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    5.
    发明专利
    未知

    公开(公告)号：DE1294950B

    公开(公告)日：1969-05-14

    申请号：DEB0090068

    申请日：1966-11-30

    Applicant: BASF AG

    Inventor： KERBER ,  HORST DR ,  HAGEN ,  WERNER DR ,  SCHROEDER ,  WOLFGANG DR

    IPC: C07C27/22 ,  C07C29/16 ,  C07C45/50 ,  C07C45/78

    Abstract: 1,195,877. Separation of vaporous aldehydes obtained in the oxo process. BADISCHE ANILIN- & SODA FABRIK A.G. 29 Nov., 1967 [30 Nov., 1966], No. 54282/67. Heading C2C. Vaporous aldehydes are separated from offgas formed in the oxo process, by scrubbing the offgas with an oxonation product boiling above 95‹ C. and/or a hydrogenated oxonation product boiling above 95‹ C. Preferably 0À1-2 kg. of the scrubbing material is used per cubic metre of offgas to be scrubbed. Examples recover (a) propionaldehyde by scrubbing the oxo product obtained from ethylene, carbon monoxide and water with a mixture comprising npropanol, para-propionaldehyde and higher boiling condensation products of propionaldehyde, (b) n - butyraldehyde and isobutyraldehyde. Valeraldehyde is also particularly suitable for separation by the method of the invention.

    6.
    发明专利
    未知

    公开(公告)号：DE1294589B

    公开(公告)日：1969-05-08

    申请号：DEB0087463

    申请日：1966-06-08

    Applicant: BASF AG

    Inventor： MARTIN ,  WOLFGANG DR ,  HAHN ,  EDELFRIED DR ,  SCHMID ,  HANS DIPL-ING ,  WENGER ,  FRIEDRICH DR

    IPC: D02G1/00

    Abstract: 1,181,290. Mechanically crimping yarn. BADISCHE ANILIN-& SODA-FABRIK A.G. 7 June, 1967 [8 June, 1966], No. 26264/ 67. Heading D1F. Apparatus for producing crimped yarn comprises a heating zone and a yarn guide which produces undulations in the yarn transversely to the direction of movement of the yarn, and is characterised by a casing 11 having parallel ribs formed with coaxially running openings 12 for guiding the yarn, and by a yarn guide 14 capable of oscillatory movement perpendicular to the direction of yarn movement and which has one or more limbs located in the gaps between the ribs and provided with coaxially running openings 15 for guiding the yarn. The yarn, which may be monofilaments, fibre bundles, bristles or ribbons, is preferably thermoplastics material and is heated to at least 100‹C below the crystalline melting point of the material. The casing 11 is enclosed in a heating chamber.

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