Recrystallization of calcium sulfate in phosphoric acid solutions; batchwise operation

G. J. Witkamp; M. M. Seckler; O. S.L. Bruinsma; G. M. van Rosmalen

doi:10.1016/S0022-0248(08)80092-9

Recrystallization of calcium sulfate in phosphoric acid solutions; batchwise operation

G. J. Witkamp^*, M. M. Seckler, O. S.L. Bruinsma, G. M. van Rosmalen

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

11 Scopus citations

Abstract

A model is presented for the solvent mediated batchwise recrystallization of hemihydrate into dehydrate. The model takes into account the rates of dissolution of hemihydrate and of growth of gypsum. These rates result from the driving forces (under- and supersaturation) that are influenced by temperature and acid concentrations, and from the rate constants, which are mainly affected by impurities. Secondary nucleation can be neglected with respect to the observed recrystallization rates. The presented model can also be applied more generally.

Original language	English (US)
Pages (from-to)	1117-1123
Number of pages	7
Journal	Journal of Crystal Growth
Volume	99
Issue number	1-4
DOIs	https://doi.org/10.1016/S0022-0248(08)80092-9
State	Published - 1990
Externally published	Yes

ASJC Scopus subject areas

Condensed Matter Physics
Inorganic Chemistry
Materials Chemistry

Access to Document

10.1016/S0022-0248(08)80092-9

Cite this

@article{4d7c901791344f2fada05ac1b17962a4,

title = "Recrystallization of calcium sulfate in phosphoric acid solutions; batchwise operation",

abstract = "A model is presented for the solvent mediated batchwise recrystallization of hemihydrate into dehydrate. The model takes into account the rates of dissolution of hemihydrate and of growth of gypsum. These rates result from the driving forces (under- and supersaturation) that are influenced by temperature and acid concentrations, and from the rate constants, which are mainly affected by impurities. Secondary nucleation can be neglected with respect to the observed recrystallization rates. The presented model can also be applied more generally.",

author = "Witkamp, {G. J.} and Seckler, {M. M.} and Bruinsma, {O. S.L.} and {van Rosmalen}, {G. M.}",

year = "1990",

doi = "10.1016/S0022-0248(08)80092-9",

language = "English (US)",

volume = "99",

pages = "1117--1123",

journal = "Journal of Crystal Growth",

issn = "0022-0248",

publisher = "Elsevier B.V.",

number = "1-4",

}

TY - JOUR

T1 - Recrystallization of calcium sulfate in phosphoric acid solutions; batchwise operation

AU - Witkamp, G. J.

AU - Seckler, M. M.

AU - Bruinsma, O. S.L.

AU - van Rosmalen, G. M.

PY - 1990

Y1 - 1990

N2 - A model is presented for the solvent mediated batchwise recrystallization of hemihydrate into dehydrate. The model takes into account the rates of dissolution of hemihydrate and of growth of gypsum. These rates result from the driving forces (under- and supersaturation) that are influenced by temperature and acid concentrations, and from the rate constants, which are mainly affected by impurities. Secondary nucleation can be neglected with respect to the observed recrystallization rates. The presented model can also be applied more generally.

AB - A model is presented for the solvent mediated batchwise recrystallization of hemihydrate into dehydrate. The model takes into account the rates of dissolution of hemihydrate and of growth of gypsum. These rates result from the driving forces (under- and supersaturation) that are influenced by temperature and acid concentrations, and from the rate constants, which are mainly affected by impurities. Secondary nucleation can be neglected with respect to the observed recrystallization rates. The presented model can also be applied more generally.

UR - http://www.scopus.com/inward/record.url?scp=0025208466&partnerID=8YFLogxK

U2 - 10.1016/S0022-0248(08)80092-9

DO - 10.1016/S0022-0248(08)80092-9

M3 - Article

AN - SCOPUS:0025208466

SN - 0022-0248

VL - 99

SP - 1117

EP - 1123

JO - Journal of Crystal Growth

JF - Journal of Crystal Growth

IS - 1-4

ER -

Recrystallization of calcium sulfate in phosphoric acid solutions; batchwise operation

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this