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Organic Low-Molecular-Weight Compounds And Preparation Thereof
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Abstract
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이산화 망간의 제조방법Method of manufacturing manganese dioxide
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.
Claims (4)
아연 제련시 부생하는 아산화 망간 슬라임을 수세한 후,After washing with nitrous oxide manganese slime produced by smelting zinc,가) 질산 및 그 염을 첨가한 수용액으로 처리하여 Pb 불순물을 분리하고,A) treatment with an aqueous solution to which nitric acid and its salts are added to separate Pb impurities;나) 염산 및 그 염을 첨가한 수용액으로 처리하여 Ag 등을 분리한 후,B) separating Ag and the like by treating with hydrochloric acid and an aqueous solution to which the salt is added,다) 이를 오존 산화하여 미분해된 Pb 및 Ag등과 미산화된 망간을 완전 산화시킨 후,C) Ozone oxidation to completely oxidize undecomposed Pb and Ag and unoxidized manganese.라) 이를 고온에서 건조 분해시키는 단계로 구성됨을 특징으로 하는 이산화 망간의 제조방법.D) a method for producing manganese dioxide, characterized by comprising the step of dry decomposition at high temperature.제1항의 가)에 있어서 소량의 황산이 혼입된 혼산을 사용함을 특징으로 하는 방법.The method according to claim 1, wherein a mixed acid containing a small amount of sulfuric acid is used.제1항의 나)에 있어서 반응 온도가 80~90℃이고 반응 시간이 5~7시간인 것이 특징인 방법.The method according to claim 1, wherein the reaction temperature is 80 to 90 ° C and the reaction time is 5 to 7 hours.제1항의 라)에 있어서 건조 시키는 온도가 200~300℃인 것이 특징인 방법.The method according to claim 1, wherein the drying temperature is 200 to 300 ° C.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR820000708A1982-02-181982-02-18Method of purification of mn o2
KR840000321B1
(en)