Process for the preparation of alpha-oxoaldehydes
    1.
    发明授权
    Process for the preparation of alpha-oxoaldehydes 失效
    制备α-氧代醛的方法

    公开(公告)号:US06313343B1

    公开(公告)日:2001-11-06

    申请号:US09462527

    申请日:2000-01-07

    IPC分类号: C07C6966

    摘要: Alkylene glycol is oxidized in a vapor phase in the presence of alcohol (a), oxygen, and a catalyst (a) (primary reaction). &agr;-oxoaldehyde, and alcohol (b) or olefin, are oxidized in a vapor phase in the presence of oxygen and a catalyst (b) (secondary reaction). A molar ratio of the alkylene glycol to the alcohol (a) is preferably in a range of 1/100 to 5/1. It is preferable that one same compound is used as the alcohol (a) and the alcohol (b). In the case where the primary and secondary reactions are successively executed, a reaction device in which a primary reactor and a secondary reactor are connected in a two-stage connection type is preferably used. This ensures that a method is provided that is capable of producing &agr;-oxoaldehyde at a higher yield than conventionally, and further, that is capable of stably obtaining an &agr;-oxoaldehyde solution or gas with a higher concentration than conventionally.

    摘要翻译: 在醇(a),氧气和催化剂(a)(初级反应)的存在下,在气相中氧化亚烷基二醇。 α-氧代醛和醇(b)或烯烃在氧气和催化剂(b)的存在下在气相中被氧化(二次反应)。 亚烷基二醇与醇(a)的摩尔比优选在1/100〜5/1的范围内。 优选使用一种相同的化合物作为醇(a)和醇(b)。 在连续进行一次反应和二次反应的情况下,优选使用其中一级反应器和二级反应器以两级连接型连接的反应装置。 这确保了提供能够以比常规方法更高的产率生产α-氧代醛的方法,并且还能够稳定地获得比常规浓度高的α-氧代醛溶液或气体。

    Process for production of alkyl ether of phenol and catalyst used therein
    2.
    发明授权
    Process for production of alkyl ether of phenol and catalyst used therein 失效
    苯酚烷基醚的制备方法及其中使用的催化剂

    公开(公告)号:US5817886A

    公开(公告)日:1998-10-06

    申请号:US772908

    申请日:1996-12-24

    IPC分类号: B01J23/04 C07C41/09

    CPC分类号: B01J23/04 C07C41/09

    摘要: The present invention provides a process for producing an alkyl ether of a phenol from a phenol and an alcohol at a selectivity and a yield higher than in conventional processes, stably over a long period of time. The process is characterized by alkyl-etherifying a phenol with an alcohol in the presence of an oxide catalyst comprising an alkali metal as a constituent element.

    摘要翻译: 本发明提供一种苯酚和醇的苯酚烷基醚的制备方法,其选择性和产率高于常规方法,长期稳定。 该方法的特征在于在包含碱金属作为构成元素的氧化物催化剂的存在下,用醇烷基醚化苯酚。

    Process for production of unsaturated ether and catalyst used for
production of unsaturated ether
    5.
    发明授权
    Process for production of unsaturated ether and catalyst used for production of unsaturated ether 失效
    用于生产不饱和醚的不饱和醚和催化剂的生产方法

    公开(公告)号:US5650544A

    公开(公告)日:1997-07-22

    申请号:US528859

    申请日:1995-09-15

    摘要: The present invention provides a process for producing an unsaturated ether, which comprises subjecting a glycol ether to intramolecular dehydration in a gas phase in the presence of a catalyst to convert the glycol ether into an unsaturated ether directly in a one-step reaction. As the catalyst, an oxide containing, for example, silicon and an alkali metal is used. The process, which uses no auxiliary raw material, can produce an unsaturated ether (a vinyl ether and/or an allyl ether) simply and safely without generating any waste material derived from the auxiliary raw material.

    摘要翻译: 本发明提供一种不饱和醚的制造方法,其特征在于,在催化剂存在下,使二醇醚进行气相分子内脱水,直接在一步反应中将二醇醚转化为不饱和醚。 作为催化剂,使用含有例如硅和碱金属的氧化物。 不使用辅助原料的方法可以简单,安全地生产不饱和醚(乙烯基醚和/或烯丙基醚),而不产生源自辅助原料的任何废料。

    Catalyst for production of tertiary N-alkenyl carboxylic acid amide, and
process for production of tertiary N-alkenyl carboxylic acid amide
using said catalyst
    6.
    发明授权
    Catalyst for production of tertiary N-alkenyl carboxylic acid amide, and process for production of tertiary N-alkenyl carboxylic acid amide using said catalyst 失效
    用于制备叔N-链烯基羧酸酰胺的催化剂,以及使用所述催化剂制备叔N-链烯基羧酸酰胺的方法

    公开(公告)号:US5625076A

    公开(公告)日:1997-04-29

    申请号:US529324

    申请日:1995-09-18

    摘要: The present invention provides a catalyst which is an oxide comprising silicon and at least one element selected from the group consisting of alkali metals and alkaline earth metals and which is used for gas-phase intramolecular dehydration of a tertiary N-(2-hydroxyalkyl) carboxylic acid amide to synthesize a tertiary N-alkenyl carboxylic acid amide. This catalyst enables continuous and efficient production of a tertiary N-alkenyl carboxylic acid amide from a tertiary N-(2-hydroxyalkyl) carboxylic acid amide without using any auxiliary raw material, and consequently allows for simple and safe production of a tertiary N-alkenyl carboxylic acid amide without generating any by-product (waste product) derived from the auxiliary raw material.

