Influence of different admixtures on the crystallization of calcium sulfate crystals

被引：2
作者：
Al-Sabbagh, A [1 ]
Widua, J [1 ]
Offermann, H [1 ]
机构：
[1] Rhein Westfal TH Aachen, Inst Verfahrenstech, D-52056 Aachen, Germany
来源：
CHEMICAL ENGINEERING COMMUNICATIONS | 1996年 / 154卷
关键词：
additives; foaming; crystallization; calcium sulfate; admixtures; crystal modification;
D O I：
10.1080/00986449608936649
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
In the present study several defoaming agents were investigated in a batch-crystallizer with respect to their effectiveness on habit modification and filterability of gypsum crystals. The application of some agents in an horizontal tube falling film evaporator is discussed. Furthermore, the recrystallization kinetics of gypsum to anhydrite in the presence of sodium chloride at 95 degrees C are presented.
引用
收藏
页码：133 / 145
页数：13
相关论文
共 50 条
  • [31] Effect of EDTA on the morphologies and mechanical properties of hydrothermally prepared calcium sulfate hemihydrate crystals
    Qiu, Chunlong
    Sun, Yuzhu
    Lei, Xiaohu
    Song, Xingfu
    [J]. CHEMICAL ENGINEERING SCIENCE, 2025, 305
  • [32] Crystallization Process of Calcium Sulfate Dihydrate in Gypsum Type Brine System
    CHENG Penggao
    ZHANG Lei
    XIANG Jun
    TANG Na
    WANG Xuekui
    [J]. Acta Geologica Sinica(English Edition), 2014, (S1) : 301 - 303
  • [33] Crystallization of calcium oxalate monohydrate at dipalmitoylphosphatidylcholine monolayers in the presence of chondroitin sulfate A
    Ouyang, HM
    Deng, SP
    Zhong, JP
    Tieke, B
    Yu, SH
    [J]. JOURNAL OF CRYSTAL GROWTH, 2004, 270 (3-4) : 646 - 654
  • [34] Crystallization fouling of calcium sulfate dihydrate on heat-transfer surfaces
    Mori, H
    Nakamura, M
    Toyama, S
    [J]. JOURNAL OF CHEMICAL ENGINEERING OF JAPAN, 1996, 29 (01) : 166 - 173
  • [35] Study on crystallization of calcium carbonate from calcium sulfate and ammonium carbonate in the presence of magnesium ions
    Zhao, Jingcai
    Song, Xingfu
    Sun, Yuzhu
    Chen, Bo
    Yu, Jianguo
    [J]. CRYSTAL RESEARCH AND TECHNOLOGY, 2015, 50 (04) : 277 - 283
  • [36] Calorimetric study on the influence of calcium sulfate on the hydration of Portland cement-calcium aluminate cement mixtures
    Xu, Linglin
    Wang, Peiming
    Zhang, Guofang
    [J]. JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY, 2012, 110 (02) : 725 - 731
  • [37] Morphology of Monosaturated Triacylglycerol Crystals in Different Crystallization Procedures
    Takeguchi, Seiya
    Hondoh, Hironori
    Satoh, Arisa
    Aoki, Mio
    Uehara, Hidetaka
    Ueno, Satoru
    [J]. JOURNAL OF THE JAPANESE SOCIETY FOR FOOD SCIENCE AND TECHNOLOGY-NIPPON SHOKUHIN KAGAKU KOGAKU KAISHI, 2019, 66 (12): : 451 - 458
  • [38] Influence of α-calcium sulfate hemihydrate particle characteristics on the performance of calcium sulfate-based medical materials
    Tang, Mingliang
    Shen, Xiaodong
    Huang, Hong
    [J]. MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS, 2010, 30 (08): : 1107 - 1111
  • [39] Nucleation kinetics of the formation of low dimensional calcium sulfate dihydrate crystals in isopropyl alcohol medium
    Sandhya, S.
    Sureshbabu, S.
    Varma, H. K.
    Komath, Manoj
    [J]. CRYSTAL RESEARCH AND TECHNOLOGY, 2012, 47 (07) : 780 - 792
  • [40] MACROATTRITION OF NEEDLE-SHAPED OR ROD-SHAPED CALCIUM-SULFATE CRYSTALS BY AGITATION
    YAGI, H
    MIYAJIMA, C
    ISHIKAWA, M
    [J]. KAGAKU KOGAKU RONBUNSHU, 1990, 16 (05) : 977 - 981
12345