Separation of solid impurity by melt crystallization of aluminum nitrate nonahydrate

Mizuki Kumashiro, T. Hoshino, Y. Izumi, Y. Fujita, Izumi Hirasawa

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

The effect of melt crystallization on inorganic hydrate for purification of crystals containing liquid and solid impurities was investigated. Melt crystallization is generally applied to purify organic crystals. In the case of inorganic crystals, it is cost-ineffective because of the higher melting point. However, some inorganic crystals, i.e., hydrate crystals, can be applied to melt crystallization because of the lower melting point. Hydrate crystals containing impurities were prepared and melt crystallization was carried out to investigate the purification mechanism on inorganic crystals. Liquid impurity in target crystals was removed by sweating and washing with melt. Solid impurity was also separated with melt flow, supported by mixing operations. It was considered that the purification mechanism is differently dependent on the state of impurity. Melt crystallization is a significant process for improving the purity of crystals. The objective of this study is to investigate the effect of melt crystallization on inorganic hydrate for purification of crystals, including liquid and solid impurity.

Original languageEnglish
Pages (from-to)525-529
Number of pages5
JournalChemical Engineering and Technology
Volume34
Issue number4
DOIs
Publication statusPublished - 2011 Apr

Fingerprint

Crystallization
Nitrates
Impurities
Aluminum
Crystals
Hydrates
Purification
Melting point
aluminum nitrate
Liquids
Washing
Liquid crystals

Keywords

  • Inorganic hydrate
  • Melt crystallization
  • Separation
  • Solid impurity

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Chemistry(all)
  • Industrial and Manufacturing Engineering

Cite this

Separation of solid impurity by melt crystallization of aluminum nitrate nonahydrate. / Kumashiro, Mizuki; Hoshino, T.; Izumi, Y.; Fujita, Y.; Hirasawa, Izumi.

In: Chemical Engineering and Technology, Vol. 34, No. 4, 04.2011, p. 525-529.

Research output: Contribution to journalArticle

@article{8918addf6a7b4b85a5045322cb765928,
title = "Separation of solid impurity by melt crystallization of aluminum nitrate nonahydrate",
abstract = "The effect of melt crystallization on inorganic hydrate for purification of crystals containing liquid and solid impurities was investigated. Melt crystallization is generally applied to purify organic crystals. In the case of inorganic crystals, it is cost-ineffective because of the higher melting point. However, some inorganic crystals, i.e., hydrate crystals, can be applied to melt crystallization because of the lower melting point. Hydrate crystals containing impurities were prepared and melt crystallization was carried out to investigate the purification mechanism on inorganic crystals. Liquid impurity in target crystals was removed by sweating and washing with melt. Solid impurity was also separated with melt flow, supported by mixing operations. It was considered that the purification mechanism is differently dependent on the state of impurity. Melt crystallization is a significant process for improving the purity of crystals. The objective of this study is to investigate the effect of melt crystallization on inorganic hydrate for purification of crystals, including liquid and solid impurity.",
keywords = "Inorganic hydrate, Melt crystallization, Separation, Solid impurity",
author = "Mizuki Kumashiro and T. Hoshino and Y. Izumi and Y. Fujita and Izumi Hirasawa",
year = "2011",
month = "4",
doi = "10.1002/ceat.201000459",
language = "English",
volume = "34",
pages = "525--529",
journal = "Chemical Engineering and Technology",
issn = "0930-7516",
publisher = "Wiley-VCH Verlag",
number = "4",

}

TY - JOUR

T1 - Separation of solid impurity by melt crystallization of aluminum nitrate nonahydrate

AU - Kumashiro, Mizuki

AU - Hoshino, T.

AU - Izumi, Y.

AU - Fujita, Y.

AU - Hirasawa, Izumi

PY - 2011/4

Y1 - 2011/4

N2 - The effect of melt crystallization on inorganic hydrate for purification of crystals containing liquid and solid impurities was investigated. Melt crystallization is generally applied to purify organic crystals. In the case of inorganic crystals, it is cost-ineffective because of the higher melting point. However, some inorganic crystals, i.e., hydrate crystals, can be applied to melt crystallization because of the lower melting point. Hydrate crystals containing impurities were prepared and melt crystallization was carried out to investigate the purification mechanism on inorganic crystals. Liquid impurity in target crystals was removed by sweating and washing with melt. Solid impurity was also separated with melt flow, supported by mixing operations. It was considered that the purification mechanism is differently dependent on the state of impurity. Melt crystallization is a significant process for improving the purity of crystals. The objective of this study is to investigate the effect of melt crystallization on inorganic hydrate for purification of crystals, including liquid and solid impurity.

AB - The effect of melt crystallization on inorganic hydrate for purification of crystals containing liquid and solid impurities was investigated. Melt crystallization is generally applied to purify organic crystals. In the case of inorganic crystals, it is cost-ineffective because of the higher melting point. However, some inorganic crystals, i.e., hydrate crystals, can be applied to melt crystallization because of the lower melting point. Hydrate crystals containing impurities were prepared and melt crystallization was carried out to investigate the purification mechanism on inorganic crystals. Liquid impurity in target crystals was removed by sweating and washing with melt. Solid impurity was also separated with melt flow, supported by mixing operations. It was considered that the purification mechanism is differently dependent on the state of impurity. Melt crystallization is a significant process for improving the purity of crystals. The objective of this study is to investigate the effect of melt crystallization on inorganic hydrate for purification of crystals, including liquid and solid impurity.

KW - Inorganic hydrate

KW - Melt crystallization

KW - Separation

KW - Solid impurity

UR - http://www.scopus.com/inward/record.url?scp=79953066032&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=79953066032&partnerID=8YFLogxK

U2 - 10.1002/ceat.201000459

DO - 10.1002/ceat.201000459

M3 - Article

AN - SCOPUS:79953066032

VL - 34

SP - 525

EP - 529

JO - Chemical Engineering and Technology

JF - Chemical Engineering and Technology

SN - 0930-7516

IS - 4

ER -