| 糠醛生产废渣直接转化为复合肥的研究 |
| 摘要点击 1337 全文点击 1489 投稿时间：1995-10-03 |
| 查看HTML全文
查看全文 查看/发表评论 下载PDF阅读器 |
| 中文关键词 改良硫酸法 糠醛生产 废渣转化 复合磷钾肥 |
| 英文关键词 modification of sulfuric acid catalysis production of furfural conversion of waste settlings complex fertilizer containing phosphate and potassium |
|
| 中文摘要 |
| 以稻草(或麦杆)为原料,用硫酸作催化剂,分别添加过磷酸钙、重钙和复合添加剂,常压水解,温度110℃-140℃,添加剂与原料比1:2-1:3(W/W),液固比3:1-4:1(W/W),水解时间2-3h,出醛率较一般硫酸法高3%-4%(以干稻草计),渣pH≈7,有效磷和钾的含量均达到复合磷钾肥标准。 |
| 英文摘要 |
| The results showed that the waste settlings is almost neutral and contains effective phosphorus and potassium, which are all satisfied to the quality standard for the complex fertilizer in fur fural formation from straw of rice (or straw of wheat), and the yield of furfural exceeded 9% (as ahs dry raw meterial) by the addition of the materials under the conditions of hydrolysis which showed as following:the temperature 110℃ 140℃, the ratio of the additions to straw:1:2-1:3 by weight,the ratio of the liquid to the solid:3:1-4:1 by weight,time of hydrolysis:2-3 h,and 1 atm. |
|
|
|
