发明名称 |
FOERFARANDE FOER STYRNING AV ALKALISKA CELLULOSAKOK. |
摘要 |
A procedure for monitoring alkaline delignification, in particular kraft cooking, of wood or other cellulosic material with the aid of the mutually relative concentrations of the monomeric lignin hydration products which are formed in connection therewith and are dissolved in the spent liquor. According to the procedure, a sufficient number of representative spent liquor samples is taken during the cooking process which are analyzed by gas chromatography. On the basis of the concentration proportions of certain compounds which have been analyzed, that time period is determined in each instance which is required to reach the desired degree of delignification.
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申请公布号 |
FI870312(A) |
申请公布日期 |
1988.07.24 |
申请号 |
FI19870000312 |
申请日期 |
1987.01.23 |
申请人 |
KAJAANI ELEKTRONIIKKA OY |
发明人 |
ALEN, RAIMO JUHANI;SJOESTROEM, EERO VILHELM |
分类号 |
D21C3/02;D21C7/12;(IPC1-7):D21C/ |
主分类号 |
D21C3/02 |
代理机构 |
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