-
1.发明授权Process for the production of free-flowing, stable foam inhibitor concentrates by compacting granulation 失效通过压实造粒生产自由流动，稳定的抑泡剂浓缩物的方法
公开(公告)号：US4832866A
公开(公告)日：1989-05-23
申请号：US103790
申请日：1987-10-01
IPC分类号： B01D19/04
CPC分类号： C11D3/0026 , B01D19/04 , B01D19/0404 , C11D3/046 , C11D3/18 , C11D3/373 , C11D7/10 , C11D7/24
摘要： Free-flowing, particulate foam inhibitor concentrates, which suffer no loss of activity in admixture with surfactants or strong alkalis, are prepared by compacting a mixture of from 1 to 20% by weight of the foam inhibitor with 80 to 99% by weight of a water-soluble salt or salt mixture optionally containing blending aids and having a pH value in the form of a 1% aqueous solution of from 6 to 9.5 under elevated pressure and subsequently size-reducing the compactate to an average particle size of from 0.1 to 2 mm. The presssure applied to the mixture should not significantly exceed the pressure limit at which no further compaction occurs. In addition, the particle porosity, as measured by mercury porosimetry, should be below 10%. The foam inhibitors used are preferably paraffin hydrocarbons, organopolysiloxanes and mixtures thereof with finely-divided hydrophobic solids, particularly finely-divided silica.
摘要翻译： 通过将1至20重量％的泡沫抑制剂的混合物与80至99重量％的泡沫抑制剂混合来制备自由流动的颗粒状泡沫抑制剂浓缩物，其不与表面活性剂或强碱混合而不损失活性， 水溶性盐或盐混合物，任选地含有共混助剂，并且在升高的压力下具有6至9.5的1％水溶液形式的pH值，随后将压实物的尺寸减小到平均粒度为0.1至2 mm。 施加到混合物上的压力不应显着超过不再进一步压实的压力极限。 此外，通过水银孔率法测量的颗粒孔隙率应低于10％。 所使用的泡沫抑制剂优选为石蜡烃，有机聚硅氧烷及其与细分散的疏水固体，特别是细碎二氧化硅的混合物。
-
公开(公告)号：US4801401A
公开(公告)日：1989-01-31
申请号：US22470
申请日：1987-03-06
申请人： Paul Schulz , Martin Witthaus , Juergen Waldmann
发明人： Paul Schulz , Martin Witthaus , Juergen Waldmann
CPC分类号： B01D19/04 , B01D19/0404
摘要： To prepare a highly effective foam inhibitor mixture consisting of paraffin hydrocarbons, hydrophobicized silica and liquid paraffin hydrocarbons, a finely divided silica is dispersed in paraffin hydrocarbons melting above 40.degree. C. and reacted with alkyl trichlorosilanes wherein the alkyl groups contain from 4 to 22 carbon atoms.
摘要翻译： 为了制备由石蜡烃，疏水化二氧化硅和液体石蜡烃组成的高效泡沫抑制剂混合物，细碎的二氧化硅分散在熔点高于40℃的链烷烃中，与烷基三氯硅烷反应，其中烷基含有4-22个碳 原子
-
搜索结果
2 条记录 (耗时 0.009 秒)