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    CIRCULATION OF HYDROXYL AMINE-CONTAINING STRIPPER SOLUTION
    2.
    发明专利
    CIRCULATION OF HYDROXYL AMINE-CONTAINING STRIPPER SOLUTION 失效

    公开(公告)号：JP2001294410A

    公开(公告)日：2001-10-23

    申请号：JP2001023311

    申请日：2001-01-31

    Applicant: BASF AG

    Inventor： WATZENBERGER OTTO ,  SCHELLING HEINER

    IPC: C02F1/04 ,  B01D3/14 ,  C01B21/14 ,  C02F1/20

    Abstract: PROBLEM TO BE SOLVED: To provide a method capable of easily treating a hydroxyl amine- containing waste liquid used for cleaning electronic parts and reusing each component contained in the waste liquid after a purification process to use in a production process in an electronics industry world. SOLUTION: A hydroxyl amine-containing liquid 2 is passed through a fractionation column 1 and stripped with steam 3 by a counter current method to obtain a hydroxyl amine aqueous solution 7 from a column top part. The aqueous solution is easily degraded because of the poor stabilization effect. An amine aqueous solution 8 is obtained from the column bottom part.

    METHOD FOR THE PRODUCTION OF CHLORINE
    3.
    发明申请
    METHOD FOR THE PRODUCTION OF CHLORINE 审中-公开
    用于生产氯

    公开(公告)号：WO2007085476A2

    公开(公告)日：2007-08-02

    申请号：PCT/EP2007000696

    申请日：2007-01-26

    Applicant: BASF AG ,  SESING MARTIN ,  JACOBSEN KNUD ,  REINHARDT KLAUS-DIETER ,  PALLASCH HANS-JUERGEN ,  VAN DEN ABEEL PETER ,  SCHELLING HEINER

    Inventor： SESING MARTIN ,  JACOBSEN KNUD ,  REINHARDT KLAUS-DIETER ,  PALLASCH HANS-JUERGEN ,  VAN DEN ABEEL PETER ,  SCHELLING HEINER

    CPC classification number: C01B7/04 ,  C01B7/0743

    Abstract: The invention relates to a method for the production of chlorine from hydrogen chloride, comprising the steps: a) introducing a hydrogen chloride containing stream a1 and an oxygen containing stream a2 into an oxidation zone with catalytic oxidation of hydrogen chloride to chlorine to give a product gas stream a3 containing chlorine, water, oxygen, carbon dioxide and inert gases, b) bringing the product gas stream a3 into contact with aqueous hydrochloric acid in a phase contact unit with partial separation of water and hydrogen chloride from the stream a3, to give a remaining gas stream b comprising hydrogen chloride, chlorine, water, oxygen, carbon dioxide and, optionally, inert gases, in which gas stream b at least 5% of the hydrogen chloride contained in stream a3 remains, c) drying the gas stream b to give an essentially dry gas stream c, containing hydrogen chloride, chlorine oxygen, carbon dioxide and optionally inert gases, d) partial liquefaction the gas stream c by compression and cooling, to give an at least partially liquefied stream d, e) gas/liquid separation of the stream d into a gas stream e1, containing chlorine, oxygen, carbon dioxide and optionally inert gases and a liquid stream e2, containing hydrogen chloride, chlorine, oxygen and carbon dioxide and optional recycling of at least part of the gas stream ee1 into step a), f) separation of the liquid stream e2 by distillation in a column into a chlorine stream f1 and a stream f2, essentially containing hydrogen chloride, oxygen and carbon dioxide, wherein a part of the hydrogen chloride condenses at the column head and returns into the column to give a stream f2 with a chlorine content

    Abstract translation: a）将含有流a1和在氧化区和氯化氢向氯的催化氧化的含氧气流A2氯化氢，得到产物气流A3含有氯，水，氧气，二氧化碳和惰性气体：一种用于从氯化氢包括以下步骤制备氯气的过程 是获得的; b）使在用盐酸水溶液I和的水和从该流A3氯化氢部分地分离相接触装置中的产物气流A3，留下一个气流b仍然含有氯化氢，氯，水，氧气，二氧化碳和可能的惰性气体，用的至少5％ 氯化氢包括在残留在气流b的流A3; c）该气流b，其中基本上无水的气流c含有氯化氢保持，氯气，氧气，二氧化碳和可能的惰性气体的干燥; D）通过压缩和冷却，其中获得至少部分液化的流d的气流c的部分液化; E）的流d的气体/液体分离成气流E1包括氯气，氧气，二氧化碳和可能的惰性气体和液体流E2包括氯化氢，氯气，氧气和二氧化碳，和任选地回收至少所述气流e1的一个部分到步骤a）; F）的液体物流e2的分离通过蒸馏在一列中成氯气流F1和基本上的氯化氢，氧气和二氧化碳的现有的电力F2，其中，所述氯化氢的部分冷凝在塔的顶部，并跑作为反流进入柱，由此流F2与 获得<1重量％的氯含量。

