发明授权
US07396802B2 Corrosion inhibitor/metal passivator additive composition from waste refinery streams
失效
来自废物炼油厂的腐蚀抑制剂/金属钝化剂添加剂组合物
- 专利标题： Corrosion inhibitor/metal passivator additive composition from waste refinery streams
- 专利标题（中）： 来自废物炼油厂的腐蚀抑制剂/金属钝化剂添加剂组合物
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申请号： US10495267申请日： 2002-07-25
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公开(公告)号： US07396802B2公开(公告)日： 2008-07-08
- 发明人: Pankaj Kumar Mondal , Khem Chand Dohhen , Rakesh Sarin , Deepak Kumar Tuli , Ram Prakash Verma , Akhilesh Kumar Bhatnagar
- 申请人： Pankaj Kumar Mondal , Khem Chand Dohhen , Rakesh Sarin , Deepak Kumar Tuli , Ram Prakash Verma , Akhilesh Kumar Bhatnagar
- 申请人地址： IN Bandra (East) Numbai, Manharashtra
- 专利权人： Indian Oil Corporation Limited
- 当前专利权人： Indian Oil Corporation Limited
- 当前专利权人地址： IN Bandra (East) Numbai, Manharashtra
- 代理机构： Allen, Dyer, Doppelt, Milbrath & Gilchrist, P.A.
- 国际申请： PCT/IN02/00156 WO 20020725
- 国际公布： WO2004/011578 WO 20040205
- 主分类号： C10M135/36
- IPC分类号： C10M135/36 ; C23F11/00
摘要：
The reaction of the disulphided oil, as obtained from the caustic wash of liquefied petroleum gas, with 2,3,8,9,13,14-hexathia-5,6,11,12 -tetraazatricyclo [8.2.1.14,7]tetradeca-4,6,10,12-tetraene was carried out in one pot and one step to yield a corrosion inhibiting composition comprising predominantly of 2,5-bis(methyldithio)-1,3,4-thiadiazole, 2-methylthio-5-ethylthio-1,3,4-thiadiazole and 2,5-bis(ethyldithio)-1,3,4-thiadiazole, for application in fuels, lubes and greases. (I)
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