硝酸浸取磷矿制轻质碳酸钙工艺研究

Abstract

Abstract: Calcium nitrate crystal can be obtained by freezing crystallization method from acid solution acquired from nitric acid extracting phosphate rock. After that，light calcium carbonate was prepared by carbonization reaction between ammonium hydrogen carbonate and calcium nitrate crystal.Results show that，the initial carbonization reaction temperature was the normal temperature，mass fraction of calcium nitrate solution was about 23%，ammonium hydrogen carbonate and ammonia dosages were both 110% of theoretical addition amounts，and products were washed by four times of product weight washing water.All quality indexes of the product can meet the standard of Industrial Precipitated Calcium Carbonate，HG/T 2226—2000.

Key words: calcium nitrate, ammonium hydrogen carbonate, carbonization, light calcium carbonate

CLC Number:

TQ132.32

HU Zhao-Ping, JIA Hong-Xiu, PANG Shi-Hua, LIU Yang, JIA Liang. Preparation of light calcium carbonate by nitric acid leaching phosphate ore[J]. INORGANICCHEMICALSINDUSTRY, 2013, 45(7): 42-.

[1]	Yan Xin,Wu Jianyi,Lu Yunfeng,Yan Ziteng. Study on new technology of comprehensive utilization of alkali residue in ammonia alkali plant [J]. Inorganic Chemicals Industry, 2021, 53(1): 68-71.
[2]	Zhang Yan,Zhao Zhenzhong,Ma Zhaohui,Zhao Yancai,Chen Zhiyu,Ma Zhengqiang. Optimization of process for preparation of battery grade lithium carbonate by carbonization [J]. Inorganic Chemicals Industry, 2020, 52(3): 68-71.
[3]	Hu Min,Gong Hanzhang,Wu Huadong,Guo Jia,Zhang Linfeng,Zhou Yuxin. Preparation of battery-grade lithium carbonate from lithium-containing industrial waste [J]. Inorganic Chemicals Industry, 2020, 52(3): 80-84.
[4]	Wang Yaoxuan,Yuan Aiqun,Zhou Zeguang,Huang Zengwei,Ma Shaomei,Wei Dongping. Prepration of vaterite nano-sized CaCO₃ with elipse ball-like [J]. Inorganic Chemicals Industry, 2020, 52(1): 54-58.
[5]	Yan Xin1，Lu Yunfeng2，Ma Yuanyuan3，Xie Long3. Study on composite carbonization mechanism of nano calcium carbonateproduced by calcium chloride-ammonia water system [J]. Inorganic Chemicals Industry, 2019, 51(7): 77-80.
[6]	Wei Xiao1，Liao Huiwei1，Chen Ning2，Dong Mingfu2，Huang Xiandong2，Huang Yuxi2. Process optimization of preparation of chromium hydroxide from sodium chromate carbonization mother liquor and effect of particle size distribution of chromium trioxide [J]. Inorganic Chemicals Industry, 2019, 51(11): 36-41.
[7]	Liu Xing，Liu Runjing，Zhao Hua，Han Xiaosuo，Sun Ye. Effect of microstructure of basic magnesium carbonate on apparent specific volume [J]. Inorganic Chemicals Industry, 2019, 51(11): 42-45.
[8]	CHEN Jian-Ming, NIU Xiao-Hong, WANG Xiao-Tong, SONG Yun-Hua. Preparation of highly active magnesium oxide by rotor-stator reactor（RSR） [J]. INORGANICCHEMICALSINDUSTRY, 2016, 48(12): 40-.
[9]	FU Jing-Chun. Study on preparation of high purity spherical barium carbonate particles [J]. INORGANICCHEMICALSINDUSTRY, 2016, 48(10): 50-.
[10]	ZHAO Rui-Tong, WANG Jing, DUAN Xiao-Fang, FANG Li. Preparation technology of white carbon black from acid-leached residue of coal gangue [J]. INORGANICCHEMICALSINDUSTRY, 2015, 47(5): 53-.
[11]	PENG Qiu-Hua. Production of battery-grade lithium carbonate from carbonate-type lithium concentrate by deep carbonization method [J]. INORGANICCHEMICALSINDUSTRY, 2014, 46(1): 38-.
[12]	ZHAO Peng-Wei, HU Lin-Na, FEI Chang-Rong, HE Yu-Ji. Discussion on several issues of technical reforms in light calcium carbonate production process [J]. INORGANICCHEMICALSINDUSTRY, 2013, 45(10): 1-.
[13]	ZHOU Qi-Li, WANG Mo-Fei- . Preparation of high purity lithium carbonate by carbonization method [J]. INORGANICCHEMICALSINDUSTRY, 2012, 44(7): 36-.
[14]	LI Yu-Long, ZOU Xing-Wu, WANG Shu-Xuan, LI Bo, LI Ning, YANG Zhan-Shou. Study on rapid determination of calcium in strontium carbonate [J]. INORGANICCHEMICALSINDUSTRY, 2012, 44(4): 38-.
[15]	CAO Yu-Qing, LI Jun, LUO Jian-Hong, YANG Zhao-Peng. Study on crystallization kinetics of calcium nitrate tetrahydrate [J]. INORGANICCHEMICALSINDUSTRY, 2012, 44(12): 22-.

National Inorganic Salts Information Center

Inorganic Acid-Base-Salt Committee of CIESC

Preparation of light calcium carbonate by nitric acid leaching phosphate ore

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Metrics

Comments

Recommended 10