Synthesis of Multi-butylnaphthalene Base Oils Catalyzed by Trifluoromethanesulfonic Acid and Its Lubricating Properties

Synthesis of Multi-butylnaphthalene Base Oils Catalyzed by Trifluoromethanesulfonic Acid and Its Lubricating Properties

Blog Article

Alkylnaphthalene as base oils are widely applied in the production of high-performance lubricating oils.Here, we report the synthesis of multi-butylnaphthalenes by alkylation of naphthalene and n-butene with trifluoromethanesulfonic acid as catalyst.Trifluoromethanesulfonic acid exhibited excellent catalytic performance with naphthalene conversion, as high as 98.

5%, and the Book Rack multi-butylnaphthalenes selectivity of 98.8% under optimum conditions.To investigate the effects of the side-chain numbers on naphthalene on the lubrication performance, two kinds of alkylnaphthalenes were obtained by controlling catalyst dosage, denoted as MBN-1 (90.

3% mono/di-butylnaphthalenes) and MBN-2 (98.2% tri/tetra/penta/hexa-butylnaphthalenes), respectively.The primary physiochemical properties of the synthetic Colloidal Minerals oils were tested, and their tribological performance was evaluated.

MBN-2, with more side chains on naphthalene, displayed more effective friction reduction and anti-wear properties than MBN-1 and the commercial alkyl naphthalene base oil AN5.