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。

    9.
    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.

    10.
    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).

Patent Agency Ranking