| 包东风,盛月强,徐建根,陈胡星,王学武.染料工业副产石膏用于水泥缓凝剂的
试验及应用研究[J].水泥工程,2014,27(1):26-28 |
| 染料工业副产石膏用于水泥缓凝剂的
试验及应用研究 |
| Experimental study on gypsum of dye industry by-products as cement retarder |
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| DOI： |
| 中文关键词: 染料工业 副产石膏 水泥缓凝剂 试验研究 |
| 英文关键词: dye industry by-product gypsum cement retarder experimental study |
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| 中文摘要: |
| 染料中间体生产过程中产生含硫酸的废液，石灰中和后可合成石膏。该副产石膏的主要成分与天然二水石膏相似，可用作水泥缓凝剂。试验研究了染料工业副产石膏对水泥凝结时间、流动度、强度等性能的影响，结果表明,副产石膏与天然石膏或脱硫石膏复合作水泥缓凝剂是可行的；但因副产石膏含水量较高,实际生产应用中需对其进行晾晒并与脱硫石膏混合造球处理。 |
| 英文摘要: |
| Waste sulfuric acid discharged from dye intermediates production process can turn into gypsum with lime neutralization. The by-product gypsum's main components are similar to that of natural gypsum,and can be used as cement retarder. The experiment studied the impacts of by-product gypsum on cement performance as setting time,fluidity and strength. And the results show that it is feasible to use the composite of by-product gypsum and natural gypsum or desulfurization gypsum as cement retarder; but because of high water content in by-product gypsum, in real production,it is need dying and mixing pelletizing with desulfurization gypsum. |
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