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    • 2. 发明授权
    • Continuous preparation of alkyl esters of (meth)acrylic acid
    • 连续制备(甲基)丙烯酸的烷基酯
    • US06072076A
    • 2000-06-06
    • US789542
    • 1997-01-27
    • Willi SchmidtMatthias GeisendorferAlexander WeckToni DocknerHolger HerbstGerhard Nestler
    • Willi SchmidtMatthias GeisendorferAlexander WeckToni DocknerHolger HerbstGerhard Nestler
    • B01J31/02C07B61/00C07C67/08C07C67/54C07C69/54C07C69/52
    • C07C67/08
    • In a process for the continuous preparation of alkyl esters of (meth)acrylic acid by reacting (meth)acrylic acid with alkanols having from 1 to 8 carbon atoms in a homogeneous, liquid, solvent-free phase at elevated temperature and in the presence of an acid esterification catalyst, in which the (meth)acrylic acid, the alkanol and the acid catalyst are fed to a reaction zone, the water formed is removed by rectification during a residence time as constituent of a mixture comprising starting alkanol in a rectification unit (III) superposed on the reaction zone, the distillate obtained is separated into an organic phase comprising alkanol and an aqueous phase comprising water, the organic phase is essentially completely returned to the rectification unit (III), the reaction mixture is discharged from the reaction zone and conveyed into a distillative separation zone comprising further rectification units and in the latter the alkyl (meth)acrylate formed is separated off.a) (Meth)acrylic acid and alkanol are reacted in a molar ratio of from 1:0.75 to 1:2, b) part of the aqueous phase obtained at the top of the rectification unit (III) is returned to the rectification unit, c) the reaction mixture discharged from the reaction zone is fed to a further rectification unit (I) and in this the reaction mixture is separated into a product (II) comprising the catalyst and a product (I) comprising the alkyl ester of (meth)acrylic acid, remaining alkanol and remaining (meth)acrylic acid, and d) the product (I) is fed to a further rectification unit (II) and in this the alkyl ester of (meth)acrylic acid is separated from the remaining alkanol and from the remaining (meth)acrylic acid and the remaining alkanol and the remaining (meth)acrylic acid are returned to the reaction zone.
    • 在(甲基)丙烯酸的烷基酯的连续制备方法中,通过使(甲基)丙烯酸与具有1至8个碳原子的链烷醇在均相,液体,无溶剂相中在升高的温度下和在 将(甲基)丙烯酸,链烷醇和酸催化剂进料到反应区中的酸酯化催化剂,在停留时间内通过精馏除去形成的水,作为在精馏单元中起始烷醇的混合物的组分 (III),将获得的馏出物分离成包含链烷醇和含水的水相的有机相,有机相基本上完全返回到精馏单元(III),将反应混合物从反应物中排出 并输送到包含进一步精馏单元的蒸馏分离区中,后者分离形成的(甲基)丙烯酸烷基酯。 a)(甲基)丙烯酸和链烷醇的摩尔比为1:0.75至1:2,b)将在精馏单元(III)顶部获得的部分水相返回至精馏单元, c)将从反应区排出的反应混合物加入到另一精馏单元(I)中,并将反应混合物分离成包含催化剂的产物(II)和包含(甲基)丙烯酸烷基酯的产物(I) )丙烯酸,残留的链烷醇和剩余的(甲基)丙烯酸,以及d)将产物(I)加入到另一精馏单元(II)中,在此将(甲基)丙烯酸的烷基酯与剩余的链烷醇 和剩余的(甲基)丙烯酸和剩余的链烷醇和剩余的(甲基)丙烯酸返回到反应区。
    • 3. 发明授权
    • Ship with several decks having longitudinal and lateral support elements
arranged in a grid
    • 具有多个甲板的船舶具有布置成格栅的纵向和横向支撑元件
    • US4658747A
    • 1987-04-21
    • US580611
    • 1984-02-16
    • Hans-Joachim FranzKarl-Otto SadlerWilli Schmidt
    • Hans-Joachim FranzKarl-Otto SadlerWilli Schmidt
    • B63B3/48B63B3/08B63B3/54B63B11/02
    • B63B3/08B63B11/02
    • A maritime structure such as a ship, and in particular a warship, has a plurality of vertically spaced decks which bear foundation seatings, hatches and/or assembly openings; in the plane of each deck, longitudinal parallel support elements, and lateral support elements are arranged in the form of a unit grid, which has longitudinal and transverse grid lines forming a matrix of grid units. The longitudinal grid lines, as well as the transverse grid lines are located at predetermined uniform spacing, the spacing of the lateral grid lines being perferably twice the spacing of longitudinal grid lines. The load bearing longitudinal and transverse beams and girders of base support units and the functional units, pallets, support frames, modules, deck houses, etc., as well as the hatches, assembly openings and access openings are incorporated into the unit grid; in other words, said girders and beams are disposed to coincide with said longitudinal and transverse grid lines. Some pairs of beams which run in the same direction and are on superjacent decks, have vertical wall-members bridging them; the vertical wall-members may be load-bearing and may have access-openings of predetermined size in them. Functional units may be easily replaced, removed and shifted on any deck easily.
