氨气法制备多形貌氢氧化镁及

对氧化镁活性的影响*

Abstract

Abstract: Effect of different magnesium salts on the morphologies of MgO crystals was investigated.The precursors ［Mg（OH）2］with different morphologies were synthesized by employing three kinds of magnesium salts as raw materials and NH3（g） as precipitant，and then different morphologies of magnesium oxide（MgO） crystals by calcining the precursors. Scanning electron microscope（SEM），X-ray powder diffraction（XRD），TG analyzer，and laser particle size analyzer were employed to characterize the products，and citrate method was used for determination of magnesium oxide activities.Results indicated that the morphologies of MgO crystals were tetragonal massive，flake，and flower spherical with the raw materials of MgCl2·6H2O，Mg（NO3）·6H2O，and MgSO4，respectively.By means of the study on activities of magnesium oxide with dif- ferent morphologies prepared under different calcined conditions，it was concluded that magnesium oxide activity was the highest under the heating rate of 10 ℃/min to 600 ℃ for 2 h.Different morphologies of magnesium oxide under the same calcination condition had different activities: tetragonal massive>flake>flower spherical.

Key words: MgO, activity, morphology

HU Han, XIE Jia-Yang, LI Xue, Wang-Huai-Shi, Chang- Peng, Liu-Yun-Yi. Preparation of Mg（OH）2 with different morphologies by ammonia method and research of their influences on MgO activity[J]. INORGANICCHEMICALSINDUSTRY, 2014, 46(9): 29-.

[1]	Jin Jihai,Liu Lizhi,Song Junhui,Jiao Zukai,Yan Jinlong,Zhen Tao,Zhang Duo. Study on hydrodeacidification performance of off-site pre-sulfidation catalysts [J]. Inorganic Chemicals Industry, 2020, 52(9): 100-104.
[2]	Liu Yonghe,Zhang Yanyan. Effect of modification process of thermal conductive alumina on thermal conductivity of interfacial materials [J]. Inorganic Chemicals Industry, 2020, 52(9): 70-72.
[3]	Xu Naicai,Shi Dandan,Li Sixia. Research on structure regulation and fluorine removal property of mesoporous alumina [J]. Inorganic Chemicals Industry, 2020, 52(6): 20-23.
[4]	Xu Naicai,Li Sixia,Cao Jiajia,Yang Gangshenga. Research on doping modification and adsorption performance of manganese oxides lithium ion sieve [J]. Inorganic Chemicals Industry, 2020, 52(4): 37-41.
[5]	Wang Zinan,Chen Kui,Zhu Jiawen,Zhang Yurong,Lin Farong,Zhou Xiaokui. Effects of crystal seeds and salt dopants on phase transformation of TiO₂ in calcination process [J]. Inorganic Chemicals Industry, 2020, 52(3): 45-50.
[6]	Kuang Yi,Li Jun,Jin Yang,Chen Ming,Zuo Longtao. Synthesis of nano-sized zinc oxide in liquid phase and its photocatalytic properties [J]. Inorganic Chemicals Industry, 2019, 51(9): 40-44.
[7]	Hai Ran,Wang Shuaiqi,Liu Pan,Liu Junxia. Effect of thermal activated temperature on activation and mechanism of red mud from alumina production [J]. Inorganic Chemicals Industry, 2019, 51(9): 72-75.
[8]	Cheng Longjun,Li Jun,Wen Yanshen,Chen Changming,An Xiaoying,Gong Chuangzhou. Study on characteristic analysis of feed grade basic copper chloride [J]. Inorganic Chemicals Industry, 2019, 51(9): 88-90.
[9]	Xu Yuansheng,Li Jianwei,Ma Yan,Li Guowang,Zhang Maoliang,Shan Xueqiang. Study on preparation and property of CdS-TiO₂/zeolite composite catalysts [J]. Inorganic Chemicals Industry, 2019, 51(6): 83-87.
[10]	Zhang Chan,Cheng Wenting,Cheng Huaigang,Guo Yanxia,Cheng Fangqin. Simulation and determination of AlCl₃·6H₂O solubility in FeCl₃-CaCl₂-HCl-H₂O system [J]. Inorganic Chemicals Industry, 2019, 51(5): 61-65.
[11]	HAI Ran, LIU Jun-Xia, LI Jian-Wei. Research status of radioactivity and shielding mechanism of alumina red mud [J]. INORGANICCHEMICALSINDUSTRY, 2016, 48(9): 10-.
[12]	WANG Yan-Fei, WANG Lei-Xin, XING Hong, YANG Jing, ZHAO Yan-Ping, YANG Li-Bin, ZHU Liang, ZHAO Xiao-Yu, SHA Zuo-Liang, WANG Wen-Hai. Size and morphology controlling of lithium carbonate in reactive crystallization process [J]. INORGANICCHEMICALSINDUSTRY, 2016, 48(9): 13-.
[13]	DI Jun, HUANG Chun-Hui, ZHANG Qin, ZHAO Na, ZONG Jun. Research on preparation of heavy MgO by brucite-alkali method [J]. INORGANICCHEMICALSINDUSTRY, 2016, 48(9): 33-.
[14]	XU Su-Peng, TANG Chang-Qing, LI Xiao-Le, SU Xiao-Li, XU Yin-Xia. Study on process conditions of low cost preparation of nanometer zinc oxide [J]. INORGANICCHEMICALSINDUSTRY, 2016, 48(9): 68-.
[15]	LI Xia, ZHOU Shan, ZHANG Jin-Shan, FAN Wen-Yang, ZOU Dong-Xue, SUN Chun-Bao. The study on preparation and performance of NaY guide agent [J]. INORGANICCHEMICALSINDUSTRY, 2016, 48(8): 70-.

National Inorganic Salts Information Center

Inorganic Acid-Base-Salt Committee of CIESC

Preparation of Mg（OH）2 with different morphologies by ammonia method and research of their influences on MgO activity

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Metrics

Comments

Recommended 10