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
    • 1. 发明申请
    • MEMBRANE AND PROCESS FOR RECOVERY OF ACID
    • 醋酸回收膜和方法
    • WO2007103314A3
    • 2007-11-01
    • PCT/US2007005599
    • 2007-03-06
    • EXXONMOBIL RES & ENG COSTRAUSS RAMON AMELLI TOMAS RHOLLENBACH JOHN HMINHAS BHUPENDER S
    • STRAUSS RAMON AMELLI TOMAS RHOLLENBACH JOHN HMINHAS BHUPENDER S
    • B01D61/02B01D61/36B01D71/36B01D71/38C01B17/92
    • B01D71/28B01D61/025B01D61/027B01D61/362B01D61/58B01D71/38B01D2317/022B01D2325/30C01B17/88
    • A crosslinked polymeric polyvinyl sulfate membrane or crosslinked copolymer polyvinyl sulfate and polyvinyl alcohol membrane, or Nafion® or polytetrafluoroethylene suitable for use in an acid environment, and its use for recovering or reconstituting acid from a feed mixture comprising predominantly acid and water, the method comprising: processing said mixture using a first polymeric membrane such as Nafion® or polytetrafluoroethylene ("PTFE") for example, to form a first retentate containing a substantially greater concentration of acid than said feed mixture and a first permeate containing a substantially greater concentration of water than said mixture, said first polymeric membrane selectively excluding permeance of the acid over the water found in the mixture, and recovering the first retentate; said first retentate can be processed further using a second water reduction membrane system mean to form a retentate stream containing a substantially greater concentration of acid than the first retentate and a second stream containing a substantially greater concentration of water than said first retentate; and recovering the acid retentate.
    • 交联聚合物聚乙烯硫酸盐膜或交联共聚物聚乙烯硫酸盐和聚乙烯醇膜,或适用于酸性环境的Nafion或聚四氟乙烯及其用于从主要含有酸和水的进料混合物中回收或重构酸的用途,所述方法包括 :使用例如Nafion或聚四氟乙烯(“PTFE”)的第一聚合物膜来处理所述混合物,以形成含有比所述进料混合物大得多的酸浓度的第一渗余物和含有基本上更大浓度的水的第一渗透物 所述第一聚合物膜选择性地排除所述混合物中存在的水的渗透性,并回收所述第一渗余物; 可以使用第二减水膜系统进一步处理所述第一渗余物,所述第二减水膜系统形成含有比所述第一滞留物大得多的酸浓度的滞留物流,以及含有比所述第一渗余物大得多的水的第二流; 并回收酸滞留物。