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    Fluidisation reactor
    11.
    发明专利
    Fluidisation reactor 未知

    公开(公告)号：GB1014205A

    公开(公告)日：1965-12-22

    申请号：GB1854664

    申请日：1964-05-05

    Applicant: BASF AG

    Inventor： HAEBERLE MANFRED ,  JOHN GUENTHER ,  WUERFLINGER ALBERT ,  ZIZLSPERGER JOHANN

    IPC: B01J8/34 ,  B01J8/44

    Abstract: Ethylene may be polymerized by passing into a fluidized bed of granular catalyst consisting of 2% chromium on a silica-alumina carrier, the bed being maintained at 105 DEG C. and 35 atm. to give a product having a molecular weight of 400,000. The reactor comprises distributer plates of special form (see Division B1).

    Improvements in and apparatus for purifying high pressure polyethylene
    15.
    发明专利
    Improvements in and apparatus for purifying high pressure polyethylene 未知

    公开(公告)号：GB871281A

    公开(公告)日：1961-06-28

    申请号：GB413860

    申请日：1960-02-05

    Applicant: BASF AG

    Inventor： GOEBEL SIEBERT ,  HAEBERLE MANFRED ,  ZACHER WIELAND ,  SCHMIDT-THOMEE GEORG

    IPC: C08F10/00

    Abstract: In a process for the purification of polyethylene, obtained by polymerization at pressures above 500 excess atmospheres, by freeing it from gaseous and volatile non-gaseous constituents including unreacted monomer, in which the polyethylene, after reaction using a catalyst in a reaction vessel, is led therefrom first into a separator which is at a lower pressure than the reaction pressure, preferably less than 5 excess atmospheres and thence in finely divided form with a large surface area into a degasification chamber in which the polyethylene is subjected to vacuum treatment and thence to an extruder, provision being made to exclude air over the whole path of the polyethylene from the reaction vessel to the extruder, steam is introduced into the separator at a temperature of about 150 DEG C. and is discharged from the separator together with a part of the gaseous and volatile constituents. Further steam, water or an organic solvent may be added to the polyethylene after it leaves the separator and before it enters the degasification chamber. Polymers miscible with polyethylene may be added thereto in the separator and further processed therewith. Apparatus suitable for carrying out the process of the invention is described and illustrated.

    Improvements in the formation of drops of liquid
    16.
    发明专利
    Improvements in the formation of drops of liquid 未知

    公开(公告)号：GB811032A

    公开(公告)日：1959-03-25

    申请号：GB3399055

    申请日：1955-11-28

    Applicant: BASF AG

    Inventor： EILBRACHT HANS ,  HAEBERLE MANFRED

    IPC: B01J2/02

    Abstract: 811,032. Drop-moulding machines. BADISCHE ANILIN- & SODA-FABRIK A.G. Nov. 28, 1955, No. 33990/55. Addition to 789,685. Class 87(2). [Also in Group XVIII] Drops which may be formed into pellets by allowing them to fall onto a cool surface 4 or which may be allowed to fall into and mix with a liquid are formed by supplying the liquid to a tube 1 and reciprocating a piston 2, the lower end of which projects below the tube. The piston may have enlargements or constrictions and the tube may taper. The piston may be reciprocated by an electromagnet or a cam. In a modification, Fig. 2 (not shown), the gap between the piston and the tube is so small that liquid will not flow continuously with the piston stationary.

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