摘要
研究了氨水加入量、NH_(4)HCO_(3)浓度对Mg(OH)_(2)和文石的收率和晶型的影响规律。结果表明,随着氨镁摩尔比的增大,氢氧化镁的收率逐渐增大,当氨镁摩尔比为2.5时,氢氧化镁颗粒表现出了较高的收率和良好的片状结晶。随着NH_(4)HCO_(3)浓度的逐渐减小,文石的含量逐渐增大,当NH_(4)HCO_(3)浓度为0.40 mol/L时,文石含量可达99%,并呈现出分散性较好的针状结晶。
The influence of ammonia water addition amount and NH_(4)HCO_(3)concentration on the yield and crystal structure of Mg(OH)_(2)and aragonite was studied.The results showed that as the ammonia magnesium molar ratio increased,the yield of magnesium hydroxide gradually in-creased.When the ammonia magnesium molar ratio was 2.5,magnesium hydroxide particles exhibited high yield and good flaky crystallization.As the concentration of NH_(4)HCO_(3)gradually decreases,the content of aragonite gradually increases.When the concentration of NH_(4)HCO_(3)is 0.40 mol/L,the content of aragonite can reach 99%and exhibits well dispersed needle like crystals.
作者
王露
任秀彬
段瑛锋
谢亮斌
霍连杰
Wang Lu;Ren Xiubin;Duan Yingfeng;Xie Liangbin;Huo Lianjie(Shenmu Energy Development Co.,Ltd.,Shaanxi Coal&Chemical Industry Group,Yulin 719000,China;School of Chemistry and Chemical Engineering,Xi'an University of Science and Technology,Xi'an 710054,China)
出处
《当代化工研究》
2025年第14期147-149,共3页
Modern Chemical Research
基金
陕西省教育厅服务地方专项计划项目(23JC054)
榆林市科技计划项目产学研项目(2023-CXY-188)。
关键词
净化灰渣
氢氧化镁
文石
purified ash
Mg(OH)_(2)
aragonite
