发明名称 |
FOERFARANDE FOER STYRNING AV SULFITCELLULOSAKOK GENOM ATT BESTAEMMA TOTALHALTEN AV SVAVELDIOXID I KOKVAETSKAN |
摘要 |
A method of rapid determination of the concentrations of the total sulphur dioxide and the lignosulphonate present in sulphite pulping process liquors. The lignosulphonates are separated from compounds which form the total sulphur dioxide by means of an ion exclusion column, whereby the filling material of the column consists of a cation exchange resin. The concentration measurements of the sulphur dioxide and the lignosulphonate are carried out from the liquor flow coming out from the separation column by means of UV-method at the wave length of 280 nm. The invention also relates to a method of controlling the sulphite pulping process by determining the total sulphite dioxide concentration in the pulping liquor. |
申请公布号 |
SE8900034(D0) |
申请公布日期 |
1989.01.05 |
申请号 |
SE19890000034 |
申请日期 |
1989.01.05 |
申请人 |
OY ADVANCED FOREST AUTOMATION AB |
发明人 |
P *TIKKA |
分类号 |
D21C7/12;G01N21/33;G01N30/02;G01N33/00;(IPC1-7):21C/ |
主分类号 |
D21C7/12 |
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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