Process for preparing methylenedi(phenyl isocyanate)
    31.
    发明授权
    Process for preparing methylenedi(phenyl isocyanate) 有权
    亚甲基二(异氰酸苯酯)

    公开(公告)号:US08907124B2

    公开(公告)日:2014-12-09

    申请号:US13299039

    申请日:2011-11-17

    摘要: The invention relates to a process for preparing methylenedi(phenyl isocyanate), which comprises (a) the phosgenation of two-ring and/or multiring methylenedi(phenylamine), (b) the fractionation of the crude methylenedi(phenyl isocyanate) obtained to give two-ring and multiring isomers, (c) the purification and/or fractionation of the resulting mixture of two-ring isomers of methylenedi(phenyl isocyanate) and (d) the storage of the mixtures obtained in step (c) or in step (b), wherein part of the stored mixtures is reused by means of recirculation in at least one of steps (b) or (c).

    摘要翻译: 本发明涉及一种制备亚甲基二(苯基异氰酸酯)的方法,其包括(a)双环和/或多种亚甲基二苯胺(苯胺)的光气化,(b)将得到的粗亚甲基二(苯基异氰酸酯) (c)纯化和/或分馏得到的亚甲基二异氰酸酯(苯基异氰酸酯)的双环异构体的混合物和(d)在步骤(c)或步骤(c)中获得的混合物的储存 b),其中部分储存的混合物通过在步骤(b)或(c)中的至少一个中的循环再利用。

    METHOD FOR TREATING RESIDUES FROM THE PRODUCTION OF ISOCYANATES
    34.
    发明申请
    METHOD FOR TREATING RESIDUES FROM THE PRODUCTION OF ISOCYANATES 失效
    从生产异氰酸酯处理残留物的方法

    公开(公告)号:US20110021836A1

    公开(公告)日:2011-01-27

    申请号:US12936080

    申请日:2009-04-09

    IPC分类号: C07C211/49

    摘要: The invention relates to a process for the work-up of residues from the production of isocyanates, which comprises the steps: a) hydrolysis of the residues by means of water, b) introduction of the reaction product from step a) into a mixer having a heat transfer surface, c) separation of amine and water from the output from step b), d) separation of water and amine.

    摘要翻译: 本发明涉及一种用于处理异氰酸酯生产残留物的方法,其包括以下步骤:a)通过水水解残留物,b)将来自步骤a)的反应产物引入具有 传热表面,c)从步骤b)的输出分离胺和水,d)水和胺的分离。

    Process for simultaneously preparing 4,4′-diphenylmethanediamine and diphenylmethane diisocyanate and polyphenylenepolymethylene polyisocyanates
    35.
    发明授权
    Process for simultaneously preparing 4,4′-diphenylmethanediamine and diphenylmethane diisocyanate and polyphenylenepolymethylene polyisocyanates 有权
    同时制备4,4'-二苯基甲烷二胺和二苯基甲烷二异氰酸酯和聚亚苯基多亚甲基多异氰酸酯的方法

    公开(公告)号:US07709679B2

    公开(公告)日:2010-05-04

    申请号:US12160163

    申请日:2007-01-12

    IPC分类号: C07C263/10 C07C209/60

    摘要: The invention provides a process for the simultaneous preparation of 4,4′-diphenylmethanediamine and also diphenylmethane diisocyanate and polyphenylenepolymethylene polyisocyanates, which comprises the steps a) preparation of a mixture of diphenylmethanediamine and polyphenylenepolymethylenepolyamines by acid condensation of aniline and formaldehyde and subsequent work-up of the mixture, b) splitting-off of part of the mixture prepared in step a), c) distillation of the mixture separated off in step b) in a column, d) recirculation of the bottom product from step c) to the end product from step a) and condensation of the overhead product from step c), e) distillation of the overhead product from step c) in a column, f) recirculation of the overhead product from step e) to the end product from step a), g) isolation of the 4,4′-diphenylmethanediamine obtained as bottom product in step e), h) reaction of the mixture from step a) with phosgene and subsequent work-up of the reaction product.

    摘要翻译: 本发明提供了同时制备4,4'-二苯基甲二胺和二苯基甲烷二异氰酸酯和聚亚苯基多亚甲基多异氰酸酯的方法,其包括以下步骤:a)通过苯胺和甲醛的酸缩合制备二苯基甲二胺和聚亚苯基多亚甲基多胺的混合物,随后的后处理 的混合物,b)分离步骤a)中制备的一部分混合物,c)在柱中蒸馏步骤b)中分离出的混合物,d)将底部产物从步骤c)再循环到末端 来自步骤a)的产物和来自步骤c)的塔顶馏出物的冷凝,e)在柱中蒸馏步骤c)的塔顶馏出物,f)将塔顶产物从步骤e)再循环到来自步骤a)的最终产物, g)分离步骤e)中作为底部产物获得的4,4'-二苯基甲二胺二糖,h)步骤a)的混合物与光气反应,随后后处理反应物 产品

    HIGH-TEMPERATURE TUBE FURNACE FOR PYROLYSIS
    36.
    发明申请
    HIGH-TEMPERATURE TUBE FURNACE FOR PYROLYSIS 审中-公开
    高温管用于热解

    公开(公告)号:US20090188906A1

    公开(公告)日:2009-07-30

    申请号:US12360968

    申请日:2009-01-28

    IPC分类号: F27B5/14

    摘要: A high-temperature tube furnace for pyrolysis includes a twin-hole ceramic tube including a pyrolysis capillary concentrically arranged within a sintering heat tube which is concentrically arranged within a thermally insulated tube housing. At least one heating tube holding element that is electrically insulative and high-temperature resistant is provided and includes at least three pins disposed radially about the sintering heating tube. Each pin is mounted to the tube housing via a clamp in such a way that the pins are adjustable in the radial direction so that the sintering heating tube is removably disposed between the tips of the pins. The sintering heating tube is connected to a voltage source for applying a heating current to thereto.

