发明名称 |
Process for preparing a salt of a sulfurized alkyl-substituted hydroxyaromatic composition |
摘要 |
Disclosed herein 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 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; (b) protonating the unsulfurized metal salt of the alkyl-substituted hydroxyaromatic compound with an effective amount of an acidic compound capable of protonating the unsulfurized metal salt of the alkyl-substituted hydroxyaromatic compound; and (c) removing the unsulfurized alkyl-substituted hydroxyaromatic compound and the protonated unsulfurized metal salt of the alkyl-substituted hydroxyaromatic compound from the composition. |
申请公布号 |
US8772209(B2) |
申请公布日期 |
2014.07.08 |
申请号 |
US201213682172 |
申请日期 |
2012.11.20 |
申请人 |
Chevron Oronite Company LLS |
发明人 |
Mahieux Cedrick;Dutta Richard;Campbell Curtis |
分类号 |
C10M159/22 |
主分类号 |
C10M159/22 |
代理机构 |
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代理人 |
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主权项 |
1. 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 comprising 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 C18oligomers of monomers selected from propylene, butylene or mixtures thereof; (b) protonating the unsulfurized metal salt of the alkyl-substituted hydroxyaromatic compound with an effective amount of an acidic compound capable of protonating the unsulfurized metal salt of the alkyl-substituted hydroxyaromatic compound; and (c) removing the unsulfurized alkyl-substituted hydroxyaromatic compound and the protonated unsulfurized metal salt of the alkyl-substituted hydroxyaromatic compound from the composition wherein the salt of the sulfurized alkyl-substituted hydroxyaromatic composition obtained in step (c) contains less than or equal to 2.45 wt. % of the unsulfurized alkyl-substituted hydroxyaromatic compound and its metal salt. |
地址 |
San Ramon CA US |