METHOD FOR REACTING MIXTURE SOLUTION

    公开(公告)号:JP2001010981A

    公开(公告)日:2001-01-16

    申请号:JP2000170202

    申请日:2000-06-07

    Applicant: BASF AG

    Abstract: PROBLEM TO BE SOLVED: To carry out a reaction while controlling the concentration of a specific composition in a mixture and control the selectivity of the chemical reaction by a method comprising the fractionation of a solution of a mixture of compounds of chemically equilibrium state and reacting the fractionated part with other compound. SOLUTION: A solution of a mixture of two or more kinds of compound of chemically equilibrium state is made to react, separately from a reaction of a polyoxymethylene glycol, formaldehyde monomer and/or a formaldehyde solution containing methylene glycol with aniline in the presence of an acid catalyst, with at least one kind of other compound 9. The reaction is carried out by (A) fractionating the mixture into at least two parts (the necessary part 5 and the remaining part 6) containing the different compounds in the mixture existing at a high concentration relative to the chemically equilibrium state by a separation method and (B) reacting a fractionated part 5 with the compound 9 by a main reactor 2 before the complete reforming of the chemical equilibrium to obtain the objective product 10.

    Use of h2s-containing off-gas stream for preparing sulfur-containing product
    2.
    发明专利
    Use of h2s-containing off-gas stream for preparing sulfur-containing product 有权
    使用含H2S的废气流用于制备含硫产品

    公开(公告)号:JP2006169248A

    公开(公告)日:2006-06-29

    申请号:JP2005360769

    申请日:2005-12-14

    Abstract: PROBLEM TO BE SOLVED: To provide a method for producing a thiol, a thioether, and a disulfide, by reacting an olefin with hydrogen sulfide.
    SOLUTION: This method for preparing a sulfur-containing compound expressed by general formula I (Q is -S- or -S-S-; and R
    1 is H or a 1-30C saturated or unsaturated straight-chain or branched-chain alkyl and R
    2 is H or a 1-30C saturated or unsaturated straight-chain or branched-chain alkyl, provided that R
    1 and R
    2 are not allowed to be H at the same time) comprises reacting a mixed gas stream containing the hydrogen sulfide with the 1-30C straight-chain or branched-chain olefin by using, or not using, oxygen, wherein reaction is conducted at a pressure of 2-325 bar in the presence of water and carbon dioxide.
    COPYRIGHT: (C)2006,JPO&NCIPI

    Abstract translation: 待解决的问题:通过使烯烃与硫化氢反应来提供硫醇,硫醚和二硫化物的制备方法。 解决方案:用于制备由通式I表示的含硫化合物(Q为-S-或-SS-;和R 1 的方法为H或1-30℃饱和或不饱和的 直链或支链烷基,R SP2是H或1-30C饱和或不饱和的直链或支链烷基,条件是R“SP”1和R“ 2 不能同时为H)包括通过使用或不使用氧气使含有硫化氢的混合气流与1-30C直链或支链烯烃反应 其中在水和二氧化碳的存在下,在2-325巴的压力下进行反应。 版权所有(C)2006,JPO&NCIPI

    SIMULTANEOUS PRODUCTION OF PLURAL KINDS OF POLYISOCYANATES

    公开(公告)号:JP2000026397A

    公开(公告)日:2000-01-25

    申请号:JP17928199

    申请日:1999-06-25

    Applicant: BASF AG

    Abstract: PROBLEM TO BE SOLVED: To produce plural kinds of isocyanates at the same time in high yield while suppressing the formation of by-products by reacting the corresponding plural kinds of amines with phosgene in a mixing means and a downstream retention time reactor, separating the reaction mixture and fractionating the products. SOLUTION: Plural kinds of isocyanates (e.g. diphenylmethane diisocyanate and toluylene diisocyanate) are produced at the same time by reacting the corresponding plural kinds of amines (e.g. hexamethylenediamine and diphenylmethanediamine) with phosgene in a mixing means (e.g. a static or dynamic mixer) and a downstream retention time reactor, separating the reaction mixture from excess phosgene and hydrogen chloride and fractionating the reaction mixture into individual isocyanate fractions.

    Process for preparing thiol
    5.
    发明专利
    Process for preparing thiol 审中-公开
    制备THIOL的方法

    公开(公告)号:JP2006188509A

    公开(公告)日:2006-07-20

    申请号:JP2005361255

    申请日:2005-12-15

    CPC classification number: C07C319/04 C07C321/04

    Abstract: PROBLEM TO BE SOLVED: To provide a process for preparing an alkylthiol by the addition of hydrogen sulfide to a double bond of an olefin by which the problems caused by the use of a solid acid catalyst are solved.
    SOLUTION: The process for preparing the alkylthiol involves adding hydrogen sulfide to the double bond of the 6-20C olefin at a temperature of from 20 to 150°C and a pressure of from 1 to 40 bar, wherein the reaction is carried out in the presence of at least one liquid organic acid. The use of the liquid organic acid as a catalyst for increasing the selectivity and/or reaction rate in the addition of the hydrogen sulfide to the double bond of the 6-20C olefin to prepare the alkylthiol is also provided.
    COPYRIGHT: (C)2006,JPO&NCIPI

    Abstract translation: 待解决的问题:提供一种通过在通过使用固体酸催化剂引起的问题的烯烃的双键中加入硫化氢来制备烷基硫醇的方法。 解决方案:制备烷基硫醇的方法包括在20〜150℃的温度和1〜40巴的压力下向6-20C烯烃的双键中加入硫化氢,其中反应进行 在至少一种液体有机酸存在下进行。 还提供了使用液体有机酸作为催化剂以增加在6-20℃烯烃的双键中加入硫化氢以制备烷基硫醇的选择性和/或反应速率。 版权所有(C)2006,JPO&NCIPI

    HIGHLY CONCENTRATED FORMALDEHYDE SOLUTION, PRODUCTION AND REACTION THEREOF
    8.
    发明申请
    HIGHLY CONCENTRATED FORMALDEHYDE SOLUTION, PRODUCTION AND REACTION THEREOF 审中-公开
    高浓度的甲醛溶液,生产的实施

    公开(公告)号:WO03040075A3

    公开(公告)日:2003-08-07

    申请号:PCT/EP0212346

    申请日:2002-11-05

    CPC classification number: C07C47/04 C07C45/79 C07C45/82 C07C47/02

    Abstract: The invention relates to an aqueous formaldehyde solution, containing formaldehyde in the form of monomeric formaldehyde, methylene glycol and polyoxymethylene glycols in a total concentration x >/= 65 wt. %. Said solution is characterized in that the average molar mass M of the polyoxymethylene glycols is equal or inferior to the values, which are obtained according to formula I, depending on the formaldehyde concentration, whereby M represents the average molar mass and x the total concentration of formaldehyde in the form of monomeric formaldehyde, methylene glycol and polyoxymethylene glycols in wt. % (formaldehyde total concentration).

    Abstract translation: 本发明涉及包含单体甲醛,亚甲基二醇和聚氧亚甲基二醇在> / = 65重量%的总浓度x的形式甲醛甲醛水溶液,其特征在于,所述聚氧亚甲基二醇中的甲醛浓度的函数的平均摩尔质量M等于或小于 的平均值:值根据式I是获得 - 均分子量M; - 在单体甲醛,亚甲基二醇和以重量%聚甲醛二醇(总甲醛浓度)的形式的甲醛X总浓度。

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