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公开(公告)号：EP0153562B1
公开(公告)日：1986-11-12
申请号：EP85100291.5
申请日：1985-01-14
申请人： BAYER AG
IPC分类号： C07C143/24 , C07C139/00
CPC分类号： C07C309/00
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22.发明公开Process for the production of polyalkylaromatic polysulfonic acids and recovery by heavy phase separation 失效一种用于生产的多烷基多磺酸和重相的分离他们的提取过程。
公开(公告)号：EP0168778A2
公开(公告)日：1986-01-22
申请号：EP85108651.2
申请日：1985-07-11
IPC分类号： C07C143/24 , C07C143/34 , C07C139/14
CPC分类号： C07C303/06 , C07C309/37
摘要： This invention relates to novel processes for the production of enhanced yields of polyalkylaromatic polysulfonic acids. More particularly, the invention pertains to processes for suffo- nating polyalkylaromatic compounds employing sulfuric acid treatment and recovering the polyalkylaromatic polysulfonic acid produced thereby after formation of a three phase system by the addition of controlled amounts of water, causing the polysulfonic acid to accumulate in the bottom layer, with which it is readily separated.
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23.发明授权Stabilized petroleum sulfonate products and their use in subterranean oil recovery 失效稳定石油磺酸盐产品及其在亚油回收中的应用
公开(公告)号：EP0012759B1
公开(公告)日：1982-05-05
申请号：EP79900314.0
申请日：1979-03-02
IPC分类号： C07C143/02 , C07C143/16 , C07C143/24 , C09K7/00
CPC分类号： C07C309/62 , C09K8/584
摘要： Petroleum sulfonates yielding improved results in enhanced oil recover processes are comprised of a reaction product obtained from a mixture of a major proportion of a petroleum oil feed stock, such as a crude or a portion thereof, and a minor proportion of an additive, such as an oxygenated hydrocarbon, i.e., an oxo-alcohol or the like, reacted with SO3 under sulfonation conditions, mixed with about 0.50 to 20% (by reaction mixture weight) of water at the temperature in the range of about 50 to 150 C. for a relatively brief period of time and then neutralizing the resultant material with a base, such as NaOH. The neutralized petroleum sulfonated material thus obtained, which may or may not be extracted to remove unsulfonated organic material or salts, is then formulated into a slug for injection into an oil field for enhanced oil recovery.
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