초록 ▼

The quality of catalytically hydrodewaxed oils is improved by hydroisomerizing the oil to remove residual waxy components which contribute to poor performance in the Overnight Cloud Point test. Conversion during the hydroisomerization is minimized so as to obtain a product of high clarity in good yi

The quality of catalytically hydrodewaxed oils is improved by hydroisomerizing the oil to remove residual waxy components which contribute to poor performance in the Overnight Cloud Point test. Conversion during the hydroisomerization is minimized so as to obtain a product of high clarity in good yield.

대표청구항 ▼

A process for improving the overnight cloud point of a catalytically dewaxed lubricating oil stock containing petrolatum wax which is relatively insoluble comprising contacting said oil with a catalyst having both an acidic function and a hydrogenation-dehydrogenation function in the presence of hyd

A process for improving the overnight cloud point of a catalytically dewaxed lubricating oil stock containing petrolatum wax which is relatively insoluble comprising contacting said oil with a catalyst having both an acidic function and a hydrogenation-dehydrogenation function in the presence of hydrogen at hydroisomerization conditions to produce a product containing branched chain isoparaffins which are more soluble at low temperatures, and wherein the conversion of said oil to lower boiling components is less than about 10 weight percent.