| 改良硫酸法制取糠醛联产复合肥新工艺研究 |
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| 引用本文： | 刘俊峰,易平贵,陈安国.改良硫酸法制取糠醛联产复合肥新工艺研究[J].环境工程,2000,18(4):43-45. |
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| 作者姓名： | 刘俊峰 易平贵 陈安国 |
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| 作者单位： | 湘潭工学院化学工程系,湖南,411201 |
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| 摘 要： | 研究了以稻草和麦杆为原料 ,用改良硫酸法制取糠醛的工艺条件 ,结果表明 :用 2 0 %硫酸 (液固为 2 5∶1) ,加入复合添加剂 (Ⅰ )或 (Ⅱ )添加比例为 15 %～ 30 % ,常压 ,10 0℃蒸馏 2h ,出醛率达理论出醛率的 70 %～ 80 % ,废渣全部变为中性复合肥料
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| 关 键 词： | 稻草 麦杆 改良硫酸法 糠醛 复合肥 |
| 修稿时间： | 1999-11-02 |
STUDY ON THE NEW TECHNOLOGY FOR COMBINED PRODUCING FURFURAL AND COMPOSITE FERTILIZER BY THE IMPROVED METHOD WITH SULFURIC ACID CATALYSIS |
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| Liu Junfeng.STUDY ON THE NEW TECHNOLOGY FOR COMBINED PRODUCING FURFURAL AND COMPOSITE FERTILIZER BY THE IMPROVED METHOD WITH SULFURIC ACID CATALYSIS[J].Environmental Engineering,2000,18(4):43-45. |
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| Authors: | Liu Junfeng |
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| Affiliation: | Liu Junfeng et al |
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| Abstract: | This paper studies the process conditions for producing a furfural using the improved method of sulfuric acid catalysis by taking straw and wheat straw as the raw materials. The results show that according to the following conditions:sulfuric acid is 20%(wt),the ratio of liquid to solid is 2.5∶1(wt),the composite additive (Ⅰ)or (Ⅱ)is added in the ratio of 15%～30%(wt),the fufural yield is 70%～80% of its theoretical rate after 2hrs of distillation under the normal pressure and at 100℃.Especially, all the residues can be changed into neutral complex fertilizers. |
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| Keywords: | straw wheat-straw improved method with sulfuric acid catalysis furfural and composite fertilizer |
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