IMPROVED METHOD FOR PRODUCING BIPHENOLS FROM MONOPHENOLS
    1.
    发明申请
    IMPROVED METHOD FOR PRODUCING BIPHENOLS FROM MONOPHENOLS 审中-公开
    改进工艺用于生产双酚关单酚

    公开(公告)号:WO2006106123A3

    公开(公告)日:2007-01-18

    申请号:PCT/EP2006061352

    申请日:2006-04-05

    CPC classification number: C07C37/11 C07C39/15

    Abstract: The invention relates to a method for producing biphenols of general formula (I) by reacting monophenols of general formula (II), wherein the radicals R1, R2 and R3 independently represent hydrogen, alkyl, aryl or arylalkyl, with 1 - 10 C-atoms, in the presence of an oxidation agent in a reactor. Said method is characterised in that a) the reactor does not contain any stationary integrated components which act as a current agitator, b) a maximum of 0,6 mol of oxidation agents are used per mol of monophenol, and c) the oxidation agent is added in a continuous or discontinuous manner in a plurality of portions within a time span of between 10 min - 24 hours, whereby the amount of oxidation agent which is added per time unit is not constant over the entire tine span, but is varied.

    Abstract translation: 一种用于在一个存在下,通过式(II)其中基团R1,R2和R3独立地是氢,烷基,芳基或芳烷基的碳原子数1〜10中的一元酚的反应由通式(I)制备双酚过程 氧化剂在反应器中,其特征在于:a)反应器含有不作为挡板作用固定设备,b)中的最大0.6摩尔的氧化剂是每单酚的一倍摩尔使用的,和c)在一段10分钟至24氧化剂 小时或者连续,或间歇地在几个部分中,加入,引入氧化剂的每单位量不随时间恒定的整个期间而被改变。

    8.
    发明专利
    未知

    公开(公告)号:BRPI0506587B1

    公开(公告)日:2014-10-29

    申请号:BRPI0506587

    申请日:2005-01-27

    Applicant: BASF AG

    Abstract: A process is described for preparing 3-pentenenitrile, characterized by the following process steps: (a) reacting 1,3-butadiene with hydrogen cyanide over at least one catalyst to obtain a stream 1 which comprises 3-pentenenitrile, 2-methyl-3-butenenitrile, the at least one catalyst and 1,3-butadiene, (b) distilling stream 1 in a column to obtain a high-1,3-butadiene stream 2 as the top product and a low-1,3-butadiene stream 3 as the bottom product which comprises 3-pentenenitrile, the at least one catalyst and 2-methyl-3-butenenitrile, (c) distilling stream 3 in a column to obtain a stream 4 as the top product which comprises 1,3-butadiene, a stream 5 which comprises 3-pentenenitrile and 2-methyl-3-butenenitrile at a side draw of the column, and a stream 6 as the bottom product which comprises the at least one catalyst, (d) distilling stream 5 to obtain a stream 7 as the top product which comprises 2-methyl-3-butenenitrile, and a stream 8 as the bottom product which comprises 3-pentenenitrile.

    9.
    发明专利
    未知

    公开(公告)号:BRPI0506581B1

    公开(公告)日:2014-10-29

    申请号:BRPI0506581

    申请日:2005-01-27

    Applicant: BASF AG

    Abstract: An adiponitrile/methylglutaronitrile preparation process includes distilling a reaction stream to obtain stream 3 depleted in pentenenitriles (bottom product) and stream 4 enriched in pentenenitriles (top product); extracting stream 3 obtaining stream 6 enriched with extractant (top product) and stream 7 depleted in extractant (bottom product); distilling stream 6 obtaining stream 8 comprising the catalyst (bottom product) and stream 9 comprising the extractant (top product); distilling stream 7 obtaining stream 10 (bottom product) and stream 11 comprising the extractant (top product); distilling stream 10 obtaining stream 12 comprising catalyst degradation products, at least one promotor, adiponitrile and methylglutaronitrile (bottom product) and stream 13 comprising pentenenitriles (top product); distilling stream 12 obtaining stream 14 comprising catalyst degradation products and the promotor(s) (bottom product) and stream 15 comprising adiponitrile and methylglutaronitrile (top product); distilling stream 15 obtaining stream 16 comprising adiponitrile (bottom product) and stream 17 comprising methylglutaronitrile (top product).

    METHOD FOR REMOVING WATER FROM A MIXTURE CONTAINING WATER AND ZINC CHLORIDE

    公开(公告)号:CA2491791C

    公开(公告)日:2010-12-21

    申请号:CA2491791

    申请日:2003-07-04

    Applicant: BASF AG

    Abstract: The invention relates to a method for removing water from a mixture containing water and zinc chloride. The invention is characterized in that said mixture containing water and zinc chloride is mixed with an aprotic, polar diluting agent whose boiling point, in the event of non-azeotropic formation of said diluting agent with water under the pressure conditions of the distillation mentioned below, is higher than the boiling point of water and is liquid at the boiling point of water or one azeotrope or heteroazeotrope with water is formed under the pressure and temperature conditions of the distillation mentioned below, and the mixture containing water, zinc chloride and the diluting agent is distilled while removing water or said azeotrope or said heteroazeotrope from this mixture while obtaining a water-free mixture containing zinc chloride and said diluting agent.

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