SOLVENT EXTRACTION FOR PREPARING A SALT OF A SULFURIZED ALKYL-SUBSTITUTED HYDROXYAROMATIC COMPOSITION
摘要
Disclosed is a process for preparing a salt of a sulfurized alkyl-substituted hydroxyaromatic composition having a reduced content of unsulfurized alkyl-substituted hydroxyaromatic compound and its unsulfurized metal salt. The process involves at least the steps of: (a) providing a composition comprising (i) a salt of a sulfurized alkyl-substituted hydroxyaromatic compound; (ii) an unsulfurized alkyl-substituted hydroxyaromatic compound and (iii) an unsulfurized metal salt of the alkyl-substituted hydroxyaromatic compound; wherein the alkyl-substituted hydroxyaromatic compound is derived from alkylation of a hydroxyaromatic compound with one or more olefins comprising C9 to C18 oligomers of monomers selected from propylene, butylene or mixtures thereof; and (b) extracting the unsulfurized alkyl-substituted hydroxyaromatic compound and its unsulfurized metal salt from the composition of step (a) with one or more solvents capable of solubilizing the unsulfurized alkyl-substituted hydroxyaromatic compound and its unsulfurized metal salt and under extraction conditions sufficient to provide a salt of a sulfurized alkyl-substituted hydroxyaromatic composition having a reduced content of unsulfurized alkyl-substituted hydroxyaromatic compound and its unsulfurized metal salt.
申请公布号
SG11201502789S(A)
申请公布日期
2015.05.28
申请号
SG11201502789S
申请日期
2013.11.15
申请人
CHEVRON ORONITE COMPANY LLC
发明人
MAHIEUX, CEDRICK;DUTTA, RICHARD PRAN;CAMPBELL, CURTIS BAY;YIP, BENJAMIN DAVID