초록 ▼

This invention concerns a time-effective method of manufacture for a sodium ferrierite precursor of a hydrogen ferrierite catalytic composition of matter by crystallizing an aqueous admixture of sodium hydroxide, an aluminum compound, a silicon compound and a nitrogen-containing compound, which mixt

This invention concerns a time-effective method of manufacture for a sodium ferrierite precursor of a hydrogen ferrierite catalytic composition of matter by crystallizing an aqueous admixture of sodium hydroxide, an aluminum compound, a silicon compound and a nitrogen-containing compound, which mixture possesses 1.60 to 3.40 moles of sodium oxide and 0.70 to 1.60 moles of aluminum oxide per 25 moles of silicon oxide. The ultimate use of the resultant catalyst is for excising wax from a lubricating oil (preferably a light lubricating oil) with or without the presence of metals of Group VIII and Group VIB on the catalyst.

대표청구항 ▼

A time effective method of manufacture of sodium ferrierite which comprises crystallizing an aqueous mixture at hydrothermal crystallizing conditions of from about 100°to about 400°C. over a period of time greater than 10 hours and less than 20 hours to form a crystalline sodium ferrierite, said aqu

A time effective method of manufacture of sodium ferrierite which comprises crystallizing an aqueous mixture at hydrothermal crystallizing conditions of from about 100°to about 400°C. over a period of time greater than 10 hours and less than 20 hours to form a crystalline sodium ferrierite, said aqueous mixture comprising a sodium compound, one or more aluminum compounds, a silicon compound and one nitrogen compound selected from the group consisting of piperidine, piperazine, pyridine, 4-picoline-N-oxide and 4-picoline, wherein the mole ratios of both the sodium compound and aluminum compound, in relation to the silicon compound, calculated on the basis of the oxide forms of said sodium compound, aluminum compound and silicon compound, are equal to the presence of 1.6 to 3.4 moles of sodium oxide per 25 moles of said silicon oxide and 0.7 to 1.6 moles of said aluminum oxide per 25 moles of said silicon oxide, and wherein water is present in a molar ratio of 5-500 moles of water per mole of said silicon oxide and said nitrogen compound is present in a molar ratio of 0.05 to 1.0 moles of said nitrogen compound per mole of said silicon oxide and where the mole ratio of sodium oxide to aluminum oxide is greater than 1, and calcining said crystalline sodium ferrierite.