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    Oxidation process for alkylaromatics
    2.
    发明授权
    Oxidation process for alkylaromatics 失效
    烷基芳族化合物的氧化工艺

    公开(公告)号：US4208352A

    公开(公告)日：1980-06-17

    申请号：US640591

    申请日：1975-12-15

    申请人： Lloyd E. Gardner

    发明人： Lloyd E. Gardner

    IPC分类号： B01J27/08 ,  C07C29/50 ,  C07C45/36 ,  C07C51/265 ,  C07C45/02

    CPC分类号： C07C29/50 ,  B01J27/08 ,  C07C45/36 ,  C07C51/265

    摘要： A process is provided for oxygenating alkyl-substituted aromatic compounds. Alkyl-substituted aromatic compounds in the liquid phase are contacted with molecular oxygen at a temperature below 200.degree. C. in the presence of a catalyst system which is substantially insoluble in the reaction mixture at reaction conditions. The catalyst components are a suspended copper compound and a suspended bromine compound which preferably are associated with a major quantity of a suitable catalyst support material. Optionally, the reaction can be carried out in the presence of minor amounts of acetic acid, acetic anhydride or suitable inorganic nitrate compounds.

    摘要翻译： 提供了对烷基取代的芳族化合物进行加氧的方法。 液相中的烷基取代的芳族化合物在低于200℃的温度下，在反应条件下基本上不溶于反应混合物的催化剂体系存在下与分子氧接触。 催化剂组分是悬浮的铜化合物和悬浮的溴化合物，其优选与主要量的合适的催化剂载体材料缔合。 任选地，反应可以在少量的乙酸，乙酸酐或合适的无机硝酸盐化合物的存在下进行。

    Process for preparing diarylketones
    5.
    发明授权
    Process for preparing diarylketones 失效
    制备二芳基酮的方法

    公开(公告)号：US4086277A

    公开(公告)日：1978-04-25

    申请号：US769039

    申请日：1977-02-16

    申请人： Anatoli Onopchenko ,  Johann G. Schulz

    发明人： Anatoli Onopchenko ,  Johann G. Schulz

    IPC分类号： C07C49/784 ,  C07C45/00 ,  C07C45/28 ,  C07C51/27 ,  C07C65/34 ,  C07C67/00 ,  C07C205/04 ,  C07C45/02 ,  C07C76/02

    CPC分类号： C07C51/27 ,  C07C45/28 ,  C07C65/34

    摘要： A process for converting a 1,1-diarylalkane, such as a 1,1-bis(alkylphenyl)alkane, to the corresponding diarylketone which involves oxidizing the 1,1-diarylalkane using critical amounts of 1,1-diarylalkane, nitric acid and water. The reaction product obtained as a result of such oxidation of a 1,1-bis(alkylphenyl)alkane can be further subjected to reaction with additional nitric acid at elevated temperatures in a second stage to convert each of the nuclear alkyl groups on the alkyl-aromatic charge to carboxyl groups and the dilute nitric acid remaining can be employed in the first stage as oxidant.

    摘要翻译： 将1,1-二芳基烷烃如1,1-双（烷基苯基）烷烃转化为相应的二芳基酮的方法，该方法涉及使用临界量的1,1-二芳基烷烃，硝酸和 水。 通过1,1-双（烷基苯基）烷烃的这种氧化获得的反应产物可以在第二阶段中进一步与另外的硝酸在升高的温度下进行反应，以使烷基 - 在第一阶段可以使用芳族电荷与羧基和剩余的稀硝酸作为氧化剂。

    Process for oxidizing hydrocarbons
    6.
    发明授权
    Process for oxidizing hydrocarbons 失效
    氧化烃的方法

    公开(公告)号：US4058565A

    公开(公告)日：1977-11-15

    申请号：US676605

    申请日：1976-04-13

    申请人： Reinhard Thiel ,  Heinz Jorg Rosenbaum

    发明人： Reinhard Thiel ,  Heinz Jorg Rosenbaum

    IPC分类号： C07C29/52 ,  C07C27/12 ,  C07C27/26 ,  C07C29/00 ,  C07C45/02

    CPC分类号： C07C29/52 ,  C07C2101/14 ,  C07C2101/20

    摘要： Hydrocarbons containing 4 to 20 carbon atoms are oxidized by a process which includes the following steps:A. Reacting the hydrocarbons with a gas containing molecular oxygen in the presence of a boron compound;B. hydrolyzing the resulting reaction mixture which contains at least one boric acid ester with an aqueous medium containing boric acid;C. separating the hydrolyzate into a substantially organic component from which the oxidation product is recovered and a substantially aqueous component containing boric acid and water-soluble organic secondary products;D. recovering boric acid from the aqueous component;E. oxidizing the residual boric acid mother liquor from (d), or a part thereof in the liquid phase with a gas containing molecular oxygen; andF. returning the resulting solution from (e) to hydrolysis step (b).

    摘要翻译： 含有4-20个碳原子的烃被包括以下步骤的方法氧化：

    Catalyst activity control in process for converting an alkene to a carbonyl derivative in the presence of a noble metal and redox agent
    10.
    发明授权
    Catalyst activity control in process for converting an alkene to a carbonyl derivative in the presence of a noble metal and redox agent 失效
    在贵金属和氧化还原剂存在下将烯烃转化为羰基衍生物的方法中的催化剂活性控制

    公开(公告)号：US3972946A

    公开(公告)日：1976-08-03

    申请号：US182774

    申请日：1971-09-22

    申请人： Shinya Ochiai ,  Leonard Griffith

    发明人： Shinya Ochiai ,  Leonard Griffith

    IPC分类号： B01J19/00 ,  B01J19/24 ,  C07C45/30 ,  C07C45/02

    CPC分类号： C07C45/30 ,  B01J19/0006 ,  B01J19/242 ,  B01J2219/00065 ,  B01J2219/00164 ,  Y02P20/584

    摘要： In converting an alkene such as ethylene to a carbonyl derivative such as acetaldehyde by a process which comprises passing the alkene through a tubular reactor along with an aqueous acidic catalyst solution comprising a noble metal such as palladium together with a cupric chloride redox agent, followed by separating the carbonyl product from the depleted catalyst solution which is then reoxidized with a source of molecular oxygen such as air prior to being returned to the reactor, continuous depletion of the chloride content of the catalyst solution takes place as a result of the formation of chlorinated reaction by-products. This necessitates replenishment of the chloride content of the catalyst solution by adding hydrochloric acid into a catalyst regeneration zone preceding the catalyst reoxidation step of the process. Over-treating or under-treating with the hydrochloric acid results, however, in occasional process upsets and failure to maintain optimal activity of the catalyst solution and maximum reactor output. The present invention comprises maintaining optimal catalyst activity by adding hydrochloric acid in response to the hydraulic pressure gradient obtaining within the alkene-oxidation reactor, within which a deficiency of acid causes an increasing hydraulic pressure gradient due to fouling of the tubular reactor with precipitated solids. Optimal catalyst activity obtains when the acid addition rate is just sufficient to prevent the inception of a pressure gradient rise due to precipitation of solids within the reactor.

    摘要翻译： 在将乙烯等烯烃转化为羰基衍生物如乙醛的方法中，包括使烯烃与含有贵金属如钯的含水酸性催化剂溶液与氯化铜氧化还原剂一起通过管式反应器，然后 将羰基产物与耗尽的催化剂溶液分离，然后在返回到反应器之前用诸如空气的分子氧源再氧化，催化剂溶液的氯化物含量的连续消耗是由于形成氯化物 反应副产物。 这需要通过在催化剂再氧化步骤之前的催化剂再生区中加入盐酸来补充催化剂溶液的氯化物含量。 然而，用盐酸过度处理或处理不良会导致偶尔的过程紊乱，并且不能保持催化剂溶液的最佳活性和最大的反应器输出。 本发明包括通过在烯烃 - 氧化反应器内获得的液压梯度下加入盐酸来保持最佳的催化剂活性，其中由于具有沉淀固体的管式反应器的结垢，酸的不足导致增加的液压梯度。 当酸添加速率恰好足以防止由于反应器内的固体沉淀引起的压力梯度升高时，获得最佳催化剂活性。