首页> 外国专利> METHOD OF BLEACHING CELLULOSE PULP (ITS VERSION), BIODEGRADABLE CHELATION AGENT FOR BLEACHING CELLULOSE PULP WITH HYDROGEN PEROXIDE, AND METHOD OF REMOVING PRINTER'S INK FROM CELLULOSE PULP

METHOD OF BLEACHING CELLULOSE PULP (ITS VERSION), BIODEGRADABLE CHELATION AGENT FOR BLEACHING CELLULOSE PULP WITH HYDROGEN PEROXIDE, AND METHOD OF REMOVING PRINTER'S INK FROM CELLULOSE PULP

机译:漂白纤维素纸浆的方法(版本),用过氧化氢漂白纤维素纸浆的可生物降解的冷冻剂,以及从纤维素纸浆中去除打印机墨水的方法

摘要

FIELD: pulp- and-paper industry. SUBSTANCE: cellulose pulp is bleached with hydrogen peroxide in presence of effective amount of at least one biodegradable 1-aminoalkane-1,1-diphosphonate chelation agent with general formula I: (I), wherein R1 is hydrogen atom; R2, and R3 the same or different, hydrogen, C1-C22-alkyl, C5-C6-cycloalkyl, hydroxy-C1-C10-alkyl, carboxyalkyl with up to 10 carbon atoms, and, together with nitrogen, piperidine, pyrrolidine, or morpholine groups; and X is hydrogen atom, alkali metal, or ammonium. Pulp can be preliminarily treated with sufficient amount of compound I and then with hydrogen peroxide. Printer's ink is removed from pulp also using compound I. EFFECT: enhanced activity of bleaching solution and improved environmental condition. 10 cl, 17 dwg, 4 tbl, 9 ex
机译:领域:制浆造纸工业。物质:在有效量的至少一种具有通式I的可生物降解的1-氨基链烷-1,1-二膦酸酯螯合剂的存在下,用过氧化氢对纤维素纸浆进行漂白:<图像文件=“ 00000003.GIF” he =“ 26” id =“ imag0.3” imgContent =“ undefined” imgFormat =“ GIF” wi =“ 22” />(I),其中R 1 是氢原子; R 2 和R 3 相同或不同,氢为C 1 -C 22 -烷基,C 5 -C 6 -环烷基,羟基-C 1 -C 10 -烷基,最多含10个羧基烷基碳原子,并与氮,哌啶,吡咯烷或吗啉基一起; X为氢原子,碱金属或铵。纸浆可以先用足够量的化合物I,然后再用过氧化氢进行初步处理。也可以使用化合物I从纸浆中除去打印机的墨水。效果:增强了漂白液的活性并改善了环境条件。 10 cl,17 dwg,4 tbl,9 ex

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