发明名称 |
FOERFARANDE FOER FRAMSTAELLNING AV KOKVAETSKA ERFORDERLIG I NEUTRALSULFITKOK MED ANTRAKINONOEKNING |
摘要 |
A process for the preparation of a neutralsulfite digesting liquor and for adjusting the pH of the liquor while starting from a sodium-sulfite/sodium-carbonate solution that contains sodium bisulfite and/or sodium bicarbonate. The pH of the solution is raised to the pH-range of 8 to 11 by stripping carbon dioxide off the solution by means of water vapour or some other inert gas. The final adjustment of the pH of the cooking liquor can be performed by means of sodium hydroxide. |
申请公布号 |
FI803574(L) |
申请公布日期 |
1982.05.15 |
申请号 |
FI19800003574 |
申请日期 |
1980.11.14 |
申请人 |
RAUMA-REPOLA OY |
发明人 |
REILAMA ISMO;VAINIOTALO ARTO;KETTUNEN JUKKA |
分类号 |
D21C3/02;D21C11/02 |
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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