摘要:
ORGANIC COMPOSITIONS ARTE PROVIDED WHICH ARE STABILIZED AGANIST OXIDATION BY ADDING THERETO A COMBINATION OF AN AMINE AND A METAL FROM SERIES 3 OF THE PERIODIC TABLE HAVING AN ATOMIC NUMBER OF AT LEAST 27, OR AN ACID SALT OF SUCH METAL. THE AMINES ARE THE SECONDARY AND TERTIARY AROMATIC AMINES, THE BIS(DIAROMATIC AMINES) AND THE ARYLENE DIAMINES.
摘要:
A process is provided for improving the stability of a hydrocarbon mineral oil, particularly a hydrocracked stock, normally susceptible to thermal oxidation and the effects of light rays and for decreasing the tendency of the oil to form sludge material. The process involves reacting the hydrocarbon mineral oil before or after conventional treatment, such as dewaxing operations, with a stabilizing agent, such as an olefin, alcohol, ester or alkyl halide in the presence of a heterogeneous acidic catalyst which includes acid resins, clays and aluminosilicates, and which has a controlled alkylation activity. The final oil product has improved light stability over a conventionally treated oil.
摘要:
Carbon-carbon coupled dimers of N-arylnaphthylamines are prepared by thermally decomposing an N-nitroso-N-arylnaphthylamine. The aryl portion of such material may be phenyl, naphthyl or an alkyl-, alkoxy- or halogen-substituted member of these. The compounds thus produced are useful as antioxidants for a variety of organic materials. These include polyurethane and polyolefin polymers as well as lubricating oils.
摘要:
DIHYDRIC PHENOIS CAN BE USED DIRECTLY IN THE ULLMANN ETHER SYNTHESIS BY USING A COPPER SALT CATALYST AND AN AMINE SOLVENT THAT DISSOLVES THE CATALYST BY FORMING COORDINATE COVALENT BONDS WITH COPPER IONS.