Batch Cooling Crystallization of an Organic Photochemical with a Low-Speed Intermittent Stirring Technique

Autor:	Kazuaki Iwamoto, Masaru Seki, Yoshiyuki Koiwa
Rok vydání:	2002
Předmět:	Low speed law Chemistry General Chemical Engineering Slurry Centrifugal Filtration General Chemistry Crystallization Photochemistry Filtration law.invention Specific resistance
Zdroj:	JOURNAL OF CHEMICAL ENGINEERING OF JAPAN. 35:1105-1107
ISSN:	1881-1299 0021-9592
DOI:	10.1252/jcej.35.1105
Popis:	An organic photochemical was crystallized in batches-wise both in laboratory and industrial crystallizers. In the laboratory, crystals were produced at different stirring speeds using a 1 L crystallizer, and the centrifugal filtration tests were conducted for the slurries that were obtained slurries. The average specific resistance was reduced much more than expected from the Kozeny-Carmann equation. This suggested that the a change occurred in the channel structure occurred in the cake composed of the crystalline particles that were obtained. Based on the above laboratory tests, batch crystallization with a low-speed intermittent stirring technique was applied for an actual crystallizer. The filtration time was reduced in the actual plant to about 1/10 of that of the previous conventional stirring crystallization.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::3882b6ee6a79228a6d0d9767d9212a82 https://doi.org/10.1252/jcej.35.1105 Zobrazit plný text záznamu