPC分类号： C07C27/10

    CPC分类号： C07C37/08 ,  B01J31/0247 ,  C07C7/10 ,  C07C37/72 ,  C07C45/53 ,  C07C407/00 ,  C07C407/003 ,  C07C2601/14 ,  C07C2601/16 ,  Y02P20/52 ,  C07C39/04 ,  C07C409/14 ,  C07C49/403 ,  C07C13/28

    摘要： A process for making phenol and/or cyclohexanone comprises: (A) oxidizing a cyclohexylbenzene feed to obtain an oxidation product comprising cyclohexylbenzene, cyclohexyl-1 -phenyl- 1 -hydroperoxide and phenol; (B) separating at least a portion of the oxidation product to obtain a first fraction comprising cyclohexyl- 1 -phenyl- 1 -hydroperoxide and a second fraction comprising cyclohexylbenzene and phenol; (C) removing at least a portion of the phenol from at least a portion of the second fraction to obtain a third fraction; (D) recycling at least a portion of the cyclohexylbenzene in the third fraction to the oxidizing step (A); and (E) contacting at least a portion of the cyclohexyl-1 -phenyl- 1 -hydroperoxide in the first fraction with an acid catalyst in a cleavage reactor under cleavage conditions to obtain a cleavage product comprising phenol and cyclohexanone.

    摘要翻译： 制备苯酚和/或环己酮的方法包括：（A）氧化环己基苯进料以获得包含环己基苯，环己基-1-苯基-1-氢过氧化物和苯酚的氧化产物; （B）分离至少一部分氧化产物以获得包含环己基-1-苯基-1-氢过氧化物的第一馏分和包含环己基苯和苯酚的第二馏分; （C）从第二级分的至少一部分除去至少一部分苯酚以获得第三级分; （D）将第三馏分中的至少一部分环己基苯回收至氧化步骤（A）; 和（E）在裂解反应器中在裂解条件下将第一馏分中的环己基-1-苯基-1-氢过氧化物的至少一部分与酸催化剂接触，得到包含苯酚和环己酮的裂解产物。