{"id":5193,"date":"2015-03-25T05:19:48","date_gmt":"2015-03-24T21:19:48","guid":{"rendered":"https:\/\/www.curtin.edu.au\/news\/edible-acid-provides-green-alternative\/"},"modified":"2024-08-23T13:03:29","modified_gmt":"2024-08-23T05:03:29","slug":"edible-acid-provides-green-alternative","status":"publish","type":"post","link":"https:\/\/www.curtin.edu.au\/news\/edible-acid-provides-green-alternative\/","title":{"rendered":"Edible acid provides green alternative"},"content":{"rendered":"<p>Curtin University\u2019s Gold Technology Group (GTG) has discovered a green alternative to the toxic systems currently used to leach precious metals from their ores. Glycine, an edible and environmentally benign amino acid, has been effectively used in the leaching process for gold, silver and copper.<\/p>\n<p>\u201cGlycine is benign in the safety, health and environmental sense,\u201d Curtin University Chair of Extractive Metallurgy Professor Jacques Eksteen said.<\/p>\n<p>Glycine can also be recycled after leaching. When used to leach precious metals, glycine binds with metal ions, forming a soluble complex. This complex is then passed over activated carbon, concentrating the gold in a step as efficient as the current cyanide-based process.<\/p>\n<p>\u201cYou can reuse and recycle it. That\u2019s one thing you struggle to do with cyanide,\u201d said Professor Eksteen.<\/p>\n<p>Curtin University has patented the process and the Curtin team are currently working to optimise the system.<\/p>\n<h2>More news from Curtin&#8217;s WA School of Mines<\/h2>\n<p><a href=\"https:\/\/news.curtin.edu.au\/stories\/campus-properties-update\/\"><img decoding=\"async\" class=\"alignnone size-full wp-image-29047\" src=\"https:\/\/www.curtin.edu.au\/news\/wp-content\/uploads\/2022\/07\/wasm-library-sml.jpg\" alt=\"Computer area in the WASM library\" \/><\/a><\/p>\n<h3 class=\"grid-list__item__title\" style=\"padding-top: 0;\"><a href=\"https:\/\/news.curtin.edu.au\/stories\/campus-properties-update\/\">Campus properties update<\/a><\/h3>\n<p>Exciting times are ahead for staff and students at Curtin WA School of Mines as the program of upgrades to the campus have now passed stage one.<\/p>\n<p><a href=\"https:\/\/news.curtin.edu.au\/stories\/international-mining-games\/\"><img decoding=\"async\" class=\"alignnone size-full wp-image-29050\" src=\"\/news\/wp-content\/uploads\/2022\/07\/wasm-wombats-sml.jpg\" alt=\"The WASM Wombats team\" \/><\/a><\/p>\n<h3 class=\"grid-list__item__title\" style=\"padding-top: 0;\"><a href=\"https:\/\/news.curtin.edu.au\/stories\/international-mining-games\/\">International Mining Games<\/a><\/h3>\n<p>Curtin WA School of Mines is excited to be hosting the 37th Safescape\u2019s International Collegiate Mining Games in Kalgoorlie from 25 to 29 March.<\/p>\n<p><a href=\"https:\/\/news.curtin.edu.au\/stories\/ausimm-new-leaders-conference\/\"><img decoding=\"async\" class=\"alignnone size-full wp-image-29037\" src=\"https:\/\/www.curtin.edu.au\/news\/wp-content\/uploads\/2022\/07\/steve-hall-sml.jpg\" alt=\"Professor Steve Hall, Director of Curtin WA School of Mines\" \/><\/a><\/p>\n<h3 class=\"grid-list__item__title\" style=\"padding-top: 0;\"><a href=\"https:\/\/news.curtin.edu.au\/stories\/ausimm-new-leaders-conference\/\">AUSIMM New Leaders\u2019 Conference<\/a><\/h3>\n<p>The Australasian Institute of Mining and Metallurgy will be hosting the New Leaders\u2019 Conference in Kalgoorlie from 23 to 24 March.<\/p>\n<h2>More information<\/h2>\n<p>Find out more about <a href=\"http:\/\/wasm.curtin.edu.au\/index.cfm\">Curtin&#8217;s WA School of Mines<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Curtin University\u2019s Gold Technology Group has discovered a green alternative to the toxic systems currently used to reach precious metals from their ores.<\/p>\n","protected":false},"author":4275,"featured_media":5194,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_oasis_is_in_workflow":0,"_oasis_original":0,"_oasis_task_priority":"","_relevanssi_hide_post":"","_relevanssi_hide_content":"","_relevanssi_pin_for_all":"","_relevanssi_pin_keywords":"","_relevanssi_unpin_keywords":"","_relevanssi_related_keywords":"","_relevanssi_related_include_ids":"","_relevanssi_related_exclude_ids":"","_relevanssi_related_no_append":"","_relevanssi_related_not_related":"","_relevanssi_related_posts":"8309,7754,4593,6114,4596,5685","_relevanssi_noindex_reason":"","wds_primary_category":3,"wds_primary_research-areas":0,"footnotes":""},"categories":[3,4],"tags":[],"research-areas":[],"class_list":["post-5193","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-campus-and-global-community","category-research"],"acf":{"post_options":{"":null,"additional_content":{"title":"","content":"","image":false},"related_courses":[{"title":"Graduate Diploma in Mining","qualification":"GradDipMine(Curtin)","link":"http:\/\/courses.curtin.edu.au\/course_overview\/postgraduate\/GDip-Mining","description":"This course is designed to help you enter the mining industry. You will develop a detailed knowledge of the mining industry and become particularly familiar with mining engineering methods. Your studies will prepare you for managerial responsibilities in the mining industry or operational management at both quarry and underground manager levels.","faculty":"Science and Engineering"}],"credits":{"author":"","photographer":"","media":false},"display_author":true,"banner":{"image":false}},"post_components":false},"featured_image":"https:\/\/www.curtin.edu.au\/news\/wp-content\/uploads\/2022\/07\/acid-news.jpg","author_meta":{"first_name":"Curtin","last_name":"University","display_name":"Curtin University"},"publishpress_future_action":{"enabled":false,"date":"2026-04-14 06:51:35","action":"change-status","newStatus":"draft","terms":[],"taxonomy":"category","extraData":[]},"publishpress_future_workflow_manual_trigger":{"enabledWorkflows":[]},"_links":{"self":[{"href":"https:\/\/www.curtin.edu.au\/news\/wp-json\/wp\/v2\/posts\/5193","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.curtin.edu.au\/news\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.curtin.edu.au\/news\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.curtin.edu.au\/news\/wp-json\/wp\/v2\/users\/4275"}],"replies":[{"embeddable":true,"href":"https:\/\/www.curtin.edu.au\/news\/wp-json\/wp\/v2\/comments?post=5193"}],"version-history":[{"count":0,"href":"https:\/\/www.curtin.edu.au\/news\/wp-json\/wp\/v2\/posts\/5193\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.curtin.edu.au\/news\/wp-json\/wp\/v2\/media\/5194"}],"wp:attachment":[{"href":"https:\/\/www.curtin.edu.au\/news\/wp-json\/wp\/v2\/media?parent=5193"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.curtin.edu.au\/news\/wp-json\/wp\/v2\/categories?post=5193"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.curtin.edu.au\/news\/wp-json\/wp\/v2\/tags?post=5193"},{"taxonomy":"research-areas","embeddable":true,"href":"https:\/\/www.curtin.edu.au\/news\/wp-json\/wp\/v2\/research-areas?post=5193"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}