METHODS FOR SUPPRESSING DEPOSITION OF ORGANIC CONTAMINANTS IN SYSTEMS FOR PRODUCTION OF CELLULOSE AND PAPER

FIELD: chemistry. SUBSTANCE: invention relates to methods of suppressing deposition of organic contaminants in systems for production of cellulose and paper. Method comprises adding to system for production of cellulose and paper composition， which includes non-sulphated or slightly sulphonated lignins and hydrophobically modified water-soluble polymers and/or compositions containing two or more slightly sulphonated lignins. Slightly sulphonated lignin has a degree of sulphonation of less than 3.5 moles of sulphur per 1 kg of lignin. EFFECT: preventing and/or suppressing deposition of sticky and resinous contaminants on surfaces in cellulose and paper production systems. 19 cl， 15 tbl， 4 ex

技术领域：化学。本发明涉及纤维素与纸张生产系统中有机污染物沉积的抑制方法。该方法包括向纤维素与纸张生产系统中添加组合物，所述组合物包含非硫酸化（non-sulphated）或轻度磺化木质素（slightly sulphonated lignin），以及疏水改性水溶性聚合物，和/或包含两种及以上轻度磺化木质素的组合物。所述轻度磺化木质素的磺化度低于每千克木质素3.5摩尔硫。有益效果：可防止和/或抑制纤维素与纸张生产系统内表面上粘性及树脂状污染物的沉积。本发明包含19项权利要求、15个表格及4个实施例。