发明授权
- 专利标题： Method for reducing sulfur emissions in processing air-blown asphalt
- 专利标题（中）： 减少加工吹风沥青中硫排放的方法
-
申请号： US599773申请日： 1996-02-12
-
公开(公告)号： US5611910A公开(公告)日： 1997-03-18
- 发明人: Jorge A. Marzari , Michael R. Franzen , Jeffrey W. Smith
- 申请人： Jorge A. Marzari , Michael R. Franzen , Jeffrey W. Smith
- 申请人地址： IL Summit
- 专利权人： Owens-Corning Fiberglas Technology, Inc.
- 当前专利权人： Owens-Corning Fiberglas Technology, Inc.
- 当前专利权人地址： IL Summit
- 主分类号： B01D53/50
- IPC分类号： B01D53/50 ; C10C3/02 ; C10C3/04 ; C10C1/20
摘要：
In a method for reducing emissions from an asphalt blowing process, an emission reducing additive is added to the asphalt prior to blowing, or early in the blowing process. The emission reducing additive is added in an amount sufficient to reduce the SO.sub.x emissions from the blowing process by at least 25 percent by weight when compared with the same process without the emission reducing additive. The emission reducing additive includes at least two compounds selected from metal hydroxides, metal oxides, metal carbonates and metal bicarbonates, where the metal is selected from sodium, potassium, calcium, magnesium, zinc, copper and aluminum.
公开/授权文献
- US4578017A Method for stopping a multi-stage hydraulic machine 公开/授权日：1986-03-25
信息查询
IPC分类:
