Precipitation of calcium carbonate in a calcium nitrate and monoethanolamine solution

被引：30

作者：

Vucak, M

Peric, J

Krstulovic, R

机构：

[1] Faculty of Technology, University of Split, 21000 Split

来源：

POWDER TECHNOLOGY | 1997年 / 91卷 / 01期

关键词：

precipitation; carbonation;

D O I：

10.1016/S0032-5910(96)03248-2

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

High-purity precipitated calcium carbonate has been produced in the laboratory by carbonation of a solution of calcium nitrate and monoethanolamine. The process was traced by measurements of the change in Ca concentration and in electrical conductivity of the solution. The kappa-t and c(Ca)-t curves were analyzed to determine the effect of temperature and concentration of carbon(IV) oxide on the process of carbonation. The samples obtained were mainly of aragonite and vaterite crystal modifications with traces of calcite. The relationship between the mineralogical composition and particle size (morphology) and operating conditions was examined as well.

引用

页码：69 / 74

页数：6

共 11 条

[1]

BISCHOFF JL, 1969, AM MINERAL, V54, P149

[2]

BOSE TK, 1987, J I ENG CH, V67, P47

[3]

FISCHER HB, 1992, THESIS HOCHSCHULE AR

[4]

FYFE W.S., 1965, DOLOMITIZATION LIMES, V13, P3