首页>
外国专利>
MODIFIED STARCH FLOCCULANT AND METHOD OF PRODUCING THEREOF
MODIFIED STARCH FLOCCULANT AND METHOD OF PRODUCING THEREOF
展开▼
机译:改性淀粉絮凝剂及其制备方法
展开▼
页面导航
摘要
著录项
相似文献
摘要
The invention is designed for the efficient cross-linked cationic starch flocculant of the broad flocculation window, which during the flocculation of suspensions is able to bind soluble anionic pollutants, and for method of production of such flocculant. Cross-linked cationic starch is obtainable by cross-linking and cationization of starch in one-stage or two-stage process. The flocculant is obtained by dispergation of microgranules of cross-linked cationic starch with use of shear forces in water or aqueous mixture with multifunctional alcohols after swelling of modified starch in the dispersion medium up to the balance state. A degree of substitution of the discrete submicro-, nanoparticles of the modified starch flocculant according to cationic groups is from 0.15 to 0.28, accessibility of its cationic groups for polyanions is between 15 and 40 percent.
展开▼