    METHOD FOR DRYING AND PRODUCING MICROPOROUS PARTICLES AND A DRYING DEVICE
    4.
    发明申请
    METHOD FOR DRYING AND PRODUCING MICROPOROUS PARTICLES AND A DRYING DEVICE 审中-公开
    工艺干燥和制备微孔颗粒和干燥设备

    公开(公告)号：WO9946203A3

    公开(公告)日：2000-04-06

    申请号：PCT/EP9901591

    申请日：1999-03-11

    Applicant: BASF AG ,  TEICH FRIEDHELM ,  SCHELLING HEINER ,  KOESTER HERBERT ,  KRATZER HORST ,  REICHERT WOLFGANG ,  GALL MARTIN ,  ZIEGLER BERND

    Inventor： TEICH FRIEDHELM ,  SCHELLING HEINER ,  KOESTER HERBERT ,  KRATZER HORST ,  REICHERT WOLFGANG ,  GALL MARTIN ,  ZIEGLER BERND

    IPC: F26B21/10 ,  B01J3/00 ,  C01B33/12 ,  F26B7/00 ,  F26B21/14 ,  C01B33/00

    CPC classification number: F26B7/00

    Abstract: The invention relates to a method for drying microporous particles containing fluid in which the heat required for increasing the temperature is supplied by means of convection by reducing the interfacial tension of the fluid, preferably to 0 to 1/10, especially to 0 to 1/20, pertaining to the interfacial tension of the fluid at room temperature, by correspondingly increasing the temperature when the pressure of the fluid is at a near-critical to supercritical level. The invention also relates to a method for producing microporous, spatially cross-linked particles in which said drying method is applied. In addition, the invention relates to a device for carrying out the drying method. The device comprises a pressure vessel having an inner vessel and a pressure-carrying outer vessel. Said device also comprises suited measuring and regulating devices as well as pumping and heat exchange devices, whereby the inner vessel is provided for accommodating the particles which are to be dried. A gap is provided between the inner and outer vessels.

    Abstract translation: 在用于干燥的微孔的方法，通过在室温下降低流体的界面张力，优选为0至1/10，特别是0至1/20，本粒子含有流体的，所述流体在界面张力由温度近 bisüberkritischem根据对流提供给用于温度上升所需要的热量增加的流体的压力。 此外，本发明涉及一种在其中采用这种干燥过程微孔，三维网络颗粒的制备。 此外，本发明包括用于进行所述干燥处理的装置，该装置包括一压力容器与内部容器和drucktragendem外容器和合适的测量和控制装置和泵和热交换装置，其中，所述内部容器被设置用于保持所述颗粒被干燥，并且内之间 - 外容器和一个间隙设置。

    METHOD FOR PRODUCING AN AQUEOUS SOLUTION OF FREE HYDROXYLAMINE
    5.
    发明专利
    METHOD FOR PRODUCING AN AQUEOUS SOLUTION OF FREE HYDROXYLAMINE 未知

    公开(公告)号：MY123175A

    公开(公告)日：2006-05-31

    申请号：MYPI9803533

    申请日：1998-07-31

    Applicant: BASF AG

    Inventor： STROFER ECKHARD DR ,  WATZENBERGER OTTO DR ,  SCHNEIDER HANS-MICHAEL DR ,  SCHELLING HEINER ,  MAUER PETER

    IPC: C01B21/14

    Abstract: AN AQUEOUS SOLUTION OF FREE HYDROXYLAMINE IS PREPARED BY TREATING A HYDROXYLAMMONIUM SALT WITH AMMONIA BY THE COUNTERCURRENT METHOD IN A STRIPPING COLUMN BY A PROCESS IN WHICH HYDROXYLAMINE IS LIBERATED AND AT THE SAME TIME THE SOLUTION OBTAINED IS SEPARATED BY DISTILLATION INTO AN AQUEOUS HYDROXYLAMINE SOLUTION AND A SALT FRACTION. THE NOVEL PROCESS CAN BE CARRIED OUT IN A SIMPLE AND GENTLE MANNER AND ON A LARGE SCALE. THE DANGER OF DECOMPOSITION IS MINIMIZED OWING TO THE LOW THERMAL LOAD, THE LOW CONCENTRATION OF HYDROXYLAMINE AND THE SHORT RESIDENCE TIME IN THE PROCESS.

