APPARATUS AND METHOD FOR PURIFYING METHYLAMINE

• Main Authors: KOBAYASHI AKINORI, YAMAUCHI HIROTAKA, KUWANA AKIHIRO
• Format: Patent
• Language: English; Japanese
• Published: 22.08.2016
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; METALLURGY; ORGANIC CHEMISTRY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; THEIR RELEVANT APPARATUS; TRANSPORTING

PROBLEM TO BE SOLVED: To provide an apparatus and a method for purifying methylamine which can remove impurities from crude methylamine containing low boiling point impurities and water as impurities in a simplified method.SOLUTION: There is provided a methylamine purification apparatus 100 in which control means 5 controls discharge operation of low boiling point impurities from crude methylamine in a storage tank 1 by opening a first valve 611 in a state where a second valve 631 and a third valve 641 are closed and controls adsorption and removal operation of moisture in adsorption means 2 after the discharge operation by opening the second valve 631 and the third valve 641 after closing the first valve 611.SELECTED DRAWING: Figure 1 【課題】 低沸点不純物と水とが不純物として含有された粗メチルアミンから、簡単化された方法で、不純物を除去することができるメチルアミン精製装置およびメチルアミン精製方法を提供する。【解決手段】 メチルアミン精製装置１００において、制御手段５は、第２バルブ６３１および第３バルブ６４１を閉鎖させた状態で第１バルブ６１１を開放させることで、貯留タンク１における粗メチルアミンからの低沸点不純物の排出動作の制御を行い、第１バルブ６１１を閉鎖させた後に第２バルブ６３１および第３バルブ６４１を開放させることで、排出動作後の吸着手段２における水分の吸着除去動作の制御を行う。【選択図】 図１