{"id":129232,"date":"2024-03-26T08:00:13","date_gmt":"2024-03-26T06:00:13","guid":{"rendered":"https:\/\/tietopankki.crnet.fi\/fi\/news\/major-environmental-benefits-recycling-gold-with-biodiesel\/"},"modified":"2024-03-26T08:00:13","modified_gmt":"2024-03-26T06:00:13","slug":"major-environmental-benefits-recycling-gold-with-biodiesel","status":"publish","type":"post","link":"https:\/\/tietopankki.crnet.fi\/en\/news\/major-environmental-benefits-recycling-gold-with-biodiesel\/","title":{"rendered":"Major environmental benefits recycling gold with biodiesel"},"content":{"rendered":"<div class=\"mp_wrapper\">\n  <div class=\"mepr-unauthorized-message\">\n    <p>You are unauthorized to view this page.<\/p>\n  <\/div>\n  <div class=\"mepr-login-form-wrap\">\n            \n<div class=\"mp_wrapper mp_login_form\">\n                  <!-- mp-login-form-start -->     <form name=\"mepr_loginform\" id=\"mepr_loginform\" class=\"mepr-form\" action=\"https:\/\/tietopankki.crnet.fi\/en\/login-2\/\" method=\"post\" data-trp-original-action=\"https:\/\/tietopankki.crnet.fi\/en\/login-2\/\">\n            <div class=\"mp-form-row mepr_username\">\n        <div class=\"mp-form-label\">\n                              <label for=\"user_login\">Username<\/label>\n        <\/div>\n        <input type=\"text\" name=\"log\" id=\"user_login\" value=\"\" \/>\n      <\/div>\n      <div class=\"mp-form-row mepr_password\">\n        <div class=\"mp-form-label\">\n          <label for=\"user_pass\">Password<\/label>\n          <div class=\"mp-hide-pw\">\n            <input type=\"password\" name=\"pwd\" id=\"user_pass\" value=\"\" \/>\n            <button type=\"button\" class=\"button mp-hide-pw hide-if-no-js\" data-toggle=\"0\" aria-label=\"Show password\">\n              <span class=\"dashicons dashicons-visibility\" aria-hidden=\"true\"><\/span>\n            <\/button>\n          <\/div>\n        <\/div>\n      <\/div>\n            <div>\n        <label><input name=\"rememberme\" type=\"checkbox\" id=\"rememberme\" value=\"forever\" \/> Remember Me<\/label>\n      <\/div>\n      <div class=\"mp-spacer\">&nbsp;<\/div>\n      <div class=\"submit\">\n        <input type=\"submit\" name=\"wp-submit\" id=\"wp-submit\" class=\"button-primary mepr-share-button\" value=\"Log In\" \/>\n        <input type=\"hidden\" name=\"redirect_to\" value=\"\/en\/wp-json\/wp\/v2\/posts\/129232\" \/>\n        <input type=\"hidden\" name=\"mepr_process_login_form\" value=\"true\" \/>\n        <input type=\"hidden\" name=\"mepr_is_login_page\" value=\"false\" \/>\n      <\/div>\n    <input type=\"hidden\" name=\"trp-form-language\" value=\"en\"\/><\/form>\n    <div class=\"mp-spacer\">&nbsp;<\/div>\n    <div class=\"mepr-login-actions\">\n        <a\n          href=\"https:\/\/tietopankki.crnet.fi\/en\/login-2\/?action=forgot_password\"\n          title=\"Click here to reset your password\"\n        >\n          Forgot Password        <\/a>\n    <\/div>\n\n      \n    <!-- mp-login-form-end --> \n  <\/div>\n      <\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<div class=\"smart_content_wrapper\">\n<p>Together with his research colleagues at Chalmers, Mark Foreman has found a way to use biodiesel instead of fossil diesel, which can be produced from residual products from the forest and pulp industry, and which is sold commercially as fuel under the brand name HVO100. Biodiesel contains virtually no aromatic hydrocarbons at all.<\/p>\n<p>In the researchers\u2019 method, gold scrap \u2212 usually in the form of small earrings that Mark Foreman buys at his local pawn shop \u2212 is dissolved in a mixture of hydrochloric acid and nitric acid (aqua regia). The gold found in jewellery is an alloy with other metals, including silver, and this leads to the silver depositing in solid form as silver chloride. In just two more steps, pure gold is then extracted from the solution. Firstly, HVO100 and the chemical malonamide are added, and secondly the entire mixture is shaken with ordinary salt water. The method used by the Chalmers researchers is even more \u2018green\u2019, since the malanomide was made from renewable biomass, which replaces more toxic and carcinogenic chemicals that are traditionally used to purify gold scrap.<\/p>\n<p>The same method can be used to purify and recycle many other socially important metals, such as platinum, which is used in catalysts; nickel and cobalt in batteries; uranium and plutonium for the nuclear industry; and rare earth elements. The latter are a prerequisite for the rapid development of everyday electronics such as smartphones and tablets, and are important for modern green technology, such as in wind turbines and electric vehicles.<\/p>\n<p>Source: <a rel=\"noopener\" href=\"https:\/\/www.recycling-magazine.com\/2024\/03\/25\/major-environmental-benefits-recycling-gold-with-biodiesel\/\">Recycling Magazine<\/a><\/p>\n<\/div>\n<p>The post <a rel=\"noopener\" href=\"https:\/\/vastuullisuusuutiset.fi\/fi\/environmental-news-en\/1-500\/\">Major environmental benefits recycling gold with biodiesel<\/a> appeared first on <a rel=\"noopener\" href=\"https:\/\/vastuullisuusuutiset.fi\/fi\">Vastuullisuusuutiset.fi<\/a>.<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[22],"tags":[6441,575,1122,764],"class_list":["post-129232","post","type-post","status-publish","format-standard","hentry","category-news","tag-biodiesel","tag-environmental-news-en","tag-gold","tag-recycling"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/tietopankki.crnet.fi\/en\/wp-json\/wp\/v2\/posts\/129232","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/tietopankki.crnet.fi\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/tietopankki.crnet.fi\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/tietopankki.crnet.fi\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/tietopankki.crnet.fi\/en\/wp-json\/wp\/v2\/comments?post=129232"}],"version-history":[{"count":0,"href":"https:\/\/tietopankki.crnet.fi\/en\/wp-json\/wp\/v2\/posts\/129232\/revisions"}],"wp:attachment":[{"href":"https:\/\/tietopankki.crnet.fi\/en\/wp-json\/wp\/v2\/media?parent=129232"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/tietopankki.crnet.fi\/en\/wp-json\/wp\/v2\/categories?post=129232"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/tietopankki.crnet.fi\/en\/wp-json\/wp\/v2\/tags?post=129232"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}