担当区分：筆頭著者   掲載種別：研究論文（学術雑誌）   出版者・発行元：Wiley  

DOI： 10.1002/ceat.201100460

Web of Science

researchmap

担当区分：筆頭著者   掲載種別：研究論文（学術雑誌）   出版者・発行元：Wiley  

DOI： 10.1002/ceat.201000495

Web of Science

researchmap

担当区分：筆頭著者   掲載種別：研究論文（学術雑誌）   出版者・発行元：Elsevier BV  

DOI： 10.1016/j.cherd.2009.08.013

Web of Science

researchmap

担当区分：筆頭著者   掲載種別：研究論文（学術雑誌）   出版者・発行元：Elsevier BV  

DOI： 10.1016/j.cherd.2010.01.030

Web of Science

researchmap

担当区分：筆頭著者   記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：Wiley  

Micronized SrSO4 crystals having monodispersed/narrow distributions were produced with a controlled double-jet reactive crystallizer. Polyethylenimine (PEI) had the role of a suitable controller of supersaturation and following crystallization phenomena, and then led to agglomeration-less homogeneous crystalline qualities. Especially, the PEI imines seemed to adjust the number of nucleates, and also physical gel networks seemed to contribute to the inhibition of further particulate agglomeration. The current paper mainly demonstrated the influence of PEI addition on the resulting properties, e.g. sizes and size distribution widths. Therefore the polyelectrolyte-assisted technique will develop as a build-up process contributing to provide high-value nano/micro-powders having the desired crystalline qualities.

DOI： 10.1002/ceat.200900544

Web of Science

researchmap

担当区分：筆頭著者   記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：Wiley  

Precipitation of monodispersed SrSO4 particles was carried out in the presence of polyethylenimine (PEI). PEI additions varied some particulate properties, e.g., sizes, shapes, size distribution widths, and agglomeration ratios. The present paper mainly focuses on the influence of PEI dosage on crystal size distributions. PEI-assisted double jet techniques require no difficult controls of feeding rates, therefore, this idea will be applicable to precipitation of other inorganic compounds for the purpose of producing monodispersed nano-/microparticles.

DOI： 10.1002/ceat.200900545

Web of Science

researchmap

担当区分：筆頭著者   記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：The Society of Chemical Engineers, Japan  

Micronized BaSO₄ particles with a narrow size distribution were produced by using a double-jet reactive crystallizer. Polyethylenimine (PEI) acted as a growth/agglomeration inhibitor at a high PEI dosage, hence the particle size and size distribution width decreased, and BaSO₄ crystals with the desired qualities were obtained. Similar results were obtained in previous studies in which of SrSO₄ and PbSO₄. We believe that our method, which involves the use of PEI, can be employed for the production of various inorganic sulfates in which the particles have a monodisperse size distribution.

DOI： 10.1252/jcej.09we218

Web of Science

CiNii Article

CiNii Books

researchmap

担当区分：筆頭著者   記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：The Society of Chemical Engineers, Japan  

Micron-sized SrSO<SUB>4</SUB> particles having mono-dispersed/narrow distributions have been produced with a double-jet semi-batch reactive crystallizer. Slow molar feedings over a short time maintained proper supersaturation levels and result in narrow distributions due to the prevention of agglomeration growth of small primary precipitates. Furthermore, polyethylenimine (PEI) is a suitable growth/agglomeration inhibitor for sulfate precipitation, e.g., SrSO<SUB>4</SUB> and PbSO<SUB>4</SUB>, and effectively reduced particle sizes leading to single-micron products. Besides feeding conditions, in the present work, the influence of PEI dosage on crystal size distributions (CSDs) is investigated. The controlled double-jet feeding using a polyelectrolyte additive such as PEI will be a powerful methodology to obtain agglomeration-free uniform micro-powders as a final solid product.

DOI： 10.1252/jcej.09we113

Web of Science

CiNii Article

CiNii Books

researchmap

担当区分：筆頭著者   記述言語：英語   掲載種別：研究論文（学術雑誌）   出版者・発行元：The Society of Chemical Engineers, Japan  

A controlled double-jet reactive crystallization technique using a PEI (polyethylenimine) additive has been conducted to produce agglomeration-free micro-particles of SrSO<SUB>4</SUB> with narrow and mono-dispersed size distributions. PEI successfully inhibits rapid/continuous nucleation due to a complexation with strontium ions before nucleation occurs, and enables realization of perfect separation of nucleation and growth. Our idea to obtain fine particles with desired size distributions will introduce a new potential for contributing to enhance high-valued material properties.

DOI： 10.1252/jcej.09we112

Web of Science

CiNii Article

CiNii Books

researchmap

掲載種別：研究論文（学術雑誌）   出版者・発行元：Wiley  

DOI： 10.1002/ceat.200500355

Web of Science

researchmap

総ページ数：634p   記述言語：日本語

CiNii Books

researchmap

総ページ数：vi, 208p   記述言語：日本語

CiNii Books

researchmap

記述言語：日本語 著書種別：学術書

researchmap

記述言語：日本語   出版者・発行元：硫酸協会  

CiNii Article

CiNii Books

researchmap

記述言語：日本語   出版者・発行元：硫酸協会  

CiNii Article

CiNii Books

researchmap

記述言語：日本語   掲載種別：記事・総説・解説・論説等（その他）   出版者・発行元：色材協会  

DOI： 10.4011/shikizai.81.161

CiNii Article

CiNii Books

researchmap

記述言語：日本語   掲載種別：記事・総説・解説・論説等（商業誌、新聞、ウェブメディア）   出版者・発行元：化学工業社  

CiNii Article

CiNii Books

researchmap