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第 42 卷第 5 期Vol. 42 No. 5
2012 年 10 月Oct 2012

所屬欄目:功能材料

鄰仲丁基酚精餾殘液提取2,6-二仲丁基酚的工業(yè)性實(shí)驗研究
彭長(cháng)春,張慶云,胡俊明 (湖南海利 株洲精細化工有限公司,湖南 株洲 412005)
摘 要:采用高效金屬絲網(wǎng)填料塔,通過(guò)減壓精餾的方法從鄰仲丁基酚精餾殘液中分離其副產(chǎn)物2,6-二仲丁基酚,可得98.0%以上的2,6-二仲丁基酚產(chǎn)品,收率達85%。通過(guò)對精餾過(guò)程中餾出物組成與操作參數的變化規律的研究,給出了2,6-二仲丁基酚產(chǎn)品采出時(shí)適宜的工藝控制參數:塔頂壓力P控制在532~798 Pa,回流比R控制在4~6。實(shí)驗結果表明采用逐步降低塔內壓強的操作方法對于提高2,6-二仲丁基酚產(chǎn)品的收率具有明顯的效果。
關(guān)鍵詞:2,6-二仲丁基酚;減壓蒸餾;工藝控制參數
中圖分類(lèi)號:TQ224.7  文獻標識碼:A  文章編號:1009-9212(2012)05-0063-03
Recovery of 2,6-Bis(sec-butyl)Phenol from the Distilled Residue of Ortho-secondary Butyl Pheno
PENG Chang-chun*1,ZHANG Qing-yun2,HU Jun-min2 (Zhuzhou Fine Chemical Co.,Ltd. of Hunan Haili,Zhuzhou 412005,China)
Abstract:2,6-Bis(sec-butyl)phenol with an average content of 98.0% was obtained in 85% yield from the distilled residue of ortho-secondary butyl phenol by vacuum distillation with high efficient filling tower packed with wire net. The instantaneous concentration of 2,6-bis(sec-butyl)phenol reached up to 99.2% during the distillation. The optimized parameters include the tower top pressure of 4~6 mmHg and the reflux ratio of 4~6. Experiments showed that to decrease the tower pressure in gradient steps improved the yield of the target product.
Key words:2,6-Bis(sec-butyl)phenol;vacuum distillation;optimized parameters
作者簡(jiǎn)介:彭長(cháng)春(1971-),男,湖南株洲人,工程師,主要從事精細化工方面的技術(shù)開(kāi)發(fā)工作。(E-mail:hnpccps@126.com)
收稿日期:2012-10-01
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