PURIFICATION METHOD AND PURIFICATION APPARATUS FOR LIQUID TO BE PROCESSED CONTAINING TETRAALKYLAMMONIUM IONS

• Main Authors: YOKOTA Haruo, TAKADA Noriko, NUKUI Kaoru
• Format: Patent
• Language: English; French; Japanese
• Published: 19.05.2022
• 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; THEIR RELEVANT APPARATUS; TRANSPORTING; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

The present invention provides a purification method for a liquid to be processed, said method reducing the content of metal impurities in a liquid to be processed containing tetraalkylammonium ions, while being capable of suppressing the occurrence of a crack in a resin even in cases where a strong...