PRODUCTION OF INORGANIC ANTIMICROBIAL AGENT HAVING HIGH ANTIBACTERIAL POTENCY SUITABLE FOR MANUFACTURE OF ANTIMICROBIAL RESIN AS WELL AS IMPROVED COLOR AND LOW TOXICITY BY TREATING WASTE SUPPORTED SILVER CATALYST

• Main Authors: YOON, DAE YEONG, LEE, CHANG YEOL, LEE, BOK HUI, KWON, O JUN
• Format: Patent
• Language: English; Korean
• Published: 25.08.2004
• Edition: 7
• Subjects: ADHESIVES; AGRICULTURE; ANIMAL HUSBANDRY; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES, AS HERBICIDES; CHEMISTRY; COMPOSITIONS BASED THEREON; DYES; FISHING; FORESTRY; HUMAN NECESSITIES; HUNTING; MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS; POLISHES; PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTSTHEREOF; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRAPPING; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

PURPOSE: Provided is a method of making an inorganic antimicrobial agent by treating a waste supported silver catalyst, wherein the silver is supported on porous alumina, in three stages including a chlorination reaction, calcination, grinding and classification. The product has high antibacterial potency suitable for the manufacture of antimicrobial resin as well as improved color and low toxicity. CONSTITUTION: A waste supported silver catalyst, wherein the silver is supported on porous alumina for production of ethylene oxide is treated in three stages including a negative ion introduction reaction, calcination, grinding and classification to produce an inorganic antimicrobial agent. In the negative ion introduction reaction, the waste supported silver catalyst and negative ion are introduced into a reactor and then reacted at 0 to 50deg.C at 1 to 10atm. The calcination is performed at 100 to 300deg.C for 1 to 3hr in air, the classification is achieved by grinding the catalyst and separating particles having an average particle size of 0.05 to 20μm. The negative ion is one or more selected from chlorine, nitrogen, phosphoric acid, hydrogen oxide, ammonium, amine or organic acid groups. 본 발명은 산화에틸렌 제조용 은담지촉매 폐기물을 세균 및 곰팡이에 효과가 좋고 안정성이 확보된(독성이 없는) 무기계 항균제로 재처리하는 방법을 제안하는 것으로, 촉매 폐기물이 가지는 항균력, 색상, 안정성(독성)을 개선하기 위하여 염소화 반응, 소성, 분쇄 및 분급의 세단계의 처리에 의하여 항균력, 백색도가 개선된 저독성의 무기항균제를 제조한다.