CRYSTALLIZATION OF METAL SULFATE BY USE OF WATER MISCIBLE ORGANIC SOLVENT
使用水混溶性有机溶剂结晶金属硫酸盐
基本信息
- 批准号:60850122
- 负责人:
- 金额:$ 6.4万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Developmental Scientific Research
- 财政年份:1985
- 资助国家:日本
- 起止时间:1985 至 1987
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
THE PHASE RELATIONS AND SOLUBILITY ISOTHERMS HAVE BEEN DETERMINED FOR THE SYSTEMS : METAL SULFATE(S)-WATER-ORGANIC SOLVENT. THE POSSIBILITY OF CRYSTALLIZATION METHOD USIMG ORGANIC SOLVENT WAS CONSIDERD ON THE BASE OF RESULTS. IN THE SYSTEM MSO_4-H_2O-C_2H_5OH(M=Zn,Ni,Co,Cd,Cu), SOLUBILITY OF SULFATES DECREASED MEMARKABLLY WITH INCREASING CONCENTRATION OF ALCOHOL. EMPIRICAL FORMULAS WERE DETERMINED FOR THE SOLUBILITY OF THESE SULFATES IN WATER-ETHANOL MIXTURES IN THE TEMERATURE RANGE OF 278 TO 308K. AQUEUS-ALCOHOL MIXTURES WITH THESE SULFATES ARE LIABLE TO SEPARATE INTO TWO LIQUID LAYERS. DIFFERENCE IN SALTING OUT EFFECT OF CATION WERE DISCUSSED.SOLVENT EFFECTS WERE EXAMINED WITH THE SYSTEMS ZINC SULFATE OT COPPER SULFATEWATER-ORGANIC SOLVENT AT 298K; USED ORGANIC SOLVENTS WERE METHANOL, 2-PRORANOL, T.-BUTANOL AND ACTONE. DEPENDENCE OF THE SULFATE SOLUBILITY ON THE DIELECTRIC CONSTANT OF THE MIXED SOLLVENT EXHIBITS DELICATE VARIATIONS BY THE COSOLVENT AND ITS COMPOSITION.SOLUBILITY ISOTHERMS FOR THE MIXEd SULFATES of CuSO_4-NiSO_4 O R CoSO_4 IN AQUEOUS ETHANOL MIXTURES AT 298K, AND Na_2SO_4-NiSO_4 OR CoSO_4 IN AQUEOUS-METHANOL MIXTURES WERE DETERMINED. THE ISOTHERMS OF CuSO_4-NiSO_4 OR CoSO_4 SOLUTION SYSTEM CAN BE DEVIDED INTO 2 PORTIONS CORRESPONDING TO CRYSTALLIZATION OF COPPER SULFATE AND NICKEL SULFATE, OR SOLID SOLUTION OF (Co,Cu)SO_4,7H_2O. ON THE OTHER HAND, ISOTHERMS FOR THE MIXED SULFATE SYSTEMS OF Na_2SO_4-NiSO_4 OR CoSO4, ARE MADE UP OF 3 PORTIONS WITH TWO EUTECTIC POINTS ; SOLID PHASES IN EQULIBRIUM WITH THE SOLUTION IN EACH PORTIONS ARE SODIUM SULFATE, NICKEL SULFATE OF COBALT SULFATE, AND THEIR DOUBLE SALT. COMPOSITION RANGE OF THE SOLUTION CORRESPONDING TO THE DOUBLE SALT ARE SENSITIVE TO TEMPERATURE. A POSSIBLE APPLICATION TO A PRACTICAL PROCESS WAS TESTED WITH A COPPER SPENT ELECTROLYTE.RESULTS OBTAINED SUGGEST THAT THE CRYSTALLIZATION METHOD USING ORGANIC SOLVENT MIGHT BE WELL APPLICABLE TO PRACTICAL PROCESSES.
已经确定了针对系统的相位关系和溶解度等温度:金属硫酸盐 - 水 - 有机溶剂。结晶方法USIMG有机溶剂的可能性在结果的基础上考虑了。在系统中,MSO_4-H_2O-C_2H_5OH(M = Zn,Ni,Co,Cd,Cu),硫酸盐的溶解度随着酒精浓度的增加而透明地降低。确定这些硫酸盐在278至308K的诱变范围内这些硫酸盐在水 - 乙醇混合物中的溶解度。与这些硫酸盐的酒精混合物可分为两个液体层。讨论了阳离子的腌制作用的差异。通过硫酸盐锌OT硫酸盐硫酸盐硫酸盐 - 硫酸盐 - 有机溶剂进行了298K的含量。使用的有机溶剂是甲醇,2-丙醇,丁醇和侵蚀剂。 DEPENDENCE OF THE SULFATE SOLUBILITY ON THE DIELECTRIC CONSTANT OF THE MIXED SOLLVENT EXHIBITS DELICATE VARIATIONS BY THE COSOLVENT AND ITS COMPOSITION.SOLUBILITY ISOTHERMS FOR THE MIXEd SULFATES of CuSO_4-NiSO_4 O R CoSO_4 IN AQUEOUS ETHANOL MIXTURES AT 298K, AND Na_2SO_4-NiSO_4 OR CoSO_4 IN AQUEOUS-METHANOL MIXTURES WERE DETERMINED. CUSO_4-NISO_4或COSO_4解决方案系统的等温线可以分为与硫酸铜和硫酸盐结晶相对应的2部分,或(CO,CU)SO_4,7H__2O的实心溶液。另一方面,Na_2SO_4-niso_4或coso4混合硫酸盐系统的等温线由3个部分组成,有两个共晶。在每个部分中,溶液中的固体相位是硫酸钠,硫酸钴的镍硫酸钠及其双盐。对应于双盐的溶液的组成范围对温度敏感。使用铜的电解质测试了实用过程的可能应用。获得的结果表明,使用有机溶剂的结晶方法可能非常适用于实际过程。
项目成果
期刊论文数量(24)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Shigeru OKADA: 1st International Confereuce on Hydrometallurgy. (1988)
冈田茂:第一届国际湿法冶金会议。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
SHIGERU, OKADA: "SELECTIVE CRYSTALLIZATION FROM MIXED AQUEOUS SOLUTION BY USE OF ALCOHOL" 1ST INTERN.CONGR. ON HYDROMETALL, BEIJING. (1988)
SHIGERU, OKADA:“使用酒精从混合水溶液中选择性结晶”第一届实习生大会。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
SHIGERU, OKADA: "PHASE EQUILIBRIA IN THE TERNARY SYSTEMS OF ZINC OR COPPER SULFATE-WATER-ORGANIC SOLVENT" METALL. REV. MMIJ.3. 48-60 (1986)
SHIGERU, OKADA:“硫酸锌或硫酸铜-水-有机溶剂三元体系中的相平衡”金属。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
MOTONORI, EGUCHI: "PHASE RELATION AND SOLUBILITY ISOTHERM IN THE SYSTEM ZnSO_4-H_2O-C_2H_5OH" METALL. REV. MMIJ.2. 19-34 (1985)
MOTONORI、EGUCHI:“ZnSO_4-H_2O-C_2H_5OH 系统中的相关系和溶解度等温线”金属。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
岡田茂,矢澤彬: 日本鉱業会誌. 102. 597-601 (1986)
Shigeru Okada、Akira Yazawa:日本矿业协会杂志 102. 597-601 (1986)。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
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