{"id":8547,"date":"2024-04-18T22:54:51","date_gmt":"2024-04-18T22:54:51","guid":{"rendered":"https:\/\/economicherald.net\/?p=8547"},"modified":"2024-04-18T22:54:51","modified_gmt":"2024-04-18T22:54:51","slug":"improved-processing-techniques-brings-higher-grades-and-savings-to-od6-metals-rare-earths-project","status":"publish","type":"post","link":"https:\/\/economicherald.net\/?p=8547","title":{"rendered":"Improved processing techniques brings higher grades and savings to OD6 Metals\u2019 rare earths project"},"content":{"rendered":"<p>Samples were selected for metallurgical test work across four large prospects at OD6\u2019s Splinter Rock rare earths project in WA<br \/>\nHead samples were assayed prior to, and then post, screening out of material with greater than 75um particle size<br \/>\nThe opportunity exists for screening size to be further optimised to maximise rare earth recovery while reducing acid consumption <\/p>\n<p>\u00a0<\/p>\n<p><strong><em>Special report<\/em>: Metallurgical test work conducted at OD6\u2019s flagship Splinter Rock project has demonstrated a significant increase in total rare earth oxide (TREO) grades.<\/strong><\/p>\n<p><a href=\"https:\/\/stockhead.com.au\/company\/od6-metals-od6\/\"><strong>OD6 Metals (ASX:OD6)<\/strong><\/a> has been working on simplifying its rare earths processing flow sheet, based on metallurgical test work completed to date with the Australian Nuclear Science and Technology Organisation and CSIRO.<\/p>\n<p>The company has partnered with the two research organisations to improve exploration and extraction of rare earth clay deposits at the Splinter Rock project in WA\u2019s Esperance-Goldfields region.<\/p>\n<p>Funds from a recent <a href=\"https:\/\/stockhead.com.au\/resources\/od6-metals-raising-up-to-2-5m-to-advance-splinter-rock-rare-earths-project-towards-development\/\">$1.5m placement were spent on the ANSTO program<\/a>, focusing on optimising the leach recovery and impurity removal of coarse material across various regolith types at four large prospects (Prop, Centre, Scrum and Flanker).<\/p>\n<p>OD6\u2019s goal is to produce a mixed rare earth carbonate product that will enable the completion of the scoping study.<\/p>\n<p>\u00a0<\/p>\n<h2><strong>Metallurgical results from 13 samples <\/strong><\/h2>\n<p>A total of 13 Phase 1 samples were selected from a wide variety of clays, locations and depths to develop a geo-metallurgical understanding of acid consumption and recovery.<\/p>\n<p>Head samples were assayed prior to, and then post, screening out of material with greater than 75um particle size.<\/p>\n<p>The screened and unscreened samples were subjected to the standard ANSTO diagnostic leach tests at 25 g\/L hydrochloric, at ambient conditions and pressures, over a 6-hour period to determine if screening resulted in decreased acid consumption and to identify any impacts on MagREO recovery.<\/p>\n<p>Metallurgical testing of screened material at 75um delivered up to 79% reduction in hydrochloric acid (HCl) consumption (35% average reduction) to ~10kg HCl\/t total screened ore.<\/p>\n<p>It also improved TREO grades by up to 224%.<\/p>\n<p>OD6 says the opportunity exists for screening size to be further optimised to maximise rare earth recovery while reducing acid consumption.<\/p>\n<p>\u00a0<\/p>\n<h2><strong>Benefits to overall cost profile of operations <\/strong><\/h2>\n<p>\u201cLeaching of the finer faction material has the corresponding benefit of consuming an average of 35% less acid as a total of product processed,\u201d OD6 managing director Brett Hazelden says.<\/p>\n<p>\u201cThis provides a potential benefit to the overall cost profile of any future operation by reducing the amount of material that needs to be leached with acid by approximately 40%.<\/p>\n<p>\u201cAdditional screening size optimisation will occur in future phases of work providing the potential for further improvements.\u201d<\/p>\n<p>\u00a0<\/p>\n<h2><strong>The Chlor-Alkali process <\/strong><\/h2>\n<p>OD6 has obtained information from chlor-alkali electrolyser vendors and experts to determine if owning and operating a site-based facility is a viable processing option.<\/p>\n<p>The chlor-alkali process involves passing an electric current through high-purity sodium chloride (NaCl or salt) brine to produce hydrogen, chlorine and caustic soda; the hydrogen and chlorine can then be combined into hydrochloric acid.<\/p>\n<p>A single chlor-alkali electrolyser is indicatively capable of treating more than 5Mtpa of REE bearing clay.<\/p>\n<p>Given power being the main cost driver, OD6 envisages that low-cost power supply would be sourced from an owned and operated hybrid power system consisting of solar, wind turbines, energy storage and gas or diesel-powered generators.<\/p>\n<p>It is understood that a similar facility currently powering the Esperance township and surrounding areas is achieving a 70% renewable power penetration rate which is a significant achievement that OD6 should aim to replicate.