TREATMENT OF WASTE SOLUTIONS BY USE OF ORGANICLIQUIDS PARTIALLY MISCIBLE WITH WATER.

使用与水部分混溶的有机液体处理废物溶液。

基本信息

批准号：
61550462
负责人：
OKADA Shigeru
金额：
$ 1.15万
依托单位：
TOHOKU UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (C)
财政年份：
1986
资助国家：
日本
起止时间：
1986 至 1988
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-61550462/
关键词：
Treatment of Waste Solution Water-Organic Liquid Salting out Effect Solvent Effect Mutual Solubility Two Liquids Separation 温排水利用混合溶媒有機液体-水系 2液分離晶析濃縮分離有機液体

项目摘要

SOLUBILITY OF SALTS CAN BE DECREASED IN AQUEOUS ORGANIC LIQUID MIXTURES COMPARED WITH WATER. AND ALSO, MUTUAL SOLUBILITY OF THE MIXTURES VARIES WITH TEMPERATURE OR WITH ADDITION OF SALT. UTILIZATION OF SOLUBILITY CHARACTERISTICS IN THE SALT-WATER-ORGANIC LIQUID SYSTEM TO THE TREATMENT OF WASTE SOLUTIONS WAS EXAMINED WITH A SERIES OF ORGANIC LIQUIDS WHICH ARE TEA(TRIETHYL AMINE), DIPA(DIISO-PROPYL AMINE), TBPO(TRYBUTYL PHOSPHIN OXIDE), TMP(TRIMETYL PHOSPHATE), TEP (TRYETHYL PHOSPHATE), TBP(TRIBUTHYL PHOSPHATE), EGBE(ETHYLENE GLYCOL BUTYL ETHER), DEGHE(DIETHYLENEGLYCOL HEXYL ETHER) AND DEGHE(DIETHYLENE GLYCOL HEXYL ETHER).MUTUAL SOLUBILITIES OF THE WATER-ORGANIC LIQUID SYSTEMS WERE DETERMINED IN THE TEMPERATURE RANGE OF 278K TO 333K. AQUEOUS SOLUTIONS OF TEA, DIPA, TBPO, EGBE AND/OR DEGHE HAVE THE LOWER CRITICAL SOLUTION TEMPERATURE RESPECTIVELY.SALT EFFECTS ON THE MUTUAL SOLUBILITY OF THE SOLVENT MIXTURE, AND SOLVENT EFFECTS ON SOLUBILITY OF SALTS WERE DISCUSSED. THE SOLUBILITY OF THE O … More RGANIC LIQUIDS TESTED IN THE AQUEOUS SULFATE SOLUTIONS CAN BE EXPRESSED BY THE SEMIEMPIRICAL SETCHENOV SALTING EQUATION, AND THE SALTING COEFFICIENT DEPENDING ON THE NATURE OF SALT AND TEMPERATURE WAS CORRELATED WITH GIBBS FREE ENERGY OF AQUO-CATION FORMATION. LARGE SALTING OUT EFFECTS WERE OBSERVED IN THE TERNARY SYSTEMS METAL SULFATE-WATER-ORGANIC LIQUID ; THE MISCIBILITY GAP INCREASES WITH INCREASE IN TEMPERATURE AND CONCENTRATION OF SALT. IN TWO-LIQUID REGION, SULFATES ARE CONCENTRATED INTO AQUEOUS PHASE AND ORGANIC RICH PHASES CONTAINE SMALL AMOUNTS OF SALT. WHILE IN HOMOGENEOUS SOLUTION REGION, SOLUBILITY OF THE SALTS DECREASES WITH INCREASE IN CONCENTRATION OF THE ORGANIC LIQUID. THUS, THE ORGANIC LIQUIDS TESTED WERE EFFECTIVE FOR CONCENTRATION OR SEPARATION OF THE SULFATES INTO THE AQUEOUS PHASE OR FROM THE AQUEOUS SOLUTION.RECOVERY OF THE ORGANIC LIQUID FROM AQUEOUS SOLUTION CAN BE DONE BY WARMING THE SOLUTION TO THE TEMPERATURE AROUND 333K, OR BY UTILIZING SALTING OUT EFFECT AND/OR EXTRACTION WITH TBP. Less

与水相比，在水性有机液体混合物中可以降低盐的溶解度。而且，混合物的相互溶解度随温度或添加盐而变化。用一系列有机液体（包括茶（三甲基胺），diiso--氨基胺），TBPO（Trybutyl磷酸氧化物），TMP（TMP（TROPHATE），TMPA（Trimetyl phosphate）（Trosphate）（Trosphate）（Trosphate）（Trosphate）（Trosphate phosphate phosphate phosphate phosphate phosphate phosphate），使用一系列有机液体（三甲基胺），TBPO（Trosphate phosphate phosphate apphate phosphate）检查了盐水有机液体系统中溶解度的溶解度特性的利用。 EGBE（乙二醇丁基醚），Deghe（二乙二醇己基醚）和DegHE（二乙二醇乙二醇己基乙醚）。在温度范围为278K至333,33,33K的温度范围内，测定了水液体系统的溶解度。茶，DIPA，TBPO，EGBE和/或DEGHE的水溶液分别具有较低的临界溶液温度。盐对溶剂混合物的相互溶解度的影响，讨论了对盐溶解度的溶剂作用。 O…在硫酸盐水溶液中测试的更多的液体的溶解度可以通过半经验的Setchenov盐盐方程表示，并且根据盐和温度的性质，腌制系数与Aquo-cation形成的Gibbs自由能相关。在三元系统金属硫酸盐 - 水有机液体中观察到大盐效应。与盐温度和浓度的升高随着盐的升高而增加。在两个液体区域中，硫酸盐浓缩到水相中，有机富相含有少量盐。在同质溶液区域中，盐的溶解度随着有机液体浓度的增加而降低。因此，所测试的有机液体可有效地将硫酸盐浓度或分离为水相或水溶液中。从水溶液中回收有机液体，可以通过将溶液加热到333K左右的温度，或利用盐溶液在333K左右的温度加热。较少的