    摘要翻译: 用于热解的高温管式炉是包括同心地布置在烧结热管内的热解毛细管的双孔陶瓷管,其同心地布置在绝热管壳体内。 提供至少一个电绝缘和耐高温的加热管保持元件,并且包括设置在烧结加热管径向周围的至少三个销。 每个销通过夹具安装到管壳体上,使得销在径向方向上可调节,使得烧结加热管可拆卸地设置在销的顶端之间。 烧结加热管连接到用于向其施加加热电流的电压源。

    Cryogenic clamp-on pipe anchor
    37.
    发明授权
    Cryogenic clamp-on pipe anchor 有权
    低温夹紧管锚

    公开(公告)号:US07472870B2

    公开(公告)日:2009-01-06

    申请号:US10844090

    申请日:2004-05-12

    IPC分类号: F16L3/08

    摘要: A pipe anchor having: a base cradle with a lug; a top cradle with a lug and secured to the base cradle so as to encircle a pipe within the base cradle and the top cradle; a locking mechanism with opposite mating components attached to the base cradle and the top cradle; at least one lug attached to the pipe; and insulation material filling a space between the pipe and the cradles, wherein the insulation material engages the at least one lug of the pipe and the lugs of the cradles.

    摘要翻译: 一种管锚,具有:具有凸耳的底座; 具有凸耳并固定到基座的顶架,以便围绕底架和顶托中的管; 具有连接到所述底座和所述顶部支架的相对配合部件的锁定机构; 至少一个连接到管道的凸耳; 以及绝缘材料,其填充所述管道和所述托架之间的空间,其中所述绝缘材料接合所述管道的至少一个凸耳和所述托架的凸耳。

    Process for Simultaneously Preparing 4,4'- Diphenylmethanediamine and Diphenylmethane Diisocyanate and Polyphenylenepolymethylene Polyisocyanates
    38.
    发明申请
    Process for Simultaneously Preparing 4,4'- Diphenylmethanediamine and Diphenylmethane Diisocyanate and Polyphenylenepolymethylene Polyisocyanates 有权
    同时制备4,4'-二苯基甲二胺和二苯甲烷二异氰酸酯和多亚苯基聚亚甲基多异氰酸酯的方法

    公开(公告)号:US20090005596A1

    公开(公告)日:2009-01-01

    申请号:US12160163

    申请日:2007-01-12

    IPC分类号: C07C211/09

    摘要: The invention provides aprocess for the simultaneous preparation of 4,4′-diphenylmethanediamine and also diphenylmethane diisocyanate and polyphenylenepolymethylene polyisocyanates, which comprises the steps a) preparation of a mixture of diphenylmethanediamine and polyphenylenepolymethylenepolyamines by acid condensation of aniline and formaldehyde and sub-sequent work-up of the mixture, b) splitting-off of part of the mixture prepared in step a), c) distillation of the mixture separated off in step b) in a column, d) recirculation of the bottom product from step c) to the end product from step a) and condensation of the overhead product from step c), e) distillation of the overhead product from step c) in a column, f) recirculation of the overhead product from step e) to the end product from step a), g) isolation of the 4,4′-diphenylmethanediamine obtained as bottom product in step e), h) reaction of the mixture from step a) with phosgene and subsequent work-up of the reaction product.

    摘要翻译: 本发明提供了同时制备4,4'-二苯基甲烷二胺以及二苯基甲烷二异氰酸酯和聚亚苯基多亚甲基多异氰酸酯的方法,其包括以下步骤:a)通过苯胺和甲醛的酸缩合制备二苯基甲二胺和聚亚苯基多亚甲基多胺的混合物, - b)分离步骤a)中制备的部分混合物,c)在柱中蒸馏步骤b)中分离出的混合物,d)将底部产物从步骤c)再循环至 来自步骤a)的最终产物和来自步骤c)的塔顶馏出物的缩合,e)将柱子产物从步骤c)中蒸馏出来,f)将塔顶产物从步骤e)再循环到来自步骤 a),g)分离步骤e)中作为底部产物获得的4,4'-二苯基甲烷二胺,h)步骤a)的混合物与光气的反应和随后的反应产物的后处理 ct。

    Rack oven and associated rack carrier
    39.
    发明授权
    Rack oven and associated rack carrier 失效
    机架式烤箱和相关的机架

    公开(公告)号:US06883513B2

    公开(公告)日:2005-04-26

    申请号:US10656842

    申请日:2003-09-05

    申请人: Michael Bock

    发明人: Michael Bock

    IPC分类号: A21B1/44 A21B3/04 F24B1/00

    CPC分类号: A21B1/44 A21B3/04

    摘要: A rack oven includes a rack carrier with a main body ant at least one side support connected to the main body for movement between a rack holding position and a rack transfer position. The main body and side support form a rack receiving channel. The side support may be biased into one of the rack holding and the rack transfer positions.

    摘要翻译: 架式烤箱包括具有主体的机架托架,至少一个侧支撑件连接到主体,用于在机架保持位置和机架传送位置之间移动。 主体和侧支撑形成机架接收通道。 侧支撑件可以被偏压到搁架保持和支架传送位置之一。