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Tailor‐made additives to influence the habit of barite (BaSO 4 ) obtained by precipitation
Author(s) -
Kipp Stephan,
Lacmann Rolf,
Reichelt Michael,
Schröder Wolfgang
Publication year - 1996
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.270190612
Subject(s) - crystal habit , precipitation , crystallization , crystal growth , chemical engineering , crystal (programming language) , sulfonic acid , chemistry , materials science , kinetics , stabilizer (aeronautics) , crystallography , organic chemistry , quantum mechanics , mechanical engineering , programming language , physics , meteorology , computer science , engineering
In order to influence the habit of barite (BaSO 4 ) single crystals obtained by precipitation, the tailor‐made additives 2‐aminomethanol, 3‐aminoproponal, 5‐aminopentanol, 4‐aminobutane sulfonic acid, and several other growth inhibitors have been tested. The crystallization experiments have been carried out in a fully automated crystallizer with reproducible educt feed rates. The kinetics of the reaction has been measured by means of the conductivity. Scanning electron microscopic analysis of the obtained crystal habits led to the raesult that most of the additives tested did not influence the growth form of the crystals, but the predicted, tailor‐made additives resulted in a more isometric crystal form.