Phase Diagram for the Na2SO4-NaOH-H2O System and Na2SO4 Solubility in Sodium Aluminate Solution with Caustic Ratios of 12 and 15 at 80 degrees C

CORC > 过程工程研究所 > 中国科学院过程工程研究所 > 研究所（批量导入）

	Phase Diagram for the Na2SO4-NaOH-H2O System and Na2SO4 Solubility in Sodium Aluminate Solution with Caustic Ratios of 12 and 15 at 80 degrees C
	Ding, Aijuan 1,2; Wang, Yuejiao 1; Ma, Shuhua 1; Zheng, Shili 1; Guo, Fen 2
刊名	JOURNAL OF CHEMICAL AND ENGINEERING DATA
	2013-04-01
卷号	58 期号:4 页码:964-968
英文摘要	The phase diagram for the Na2SO4-NaOH-H2O system and solubility data for Na2SO4 in sodium aluminate solution with Na2O to Al2O3 ratios (caustic ratios) of 12 and 15 were studied in the full alkali concentration region at 80 degrees C. The contents of Al and Na in the solution were analyzed by means of inductively coupled atomic plasma emission spectrometry (ICP-OES). The sulfur content was determined using ion chromatography (IC) and the ethylenediaminetetraacetic acid (EDTA) volumetric method. The phases of the equilibrium solids were identified via X-ray diffraction (XRD) as well as Schreinemaker's method. The results showed that the Na2SO4 solubility declines as the concentration of NaOH in the ternary system increases. At a NaOH concentration exceeding 32.96 % (mass percent), the Na2SO4 solubility is lower than 1.13 %. For this system, the corresponding equilibrium solid phase was identified as anhydrous sodium sulfate (Na2SO4) and sodium hydroxide (NaOH) The Na2SO4 solubility in the quaternary system approximates the values obtained in the Na2SO4-NaOH-H2O system. At NaOH concentrations higher than 30.68 % and 30.76 % the Na2SO4 solubility values in the sodium aluminate solution with caustic ratios of 12 and 15 are lower than 1.03 % and 1.05 %, respectively.
WOS标题词	Science & Technology ; Physical Sciences ; Technology
类目[WOS]	Chemistry, Multidisciplinary ; Engineering, Chemical
研究领域[WOS]	Chemistry ; Engineering
关键词[WOS]	HYDROXIDE SOLUTIONS ; WATER
收录类别	SCI
语种	英语
WOS记录号	WOS:000317553600019
公开日期	2015-05-27
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/13490]
专题	过程工程研究所_研究所（批量导入）
作者单位	1.Chinese Acad Sci, Natl Engn Lab Hydromet Cleaner Prod Technol, Key Lab Green Proc & Engn, Inst Proc Engn, Beijing 100190, Peoples R China 2.Beijing Univ Chem Technol, Sch Chem Engn, Beijing 100029, Peoples R China
推荐引用方式 GB/T 7714	Ding, Aijuan,Wang, Yuejiao,Ma, Shuhua,et al. Phase Diagram for the Na2SO4-NaOH-H2O System and Na2SO4 Solubility in Sodium Aluminate Solution with Caustic Ratios of 12 and 15 at 80 degrees C[J]. JOURNAL OF CHEMICAL AND ENGINEERING DATA,2013,58(4):964-968.
APA	Ding, Aijuan,Wang, Yuejiao,Ma, Shuhua,Zheng, Shili,&Guo, Fen.(2013).Phase Diagram for the Na2SO4-NaOH-H2O System and Na2SO4 Solubility in Sodium Aluminate Solution with Caustic Ratios of 12 and 15 at 80 degrees C.JOURNAL OF CHEMICAL AND ENGINEERING DATA,58(4),964-968.
MLA	Ding, Aijuan,et al."Phase Diagram for the Na2SO4-NaOH-H2O System and Na2SO4 Solubility in Sodium Aluminate Solution with Caustic Ratios of 12 and 15 at 80 degrees C".JOURNAL OF CHEMICAL AND ENGINEERING DATA 58.4(2013):964-968.