{"title":"保护碱和pH对含砷金精矿二段焙烧煅烧氰化浸出金的影响","authors":"Kim Yong Min, Cha Su Gyong, Kim Kuk Chol","doi":"10.1134/S1067821224600716","DOIUrl":null,"url":null,"abstract":"<p>The effect of protective alkali and pH on gold extraction in cyanide leaching process of two stage roasting calcine of arsenic bearing gold concentrate was investigated. The results showed that the gold extraction was independent of protective alkali such as caustic soda, sodium carbonate and lime, and the effect of pH on gold extraction was obvious. If the pH of pulp is high, the arsenic concentration of cyanide leaching solution is increased to decrease gold extraction. The effect of arsenic concentration of solution on gold extraction was also investigated. When the leaching solution has no lead ion, the arsenic has no effect on gold extraction, but when the arsenic and lead exist in solution simultaneously, the effect of arsenic on gold extraction is high.</p>","PeriodicalId":765,"journal":{"name":"Russian Journal of Non-Ferrous Metals","volume":"66 2","pages":"101 - 106"},"PeriodicalIF":0.9000,"publicationDate":"2025-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Effect of Protective Alkali and pH on Gold Extraction in Cyanide Leaching Process of Two Stage Roasting Calcine of Arsenic Bearing Gold Concentrate\",\"authors\":\"Kim Yong Min, Cha Su Gyong, Kim Kuk Chol\",\"doi\":\"10.1134/S1067821224600716\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>The effect of protective alkali and pH on gold extraction in cyanide leaching process of two stage roasting calcine of arsenic bearing gold concentrate was investigated. The results showed that the gold extraction was independent of protective alkali such as caustic soda, sodium carbonate and lime, and the effect of pH on gold extraction was obvious. If the pH of pulp is high, the arsenic concentration of cyanide leaching solution is increased to decrease gold extraction. The effect of arsenic concentration of solution on gold extraction was also investigated. When the leaching solution has no lead ion, the arsenic has no effect on gold extraction, but when the arsenic and lead exist in solution simultaneously, the effect of arsenic on gold extraction is high.</p>\",\"PeriodicalId\":765,\"journal\":{\"name\":\"Russian Journal of Non-Ferrous Metals\",\"volume\":\"66 2\",\"pages\":\"101 - 106\"},\"PeriodicalIF\":0.9000,\"publicationDate\":\"2025-08-11\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Russian Journal of Non-Ferrous Metals\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://link.springer.com/article/10.1134/S1067821224600716\",\"RegionNum\":4,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"METALLURGY & METALLURGICAL ENGINEERING\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Russian Journal of Non-Ferrous Metals","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1134/S1067821224600716","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"METALLURGY & METALLURGICAL ENGINEERING","Score":null,"Total":0}
Effect of Protective Alkali and pH on Gold Extraction in Cyanide Leaching Process of Two Stage Roasting Calcine of Arsenic Bearing Gold Concentrate
The effect of protective alkali and pH on gold extraction in cyanide leaching process of two stage roasting calcine of arsenic bearing gold concentrate was investigated. The results showed that the gold extraction was independent of protective alkali such as caustic soda, sodium carbonate and lime, and the effect of pH on gold extraction was obvious. If the pH of pulp is high, the arsenic concentration of cyanide leaching solution is increased to decrease gold extraction. The effect of arsenic concentration of solution on gold extraction was also investigated. When the leaching solution has no lead ion, the arsenic has no effect on gold extraction, but when the arsenic and lead exist in solution simultaneously, the effect of arsenic on gold extraction is high.
期刊介绍：
Russian Journal of Non-Ferrous Metals is a journal the main goal of which is to achieve new knowledge in the following topics: extraction metallurgy, hydro- and pirometallurgy, casting, plastic deformation, metallography and heat treatment, powder metallurgy and composites, self-propagating high-temperature synthesis, surface engineering and advanced protected coatings, environments, and energy capacity in non-ferrous metallurgy.
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