Study of the neutralization rate in a coagulation particle made by the seed coagulation method from polymer latex.
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- Furukawa Naoki
- Engineering Research Lab. Kanegafuchi Chem. Ind. Ltd.
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- Okada Wataru
- Engineering Research Lab. Kanegafuchi Chem. Ind. Ltd.
Bibliographic Information
- Other Title
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- 高分子ラテックス凝固粒子中の中和反応速度
- コウブンシ ラテックス ギョウコ リュウシチュウ ノ チュウワ ハンノウ ソク
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Description
The neutralization rate of fatty acid to calcium fatty acid in a coagulation particle using calcium hydroxide solution was studied. The coagulation particles were made by the seed coagulation method, using hydrochloric acid solution as the coagulant.<BR>The following results were obtained.<BR>(1) A model of the neutralization rate in a particle was proposed, based upon the unreacted core model in which the rate-controlling step was the diffusion of the hydroxyl ion in a particle.<BR>(2) To design the neutralization reactor, relation between the conversion X [-] and time t [s] can be simulated when the hydroxyl ion diffusion coefficient D [m2·s-1] is obtained in neutralizing experiments, using the following equation provided that the model density of fatty acid ρ [mol·kg-1], radius of particle R [m] and neutralizing condition pOH are given.<BR>t=ρR2· {3-3 (1-X) 2/3-2X} /6·10POH·D<BR>In this study, the hydroxyl ion diffusion coefficient D was 2.91×10-8 m2·s-1 at 358 K.
Journal
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- KAGAKU KOGAKU RONBUNSHU
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KAGAKU KOGAKU RONBUNSHU 17 (1), 9-14, 1991
The Society of Chemical Engineers, Japan
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Keywords
Details 詳細情報について
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- CRID
- 1390001204509292288
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- NII Article ID
- 130000871127
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- NII Book ID
- AN00037234
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- ISSN
- 13499203
- 0386216X
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- NDL BIB ID
- 3705394
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL Search
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed