Olefin oligomerization with surface modified zeolite catalyst
    4.
    发明授权
    Olefin oligomerization with surface modified zeolite catalyst 失效
    烯烃低聚与表面改性沸石催化剂

    公开(公告)号:US4870038A

    公开(公告)日:1989-09-26

    申请号:US140361

    申请日:1988-01-04

    摘要: A process for producing substantially linear hydrocarbons by oligomerizing a lower olefin at elevated temperature and pressure which comprises contacting the lower olefin under oligomerization/polymerization conditions with siliceous acidic ZSM-23 zeolite having Bronsted acid activity; wherein the zeolite has acidic pore activity and wherein the zeolite surface is rendered substantially inactive for acidic reactions. The zeolite surface can be neutralized by a bulky pyridine compound having an effective cross-section larger than the zeolite pore. The preferred deactivating agent is 2,4,6-collidine, which may be applied to the zeolite as a pretreatment or added with olefin feed in a continuous process. The olefin oligomers may be used as alkylating agents to prepare biodegradable alkylbenzenes and alkylphenylsulfonates. A preferred catalyst for this alkylation reaction is dealuminized mordenite.

    摘要翻译: 一种通过在升高的温度和压力下使低级烯烃低聚制备基本上线性的烃的方法,其包括在低聚/聚合条件下使低级烯烃与具有布朗斯台德酸活性的硅酸性酸性ZSM-23沸石接触; 其中所述沸石具有酸性孔隙活性,并且其中所述沸石表面对于酸性反应基本上不起作用。 沸石表面可以被具有大于沸石孔的有效横截面的体积大的吡啶化合物中和。 优选的去活化剂是2,4,6-可力丁,其可以作为预处理施加到沸石上,或者在连续方法中加入烯烃进料。 烯烃低聚物可用作烷基化剂以制备可生物降解的烷基苯和烷基苯基磺酸盐。 用于该烷基化反应的优选催化剂是脱铝丝光沸石。

    Selective ethylation of mono alkyl benzenes
    5.
    发明授权
    Selective ethylation of mono alkyl benzenes 失效
    单烷基苯的选择性乙基化

    公开(公告)号:US4086287A

    公开(公告)日:1978-04-25

    申请号:US706981

    申请日:1976-07-19

    摘要: A catalytic process is provided for the ethylation of a mono alkyl benzene wherein the alkyl substituent contains 1 or 2 carbon atoms, i.e. toluene or ethylbenzene, to selectively produce the para ethyl derivative thereof, i.e. para ethyltoluene or para diethylbenzene by contacting said mono alkyl benzene, under conversion conditions, with an ethylating agent in the presence of a catalyst comprising a crystalline aluminosilicate zeolite, which zeolite is characterized by an activity, in terms of alpha value, of between about 2 and about 5000, and preferably between about 20 and about 500, a xylene sorption capacity greater than 1 gram/100 grams of zeolite and an ortho xylene sorption time for 30 percent of said capacity of greater than 10 minutes, said sorption capacity and sorption time being measured at 120.degree. C. and a xylene pressure of 4.5 .+-. 0.8 mm. of mercury, said catalyst comprising a crystalline aluminosilicate zeolite having a silica to alumina ratio of at least about 12 and a constraint index, as hereinafter defined, within the approximate range of 1 to 12 to yield a resulting product in which the para ethyl derivative of said mono alkyl benzene is present in an amount greater than the thermodynamic equilibrium concentration thereof in the total dialkyl substituted benzenes produced.

    摘要翻译: 提供了用于使烷基取代基含有1或2个碳原子即甲苯或乙苯的单烷基苯的乙基化的催化方法,以选择性地制备其对乙基衍生物,即对乙基甲苯或对二乙基苯,通过使所述单烷基苯 在转化条件下,在含有结晶硅铝酸盐沸石的催化剂的存在下,用乙基化剂,该沸石的特征在于α值在约2-约5000之间,优选约20-约 500,大于1克/ 100克沸石的二甲苯吸附容量和大于10分钟的所述容量的30%的邻二甲苯吸附时间,所述吸附容量和吸附时间在120℃下测量,并且二甲苯压力 为4.5 +/- 0.8mm。 的所述催化剂,所述催化剂包含二氧化硅与氧化铝之比至少为约12的结晶硅铝酸盐沸石,约束指数(如下文所定义)在约1至12的范围内,以产生所得产物,其中对位乙基衍生物 所述单烷基苯的存在量大于所生成的全部二烷基取代的苯中的热力学平衡浓度。

