| 酸性制浆浓缩废液的改性及对水泥的减水作用研究 |
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| 引用本文： | 林汉权,吕永松.酸性制浆浓缩废液的改性及对水泥的减水作用研究[J].造纸科学与技术,2003,22(5):19-20. |
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| 作者姓名： | 林汉权 吕永松 |
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| 作者单位： | 广东省造纸研究所,广州,510300 |
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| 基金项目： | 广东省环保科技研究开发项目 (粤环 2 0 0 1-15 )，广东省科技攻关项目 (省科技厅 2 0 0 2C10 3 0 3 0 9) |
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| 摘 要： | 为开发含木质素磺酸镁的制浆废液利用，本研究在改性反应中不采用三聚氰胺，而是采用甲醛和舍磺酸基化合物与红液反应引入了羟甲基和磺酸基，目的是提高其对水泥的分散作用和对混凝土减水率的稳定性。结果显示：改性后的制浆废液对水泥的分散作用显著提高，减水率达19．0％。
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| 关 键 词： | 废液利用 酸法制浆废液 化学改性 减水作用 水泥 造纸工业 减水剂 木质素磺酸镁 |
Modification of Concentrated Sulfite Pulping Spent Liquor and Its Water Reducing Performance to Cement |
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| Lin Hanquan,Lu Yongsong.Modification of Concentrated Sulfite Pulping Spent Liquor and Its Water Reducing Performance to Cement[J].Paper Science & Technology,2003,22(5):19-20. |
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| Authors: | Lin Hanquan Lu Yongsong |
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| Abstract: | In order to improve the dispersion performance to cement of the sulfite pulping spent liquor containing magnesium lignosulfonate and increase its water-reducing ratio to concrete,formaldehyde and a compound with a sulfonic group instead of melamine resin, were used to react with the sulfite pulping spent liquor so that hydroxymethyls and sulfonic groups could be introduced into the molecules of magnesium lignosulfonate.It was showed that the modified product had obvious effect on the dispersion performance of cement and stability of water-reducting property. Up to 19% of water reducing ratio was obtained. |
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| Keywords: | sulfite pulping spent liquor chemical modification water-reduction cement |
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