    6.
    发明专利
    未知

    公开(公告)号：DE59804740D1

    公开(公告)日：2002-08-14

    申请号：DE59804740

    申请日：1998-08-04

    Applicant: BASF AG

    Inventor： WATZENBERGER OTTO ,  MAUER PETER ,  STROEFER ECKHARD ,  SCHELLING HEINER ,  SCHNEIDER HANS-MICHAEL

    IPC: C01B21/14

    Abstract: An aqueous solution of free hydroxylamine is prepared by treating a hydroxylammonium salt with ammonia by the countercurrent method in a stripping column by a process in which hydroxylamine is liberated and at the same time the solution obtained is separated by distillation into an aqueous hydroxylamine solution and a salt fraction. The novel process can be carried out in a simple and gentle manner and on a large scale. The danger of decomposition is minimized owing to the low thermal load, the low concentration of hydroxylamine and the short residence time in the process.

    Method for producing an aqueous solution of free hydroxylamine
    7.
    发明专利
    Method for producing an aqueous solution of free hydroxylamine 未知

    公开(公告)号：AU748827B2

    公开(公告)日：2002-06-13

    申请号：AU9158698

    申请日：1998-08-04

    Applicant: BASF AG

    Inventor： WATZENBERGER OTTO ,  MAUER PETER ,  STROFER ECKHARD ,  SCHELLING HEINER ,  SCHNEIDER HANS-MICHAEL

    IPC: C01B21/14

    Abstract: An aqueous solution of free hydroxylamine is prepared by treating a hydroxylammonium salt with ammonia by the countercurrent method in a stripping column by a process in which hydroxylamine is liberated and at the same time the solution obtained is separated by distillation into an aqueous hydroxylamine solution and a salt fraction. The novel process can be carried out in a simple and gentle manner and on a large scale. The danger of decomposition is minimized owing to the low thermal load, the low concentration of hydroxylamine and the short residence time in the process.

    8.
    发明专利
    未知

    公开(公告)号：NO20000551D0

    公开(公告)日：2000-02-03

    申请号：NO20000551

    申请日：2000-02-03

    Applicant: BASF AG

    Inventor： WATZENBERGER OTTO ,  MAUER PETER ,  STROEFER ECKHARD ,  SCHELLING HEINER ,  SCHNEIDER HANS-MICHAEL

    IPC: C01B21/14 ,  C01B

    Abstract: An aqueous solution of free hydroxylamine is prepared by treating a hydroxylammonium salt with ammonia by the countercurrent method in a stripping column by a process in which hydroxylamine is liberated and at the same time the solution obtained is separated by distillation into an aqueous hydroxylamine solution and a salt fraction. The novel process can be carried out in a simple and gentle manner and on a large scale. The danger of decomposition is minimized owing to the low thermal load, the low concentration of hydroxylamine and the short residence time in the process.

    METHOD FOR PRODUCING HIGHLY PURE AQUEOUS HYDROXYLAMINE SOLUTIONS
    9.
    发明专利
    METHOD FOR PRODUCING HIGHLY PURE AQUEOUS HYDROXYLAMINE SOLUTIONS 未知

    公开(公告)号：CA2293319A1

    公开(公告)日：1998-12-23

    申请号：CA2293319

    申请日：1998-06-18

    Applicant: BASF AG

    Inventor： STROEFER ECKHARD ,  SCHELLING HEINER ,  WATZENBERGER OTTO ,  PFAB PETER

    IPC: B01D3/00 ,  C01B21/14

    Abstract: The invention relates to a method for the production of highly pure aqueous solution from free hydroxylamine, wherein the diluted aqueous hydroxylamine solution is concentrated in a column, the vapor containing hydroxylamine is removed from the bottom of the column via a side-stream and highly pure hydroxylamine is obtained through condensation of the vapors. The inventive method is simple and mild, can be used in large-scale production and yields "electronic grade" hydroxylamine.

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