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    • 2. 发明公开
    • 안수 중에 함유된 나프탈렌의 회수방법
    • 在焦炭制造过程中产生的氨水中的萘酚回收方法
    • KR1020080056937A
    • 2008-06-24
    • KR1020060130150
    • 2006-12-19
    • 재단법인 포항산업과학연구원주식회사 포스코
    • 이현
    • B01D11/04B01D3/00B01D9/00C10K1/26
    • A method for recovering naphthalene contained in ammonium liquor is provided to prevent closing of a supply pipe due to the organic component and naphthalene and breakdown of facilities due to closing of the supply pipe by efficiently recovering an organic component and naphthalene contained in ammonia liquor. A method for recovering naphthalene contained in ammonium liquor generated in the coke manufacturing process comprises: a solvent extracting step(A) mixing ammonia liquor with light oil, normal-hexane, or a mixture of the light oil and the normal-hexane, thereby dissolving an organic component contained in ammonia liquor into a solvent to extract the organic component by the solvent; a distilling step(B) of distilling the organic component extracted by the solvent; a crystallizing step(C) of crystallizing the residues by cooling residues that have not been distilled but have been remained in the distilling step; and a filtering and recovering step(D) of recovering naphthalene by filtering a crystal produced in the crystallizing step. Further, the distilling step is performed at a temperature ranged from 60 °C to 100 °C.
    • 提供了一种用于回收铵液中所含萘的方法,以通过有效地回收氨液中所含的有机成分和萘来防止由于有机成分和萘而导致的供给管的封闭以及由于供给管的闭合导致的设备的破坏。 在焦炭制造方法中生成的铵液中所含的萘的回收方法包括:将氨液与轻油,正己烷或轻油与正己烷的混合物混合的溶剂萃取工序(A),由此溶解 将氨液中含有的有机成分加入溶剂中,通过溶剂提取有机成分; 蒸馏由所述溶剂提取的有机成分的蒸馏步骤(B); 通过冷却未蒸馏但已经残留在蒸馏步骤中的残余物使残余物结晶的结晶步骤(C); 以及通过过滤在结晶步骤中产生的晶体来回收萘的过滤和回收步骤(D)。 此外,蒸馏步骤在60℃至100℃的温度下进行。