| 第 34 卷第 2 期 |  | Vol. 34 No. 2 | | 2004 年 4 月 | Apr 2004 |
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所屬欄目：其它
雙季戊四醇重結晶新工藝的研究 |
| 滕冬成(衡陽(yáng)三化實(shí)業(yè)股份有限公司; 湖南衡陽(yáng)) |
| 摘 要：研究了一種改進(jìn)的雙季戊四醇重結晶工藝,使雙季戊四醇的灰份從0.1%以上降至0.05%以下,純度從80%提高到85%以上,收率比傳統重結晶工藝提高10%左右,且成本下降,操作更簡(jiǎn)便。實(shí)驗確定的優(yōu)化工藝條件為:溶解水量1:5～6、溶解水溫度60℃、結晶冷卻時(shí)間6～8h、離心分離溫度20℃。 |
| 關(guān)鍵詞：雙季戊四醇; 灰份; 重結晶; 工藝 |
| 中圖分類(lèi)號：TQ223.16 文獻標識碼：A 文章編號：1009-9212(2004)02-0053-03 |
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| Study on the New Technology for the Recrystallizaition of Dipentaerythritol |
| TENG Tong-cheng （Hengyang sanhua enterprise Inc. Hengyang 421002; China） |
| Abstract：A new technology for recrystallized of DPE was studied, the ash cotent of DPE was reduced from 0.1% to 0.05%, the purity of DPE was inproved from 80% to 85%, the total yield is ligher 10% than that old technology. The optimal coditions was follow as :dissolve water multiple 1:5～6: water temperature 60℃;crystallize cooling time 6-8hours; centrifugal temperature 20℃. |
| Key words：dipentaerythritol; ash; recrystallize; techlonogy |
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收稿日期：2003-12-07
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