    摘要翻译: 本发明提供一种催化剂,其是包含硅和至少一种选自碱金属和碱土金属的元素的氧化物,其用于三次N-(2-羟基烷基)羧酸的气相分子内脱水 酰胺,合成叔N-链烯基羧酸酰胺。 该催化剂能够在不使用任何辅助原料的情况下从叔N-(2-羟基烷基)羧酸酰胺连续且有效地制备叔N-链烯基羧酸酰胺,从而允许简单和安全地生产叔N-烯基 不产生源自辅助原料的任何副产物(废物)。

    Process for preparing alkylene sulfides
    7.
    发明授权
    Process for preparing alkylene sulfides 失效
    制备亚烷基硫化物的方法

    公开(公告)号:US5304656A

    公开(公告)日:1994-04-19

    申请号:US980009

    申请日:1992-11-23

    IPC分类号: C07D331/02

    CPC分类号: C07D331/02

    摘要: In a process for preparing alkylene sulfides through the intramolecular dehydration reaction of mercaptoalkanols in a gaseous phase, catalysts are used, which are represented by the formula: M.sub.a X.sub.b Y.sub.c O.sub.d, where M represents at least one element selected from the group of alkali metals, alkaline earth metals and thallium; X represents at least one element selected from the group of Al, B, Si and P; Y represents at least one element selected from the group consisting of lanthanides, IIIA group, IVA group, VA group, IIIB group, IVB group, VB group and VIB group, excluding an element contained in M or X; O represents oxygen; and a and b are numerical values not equal to 0; b=0.2-100 and c=0-50 when a=1; and d is a numerical value determined according to a, b and c.

    摘要翻译: 在通过巯基链烷醇在气相中的分子内脱水反应制备亚烷基硫化物的方法中,使用由下式表示的催化剂:MaXbYcOd,其中M表示选自碱金属,碱土金属中的至少一种元素 和铊; X表示选自Al,B,Si和P中的至少一种元素; Y表示选自镧系元素,IIIA族,IVA族,VA族,IIIB族,IVB族,VB族和VIB族中的至少一种元素,不包括M或X中含有的元素; O表示氧; a和b是不等于0的数值; 当a = 1时,b = 0.2-100和c = 0-50; d是根据a,b和c确定的数值。

    Process for producing cyclic amines
    8.
    发明授权
    Process for producing cyclic amines 失效
    环胺的制备方法

    公开(公告)号:US4841061A

    公开(公告)日:1989-06-20

    申请号:US126351

    申请日:1987-11-30

    摘要: A process for producing a cyclic amine represented by the general formula ##STR1## wherein each of R and R' is selected from hydrogen, a methyl group and an ethyl group, and n is an integer of 2 to 5, which comprises vapor-phase intramolecular dehydration reaction of an alkanolamine represented by the general formula ##STR2## wherein R, R' and n are as defined above, said reaction being carried out in the presence of, as a catalyst, an oxide composition represented by the following formulaX.sub.a P.sub.b Y.sub.c O.sub.dwherein X is at least one element selected from transition metal elements of Groups I through VIII, lanthanide elements, actinide elements and elements of Group IIIA in the periodic table, Si, Ge, Sn, Pb, Sb and Bi, P is phosphorus, Y is at least one element selected from alkali metal elements and alkaline earth metal elements, O is oxygen, the suffixes a, b, c and d are the atomic ratios of the elements X, P, Y and O respectively, and when a=1, b=0.01-6, preferably 0.05-3, and c=0-3, preferably 0.01-2, and d is a value determined by a, b and c and the state of bonding of the constituent elements.

    摘要翻译: 一种制备由通式(II)表示的环胺的方法,其中R和R'各自选自氢,甲基和乙基,n为2至5的整数,其包括 由通式(I)表示的链烷醇胺的气相分子内脱水反应其中R,R'和n如上所定义,所述反应在作为催化剂的存在下进行,所述氧化物组合物代表 通过下式XaPbYcOd,其中X是选自元素周期表中的第I至VIII族的过渡金属元素,镧系元素,锕系元素和IIIA族的元素中的至少一种元素,Si,Ge,Sn,Pb,Sb和Bi, P是磷,Y是选自碱金属元素和碱土金属元素中的至少一种元素,O是氧,后缀a,b,c和d分别是元素X,P,Y和O的原子比, 当a = 1时,b = 0.01-6,优选为0.05-3,c = 0-3, 优选为0.01-2,d为由a,b和c确定的值以及组成元素的结合状态。