Cumene recovery
    1.
    发明授权
    Cumene recovery 失效
    昆明恢复

    公开(公告)号:US4239508A

    公开(公告)日:1980-12-16

    申请号:US45714

    申请日:1979-06-05

    CPC classification number: B01J20/26 B01D53/02 C07C7/12

    Abstract: A method for removing cumene vapor from a cumene-containing vapor stream comprises passing the vapor stream through a bed of a substantially dry hydrophobic, macroreticular, water-insoluble, crosslinked polymer containing from 20% to 100% by weight of the polymer, of divinylbenzene or a copolymer of divinylbenzene, the balance being ethylvinylbenzene or styrene or mixtures thereof but not more than 50% of either ethylvinylbenzene or styrene, until the capacity of the polymer or copolymer to remove cumene is substantially exhausted. Thereafter, the cumene is desorbed from the mass or bed of the polymer or copolymer by passing steam through said mass or bed. Without drying, the mass or bed is then ready for reuse.

    Abstract translation: 从含异丙基苯的蒸汽流中除去异丙基苯蒸汽的方法包括使蒸汽流通过基本上干燥的疏水性,大网络,不溶于水的交联聚合物的床,所述聚合物含有20重量%至100重量%的聚合物二乙烯基苯 或二乙烯基苯的共聚物,余量为乙基乙烯基苯或苯乙烯或其混合物,但不超过50%的乙基乙烯基苯或苯乙烯,直到聚合物或共聚物去除枯烯的能力基本上被耗尽。 此后,通过使蒸汽通过所述物质或床,异丙基苯从聚合物或共聚物的质量或床层解吸。 没有干燥,质量或床就可以重新使用了。

    Pigment system for paper
    2.
    发明授权
    Pigment system for paper 失效
    纸张颜料系统

    公开(公告)号:US4752341A

    公开(公告)日:1988-06-21

    申请号:US56035

    申请日:1987-06-01

    Applicant: Steven L. Rock

    Inventor: Steven L. Rock

    CPC classification number: D21H17/675 D21H17/68

    Abstract: Zeolite of a small controlled particle size has been found to be a pigment component to be used with TiO.sub.2 in papermaking. Zeolite A wherein the sodium has been at least partially replaced with calcium and/or hydronium ion is widely useful with TiO.sub.2 in papermaking.

    Decolorization of effluents from pulp mills
    3.
    发明授权
    Decolorization of effluents from pulp mills 失效
    纸浆厂废水脱色

    公开(公告)号:US4049546A

    公开(公告)日:1977-09-20

    申请号:US669563

    申请日:1976-03-23

    Applicant: Steven L. Rock

    Inventor: Steven L. Rock

    CPC classification number: B01J41/046 C02F1/285 Y02W10/37 Y10S210/917

    Abstract: Pulp mill effluents particularly unbleached streams are decolorized by passing those streams through a mass or bed of macroreticular aliphatic weak anion exchange resin at a pH of 6 - 8.5. Preferred resins are further characterized as possessing a high pK.sub.a.

    Abstract translation: 通过使这些物流通过大网络脂肪族弱阴离子交换树脂的质量或床,pH值为6-8.5,将造纸厂废水尤其是未漂白的物流脱色。 优选的树脂被进一步表征为具有高pKa。

    Gaseous phase adsorption using partially pyrolyzed polymer particles
    4.
    发明授权
    Gaseous phase adsorption using partially pyrolyzed polymer particles 失效
    使用部分热解的聚合物颗粒进行气相吸附

    公开(公告)号:US4063912A

    公开(公告)日:1977-12-20

    申请号:US654265

    申请日:1976-02-02

    CPC classification number: B01D53/02 B01J20/22 C08F8/50 C08F2810/20

    Abstract: Partially pyrolyzed particles of macroporous resinous polymer have improved structural stability and utility. Pyrolyzed preformed beads are useful as adsorbents in both gaseous and liquid media to remove impurities such as vinylchloride monomer from gases, aromatic compounds such as barbituates from blood, and phenolics from industrial waste streams. Pyrolyzed materials are also useful as catalysts in industrial and laboratory applications due to the controllable surface area and due to a variety of metals, among other things, that may be incorporated into the particles prior to pyrolysis. Preferred adsorbents are prepared from pyrolyzed beads of macro-reticular ion exchange resins.

    Abstract translation: 大孔树脂聚合物的部分热解颗粒具有改善的结构稳定性和效用。 热解的预制珠粒可用作气相和液体介质中的吸附剂,以从气体中除去杂质如氯乙烯单体,芳族化合物如来自血液的巴比妥,以及来自工业废物流的酚类物质。 热解材料在工业和实验室应用中也可用作催化剂,这是由于可控的表面积以及由于可能在热解之前掺入到颗粒中的各种金属。 优选的吸附剂由大网状离子交换树脂的热解珠制备。

Patent Agency Ranking