REACTOR AND AGITATOR USEFUL IN A PROCESS FOR MAKING 1-CHLORO-3,3,3-TRIFLUOROPROPENE

• Main Author: COTTRELL STEPHEN A
• Format: Patent
• Language: English; Korean
• Published: 13.05.2015
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; METALLURGY; MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING; ORGANIC CHEMISTRY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; THEIR RELEVANT APPARATUS; TRANSPORTING

본 발명에서는, 1,1,1,3,3-펜타클로로프로판(240fa)과 HF의 반응으로부터 1-클로로-3,3,3-트리플루오로프로펜(1233zd)을 제조하기 위한 고압 공정에서 유용한 반응기 및 교반기로서, 상기 교반기는 하기 디자인 개선점: (a) 불활성 배리어 유체(barrier fluid)를 갖는 이중 메카니칼 시일(seal) 또는 단일 시일; (b) 시일의 회전 면(rotating face) 상의 세라믹; (c) 시일의 고정 면(static face) 상의 세라믹; (d) PTFE 웨지(wedge) 또는 동적 O-링(o-ring) 디자인 및 스프링 보강(spring-energized) 테플론으로 제작된 습윤 O-링; 및 (e) 내부식성 합금으로 제작된, 교반기의 습윤 금속 표면 중 하나 이상을 포함하는 것인 반응기 및 교반기가 개시되어 있다. Disclosed is a reactor and agitator useful in a high pressure process for making 1-chloro-3,3,3-trifluoropropene (1233zd) from the reaction of 1,1,1,3,3-pentachloropropane (240fa) and HF, wherein the agitator includes one or more of the following design improvements: (a) double mechanical seals with an inert barrier fluid or a single seal; (b) ceramics on the rotating faces of the seal; (c) ceramics on the static faces of seal; (d) wetted o-rings constructed of spring-energized Teflon and PTFE wedge or dynamic o-ring designs; and (e) wetted metal surfaces of the agitator constructed of a corrosion resistant alloy.