    • 诸如船舶,特别是军舰的海上结构具有多个垂直间隔的甲板,其承载基座,舱口和/或组装开口; 在每个甲板的平面中,纵向平行的支撑元件和横向支撑元件以单元格栅的形式布置,其具有形成网格单元矩阵的纵向和横向网格线。 纵向网格线以及横向网格线以预定的均匀间隔定位,横向网格线的间距优选为纵向网格线的间距的两倍。 基座支撑单元和功能单元,托盘,支撑框架,模块,甲板室等的承载纵向和横向梁和梁,以及舱口,组装开口和进入开口并入单元格栅中; 换句话说,所述桁材和梁被设置成与所述纵向和横向网格线重合。 在相同方向上运行并位于上层甲板上的一些梁对具有垂直的壁构件桥接它们; 垂直壁构件可以是承重的,并且在其中可以具有预定尺寸的通路开口。 功能单元可以方便地在任何甲板上更换,拆卸和移动。
    • 7. 发明授权
    • Ship with a piping system arranged on an inner deck
    • 船上配有内层甲板上的管道系统
    • US4561372A
    • 1985-12-31
    • US580613
    • 1984-02-16
    • Hans-Joachim FranzKarl-Otto SadlerWilli Schmidt
    • Hans-Joachim FranzKarl-Otto SadlerWilli Schmidt
    • B63B9/00B63H21/38B63J2/14F16L3/00B63B25/08
    • B63J2/14B63B9/00F16L3/00B63B2770/00
    • A piping system in a maritime structure, such as a ship, is subdivided into individual piping units at predetermined intervals in the longitudinal and/or lateral direction along lateral or longitudinal dividing planes. The piping units are disposed and supported on removable pallets mounted on a surface in the interior of the ship, e.g., on a selected deck, or bottom deck of the ship. The open ends of corresponding mating pipes of adjacent piping units are arranged at the dividing planes. The corresponding pipes of one piping unit and corresponding mating pipes of adjacent piping units are connected in a fluid-tight manner by means of removable pipe connectors. The dividing planes may advantageously be made to coincide with a grid having lines which are drawn to divide a deck length and width uniformly. The piping units may be standardized and prefabricated.
    • 诸如船舶的海事结构中的管道系统沿着横向或纵向分割平面以纵向和/或横向方向以预定的间隔细分为各个管道单元。 管道单元被布置和支撑在安装在船舶内部的表面上的可移动的托盘上,例如在船的选定的甲板或底层甲板上。 相邻管道单元的相应配合管的开口端布置在分割平面处。 一个管道单元的相应管道和相邻管道单元的相应配合管道通过可移除的管道连接器以流体密封的方式连接。 可以有利地使分割平面与具有被划分为具有均匀划分甲板长度和宽度的线的网格重合。 管道单元可以标准化和预制。