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11.Process of treating sludges obtained on refining petroleum oils with sulphuric acid 失效
Title translation: 用硫酸处理炼油石油所得污泥的工艺公开(公告)号:US1838030A
公开(公告)日:1931-12-22
申请号:US20531127
申请日:1927-07-13
Applicant: STANDARD OIL DEV CO
Inventor: MANN JR MATTHEW D , AUGUST HOLMES
IPC: C01B17/58
CPC classification number: C01B17/58
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公开(公告)号:US1707187A
公开(公告)日:1929-03-26
申请号:US6508525
申请日:1925-10-27
Applicant: STANDARD OIL DEV CO
Inventor: COBB ERNEST B , AUGUST HOLMES
IPC: C10G73/42
CPC classification number: C10G73/42
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