Title: Purification method of sodium sulphate type bittern
Application Number: 87108324 Application Date: 1987.12.30
Publication Number: 1033782 Publication Date: 1989.07.12
Approval Pub. Date: Granted Pub. Date: 1993.04.28
International Classifi-cation: C01D3/16
Applicant(s) Name: Zhonghan Polytechnic Univ. Address:
Inventor(s) Name:
Attorney & Agent: TENG MING LI ZHANMING
Abstract:
     The said method controls the technological conditions of neutralization, adjustment, carbonation and other process, and adds active crystal seeds and flocculant of proper amount, so as to make the well-salt bittern slurry, which contains magnesium hydroxide and calcium carbonate, have excellent sedimentation and filter performance, i.e. the primary sedimentation rate being 5-13.86 cm/m, and the filter factor being 300-670x10 to the power -7 cm/s. It can purify the well-salt bittern effectively and rationally, reduce the energy consumption in salt production greatly, increase the production, and improve the product quality.
Time: 5