会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 8. 发明授权
    • Alkali metal catalyst recovery system
    • 碱金属催化剂回收系统
    • US4057512A
    • 1977-11-08
    • US618292
    • 1975-09-29
    • Charles J. VadovicRobert D. WesselhoftNicholas C. Nahas
    • Charles J. VadovicRobert D. WesselhoftNicholas C. Nahas
    • B01J23/92C01B33/12C01D5/02C01F7/34C01F7/36C05C5/00C10J3/54C01D13/00
    • C10J3/54B01J23/92C01B33/12C01D5/02C01F7/34C01F7/36C05C5/00C10J3/482C10J2300/093C10J2300/0973C10J2300/0986C10J2300/1853Y02P20/52Y02P20/584
    • In a coal gasification operation or similar process carried out in the presence of an alkali metal-containing catalyst wherein spent solids containing ash and alkali metal catalyst residues are produced, alkali metal constituents are recovered from the spent solids by first removing magnetic constituents from the solids, contacting the solid particles from which magnetic constituents have been separated with an acid solution to extract alkali metal constituents from the solids and produce a spent acid solution enriched in alkali metal salts, raising the pH of the enriched solution sufficiently to precipitate aluminum from the solution as aluminum hydroxide, heating the remaining solution to precipitate silicon compounds, and recovering an enriched alkali metal solution from which aluminum and silicon compounds have been removed. This process permits the effective recovery of alkali metal catalyst constituents, eliminates iron compounds and other inactive constituents which may otherwise tend to build up in the catalyst system, and makes possible the recovery of aluminum as a valuable by-product of the process.
    • 在生产含有灰分和碱金属催化剂残余物的废固体的碱金属的催化剂存在下进行的煤气化操作或类似方法中,通过首先从固体中除去磁性成分从废固体中回收碱金属成分 使已经与磁性组分分离的固体颗粒与酸溶液接触以从固体中提取碱金属成分,并产生富含碱金属盐的废酸溶液,从而使富含溶液的pH充分地从溶液中沉淀出铝 作为氢氧化铝,加热剩余的溶液以沉淀硅化合物,并回收已除去铝和硅化合物的富集的碱金属溶液。 该方法允许碱金属催化剂组分的有效回收,消除铁化合物和其它可能倾向于在催化剂体系中累积的其它无活性组分,并且使作为该方法有价值的副产物的铝的回收成为可能。
    • 10. 发明授权
    • Pavement Binder
    • 路面粘合剂
    • US5549744A
    • 1996-08-27
    • US525898
    • 1995-09-08
    • Olga PuzicLarry J. EversKenneth E. WilliamsonMartin L. GorbatyNicholas C. Nahas
    • Olga PuzicLarry J. EversKenneth E. WilliamsonMartin L. GorbatyNicholas C. Nahas
    • C08L95/00E01C7/26C09D195/00
    • E01C7/267C08L95/00E01C7/265
    • 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.
    • 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。