[1]汪志杰　高文中　农韦健　陆泰榕　李　伟.PVA醇解废液生产醋酸钠及其在甲醇水溶液中溶解度[J].大众科技,2020,22(10):29-31.
　Production of Sodium Acetate from Waste Solution of PVA and Its Solubility in Methanol Solution[J].Popular Science & Technology,2020,22(10):29-31.
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PVA醇解废液生产醋酸钠及其 在甲醇水溶液中溶解度()
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《大众科技》[ISSN:1008-1151/CN:45-1235/N]

卷:
22
期数:
2020年10
页码:
29-31
栏目:
出版日期:
2020-10-20

文章信息/Info

Title:
Production of Sodium Acetate from Waste Solution of PVA and Its Solubility in Methanol Solution
作者:
汪志杰1　高文中1　农韦健2　陆泰榕2　李　伟3
（1.广西皖维生物质科技有限公司，广西 宜州 546300； 2.广西科开成林科技有限公司，广西 南宁530022；3.广西大学化学化工学院，广西 南宁530004）
关键词:
醋酸钠; 聚乙烯醇（PVA）; 甲醇; 水; 溶解度
Keywords:
sodium acetate polyvinyl alcohol (PVA) methanol water solubility
文献标志码:
A
摘要:
采用激光动态法测定了醋酸钠在甲醇-水溶液中的固液溶解度，考察温度、甲醇水溶液浓度对醋酸钠溶解度的影响。结果表明，醋酸钠溶解度随着温度的升高而增大，随温度降低而减小；随甲醇-水溶液中水的含量升高而增大。在醋酸钠冷冻结晶过程中，根据醋酸钠在甲醇-水溶液中的溶解度数据判断固液平衡点，当冷却降温至平衡点时必须注意加入晶种，防止出现过饱和现象，导致醋酸钠结晶粒径过小。此外并根据醋酸钠在甲醇-水溶液中的溶解度数据，设计了醋酸钠生产流程和装备。
Abstract:
The solid-liquid solubility of sodium acetate in methanol-water solution was measured by laser dynamic method, and the effects of temperature and methanol solution concentration on the solubility of sodium acetate were also investigated. The results show that the solubility of sodium acetate increases with increasing temperature and decreases with decreasing temperature the solubility increases with increasing water content in the methanol-water solution and decreases with decreasing water content. The solid-liquid equilibrium point is judged based on the solubility data of sodium acetate in the methanol-water solution during the freezing crystallization process. When cooling to the equilibrium point, it is necessary to adding seed crystals to prevent from oversaturation, which could lead the sodium acetate crystal particle size to be too small. In addition, the production process and equipment of sodium acetate have been designed according to the solubility data of sodium acetate in methanol-water solution.

参考文献/References:

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备注/Memo

备注/Memo:
【收稿日期】2020-08-05 【基金项目】2018年度南宁市培养新世纪学术和技术带头人专项资金项目（No. 2018013）。 【作者简介】汪志杰（1966－），男，广西宜州人，广西皖维生物质科技有限公司副总工程师与副总经理，从事化工装备技术与管理工作。 【通信作者】农韦健（1980－），男，广西科开成林科技有限公司正高级工程师，博士，从事松香松节油等林产化学品深加工研究工作。
更新日期/Last Update: 2020-11-19