NOVELTY - A dual phase catalyst system for the production of mixed alcohols from mixed olefins, comprises: water soluble acid catalyst that is soluble in water and a solid acid catalyst that is insoluble in water. The dual phase catalyst system hydrates the mixed olefins without requiring separation of the mixed olefins prior to contacting with the dual phase catalyst system; and converts the mixed olefins into the mixed alcohols at a conversion rate that is greater than either the conversion rate of the water soluble acid catalyst or the conversion rate of the solid acid catalyst.    USE - As dual phase catalyst system for the production of mixed alcohols from mixed olefins (claimed).    ADVANTAGE - The dual phase catalyst system is capable of hydrating the mixed olefins without requiring separation of the mixed olefins prior to contacting with the dual phase catalyst system. The dual phase catalyst system is capable of converting the mixed olefins into the mixed alcohols at a conversion rate that is greater than either the conversion rate of the water soluble acid catalyst or the conversion rate of the solid acid catalyst. The conversion rate for the dual phase catalyst system is greater than or equal to 10%. The dual phase catalyst system is able to hydrate mixed olefin with higher conversion rates than commonly used commercial catalysts.    DETAILED DESCRIPTION - A dual phase catalyst system for the production of mixed alcohols from mixed olefins, comprises: a water soluble acid catalyst that is soluble in water and a solid acid catalyst that is insoluble in water. The dual phase catalyst system is capable of hydrating the mixed olefins without requiring separation of the mixed olefins prior to contacting with the dual phase catalyst system. The dual phase catalyst system is capable of converting the mixed olefins into the mixed alcohols at a conversion rate that is greater than either the conversion rate of the water soluble acid catalyst or the conversion rate of the solid acid catalyst.