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| Preparation of Graded Lignin Flocculant and Its Effects on theTreatment of Simulated White Water from Reconstituted Tobacco Sheets |
| Received:November 21, 2024 |
| DOI：10.11980/j.issn.0254-508X.2025.04.005 |
| Key Words:lignin oragnic solvent fractionation flocculant simulated white water |
| Author Name | Affiliation | Postcode | | HU Nianwu* | China Tobacco Hubei Industrial Co., Ltd., Wuhan, Hubei Province, 430040
Hubei Xinye Reconstituted Tobacco Development Co., Ltd., Wuhan, Hubei Province, 430056
Applied Technology Research of Reconstituted Tobacco Hubei Province Key Lab, Wuhan, Hubei Province, 430040 | 430040 | | WEI Shuoguo | China Tobacco Hubei Industrial Co., Ltd., Wuhan, Hubei Province, 430040
Hubei Xinye Reconstituted Tobacco Development Co., Ltd., Wuhan, Hubei Province, 430056
Applied Technology Research of Reconstituted Tobacco Hubei Province Key Lab, Wuhan, Hubei Province, 430040 | 430040 | | WANG Liang | China Tobacco Hubei Industrial Co., Ltd., Wuhan, Hubei Province, 430040 | 430040 | | ZHENG Kai | China Tobacco Hubei Industrial Co., Ltd., Wuhan, Hubei Province, 430040
Hubei Xinye Reconstituted Tobacco Development Co., Ltd., Wuhan, Hubei Province, 430056
Applied Technology Research of Reconstituted Tobacco Hubei Province Key Lab, Wuhan, Hubei Province, 430040 | 430040 | | WANG Yixin | China Tobacco Hubei Industrial Co., Ltd., Wuhan, Hubei Province, 430040
Hubei Xinye Reconstituted Tobacco Development Co., Ltd., Wuhan, Hubei Province, 430056
Applied Technology Research of Reconstituted Tobacco Hubei Province Key Lab, Wuhan, Hubei Province, 430040 | 430040 | | SHU Hao | China Tobacco Hubei Industrial Co., Ltd., Wuhan, Hubei Province, 430040
Hubei Xinye Reconstituted Tobacco Development Co., Ltd., Wuhan, Hubei Province, 430056
Applied Technology Research of Reconstituted Tobacco Hubei Province Key Lab, Wuhan, Hubei Province, 430040 | 430040 | | LIU Ben | China Tobacco Hubei Industrial Co., Ltd., Wuhan, Hubei Province, 430040
Hubei Xinye Reconstituted Tobacco Development Co., Ltd., Wuhan, Hubei Province, 430056
Applied Technology Research of Reconstituted Tobacco Hubei Province Key Lab, Wuhan, Hubei Province, 430040 | 430040 | | WAN Chao | China Tobacco Hubei Industrial Co., Ltd., Wuhan, Hubei Province, 430040
Hubei Xinye Reconstituted Tobacco Development Co., Ltd., Wuhan, Hubei Province, 430056
Applied Technology Research of Reconstituted Tobacco Hubei Province Key Lab, Wuhan, Hubei Province, 430040 | 430040 | | WANG Lei* | Hubei Provincial Key Lab of Green Materials for Light Industry, Hubei University of Technology, Wuhan, Hubei Province, 430068 | 430068 |
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| Abstract:This paper employed two organic solvents （n-butanol and ethanol） to fractionate corn cob alkaline lignin， yielding lignin components（F1， F2） characterized by high reactivity and excellent accessibility for reactions. Utilizing 2-（methacryloyloxy） 3-ethyl trimethylammonium chloride （METAC） as the grafting monomer and azobisisobutyronitrile （AIBN） as the initiator， lignin flocculant （FX-LBF） was synthesized through free radical polymerization. This paper explored the effects of various preparation conditions （METAC dosage， recation temperature， and recation time） and external environmental factors （FX-LBF dosage， suspension concentration， pH value， and coexisting ions） on the flocculation efficacy of FX-LBF. The results showed that FX-LBF prepared with METAC∶FX mass ratio of 6∶1， reaction temperature of 50~60 ℃， and reaction time of 3~4 h exhibited the optimal flocculation performance. Notably， the removal rate of F2-LBF prepared with ethanol graded lignin on simulated white water of reconstituted tobacco sheets （Kaolin suspension） was 98.9%， and the removal rate of suspended matter in concentrated white water of reconstituted tobacco sheets production line was 98.0%. Furthermore， by modulating external environmental variables， it was observed that the optimal removal rate for reconstituted tobacco sheets simulated white water remained above 88.0%， indicating that FX-LBF prepared from graded lignin possessed robust environmental adaptability. |
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