| 发明名称 |
PROCESS AND APPARATUS FOR CONTINUOUSLY DIGESTING PLANT FIBER MATERIAL |
| 摘要 |
<p>A process and an apparatus for continuously digesting plant fiber material are described, the plant fiber material being treated with an organic solvent at temperatures of 130 - 210.degree.C in a counter-current manner. The plant fiber material is impregnated with an organic solvent in an impregnating means and is positively conducted in a downward direction through the reactor. An organic solvent is introduced into the middle reactor zone as an extraction liquor and is conducted upwardly to the plant fiber material in a counter-current. Water is supplied in the bottom reactor zone as a wash liquor and is conducted upwardly to the plant fiber material in a countercurrent. It is withdrawn in the middle reactor zone. The laden extraction liquor is separated into the essential components lignin, hemicellulose and solvent.</p> |
| 申请公布号 |
CA1111694(A) |
申请公布日期 |
1981.11.03 |
| 申请号 |
CA19790342248 |
申请日期 |
1979.12.19 |
| 申请人 |
MD-PAPIERFABRIKEN HEINRICH NICOLAUS G.M.B.H. |
发明人 |
BAUMEISTER, MANFRED;EDEL, EUGEN |
| 分类号 |
D21C3/20;(IPC1-7):21C7/00 |
主分类号 |
D21C3/20 |
| 代理机构 |
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