INVESTIGATION ON THE PROCESS OF SYNTHESIS ORGANOCLAYS FROM BENTONITE (INDIA) WITH ETHYLTRIPHENYLPHOSPHONIUM BROMIDE AND THE INITIAL RESEARCH INTO STRUCTURE

  • Phạm Thị Hà Thanh
  • Nguyễn Thị Thúy
  • Lê Văn Thuận
  • Nguyễn Mạnh Cường

Abstract

   Organoclay is synthesized from bentonite (India) and butyltriphenylphosphonium bromide (BTPB) by wet method. The influence of organoclay making process on the distance of the organoclay layers (d001) and the level of intrusion BTPB into bentonite were studied. By X-ray diffraction method, the direct method calcined sample, we determined suitable conditions for preparing organoclays from bentonite (India) and BTPB: reaction temperature is 50oC, the volume ratio BTPB/bentonite is 0.5, pH reaction is 9, the reaction time is 4h. The product is dried for 48 hours at 80oC. Organoclay synthesis is studied by the methods as XRD, TGA, SEM. The d001 and organic content in the respective product is 18,912Å, 15,39%. SEM images showed that the organoclay synthesis has layer structure and high porosity.

Keywords: Synthesis, bentonite, butyltriphenylphosphonium bromide, organoclays, structure. 

điểm /   đánh giá
Published
2020-02-15
Section
ARTICLES