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    Procedure for the recovery of diolefins from a mixture thereof with monoolefins
    1.
    发明授权
    Procedure for the recovery of diolefins from a mixture thereof with monoolefins 失效
    从与其混合物中回收二烯的方法

    公开(公告)号：US3596436A

    公开(公告)日：1971-08-03

    申请号：US3596436D

    申请日：1970-02-09

    Applicant: SOLVAY

    Inventor： DASSESSE PIERRE

    IPC: C08F6/00 ,  B01D53/04 ,  C07C1/00 ,  C07C7/12 ,  C07C11/02 ,  C07C67/00 ,  C08F6/06 ,  B01D53/02

    CPC classification number: C07C7/12 ,  C07C11/12

    Abstract: A cyclic process is provided for the recovery of diolefins from vapor mixtures thereof with monoolefins by selective adsorption over a solid adsorbent. A mixture of diolefins and monoolefins is circulated in the presence of a solid adsorbent whereby the diolefins are selectively adsorbed. After the solid adsorbent has adsorbed the diolefins, it is treated with superheated steam to cause desorption of the diolefins and the production of a mixture of gaseous diolefins and water vapor. The vapor mixture is then condensed and the diolefins are separated from water by decantation. The adsorbent is dried and cooled by flushing with the mixture of monoolefins from which diolefins have been removed, to complete the regeneration of the adsorbent so that it is suitable for reuse.

    3.
    发明专利
    未知

    公开(公告)号：DE1520841A1

    公开(公告)日：1970-02-19

    申请号：DE1520841

    申请日：1963-12-20

    Applicant: SOLVAY

    Inventor： DASSESSE PIERRE ,  DECHENNE ROGER

    IPC: C08F10/00 ,  C08F1/56

    Abstract: Polymers of olefins, e.g. ethylene or propylene, are made by effecting the polymerization of the monomers in the presence of (a) a metal, hydride, or organometallic compound of a metal of Group IV, V or VI of the Mendel eeff Periodic Table, (b) an inorganic compound of a polyvalent transition metal exhibiting at least three valencies, and (c) a halide of an element of Group IIIb, or Group Vb of the Periodic Table, and (d) an alkali-metal iodide or ammonium iodide. The polymerization may be effected in bulk, or in a hydrocarbon diluent, and the catalyst is preferably preformed. The polymer may be fractionated with boiling heptane. The preferred catalyst is tetrabutyl tin, AlCl3, TiCl3 and NaI. Specifications 860,407 and 960,086 are referred to.

    A PROCESS FOR THE RECOVERY OF OLEFIN (CO)POLYMERS
    4.
    发明专利
    A PROCESS FOR THE RECOVERY OF OLEFIN (CO)POLYMERS 未知

    公开(公告)号：GB1269474A

    公开(公告)日：1972-04-06

    申请号：GB5401669

    申请日：1969-11-04

    Applicant: SOLVAY

    Inventor： DASSESSE PIERRE ,  DELWICHE MARIUS

    IPC: C08C2/06 ,  C08F10/00

    Abstract: 1,269,474. Separation of volatile solvents from polymers. SOLVAY & CIE. 4 Nov., 1969 [7 Nov., 1968], No. 54016/69. Heading BIB. [Also in Division C3] Hydrocarbon solvent and monomers are separated from admixture with an olefine (CO) polymer by introducing the mixture through pipe 4 into tower 5 wherein the mixture undergoes a reduction in pressure and is contacted with an aqueous suspension of (CO) polymer supplied through pipe 6 so that the solvent and monomers are vaporized, and leave the top of the column. The aqueous suspension of (CO) polymer is withdrawn from the base of the column and is pumped through a heat-' exchanger; some of the suspension is then returned to the top of tower 5 through pipe 6, and the remainder is passed to a filter. Steam may be introduced into the tower, if necessary. The tower contains cone-shaped baffles. (For Figure see next column)

    8.
    发明专利
    未知

    公开(公告)号：DE1917858A1

    公开(公告)日：1970-05-27

    申请号：DE1917858

    申请日：1969-04-08

    Applicant: SOLVAY

    Inventor： DASSESSE PIERRE ,  DECHENNE ROGER

    IPC: C08F4/70 ,  C08F10/00 ,  C08F1/56

    Abstract: 1,212,806. Mn, Ni and Co hydroxy chlorides. SOLVAY & CIE. 27 March, 1969 [23 April, 1968], No. 16125/69. Addition to 1,024,336. Heading ClA. [Also in Division C3] Manganese, cobalt and nickel hydroxychlorides are obtained by (i) reacting MnCl 2 or NiCl 2 with NaOH to give Mn(OH)Cl or Ni (OH)Cl, (ii) reacting CoCI 2 with Co(OH) 2 to give Co 2 (OH) 3 Cl mixed with trace amounts of Co(OH) 2 and Co(OH)Cl, and (iii) preparing a paste of Co(OH) 2 by adding NaOH to an aqueous solution of CoCl 2 .6H 2 0 and centrifuging, adding the paste to CoCl 2 .6H 2 0 which has been heated until dissolved in its water of crystallization, and heating at 85‹ C. for 15 hours to give Co(OH)Cl.

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