{"title":"Precipitation of titania in a continuous-flow reactor with an organic base stabilizer","authors":"Paul Nahass, H.K. Bowen","doi":"10.1016/0025-5416(88)90261-3","DOIUrl":null,"url":null,"abstract":"<div><p>Narrow-size-distribution, non-agglomerated TiO<sub>2</sub> powder was precipitated on a large scale within a continuous-flow reactor from high concentrations of titanium tetraethoxide (Ti(OEt)<sub>4</sub>) and water in ethanol. A plug-flow reactor with static mixers enabled continuous TiO<sub>2</sub> production of 60 g h<sup>−1</sup> over a period of 8 h from 0.25 M alkoxide and 1.0 M water. The organic base triethylamine was added as a stabilizer to the alkoxide stream prior to synthesis. The resultant powder had an average particle diameter of 0.37 μm with about 85% singlets and a standard deviation in particle size of 16%.</p></div>","PeriodicalId":100890,"journal":{"name":"Materials Science and Engineering","volume":null,"pages":null},"PeriodicalIF":0.0000,"publicationDate":"1988-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1016/0025-5416(88)90261-3","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Materials Science and Engineering","FirstCategoryId":"1085","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/0025541688902613","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 2
Abstract
Narrow-size-distribution, non-agglomerated TiO2 powder was precipitated on a large scale within a continuous-flow reactor from high concentrations of titanium tetraethoxide (Ti(OEt)4) and water in ethanol. A plug-flow reactor with static mixers enabled continuous TiO2 production of 60 g h−1 over a period of 8 h from 0.25 M alkoxide and 1.0 M water. The organic base triethylamine was added as a stabilizer to the alkoxide stream prior to synthesis. The resultant powder had an average particle diameter of 0.37 μm with about 85% singlets and a standard deviation in particle size of 16%.
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