Synthesis of hectorites and saponites with microwaves and their application in catalysis and composites

Identificador:  TDX:929

Handle: https://hdl.handle.net/20.500.11797/TDX929

Autors:  Vicente Valverde, Isabel

Resum:
Smectites like hectorite or saponite, are phyllosilicates. They can be applied for many purposes (catalysis, nanocomposites, adsorbents) but a reproducible, pure material is necessary. Classical methods of synthesis involve long synthesis times at high temperatures. The use of microwaves can be an interesting alternative. The scope of this thesis is to study the synthesis of hectorites and saponites with microwaves and their application as supports of Ni catalysts in the hydrogenation of styrene oxide to obtain 2-phenylethanol (main component of rose oil) and in the preparation of composites with polyurethane. We obtained reproducible hectorites and saponites. When used as supports of Ni catalysts we obtained total conversion and selectivity to 2-phenyethanol. When obtained clays were used in the preparation of polyurethane composites, their properties were comparables to those of the bibliography