| 摘要: |
| 沥青中含有苯酚类化合物，考察5种沥青中酚类组分的浸出特性,分析浸出温度、浸出时间、除冰盐(NaCl)和 pH值对沥青中酚类组分浸出量的影响,评价酚类组分对水体的潜在危害性，通过气相色谱/质谱(GC/MS)方法评价 浸提液中酚类组成。结果表明:浸出温度、浸出时间对酚类组分的浸出量影响不大，且浸出量都低于地表水限定指 标;在浸出温度为100 'X:，浸出时间为30 min的条件下，NaCl和pH值对酚类组分的浸出量影响较大，最大浸出量超 过地表水限定指标;对水体具有潜在危害性的酚类化合物主要是挥发性的烧基取代的一元酚类化合物。 |
| 关键词: 沥青 酚类组分 浸出特性 潜在危害 |
| DOI：10.3969/j.issn.1673-5005.2010.02.031 |
| 分类号::TE 626.86 |
| 基金项目: |
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| Leachability of phenolic components from asphalt and its composition |
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CAI Hong-mei, WEI Jian-ming, WANG Peng, ZHANG Yu-zhen
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(State Key Laboratory of Heavy Oil Processing in China University of Petroleum, Dongying 257061，China)
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| Abstract: |
| The leachability of phenolic components from five kinds of asphalts was studied. The effects of leaching temperature, leaching time, NaCl and pH value on the leachability of phenolic components were analyzed. The potential hazard of phenolic components to water was evaluated through the leaching test because phenolic components are present in asphalt. The qualitative analysis of leachate was done by GC/MS. The results show that leaching temperature and leaching time almost do not affect the leachability of phenolic components, and phenol content does not exceed the limit of surface water standard at 100 Tl, in 30 min. But NaCl and pH value have much effect on the leachability compared with leaching temperature and time，and maximal phenol content exceeds the limit of surface water standard. The phenolic components having the potential hazard to water were almost alkyl substituted phenol belonging to volatile phenol. |
| Key words: asphalt phenolic components leachability potential hazard |