<\/p>\n<p><strong>\u00a0<\/strong><\/p>\n\n<p><span class=\"mce_SELRES_start\">\ufeff<\/span>\u00a0<\/p>\n<p><em>This article was developed in collaboration with OD6 Metals, a Stockhead advertiser at the time of publishing. <\/em><\/p>\n<p><em>\u00a0<\/em><\/p>\n<p><em>This article does not constitute financial product advice. You should consider obtaining independent advice before making any financial decisions.<\/em><\/p>\n<p><span class=\"et_bloom_bottom_trigger\"><\/span><\/p>\n<p>The post <a href=\"https:\/\/stockhead.com.au\/resources\/improved-processing-techniques-brings-higher-grades-and-savings-to-od6-metals-rare-earths-project\/\">Improved processing techniques brings higher grades and savings to OD6 Metals\u2019 rare earths project<\/a> appeared first on <a href=\"https:\/\/stockhead.com.au\/\">Stockhead<\/a>.<\/p>","protected":false},"excerpt":{"rendered":"<p>Samples were selected for metallurgical test work across four large prospects at OD6\u2019s Splinter Rock rare earths project in WA Head samples were assayed prior <a href=\"https:\/\/economicherald.net\/?p=8547\" class=\"read-more-link\">[more&#8230;]<\/a><\/p>\n","protected":false},"author":0,"featured_media":8548,"comment_status":"","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-8547","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-finance"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Improved processing techniques brings higher grades and savings to OD6 Metals\u2019 rare earths project - Economic Herald<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/economicherald.net\/?p=8547\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Improved processing techniques brings higher grades and savings to OD6 Metals\u2019 rare earths project - Economic Herald\" \/>\n<meta property=\"og:description\" content=\"Samples were selected for metallurgical test work across four large prospects at OD6\u2019s Splinter Rock rare earths project in WA Head samples were assayed prior [more...]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/economicherald.net\/?p=8547\" \/>\n<meta property=\"og:site_name\" content=\"Economic Herald\" \/>\n<meta property=\"article:published_time\" content=\"2024-04-18T22:54:51+00:00\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/economicherald.net\\\/?p=8547#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/economicherald.net\\\/?p=8547\"},\"author\":{\"name\":\"\",\"@id\":\"\"},\"headline\":\"Improved processing techniques brings higher grades and savings to OD6 Metals\u2019 rare earths project\",\"datePublished\":\"2024-04-18T22:54:51+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/economicherald.net\\\/?p=8547\"},\"wordCount\":649,\"publisher\":{\"@id\":\"https:\\\/\\\/economicherald.net\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/economicherald.net\\\/?p=8547#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/economicherald.net\\\/wp-content\\\/uploads\\\/2024\\\/04\\\/savings-ZEnuTi.jpeg\",\"articleSection\":[\"Finance\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/economicherald.net\\\/?p=8547\",\"url\":\"https:\\\/\\\/economicherald.net\\\/?p=8547\",\"name\":\"Improved processing techniques brings higher grades and savings to OD6 Metals\u2019 rare earths project - Economic Herald\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/economicherald.net\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/economicherald.net\\\/?p=8547#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/economicherald.net\\\/?p=8547#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/economicherald.net\\\/wp-content\\\/uploads\\\/2024\\\/04\\\/savings-ZEnuTi.jpeg\",\"datePublished\":\"2024-04-18T22:54:51+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/economicherald.net\\\/?p=8547#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/economicherald.net\\\/?p=8547\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/economicherald.net\\\/?p=8547#primaryimage\",\"url\":\"https:\\\/\\\/economicherald.net\\\/wp-content\\\/uploads\\\/2024\\\/04\\\/savings-ZEnuTi.jpeg\",\"contentUrl\":\"https:\\\/\\\/economicherald.net\\\/wp-content\\\/uploads\\\/2024\\\/04\\\/savings-ZEnuTi.jpeg\",\"width\":1200,\"height\":674},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/economicherald.net\\\/?p=8547#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/economicherald.net\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Improved processing techniques brings higher grades and savings to OD6 Metals\u2019 rare earths project\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/economicherald.net\\\/#website\",\"url\":\"https:\\\/\\\/economicherald.net\\\/\",\"name\":\"Economic Herald\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\\\/\\\/economicherald.net\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/economicherald.net\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/economicherald.net\\\/#organization\",\"name\":\"Economic Herald\",\"url\":\"https:\\\/\\\/economicherald.net\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/economicherald.net\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/economicherald.net\\\/wp-content\\\/uploads\\\/2023\\\/10\\\/cropped-cropped-economicheraldlogo-1.png\",\"contentUrl\":\"https:\\\/\\\/economicherald.net\\\/wp-content\\\/uploads\\\/2023\\\/10\\\/cropped-cropped-economicheraldlogo-1.png\",\"width\":850,\"height\":760,\"caption\":\"Economic