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11 条记录 (耗时 0.01 秒)

    BITUMINOUS MIXTURES WITH A HIGH POLYMER CONTENT
    4.
    发明公开
    BITUMINOUS MIXTURES WITH A HIGH POLYMER CONTENT 有权
    高聚合物含量含沥青混合料

    公开(公告)号：EP2350200A1

    公开(公告)日：2011-08-03

    申请号：EP09795804.5

    申请日：2009-11-05

    申请人： ENI S.p.A.

    发明人： ITALIA, Paolo ,  D'ELIA, Luigi

    IPC分类号： C08L95/00 ,  C08J3/22

    CPC分类号： C08J3/226 ,  C08J2391/06 ,  C08J2495/00 ,  C08L95/00 ,  C08L2555/72 ,  C08L2555/84 ,  C08L2666/02 ,  C08L91/06 ,  C08L53/02

    摘要： The invention relates to a process for the preparation of mixtures containing bitumen and thermoplastic polymer at a high concentration, stable during storage, with particular characteristics of easy processability and movability which, once diluted, allow modified bitumens to be obtained with high performance characteristics. In particular, the process allows mixtures containing bitumen, thermoplastic polymer and wax, to be prepared, wherein the polymer is in a quantity varying from 5 to 30% by weight with respect to the weight of the mixture consisting of bitumen and polymer, and the wax is in a quantity varying from 4.7 to 16.7% by weight with respect to the weight of the total mixture, and comprises reacting a concentrated mixture (A), stable during storage, containing bitumen and from 5 to 30% by weight of thermoplastic polymer, with a hydrocarbon wax containing at least 40 carbon atoms and having a melting point of at least 700C, in a weight ratio between the mixture (A) and wax ranging from 100:5 to 100:20, at a temperature ranging from 160 to 2000C and for a time ranging from 15 minutes to 7 hours, preferably from 15 to 120 minutes. An object of the invention also relates to new mixtures containing bitumen and thermoplastic polymer at a high concentration and mixtures obtainable from these by dilution.

    PROCESS FOR RECOVERING OIL AND SULFONATES FROM FILTRATION PANELS
    8.
    发明授权
    PROCESS FOR RECOVERING OIL AND SULFONATES FROM FILTRATION PANELS 有权
    过程从过滤磺酸盐的恢复Rückstanden

    公开(公告)号：EP1240175B1

    公开(公告)日：2003-09-03

    申请号：EP00990806.2

    申请日：2000-12-18

    申请人： ENI S.p.A.

    发明人： D'ELIA, Luigi ,  PIANTA, Orazio

    IPC分类号： C07G17/00 ,  C07C303/44 ,  C10M159/24

    CPC分类号： C07G17/008 ,  C07C303/44 ,  C10M159/24 ,  C07C309/04

    摘要： Process for treating filtration panels obtained by the filtration of oils containing sulfonates of earth-alkaline metal, the above filtration being carried out in the presence of filter aids essentially consisting of siliceous material, which comprises: (a) dilution of the filtration panel with a C4-C8 aliphatic hydrocarbon, preferably hexane, and addition of another filter aid, thus obtaining a suspension of the panel and of the filter aid in the aliphatic hydrocarbon; (b) filtration of the suspension of step (a), thus obtaining a solid essentially consisting of filter aid with a minimum content of sulfonate and a turbid C4-C8 hydrocarbon solution (i); (c) centrifugation of the turbid hydrocarbon solution (i), thus obtaining a solid and a purified hydrocarbon solution (ii); (d) treatment of the purified hydrocarbon solution (ii) with means suitable for eliminating the C4-C8 hydrocarbons, thus recovering the sulfonate of earth-alkaline metal.