TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Process: The obtained support is mixed with a refractory metal oxide. Preferred Material: The zeolite is beta-zeolite, mordenite, faujasite, ferrierite or ZSM-5. Preferred Component: The support comprises a zeolite and a refractory metal oxide. The refractory metal oxide is alumina, bentonite or sepiolite. Preferred Composition: The zeolite/oxide ratio is 1-9. The zeolite has a silicon dioxide/aluminum oxide (SiO2)/Al2O3 ratio of 2-150.    TECHNOLOGY FOCUS - METALLURGY - Preferred Material: The metal or mixture of metals of group VIII is platinum (Pt) and/or palladium (Pd).    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Process: The obtained support is mixed with a refractory metal oxide. Preferred Material: The zeolite is beta-zeolite, mordenite, faujasite, ferrierite or ZSM-5. Preferred Component: The support comprises a zeolite and a refractory metal oxide. The refractory metal oxide is alumina, bentonite or sepiolite. Preferred Composition: The zeolite/oxide ratio is 1-9. The zeolite has a silicon dioxide/aluminum oxide (SiO2)/Al2O3 ratio of 2-150.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Material: The chelating agent is dimethylglyoxime, diphenylglyoxime, cyclohexanedione dioxime, hydroxylamine, cyclohexane diamine, n-hexanedione dioxime, phenanthrenquinone dioxime, N,N-dimethylformamide, urea, oxamide and other oximes, dioximes or N-containing organic compounds. Preferred Composition: The chelating agent/zeolite ratio is 0.1-0.5. Preferred Method: The isomerization is carried out at 150-400degreesC and a pressure of 1-100 bar. 4-9C Hydrocarbons are resubjected to isomerization. The catalyst is reduced in hydrogen atmosphere prior to the isomerization process. EXAMPLE - 100 g beta-Zeolite was stabilized at 580degreesC during 3 hours. After cooling, the beta-zeolite was introduced in 1000 ml flask containing 480 ml of distilled water with 14 g of dimethylglyoxime suspended. The flask was heated up smoothly to the reflux temperature and once the temperature was reached it was maintained during 14 hours. After this time the flask was cooled and then the suspension was filtered in a Buchner. The solid product was washed 3 times with 50 ml of hot water each time. The solid obtained by this procedure was dried and calcined at 580degreesC during 3 hours. The zeolite thus obtained was called zeo-DMG. 20 g Zeo-DMG was introduced in the flask of a rotavapor containing 102.5 ml of aqueous solution 0.005 M of tetrammineplatinum (II) nitrate to obtain an amount of metal deposited on the catalyst of 0.5 wt.% referred to the total weight of catalyst. After stirring for 60 minutes, the vacuum system was connected (15 torr) and the solvent was removed at 50degreesC. The catalyst thus obtained was dried during 24 hours. The catalyst was loaded in a reactor and was activated. The catalyst thus obtained was called Pt-zeo-DMG. The prepared catalysts were tested with a feed composed of 65 wt.% n-hexane (n-6C), 20 wt.% cyclohexane (c-6C) and 15 wt.% n-heptane (n-7C). The reactions were carried out in a fixed bed reactor at atmospheric pressure. The reactor outlet was connected to a gas chromatograph to analyze the reaction products. The first step was the activation of catalysts. Once the catalyst (1 g) was loaded in the reactor, it was established an oxygen flow of 20 ml/minute during 1 hour at 400degreesC. After this the catalyst was passivated at 400degreesC during 15 minutes with a nitrogen flow of 20 ml per minute. Then the catalyst was reduced in a hydrogen flow of 20 ml/minute at 400degreesC during 1 hour. The catalyst was then ready for the isomerization of paraffins.