Influence of ethylene glycol on CaCO3 particles formation via carbonation in the gas-slurry system

被引：12

作者：

Konopacka-Lyskawa, Donata ^{[1
]}

Lackowski, Marcin ^{[2
]}

机构：

[1] Gdansk Univ Technol, Dept Chem & Proc Engn, Fac Chem, PL-80233 Gdansk, Poland

[2] Polish Acad Sci, Inst Fluid Flow Machinery, PL-80952 Gdansk, Poland

来源：

JOURNAL OF CRYSTAL GROWTH | 2011年 / 321卷 / 01期

关键词：

Crystal morphology; Supersaturated solutions; Growth from solutions; Calcium compounds; LIQUID MASS-TRANSFER; CALCIUM-CARBONATE; FACILE PREPARATION; PRECIPITATION; CRYSTALLIZATION; POLYMORPHISM; ENHANCEMENT; MORPHOLOGY; CA(OH)(2); ADDITIVES;

D O I：

10.1016/j.jcrysgro.2011.02.018

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

Calcium carbonate precipitation was investigated in the gas-slurry system in the reaction of calcium hydroxide and carbon dioxide. The precipitation process was occurred in the presence of ethylene glycol (EG). The used organic additive changed the viscosity of reactive mixture, the solubility of carbon dioxide and the solubility of calcium carbonate which influence CaCO3 precipitation conditions. The course of reaction was monitored by conductivity probe. The increase concentration of ethylene glycol in the reactive mixture caused higher CO2 usage to achieve the end point of reaction. Calcium carbonate was precipitated as calcite and produced CaCO3 particles formed agglomerates in all experiments. The size of obtained CaCO3 particles decreased when the EG concentration increased from 0% to 15% (by vol.). The further increase of EG concentration in solution up to 20% resulted in an increase of the size of CaCO3 particles. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：136 / 141

页数：6

共 33 条

[1] Influence of surface modifiers on the structure of precipitated calcium carbonate [J].

Agnihotri, R ;

Mahuli, SK ;

Chauk, SS ;

Fan, LS .

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 1999, 38 (06) :2283-2291

[2] New technologies for the precipitation of solid particles with controlled properties [J].

Bénet, N ;

Muhr, H ;

Plasari, E ;

Rousseaux, JM .

POWDER TECHNOLOGY, 2002, 128 (2-3) :93-98

[3] Precipitation of carbonates:: recent progress in controlled production of complex shapes [J].

Cölfen, H .

CURRENT OPINION IN COLLOID & INTERFACE SCIENCE, 2003, 8 (01) :23-31

[4] Enhancement of gas-liquid mass transfer by small reactive particles at realistically high mass transfer coefficients:: absorption of sulfur dioxide into aqueous slurries of Ca(OH)2 and Mg(OH)2 particles [J].

Dagaonkar, MV ;

Beenackers, AACM ;

Pangarkar, VG .

CHEMICAL ENGINEERING JOURNAL, 2001, 81 (1-3) :203-212

[5] Polymorphism and morphology of calcium carbonate precipitated in mixed solvents of ethylene glycol and water [J].

Flaten, Ellen Marie ;

Seiersten, Marion ;

Andreassen, Jens-Petter .

JOURNAL OF CRYSTAL GROWTH, 2009, 311 (13) :3533-3538

[6] Morphological characteristics and aggregation of calcite crystals obtained by bubbling CO2 through a Ca(OH)2 suspension in the presence of additives [J].

García-Carmona, J ;

Gómez-Morales, J ;

Fraile-Sainz, J ;

Rodríguez-Clemente, R .

POWDER TECHNOLOGY, 2003, 130 (1-3) :307-315

[7] Analysis of mass transfer in the precipitation process of calcium carbonate using a gas/liquid reaction [J].

Gómez-Díaz, D ;

Navaza, JM ;

Sanjurjo, B .

CHEMICAL ENGINEERING JOURNAL, 2006, 116 (03) :203-209

[8] Effect of ethylene glycol on the CO2/water gas-liquid mass transfer process [J].

Gómez-Díaz, D ;

Navaza, JM .

CHEMICAL ENGINEERING & TECHNOLOGY, 2003, 26 (01) :75-80

[9] DENSITY, VISCOSITY, AND CARBON DIOXIDE SOLUBILITY AND DIFFUSIVITY IN AQUEOUS ETHYLENE GLYCOL SOLUTIONS [J].

HAYDUK, W ;

MALIK, VK .

JOURNAL OF CHEMICAL AND ENGINEERING DATA, 1971, 16 (02) :143-&

[10] CALCIUM-CARBONATE CRYSTALLIZATION, AGGLOMERATION AND FORM DURING CONTINUOUS PRECIPITATION FROM SOLUTION [J].

HOSTOMSKY, J ;

JONES, AG .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 1991, 24 (02) :165-170

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