烟草科技2019，Vol.52Issue(3)：69-73,5.
再造烟叶浓缩液中添加柠檬酸钾形成沉淀分析
Potassium citrate induced precipitate formation in tobacco concentrate for reconstituted tobacco
臧福坤 1李新生 1严新龙 1赵东辉 1林晓利1
作者信息
- 1. 上海烟草集团太仓海烟烟草薄片有限公司技术中心,江苏省太仓市港口开发区东方东路19号 215433
- 折叠
摘要
Abstract
In order to establish the precipitation mechanism when adding potassium citrate into tobacco concentrate to prepare the coating liquid used for paper-making reconstituted tobacco, the relationship between the precipitate content and the potassium citrate addition rate was investigated. The contents of anions and cations in the tobacco concentrate and the centrifugal supernatant of the coating liquid were measured by ion-exchange chromatography and the main ions participating in precipitation reaction were analyzed by calculating their lost rate during centrifugation. The results showed that: 1) The precipitate content in the coating liquid increased with the increase of the addition rate of potassium citrate. 2) The main anions participating in the reaction were citrate, malate and oxalate, while the main cations were calcium and magnesium ions. 3) The shifting of acid-base equilibrium and precipitation-dissolution equilibrium were the intrinsic formation mechanisms of the precipitate.关键词
造纸法再造烟叶/沉淀/涂布液/柠檬酸钾/阴、阳离子/化学平衡/离子交换色谱法Key words
Paper-making reconstituted tobacco/Precipitate/Coating liquid/Potassium citrate/Anion and cation/Chemical equilibrium/Ion-exchange chromatography分类
轻工纺织引用本文复制引用
臧福坤,李新生,严新龙,赵东辉,林晓利..再造烟叶浓缩液中添加柠檬酸钾形成沉淀分析[J].烟草科技,2019,52(3):69-73,5.
