Process for producing titanium-containing silicon oxide catalyst, the catalyst, and process for producing oxirane compound with the catalyst

   
   

A process for producing a titanium-containing silicon oxide catalyst having a silicon-carbon-silicon bond, silicon-oxygen-silicon bond and silicon-oxygen-titanium bond which includes causing a silicon compound of the following formula (1) and a titanium alkoxide compound to gel in a water and/or alcohol solvent and removing the solvent in the resulted gel by extraction with a supercritical fluid ##STR1## (R.sup.1 to R.sup.7 each independently represent a hydrocarbon group having 1 to 20 carbon atoms.).

Процесс для производить титан-soderja катализатор окиси кремния имея скрепление кремни-углерод-kremni4, скрепление кремни-кислород-kremni4 и скрепление кремни-кислород-titana которое вклюает причинять смесь кремния following формулы (1) и titanium смесь алкоксида gel в растворителе воды and/or спирта и извлекать растворитель в приведенном к геле извлечением с закризисным жидким ## ## STR1 (R.sup.1 к R.sup.7 каждым независимо представляет группу углерода имея от 1 до 20 атомов углерода).

 
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