Pavement Binder
    2.
    发明授权
    Pavement Binder 失效
    路面粘合剂

    公开(公告)号:US5549744A

    公开(公告)日:1996-08-27

    申请号:US525898

    申请日:1995-09-08

    IPC分类号: C08L95/00 E01C7/26 C09D195/00

    CPC分类号: E01C7/267 C08L95/00 E01C7/265

    摘要: The present invention provides for a method of making storage stable road paving binders by blending a minor amount of a polymer having at least one diene monomer with a major amount of asphalt containing at least 0.3% by weight of total nitrogen at an elevated temperature such that the components are sufficiently fluid to blend; treating the asphalt-polymer blend using not more than 250 meq of a sulfonating agent per 100 g of asphalt-polymer blend to introduce the corresponding acid functionality into the blend; maintaining the sulfonated asphalt-polymer blend at a sufficiently elevated temperature and stripping the sulfonated blend with sufficient chemically unreactive gas to remove a major fraction of the acid functionality introduced by sulfonation. The invention also provides for the compositions made by the process. These are useful as binders in road paving applications.

    摘要翻译: 本发明提供一种通过将少量具有至少一种二烯单体的聚合物与主要含量为总氮至少0.3重量%的沥青在升高的温度下混合来制备储存稳定的铺路粘合剂的方法,使得 组分充分流体混合; 使用每100g沥青聚合物共混物不超过250meq的磺化剂处理沥青聚合物共混物以将相应的酸官能团引入到共混物中; 在充分升高的温度下保持磺化沥青聚合物共混物,并用足够的化学反应性气体汽提磺化的共混物,以除去通过磺化引入的大部分酸性官能团。 本发明还提供了通过该方法制备的组合物。 这些作为道路铺路应用中的粘合剂是有用的。

    Polymer-modified, oxidized asphalt compositions and methods of
preparation
    3.
    发明授权
    Polymer-modified, oxidized asphalt compositions and methods of preparation 失效
    聚合物改性,氧化沥青组合物及其制备方法

    公开(公告)号:US5336705A

    公开(公告)日:1994-08-09

    申请号:US41072

    申请日:1993-04-01

    摘要: Disclosed in this invention are novel road paving asphaltic compositions having improved viscoelastic properties and storage stability and unexpected phase compatibility. They contain neutralized mixtures of oxidized asphalt and an acid functionalized polymer, which polymer is selected from the group consisting of sulfonated EPDM, sulfonated styrene-butadiene, and acrylic acid terpolymers, in an amount that is sufficient to result in an asphaltic composition having a softening point greater about 55.degree. C. and a viscosity in the range from about 150 cPs to 2000 cPs or from about 3000 cPs to about 8000 cPs at 135.degree. C. and effective to allow the formation of one continuous phase or two interdispersed phases that do not segregate on standing at elevated temperatures. The basic neutralizing agent used in these compositions contain cations having a valence of from +1 to +3, preferably +2. The invention also relates to the products produced by the process and method of making the compositions. The compositions can be used as a binder in paving applications, particularly as a binder in dense graded and in open graded hot mix pavements.

    摘要翻译: 本发明公开了具有改进的粘弹性和储存稳定性以及出人意料的相位相容性的新型道路铺路沥青组合物。 它们含有氧化沥青和酸官能化聚合物的中和混合物,该聚合物选自磺化EPDM,磺化苯乙烯 - 丁二烯和丙烯酸三元共聚物,其量足以导致沥青组合物具有软化 更高约55℃,在135℃下的粘度范围为约150cPs至2000cPs或约3000cPs至约8000cPs,有效地允许形成一个连续相或两个分散相 在高温下静置时不分离。 在这些组合物中使用的碱性中和剂含有价数为+1至+3,优选+2的阳离子。 本发明还涉及通过制备组合物的方法和方法生产的产品。 该组合物可用作铺路应用中的粘合剂,特别是作为致密分级和开放分级热混合路面中的粘合剂。

    Integrated catalytic gasification process
    4.
    发明授权
    Integrated catalytic gasification process 失效
    综合催化气化过程

    公开(公告)号:US4094650A

    公开(公告)日:1978-06-13

    申请号:US740987

    申请日:1976-11-11

    IPC分类号: C07C1/00 C10J3/54 C10G13/30

    摘要: Methane and carbon dioxide are produced by reacting steam with a carbonaceous feed material at a reaction temperature between about 1000.degree. F. and about 1500.degree. F. and a reaction pressure in excess of about 100 psia in the presence of a carbon-alkali metal catalyst and equilibrium quantities of added hydrogen and carbon monoxide. The raw product gas withdrawn from the reaction zone is treated for removal of the carbon dioxide, product methane is recovered from the treated gas, and the remaining hydrogen and carbon monoxide can be recycled to supply the added hydrogen and carbon monoxide needed in the reaction zone.

    摘要翻译: 在碳 - 金属催化剂存在下,反应温度为约1000°F至约1500°F,反应压力超过约100psia,通过使蒸汽与碳质进料反应生成甲烷和二氧化碳。 和加入的氢气和一氧化碳的平衡量。 处理从反应区抽出的原始产物气体以除去二氧化碳,从处理过的气体中回收产物甲烷,剩余的氢气和一氧化碳可循环使用,以提供反应区所需的加氢和一氧化碳 。

    Process for the production of an intermediate Btu gas
    8.
    发明授权
    Process for the production of an intermediate Btu gas 失效
    生产中间体Btu气体的方法

    公开(公告)号:US4211538A

    公开(公告)日:1980-07-08

    申请号:US920045

    申请日:1978-06-28

    IPC分类号: C10J3/54

    摘要: An intermediate Btu gas is produced by reacting steam with a carbonaceous feed material in the presence of a carbon-alkali metal catalyst and substantially equilibrium quantities of added hydrogen and carbon monoxide at a temperature between about 1000.degree. F. and about 1500.degree. F. and a pressure in excess of about 100 psia to produce an effluent or raw product gas consisting essentially of equilibrium quantities, at reaction temperature and pressure, of methane, steam, carbon dioxide, carbon monoxide and hydrogen; recovering at least a portion of the effluent or raw product gas from the gasifier as an intermediate Btu product gas; contacting a carbon-containing material with steam in a steam reforming zone under conditions such that at least a portion of the carbon-containing material reacts with the steam to produce carbon monoxide and hydrogen; and passing the effluent from the reforming zone into the gasifier, thereby supplying the added hydrogen and carbon monoxide required in the gasifier.

    摘要翻译: 在碳 - 金属催化剂存在下,蒸汽与含碳原料反应生成中间体Btu气体,在大约1000°F至大约1500°F的温度下,基本上平衡量的加氢和一氧化碳, 压力超过约100psia,以产生在反应温度和压力下,甲烷,蒸汽,二氧化碳,一氧化碳和氢气基本上由平衡量组成的流出物或原始产品气体; 从作为中间体Btu产物气体的气化器回收至少一部分流出物或原始产物气体; 在含水材料的至少一部分与蒸汽反应产生一氧化碳和氢气的条件下,使含碳材料与蒸汽重整区中的蒸汽接触; 并将来自重整区的流出物送入气化器,由此供应气化器中所需的加氢和一氧化碳。