Method for extracting valuable metallic tin component from antimony and tin smelting alkaline residues through water leaching neutralized tin settlement

• Main Authors: SONG ZUXIN, ZUO LIANGCAI
• Format: Patent
• Language: Chinese; English
• Published: 21.12.2016
• Subjects: CHEMISTRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; FERROUS OR NON-FERROUS ALLOYS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; METALLURGY; 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; TREATMENT OF ALLOYS OR NON-FERROUS METALS

The invention provides a method for extracting a valuable metallic tin component from antimony and tin smelting alkaline residues through water leaching neutralized tin settlement. The method is realized by any of the following steps (1), (2) and (3): (1), independently extracting the tin component in an alkaline leaching solution;(2), independently extracting the tin component in an acid leaching solution; and (3), mixing the alkaline leaching solution and the acid leaching solution so as to regulate the PH to be neutral, namely 6-7, and settling the tin component. The method has the advantages that the technical process is short, the equipment is simple, the cost is low, ball-milling water leaching is carried out at a room temperature under a normal pressure, the operation is safe, no pollution is caused to the environment, the tin leaching rate is higher than 99.7%, and national ore resources are effectively recycled and utilized. 种从炼锑、炼锡碱渣中采用水浸中和沉锡提取有价金属锡组份的方法，该方法包括下述(1)或(2)或(3)中的任种来实现：(1)碱浸液中单独提取锡组份；⑵酸浸液