摘要
为探讨酸性催化剂对刨花板-苯酚液化的影响,采用硼酸晶体、浓盐酸(37%)、磷酸(85%)和浓硫酸(98%)4种无机酸在不同温度条件下对刨花板(回收废弃刨花板和实验室自制刨花板)进行液化实验。结果表明:浓硫酸(98%)作为催化剂,对刨花板苯酚液化效果较好。在温度150℃、液化时间1.5h、液体比(苯酚/刨花板)为4、催化剂含量为6%的条件下,采用浓硫酸作为催化剂,可使回收废弃刨花板和实验室自制刨花板液化后的残渣率分别降至12.29%和9.95%。
In order to study the effects of acid catalysts on particleboard liquefaction in pheno 1, inorganic acids, such as boric acid, hydrochloric acid （37 %）, phosphoric acid （85 %） and sulfuric acid （98 %）, were investigated at different temperature conditions. The residue ratio of particleboard liquefaction in phenol was applied as an indicator to find the optimum catalyst that has better effect on liquefaction. Results showed that sulfuric acid as a catalyst is better than that of other three acids. The ideal liquefaction yield can be obtained in the presence of sulfuric acid at such condition： liquefaction temperature 150℃, reaction time 1.5 h, liquid ratio （phenol/particleboard） 4, and the content of catalyst 6%. The residue ratio of recycled waste particleboard and the particleboard made in laboratory were 12.29 % and 9.95 % respectively.
出处
《中国人造板》
2008年第5期19-23,共5页
China Wood-Based Panels
基金
国家科技支撑计划课题:木质材料环境友好制造技术(2006BAD18B09)
关键词
刨花板
苯酚液化
催化剂
残渣率
particleboard
liquefaction
acid catalyst
residue ratio
