| 摘要: |
| 本文介绍用若干物理的和化学的方法对亚硫酸铵造纸制浆度液中类腐植酸的结构和性质进行表征,为其开展利用提供必要的依据。结果表明该腐植酸分子是一种两性聚电解质型的磺化腐植酸,含有较多的酸性基团,其中酚羟基和磺酸基占较大比例;芳香结构未受到强烈取代;含有较多的胺基有机氮。分子量中偏小,C、E、C 值较高,有较好的表面活性、溶胶稳定性和抗盐能力。预期它具有两性聚电解质的性能;在表面活性剂、水泥减水剂和钻井泥浆处理剂等方面可能有一定利用前景;对亚铵制浆废液在农业上作肥料施用可能有较好的保肥作用。 |
| 关键词: 分子量 制浆废液 两性聚电解质 表面活性剂 黑液 腐植酸钠 表面张力 表征 |
| DOI： |
|
| 基金项目: |
|
| INVESTIGATION ON THE STRUCTURE AND SOME RELATED PROPERTIES OF HUMIC ACID IN THE WASTE PAPER PUIP OF AMMONIUM SUIFITE PROCESS |
|
|
|
| Abstract: |
| The structure and properties of humic acid in the waste paper pulp of ammonium sulfite process has been invstigated. Humic acid in the pulp mentioned is an amphoteric polyelectrolyte of sulfonated humic acld.It contains many acid group and phenolic hydroxye group. The aromatic structure of this humic acid is not highly subsdtuted. It contains amino organic nitrogen groups too.Its molecular weight is slightly lwer,C.E.C.value is comparatively high,propertic related to to suface activity are quite pronounced.... |
| Key words: |
