种螯合树脂从阴沟泥中回收银离子的方法

• Format: Patent
• Language: Chinese
• Published: 25.08.2017
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; COMPOSITIONS BASED THEREON; FERROUS OR NON-FERROUS ALLOYS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PRETREATMENT OF RAW MATERIALS; PRODUCTION AND REFINING OF METALS; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; THEIR PREPARATION OR CHEMICAL WORKING-UP; THEIR RELEVANT APPARATUS; TRANSPORTING; TREATMENT OF ALLOYS OR NON-FERROUS METALS

本发明公开了种螯合树脂从阴沟泥中回收银离子的方法。该螯合树脂的合成方法包括以下步骤：1)、将氯球浸泡在作为反应溶剂的N,N-二甲基酰胺中，直至氯球充分溶胀；2)、在步骤1)的所得物中加入作为配体的2-氨基-6-甲基吡啶以及作为催化剂的钠，在氮气保护的条件下于80℃下搅拌反应10小时；所述2-氨基-4-甲基吡啶与氯球中的-CHCl的物质的量之比为4：1；3)、过滤步骤2)的所得物，得滤饼；先将滤饼用反应溶剂浸泡洗涤至洗涤液为无色，然后用蒸馏水洗涤，再依次用无水乙醇、丙酮、乙醚和蒸馏水洗涤数次，50℃真空干燥，得到新型螯合树脂。本发明具有对阴沟泥中银离子选择性吸附、吸附性能好、可重复利用等特点。