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Continuous magnesium hydroxide precipitation
Author(s) -
Dobrescu V.,
Păraşcu E.,
Pincovschi E.
Publication year - 1987
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.2170220307
Subject(s) - magnesium , precipitation , stoichiometry , chemistry , ammonia , hydroxide , magnesium nitrate , residence time (fluid dynamics) , inorganic chemistry , nitrate , organic chemistry , physics , geotechnical engineering , meteorology , engineering
The main kinetic parameters of the precipitation process of magnesium hydroxide from magnesium nitrate have been determined. By using gaseous ammonia as precipitation agent in a 20% stoichiometric excess and in a reactor residence period of 30–60 min we determined the total kinetic order of the process, which is 2.67. For a 50 min residence time, we determined the filtration and washing parameters for the magnesium hydroxide obtained from the beginning of the precipitation process till a stationary state was reached.