2012 Fiscal Year Final Research Report
Development of continuous precipitation process with crystal forms controlled by ionic strength
| Project/Area Number |
23656488
|
|---|
| Research Category |
Grant-in-Aid for Challenging Exploratory Research
|
| Allocation Type | Multi-year Fund |
|---|
| Research Field |
Properties in chemical engineering process/Transfer operation/Unit operation
|
|---|
| Research Institution | Kyoto University |
|---|
Principal Investigator |
KAWASE Motoaki 京都大学, 大学院・工学研究科, 教授 (60231271)
|
|---|
| Project Period (FY) |
2011 – 2012
|
| Keywords | 晶析 / イオン強度 / シュウ酸カルシウム / 結晶形 / 不安定相 / pH |
|---|
| Research Abstract |
Although fine particles are commonly produced by precipitation or crystallization in the industry , it is still difficult to predict and control the shape, size distribution, and crystal form of the resulting particles. In this study , continuous precipitation of calcium oxalate which exhibits pseudopolymorphism was carried out. Effects of pH and ion strength of the reactant solution were investigated quantitatively and attempted to control the crystal form. How the crystal form of calcium oxalate changes during crystal growth was found.
|