Herald\"},\"image\":{\"@id\":\"https:\\\/\\\/economicherald.net\\\/#\\\/schema\\\/logo\\\/image\\\/\"}}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Improved processing techniques brings higher grades and savings to OD6 Metals\u2019 rare earths project - Economic Herald","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/economicherald.net\/?p=8547","og_locale":"en_US","og_type":"article","og_title":"Improved processing techniques brings higher grades and savings to OD6 Metals\u2019 rare earths project - Economic Herald","og_description":"Samples were selected for metallurgical test work across four large prospects at OD6\u2019s Splinter Rock rare earths project in WA Head samples were assayed prior [more...]","og_url":"https:\/\/economicherald.net\/?p=8547","og_site_name":"Economic Herald","article_published_time":"2024-04-18T22:54:51+00:00","twitter_card":"summary_large_image","twitter_misc":{"Est. reading time":"3 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/economicherald.net\/?p=8547#article","isPartOf":{"@id":"https:\/\/economicherald.net\/?p=8547"},"author":{"name":"","@id":""},"headline":"Improved processing techniques brings higher grades and savings to OD6 Metals\u2019 rare earths project","datePublished":"2024-04-18T22:54:51+00:00","mainEntityOfPage":{"@id":"https:\/\/economicherald.net\/?p=8547"},"wordCount":649,"publisher":{"@id":"https:\/\/economicherald.net\/#organization"},"image":{"@id":"https:\/\/economicherald.net\/?p=8547#primaryimage"},"thumbnailUrl":"https:\/\/economicherald.net\/wp-content\/uploads\/2024\/04\/savings-ZEnuTi.jpeg","articleSection":["Finance"],"inLanguage":"en-US"},{"@type":"WebPage","@id":"https:\/\/economicherald.net\/?p=8547","url":"https:\/\/economicherald.net\/?p=8547","name":"Improved processing techniques brings higher grades and savings to OD6 Metals\u2019 rare earths project - Economic Herald","isPartOf":{"@id":"https:\/\/economicherald.net\/#website"},"primaryImageOfPage":{"@id":"https:\/\/economicherald.net\/?p=8547#primaryimage"},"image":{"@id":"https:\/\/economicherald.net\/?p=8547#primaryimage"},"thumbnailUrl":"https:\/\/economicherald.net\/wp-content\/uploads\/2024\/04\/savings-ZEnuTi.jpeg","datePublished":"2024-04-18T22:54:51+00:00","breadcrumb":{"@id":"https:\/\/economicherald.net\/?p=8547#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/economicherald.net\/?p=8547"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/economicherald.net\/?p=8547#primaryimage","url":"https:\/\/economicherald.net\/wp-content\/uploads\/2024\/04\/savings-ZEnuTi.jpeg","contentUrl":"https:\/\/economicherald.net\/wp-content\/uploads\/2024\/04\/savings-ZEnuTi.jpeg","width":1200,"height":674},{"@type":"BreadcrumbList","@id":"https:\/\/economicherald.net\/?p=8547#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/economicherald.net\/"},{"@type":"ListItem","position":2,"name":"Improved processing techniques brings higher grades and savings to OD6 Metals\u2019 rare earths project"}]},{"@type":"WebSite","@id":"https:\/\/economicherald.net\/#website","url":"https:\/\/economicherald.net\/","name":"Economic Herald","description":"","publisher":{"@id":"https:\/\/economicherald.net\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/economicherald.net\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/economicherald.net\/#organization","name":"Economic Herald","url":"https:\/\/economicherald.net\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/economicherald.net\/#\/schema\/logo\/image\/","url":"https:\/\/economicherald.net\/wp-content\/uploads\/2023\/10\/cropped-cropped-economicheraldlogo-1.png","contentUrl":"https:\/\/economicherald.net\/wp-content\/uploads\/2023\/10\/cropped-cropped-economicheraldlogo-1.png","width":850,"height":760,"caption":"Economic Herald"},"image":{"@id":"https:\/\/economicherald.net\/#\/schema\/logo\/image\/"}}]}},"_links":{"self":[{"href":"https:\/\/economicherald.net\/index.php?rest_route=\/wp\/v2\/posts\/8547","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/economicherald.net\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/economicherald.net\/index.php?rest_route=\/wp\/v2\/types\/post"}],"replies":[{"embeddable":true,"href":"https:\/\/economicherald.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=8547"}],"version-history":[{"count":0,"href":"https:\/\/economicherald.net\/index.php?rest_route=\/wp\/v2\/posts\/8547\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/economicherald.net\/index.php?rest_route=\/wp\/v2\/media\/8548"}],"wp:attachment":[{"href":"https:\/\/economicherald.net\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=8547"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/economicherald.net\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=8547"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/economicherald.net\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=8547"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}