SOLVENT AND ACID STABLE MEMBRANES, METHODS OF MANUFACTURE THEREOF AND METHODS OF USE THEREOF INTER ALIA FOR SEPARATING METAL IONS FROM LIQUID PROCESS STREAMS
Cu(II)/Triazine-Based Dendrimer as an Efficacious Recoverable Nano-catalyst for the Preparation of 1-Substituted-1<i>H</i>-1,2,3,4-Tetrazoles under Solventless Conditions
作者:Samaneh Javdan、Farid Moeinpour、Fatemeh S. Mohseni-Shahri
DOI:10.1080/00304948.2022.2057143
日期:2022.7.4
Published in Organic Preparations and Procedures International: The New Journal for Organic Synthesis (Vol. 54, No. 4, 2022)
Sixteen different N,N'-bis[(dialkylphosphono)-1,3,5-triazin-2-yl]diamines 2 are obtained in high to moderate yields by Arbusov reaction of bis(4,6-dichloro-1,3,5-triazin-2-yl)diamines I and trialkylphosphites. Unexpectedly, at room temperature only two of four phosphorus atoms are magnetic equivalent as it is demonstrated by C-13 and P-31 NMR investigations.
SOLVENT AND ACID STABLE MEMBRANES, METHODS OF MANUFACTURE THEREOF AND METHODS OF USE THEREOF INTER ALIA FOR SEPARATING METAL IONS FROM LIQUID PROCESS STREAMS
申请人:AMS TECHNOLOGIES INT. (2012) LTD
公开号:US20160051944A1
公开(公告)日:2016-02-25
Solvent and acid stable ultrafiltration and nanofiltration membranes including a non-cross-linked base polymer having reactive pendant moieties, the base polymer being modified by forming a cross-linked skin onto a surface thereof, the skin being formed by a cross-linking reaction of reactive pendant moieties on the surface with an oligomer or another polymer as well as methods of manufacture and use thereof, including, inter alia separating metal ions from liquid process streams.
derivatives in the attendance of 0.045 mol% of nano-catalyst and 0.3 MPa of CO2 pressure at 50 °C under solvent-less situations in outstanding yields. The Cu(II)/TD catalyst was able to be reprocessed and recovered many times without considerable failure of its performance. The findings strongly confirm that Cu(II)/TD can be considered as an environmentally friendly and retrievable catalyst for fixation of CO2
在这项研究中,扩展了一种新的、有效的无溶剂工艺,以使用 Cu(II)/羟基封端的三嗪基树枝状大分子 (Cu(II)/TD) 作为高效的异质纳米材料,通过化学固定 CO 2来合成环状碳酸酯衍生物。 -催化剂。使用 TEM、TGA、FT-IR、SEM、EDS 和 ICP 技术对 Cu(II)/TD 纳米催化剂进行了表征。这种新型纳米催化剂的应用提供了在0.045 mol%的纳米催化剂和0.3 MPa的CO 2条件下制备各种环状碳酸酯衍生物。在 50 °C 的压力下,在无溶剂的情况下获得出色的收率。Cu(II)/TD 催化剂能够多次再加工和回收,而不会显着降低其性能。研究结果有力地证实,Cu(II)/TD 可以被认为是一种环境友好且可回收的催化剂,用于将 CO 2固定到有价值的产品中。 图形概要