The flowsheet , optimum ingredient and main technique conditions of preparing ultra strong dispersant from polymer compound complex were expounded .
本文阐述了由高分子化合物制备超强分散剂的工艺流程、最佳配方及主要的工艺条件。
The beaches remain polluted with toxic oil and dispersant even as local politicians and government officials insist everything is fine and the oil miraculously gone .
海滩仍然被有毒油和分散剂污染,甚至当本地的政治家和政府官员坚持,一切都很好和油污奇已迹般地消失。
Some witnesses expressed concern over the use of dispersant chemicals .
一些请愿者还表达了他们对于化油剂的担忧。
If spraying at source really is as good or better than surface spraying , and requires a great deal less dispersant , it will be a boon .
The experimental results have shown that the mean diameter of polystyrene microspheres increases with increasing the concentration of initiator , whereas decreases with increasing the concentration of the dispersant .
聚苯乙烯微粒之平均粒径随起始剂浓度增大而增大,随分散剂浓度增加而减小。
In view of the current problems of dispersant use , it is suggested to put several affecting factors into consideration , and assess the environmental risk .
针对分散剂使用中存在的问题,指出施加分散剂时应综合考虑多种因素,并做环境风险评价。
In this paper a new technology for the preparation of electrophotographic color toner by suspension polymerization is described . The effects of dispersion equipment , dispersion process parameter and concentration of dispersant on the particle size were discussed .
The parameters of catalyst preparation include the different amounts of cu , ratio of samarium oxide to cerium oxide , temperature of calcinations , types of dispersant , amount of dispersant , method of mixing , amount of promoter , concentration of precursor .
The results show that most dispersants exhibit multi layer adsorption after achieving monomolecular layer saturated adsorption . The saturated adsorption amount of mono layer is mainly dependent on the coal rank , specific surface area of coal and the structure and property of dispersant .