CRYSTALLIZER FOR PRODUCING PHENOLIC COMPOUND OR THE LIKE

摘要

PURPOSE:To provide the subject crystallizer capable of preventing worn powder from contamination into and foreign substances from dissolution into a liquor to be treated, thus enabling high-quality phenolic compound or bisphenol compound to be produced smoothly and assuredly. CONSTITUTION:Ultrahigh molecular weight polyethylene is used for the scraping edge 23 of a scraper 20 to come into contact with the heat transfer surface of a crystallizer body; thereby, worn powder from the scraping edge 23 is prevented from contaminating into a liquor to be treated and the components of the scraping edge 23 from dissolving into the liquor.