|本期目录/Table of Contents|

[1]吴保意,霍明甲,张金梅,等.丁基钠黄药热稳定性的研究[J].中国安全生产科学技术,2012,8(9):67.
　WU Bao yi,HUO Ming jia,ZHANG Jin mei,et al.Study on the thermal stability of sodium nbutyl xanthate[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2012,8(9):67.
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丁基钠黄药热稳定性的研究
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《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]

卷:
8
期数:
2012年9期
页码:
67
栏目:
学术论著
出版日期:
2012-09-30

文章信息/Info

Title:
Study on the thermal stability of sodium nbutyl xanthate
作者:
吴保意; 霍明甲; 张金梅; 王慧欣; 谢传欣
（中国石化青岛安全工程研究院，化学品安全控制国家重点实验室，青岛 266071）
Author(s):
WU Baoyi;  HUO Mingjia;  ZHANG Jinmei;  WANG Huixin;  XIE Chuanxin
(State Key Laboratory of Safety and Control for Chemicals, SINOPEC Safety Engineering Institute, Qingdao 266071, China)
关键词:
丁基钠黄药; 热稳定性; 真空安定性试验; 分解
Keywords:
sodium nbutyl xanthate;  thermal stability;  vacuum stability test;  decomposition
分类号:
X937
DOI:
-
文献标志码:
A
摘要:
为评价丁基钠黄药的热稳定性，采用真空安定性测试仪和C600量热仪对其热分解过程进行了研究。分别考察了质量为10g的样品在温度为60℃、70℃、80℃、90℃、100℃和质量为05g、075g、10g、125g、15g、175g、20g的样品在温度80℃条件下的热分解特性。结果表明，采用真空安定性测试仪在80℃、21mL真空封闭空间的测试条件下，当丁基钠黄药质量小于125g时，其平均分解速率较慢，与时间近似成线性关系；当样品质量大于150g时，其平均分解速率与时间近似呈一条S形曲线。平均分解速率与质量不是成正比，而是先增加后减小，质量为165g时，平均分解速率最大，为00957mL/（g·h）。采用C600量热仪确定了丁基钠黄药的分解过程为吸热反应，起始分解温度为93℃，分解过程吸收热量为11051J/g。明确了温度、堆积样品量的大小和时间为影响丁基钠黄药热稳定性的主要因素
Abstract:
The thermal stability of sodium nbutyl xanthate were studied by means of Calvet calorimeter C600 and vacuum stability tester. In this article, the thermal decomposition characteristics of 10g sample were investigated at the temperature of 60℃, 70℃, 80℃, 90℃, 100℃ and 05g, 075g, 10g, 125g, 15g, 175g, 20g sample at 80℃. The testing results of vacuum stability tester in testing conditions(80℃and 21mL vacuum space) show an approximately linear relationship between the sodium nbutyl xanthate decomposition and time. The average decomposition rate is slow when the mass of sodium nbutyl xanthate less than 125g. If the mass exceeds 15g, it is an approximately Ssharped curve. At the same time, the average decomposition rate of the sodium nbutyl xanthate is not proportional to the mass. It increases firstly and then decreases. When the mass is 165g, the maximum average decomposition rate is achieved, which is 00957 mL/（g·h）. In the meantime, according to the results of Calvet calorimeter C600, the decomposition reaction of sodium nbutyl xanthate is an endothermic process, the initial decomposition temperature and enthalpy of which is 93℃ and 11051 J/g respectively. According to the study, it manifests clearly and definitely that temperature, size of accumulation mass and time are the main factors to affect the thermal stability of sodium nbutyl xanthate.

参考文献/References:

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备注/Memo

备注/Memo:
“973”国家科技支撑计划项目(编号：2010CB735510）
更新日期/Last Update: 2012-10-16