    Selective production of para-xylene
    6.
    发明授权
    Selective production of para-xylene 失效
    选择性生产对二甲苯

    公开(公告)号:US4034053A

    公开(公告)日:1977-07-05

    申请号:US638861

    申请日:1975-12-08

    摘要: A catalytic process is provided for the selective production of para-xylene by contacting, under conversion conditions, a charge stock containing, as a major reactant, at least one hydrocarbon selected from the group consisting of toluene, a C.sub.3 -C.sub.10 olefin, and mixtures of the foregoing with a catalyst comprising a crystalline aluminosilicate zeolite having a silica to alumina ratio of at least about 12, a constraint index, as hereinafter defined, within the approximate range of 1 to 12 and which has combined therewith magnesium in an amount of at least about 0.5 percent by weight.

    摘要翻译: 提供催化方法用于选择性生产对二甲苯,在转化条件下,将含有作为主要反应物的至少一种选自甲苯,C 3 -C 10烯烃和其混合物的烃, 的催化剂包括具有至少约12的二氧化硅与氧化铝之比的结晶硅铝酸盐沸石的催化剂,如下文所定义的约束指数在约1至12的范围内,并且其中镁的含量为 至少约0.5重量%。

    Preparation of alkyl carboxylates
    8.
    发明授权
    Preparation of alkyl carboxylates 失效
    羧酸烷基酯的制备

    公开(公告)号:US4365083A

    公开(公告)日:1982-12-21

    申请号:US217979

    申请日:1980-12-19

    申请人: Lewis B. Young

    发明人: Lewis B. Young

    IPC分类号: C07C67/04

    CPC分类号: C07C67/04

    摘要: A method for preparation of alkyl carboxylate compounds, and especially methylalkyl carboxylate compounds, by reaction of an olefin and a carboxylic acid compound in the presence of a mordenite catalyst.

    摘要翻译: 在丝光沸石催化剂存在下,通过烯烃和羧酸化合物的反应来制备羧酸烷基酯化合物,特别是甲基烷基羧酸酯化合物的方法。

    Preparation of 2-phenylalkanes
    9.
    发明授权
    Preparation of 2-phenylalkanes 失效
    2-苯基烷烃的制备

    公开(公告)号:US4301317A

    公开(公告)日:1981-11-17

    申请号:US96095

    申请日:1979-11-20

    申请人: Lewis B. Young

    发明人: Lewis B. Young

    IPC分类号: C07C2/66 C07C2/64 C07C15/107

    摘要: A process for the selective alkylation of substituted or unsubstituted benzene compounds with relatively long chain length alkylating agents to produce phenylalkanes having an improved yield of the 2-phenylkane isomer. The reaction is carried out in the presence of crystalline zeolite catalysts characterized by channels or networks of pores having openings with a major dimension of 6-7 angstroms.

    摘要翻译: 用相对长链烷基化剂选择性烷基化取代或未取代的苯化合物的方法,以制备具有改善的2-苯基烷基异构体产率的苯基烷烃。 反应在结晶沸石催化剂的存在下进行,其特征在于具有6-7埃的主要尺寸的孔的通道或网孔。

    Long-chain alkylphenols
    10.
    发明授权
    Long-chain alkylphenols 失效
    长链烷基酚

    公开(公告)号:US4283573A

    公开(公告)日:1981-08-11

    申请号:US96093

    申请日:1979-11-20

    申请人: Lewis B. Young

    发明人: Lewis B. Young

    IPC分类号: C07C37/11 C07C37/14 C07C37/16

    CPC分类号: C07C37/16 C07C37/14 C07C37/48

    摘要: A method for producing long chain-length alkylphenols with preferential production of para-alkylphenols and placement of the phenolic moiety at the #2 position on the alkyl chain. The reaction is carried out in the presence of crystalline zeolites having a major pore dimension of about six to seven angstrom units.

    摘要翻译: 一种生产长链烷基酚的方法,优先生产对位烷基酚,并将酚部分置于烷基链上的#2位置。 该反应在具有约6至7埃单位的主孔尺寸的结晶沸石存在下进行。