公开(公告)号：US5853617A

公开(公告)日：1998-12-29

申请号：US856439

申请日：1997-05-14

申请人： Christopher T. Gallagher ,  Patrick J. Breen ,  Brian Price ,  Alan F. Clemmit

发明人： Christopher T. Gallagher ,  Patrick J. Breen ,  Brian Price ,  Alan F. Clemmit

IPC分类号： B01D19/04 ,  C09K3/00

CPC分类号： C09K3/00 ,  B01D19/0404 ,  B01D19/0409

摘要： It has been surprisingly discovered that the use of two different conventional defoamers give surprisingly and synergistic results when used together to suppress oil-based foams. The use of both a fluorosilicone together with a non-fluorinated siloxane give both reduced liquid carry over into a gas stream and reduced gas carry under into a liquid stream in a separation process. The fluorosilicone and non-fluorinated siloxane may be added together to a system producing an oil-based foam, or separately in any sequence. On some oil-based foams, the inventive blend achieves a level of performance unattainable by conventional defoamers at any dose. In most cases, better overall performance is obtained with the inventive foam suppressing blend at lower doses and less cost than with conventional defoamers used single.

摘要翻译： 令人惊讶地发现，当一起使用两种不同的常规消泡剂来抑制油基泡沫时，会产生惊人的和协同的结果。 将氟硅氧烷与非氟化硅氧烷一起使用，在分离过程中将减少的液体携带到气流中并将还原气体输送到液体流中。 氟硅氧烷和非氟化硅氧烷可以一起添加到产生油基泡沫的体系中，或以任何顺序分开加入。 在一些油基泡沫上，本发明的共混物达到了任何剂量的常规消泡剂不可能达到的性能水平。 在大多数情况下，使用本发明的泡沫抑制共混物以较低剂量获得更好的整体性能并且比使用单一常规消泡剂的成本更低。