Purification of Phosphoric Acid Hemihydrate Crystal by Dry-sweating

doi:10.15961/j.jsuese.2013.01.012

您当前的位置：

首页 >

文章列表页 >

Purification of Phosphoric Acid Hemihydrate Crystal by Dry-sweating

更新时间：2023-11-14

- Purification of Phosphoric Acid Hemihydrate Crystal by Dry-sweating
- Advanced Engineering Sciences Vol. 45, Issue 1, Pages: 192-197(2013)
- 作者机构：
  
  四川大学化学工程学院
- 作者简介：
- 基金信息：
- DOI：10.15961/j.jsuese.2013.01.012
  CLC：
- Published：2013，
  
  Published Online：19 June 2012，
扫描看全文
王保明,李军,贾旭宏,齐亚兵,罗建洪.干法发汗提纯半水磷酸晶体的实验研究[J].工程科学与技术,2013,45(1):192-197.

Purification of Phosphoric Acid Hemihydrate Crystal by Dry-sweating. [J]. Advanced Engineering Sciences 45(1):192-197(2013)
王保明,李军,贾旭宏,齐亚兵,罗建洪.干法发汗提纯半水磷酸晶体的实验研究[J].工程科学与技术,2013,45(1):192-197. DOI： 10.15961/j.jsuese.2013.01.012.

Purification of Phosphoric Acid Hemihydrate Crystal by Dry-sweating. [J]. Advanced Engineering Sciences 45(1):192-197(2013) DOI： 10.15961/j.jsuese.2013.01.012.

摘要

中文摘要: 采用干法发汗提纯半水磷酸晶体制备高纯磷酸。考察了发汗过程中发汗温度、冷却速率、酸浓度、发汗时间等参数对Mg和Sb脱除及净化效率的影响。结果表明：发汗温度越高，杂质脱除越快，净化效率越低，而且所得产品杂质含量也越少；结晶过程中的冷却速率越大，所得晶体中杂质含量也越多，杂质在发汗过程中脱除也越快，净化效率也越低，但是最终产品杂质含量越高；半水磷酸晶体中初始杂质含量越少，发汗所得产品纯度也越高

因此干法发汗可以用来精制磷酸。

Abstract

Abstract:A method of dry-sweating was applied to purify phosphoric acid hemihydrate crystals to obtain high purity phosphoric acid. The effects of operating parameters

such as sweating temperature

cooling rate

phosphoric acid concentration and sweating time on the removal and purification efficiency of Mg and Sb were investigated. The experimental results showed that the content and purification efficiency of impurities decrease with the increase of sweating temperature

the content of impurities in the product obtained at higher sweating temperature are lower. The content of impurities in the crystals formed at higher cooling rate during crystallization are more

and the impurities can be removed easily during dry-sweating

moreover the purification efficiency of impurities are lower

however the content of impurities in the final product are more. The less the initial content of impurities in the crystals is

the higher the purity of product is. Therefore

dry-sweating can be used to fine phosphoric acid.

关键词

磷酸提纯干法发汗

Keywords

phosphoric acidpurificationdry-sweating

references

更多指标>

Views

下载量

CNKI被引量

Alert me when the article has been cited

提交

Tools

Publicity Resources

Experimental and Theoretical Investigation on Purification Process of Organic Materials in an Inclined Column Crystallizer

Study on Purification Process of Yellow Phosphorus

Related Author

No data

Related Institution

四川大学化工学院四川

四川大学化工学院

四川大学化学工程学院四川

⁰