Abstract
It has been said that the boron contained in sea water, brine and bittern is absorbed into magnesium hydroxide. So, in this paper, the absorption process was investigated to find effective factors. The experimental results were as follows:
1) The quantity of boron absorbed into magnesium hydroxide in the same addition ratio agreed with Freundlich's absorption isotherm.
2) The substance obtained by the reaction between Mg++ and alkali absorbed boron more efficiently than magnesium hydroxide added straight to boron contained solution.
3) when natural sea water, brine and bittern were treated with milk of lime, the pH value had a remarkable effect on the absorption, while the difference in boron contents in sea water, brine and bittern had no such effect.
