首页>
外国专利>
Acrolein and formaldehyde polycondensation products as hydrogen and iron sulphide scavengers in aqueous media
Acrolein and formaldehyde polycondensation products as hydrogen and iron sulphide scavengers in aqueous media
展开▼
机译:丙烯醛和甲醛缩聚产物作为水性介质中的氢气和硫化铁清除剂
展开▼
页面导航
摘要
著录项
相似文献
摘要
There are employed water soluble low molecular weight polycondensation products produced by the condensation of acrolein and formaldehyde in a molar ratio between 1:1 and 1:10 in aqueous or aqueous-organic medium in the presence of a basic catalyst for the elimination of hydrogen sulfide and iron sulfide present in aqueous systems. The condensation reaction can also be carried out in the additional presence of water soluble monohydric or polyhydric alcohols and/or acid amides.
展开▼