发明名称 |
AMMONIA-KETONE PULPING PROCESS |
摘要 |
<p>AMMONIA-KETONE PULPING PROCESS A method of employing the combination of ammonia and ketones as the cooking chemicals in a digester of a pulping process. This method results in a pulp which has a higher yield than the kraft process yet is characterized by kraft's high strength and fair bleachability. The spent liquor extracts are primarily lignin and contain little cellulose and hemi-cellulose.</p> |
申请公布号 |
CA1075409(A) |
申请公布日期 |
1980.04.15 |
申请号 |
CA19750234716 |
申请日期 |
1975.09.03 |
申请人 |
WEYERHAEUSER COMPANY |
发明人 |
DE HAAS, GERRIT G.;LANG, CHARLES J. |
分类号 |
D21C3/02;D21C3/20;(IPC1-7):21C3/00 |
主分类号 |
D21C3/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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