Process to prepare 5-formylvaleric acid
    11.
    发明授权
    Process to prepare 5-formylvaleric acid 失效
    制备5-甲酰戊酸的方法

    公开(公告)号:US06268530B1

    公开(公告)日:2001-07-31

    申请号:US09030281

    申请日:1998-01-05

    IPC分类号: C07C59147

    摘要: Process to separate linear 5-formylvaleric acid from a mixture of 5- and 3- and 4-formylvaleric acids, wherein the separation is performed by fractional extraction with two immiscible solvents of which one solvent is an aqueous solvent and the other solvent is an organic solvent, in which the organic solvent has a higher or lower affinity for 5-formylvaleric acid than its affinity for the 3-formylvaleric acids and for the 4-formylvaleric acid. Furthermore the invention relates to an improved process to prepare ∈-caprolactam starting from a mixture of branched and linear formylvaleric acids or starting from pentenoic acid.

    摘要翻译: 从5-和3-甲酰基戊酸的混合物中分离线性5-甲酰戊酸的方法,其中分离通过两种不混溶的溶剂进行分离,其中一种溶剂是一种溶剂,另一种溶剂是有机溶剂 溶剂,其中有机溶剂对5-甲酰基戊酸的亲和力高于或低于其对3-甲酰基戊酸和4-甲酰基戊酸的亲和力。 此外,本发明涉及从支链和直链甲酰基戊酸的混合物开始或从戊烯酸开始制备ε-己内酰胺的改进方法。

    System for Detecting the Defects of a Wall Coating, and Procedure for Manufacturing Such a System
    12.
    发明申请
    System for Detecting the Defects of a Wall Coating, and Procedure for Manufacturing Such a System 审中-公开
    用于检测墙涂的缺陷的系统以及制造这种系统的程序

    公开(公告)号:US20080171189A1

    公开(公告)日:2008-07-17

    申请号:US11792023

    申请日:2005-11-29

    摘要: The invention relates to a system for detecting the defects of a wall used for enclosing a space where—generally liquid—materials are stored, with a coating on its internal side, especially a container wall, or/and the defects in the coating. In numerous fields of life all types of different materials, such as chemicals, solvents, petroleum oil and petroleum fractions, etc. need to be stored in a way excluding the possibility of these materials getting into the environment or other materials from the environment intermixing with the stored materials. In most cases such materials are stored in containers made of different materials, mostly metal, the walls of which holes may appear either as a result of corrosion or other damage, and through the appearing holes materials can flow either from outside into the container or from inside the container into the environment, and so the stored material may become unsuitable for use or serious environmental pollution may occur. In the interest of damage prevention different monitoring systems are used to detect holes appearing in container walls as soon as possible.

    摘要翻译: 本发明涉及一种用于检测用于封闭空间的壁的系统,其中通常是液体材料被储存,其内部具有涂层,特别是容器壁,或/和涂层中的缺陷。 在许多生命领域,需要以不同于这些材料进入环境的可能性或与环境混合的其他材料的方式存储所有类型的不同材料,如化学品,溶剂,石油和石油馏分等。 存储的材料。 在大多数情况下,这种材料储存在由不同材料制成的容器中,大部分是金属的,其壁孔由于腐蚀或其他损坏而出现,通过出现的孔,材料可以从外部流入容器或从 在容器内进入环境,因此储存的材料可能不适合使用或可能发生严重的环境污染。 为了防止损害,使用不同的监控系统尽快检测出容器壁上的孔。

    Method for producing ferro-alloys
    15.
    发明授权
    Method for producing ferro-alloys 失效
    铁合金生产方法

    公开(公告)号:US4156102A

    公开(公告)日:1979-05-22

    申请号:US734094

    申请日:1976-10-20

    CPC分类号: C21C5/5217 Y02P10/216

    摘要: An improved method and apparatus for producing ferro-alloys from ore in which an ore is first mixed with a solid reducing agent, preheated and pre-reduced in a rotary kiln, and smelted in an electric furnace, in which the pre-reduced ore is heated by a burner provided in the electric furnace where it is also reoxidized. The ore is also heated in the rotary kiln by recycled gas.

    摘要翻译: 一种用于从矿石中生产铁合金的改进方法和装置,其中矿石首先与固体还原剂混合,在回转窑中预热和预还原,并在电炉中熔炼,其中预还原的矿石是 通过设置在电炉中的燃烧器加热,在那里它也被再氧化。 矿石也通过回收气体在回转窑中加热。

    Continuous hydroformulation process for producing an aldehyde
    16.
    发明申请
    Continuous hydroformulation process for producing an aldehyde 失效
    用于生产醛的连续加氢法制备方法

    公开(公告)号:US20060052644A1

    公开(公告)日:2006-03-09

    申请号:US10474680

    申请日:2002-04-11

    IPC分类号: C07C45/49

    摘要: A continuous hydroformylation process for producing an aldehyde comprising 1) reacting an olefinically unsaturated compound, carbon monoxide and hydrogen in the presence of a rhodium-organobisphosphite complex catalyst at a partial pressure of carbon monoxide and hydrogen, and 2) exposing a mixture comprising at least a portion of the catalyst of 1) to a gaseous mixture comprising hydrogen at a pressure that is greater than the partial pressure of carbon monoxide and hydrogen during the reaction.

    摘要翻译: 一种用于生产醛的连续加氢甲酰化方法,包括:1)在铑 - 有机二亚磷酸酯配合物催化剂存在下,在一氧化碳和氢气的分压下使烯属不饱和化合物,一氧化碳和氢气反应,和2)至少包含至少 一部分催化剂1)在包含氢气的气体混合物中,其压力大于反应期间一氧化碳和氢气的分压。

    Process for the carbonylation of a conjugated diene
    17.
    发明授权
    Process for the carbonylation of a conjugated diene 失效
    共轭二烯的羰基化方法

    公开(公告)号:US06835850B2

    公开(公告)日:2004-12-28

    申请号:US10381040

    申请日:2003-08-25

    IPC分类号: C07C6736

    摘要: Process for the carbonylation of a conjugated diene by reacting the conjugated diene with carbon monoxide and an hydroxyl group containing compound in the presence of a catalyst system based on: (a) a source of palladium cations, (b) a diphosphine ligand, and (c) a source of anions, wherein the diphosphine ligand is a ligand having the general formula I wherein x1 and x2 represent a cyclic group with at least 5 ring atoms, of which one is a phosphorus atom, and R represents a bivalent aliphatic bridging group, connecting both phosphorus atoms, containing from 2 to 4 atoms in the bridge, which is substituted with at least one substituent or R represents a phenyl group with both phosphorus groups bound to the 1,2-position.

    摘要翻译: 通过在催化剂体系的存在下使共轭二烯与一氧化碳和含羟基的化合物反应来共轭二烯羰基化的方法,其基于:(a)钯阳离子源,(b)二膦配体和( c)阴离子源,其中二膦配体是具有通式I的配体,其中x 1和x 2表示具有至少5个环原子的环状基团,其中一个是磷原子,R 代表二价脂肪族桥连基团,其连接两个在原子团中含有2至4个原子的磷原子,该原子被至少一个取代基取代,或R表示两个磷键与1,2-位相结合的苯基。