The mono-metallic and bi-metallic catalysts have been prepared by impregnating with solutions containing a compound of H2PtCl6,WO3 and 1ml HCl (0.1 mol). It should be noted that the catalysts’ activity and selectivity have been determined under these conditions : 450-5000C ,and 15-25atm by H2. For converting n-heptane , the molar ratio H2/C7H16 is 5 , and LHSV is 1.5ml/h. It has been proved tha...

Short-chain fatty acids (SCFAs) and medium-chain acid (MCFAs) are valuable raw materials in wide range of chemical medical applications. They can be converted to other derivatives by known reactions. Unfortunately, both SCFAs MCFAs not as abundant nature long-chain (LCFAs). In this work, the oxidative cleavage oleic acid, which is one most unsaturated LCFAs nature, was studied. The oxidation in...

Procedures for the analysis of phosphorus in geological material normally aims for the determination of the total amount of P expressed as orthophosphate [Formula: see text] or the differentiation between inorganic and organic P. This is probably due to analytical difficulties but also to the prevalent opinion that the chemistry of phosphorus in geological environments is almost entirely restri...