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| Study on the Application of Filtered Mud of Surgar Refinery as Filler in Papermaking |
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| DOI：10.11980/j.issn.0254-508X.2014.04.008 |
| Key Words:filter mud decolorizer papermaking paper properties |
| Fund Project:国家科技支撑计划项目（No.2011BAE16B02）。 |
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| Abstract:In order to study the feasibility of using the filtered mud of surgar sefinery as filler in papermaking, the filtered mud was purified with mold and alkali firstly, then bleached by the best bleaching agent with the optimum bleaching conditions. Finally the effects of different dosages of the filtered mud on the paper properties were studied, and the paper properties were compared with that of using commercial precipitated calcium carbonate（PCC）under the same conditions. The results showed that: using mold and alkali to purify the filtered mud, the content of the residual organic matter in calcium carbonate content of the filtered mud and the brightness of the mud was up to 51.5%. The experiment showed that the best bleaching sgent was PL2 and the optimum bleaching conditions were as the follows temperature 100℃, bleaching agent dosage 6% and reaction time 1.5 h. On this condition, the brightness of filter mud could reach 60%. The optimal amount of filtered mud used as filler was confirmed 20%. Comparing with the papers added with PCC,a number of properties improved under the same conditions. |
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