专利名称 | METHOD FOR PRODUCING MICROCRYSTALLINE CELLULOSE | ||
申请号 | RU2018113167 | 申请日 | |
公开(公告)号 | RU2684082C1 | 公开(公告)日 | |
申请(专利权)人 | Obshchestvo s ogranichennoj otvetstvennostyu "Natsionalnaya Issledovatelskaya Kompaniya" | 发明人 | Nikolskij Sergej Nikolaevich; Stovbun Sergej Vitalevich; Mikhaleva Mariya Gennadevna; Politenkova Galina Grigorevna; Kovaleva Kseniya Igorevna |
专利来源 | 国家知识产权局 | 转化方式 | |
摘要 |
FIELD : production of cellulose.SUBSTANCE : invention relates to production of microcrystalline cellulose - fine cellulose material - from various types of lignocellulose materials obtained from wood semi-finished products during processing at pulp and paper enterprises, commercial cellulose obtained from plants, including wood raw material, annual and perennial non-wood cultures, including cotton. Method of producing microcrystalline cellulose is carried out by decomposing cellulose stock using an acid solution, obtained product is washed and dried. At that, before decomposition process, cellulose raw material is dissolved in water, mixed with dispersion, obtained suspension is filtered out, the obtained residue is washed with water, repeatedly filtered by using vacuum until free water is removed from it.EFFECT : invention enables to remove bulk of impurities contained in the raw material and obtain a product with high degree of purity.4 cl |
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