{"id":2688,"date":"2020-09-04T07:23:18","date_gmt":"2020-09-04T07:23:18","guid":{"rendered":"https:\/\/www.aluminiumceramicfiber.com\/?p=2688"},"modified":"2026-09-11T07:27:41","modified_gmt":"2026-09-11T07:27:41","slug":"mg-removal-methods","status":"publish","type":"post","link":"https:\/\/www.aluminiumceramicfiber.com\/id\/mg-removal-methods\/","title":{"rendered":"Metode Penghilangan Mg"},"content":{"rendered":"<p>Magnesium removal is an important part of secondary aluminum melt treatment when the magnesium content of recycled aluminum is higher than the target alloy specification. Common approaches include oxidation, chlorine-based treatment, chloride-salt treatment, and flux-based methods using compounds such as cryolite. The appropriate method depends on the initial magnesium content, target composition, alloy, melt temperature, environmental requirements, and available melt-treatment equipment.<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Daftar Isi<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Beralih<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.aluminiumceramicfiber.com\/id\/mg-removal-methods\/#Why_Does_Magnesium_Need_to_Be_Removed_from_Aluminum_Melt\" >Why Does Magnesium Need to Be Removed from Aluminum Melt?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.aluminiumceramicfiber.com\/id\/mg-removal-methods\/#Common_Mg_Removal_Methods\" >Common Mg Removal Methods<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.aluminiumceramicfiber.com\/id\/mg-removal-methods\/#1_Magnesium_Removal_by_Oxidation\" >1. Magnesium Removal by Oxidation<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.aluminiumceramicfiber.com\/id\/mg-removal-methods\/#2_Chlorine-Based_Magnesium_Removal\" >2. Chlorine-Based Magnesium Removal<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.aluminiumceramicfiber.com\/id\/mg-removal-methods\/#3_Chloride-Salt_Magnesium_Removal\" >3. Chloride-Salt Magnesium Removal<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.aluminiumceramicfiber.com\/id\/mg-removal-methods\/#4_Cryolite-Based_Magnesium_Removal\" >4. Cryolite-Based Magnesium Removal<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.aluminiumceramicfiber.com\/id\/mg-removal-methods\/#5_Magnesium_Removal_Flux\" >5. Magnesium Removal Flux<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.aluminiumceramicfiber.com\/id\/mg-removal-methods\/#How_Do_You_Choose_a_Magnesium_Removal_Method\" >How Do You Choose a Magnesium Removal Method?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.aluminiumceramicfiber.com\/id\/mg-removal-methods\/#What_Should_Be_Checked_Before_Magnesium_Removal\" >What Should Be Checked Before Magnesium Removal?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.aluminiumceramicfiber.com\/id\/mg-removal-methods\/#Magnesium_Removal_in_Secondary_Aluminum_Recycling\" >Magnesium Removal in Secondary Aluminum Recycling<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.aluminiumceramicfiber.com\/id\/mg-removal-methods\/#AdTech_Magnesium_Removal_Flux\" >AdTech Magnesium Removal Flux<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.aluminiumceramicfiber.com\/id\/mg-removal-methods\/#FAQ\" >Pertanyaan yang Sering Diajukan<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Why_Does_Magnesium_Need_to_Be_Removed_from_Aluminum_Melt\"><\/span>Why Does Magnesium Need to Be Removed from Aluminum Melt?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Magnesium is useful in many aluminum alloys, but excessive magnesium can be a problem when recycled aluminum needs to meet a specific alloy composition.<\/p>\n<p>For secondary aluminum production, magnesium may enter the melt from:<\/p>\n<ul>\n<li>Mixed or improperly sorted scrap<\/li>\n<li>Aluminum alloys with different Mg contents<\/li>\n<li>Coated or contaminated scrap<\/li>\n<li>Recycled production returns<\/li>\n<li>Mixing different alloy grades during remelting<\/li>\n<\/ul>\n<p>If the magnesium content is above the required range, simply adjusting other alloying elements will not solve the problem. A suitable melt-treatment process may be required to reduce Mg before the final alloy composition is established.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Common_Mg_Removal_Methods\"><\/span>Common Mg Removal Methods<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The main methods used for magnesium removal from molten aluminum include:<\/p>\n<table>\n<thead>\n<tr>\n<th>Metode<\/th>\n<th>Basic principle<\/th>\n<th>Main consideration<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Oksidasi<\/td>\n<td>Converts magnesium into magnesium-containing oxides<\/td>\n<td>Can also increase oxidation losses<\/td>\n<\/tr>\n<tr>\n<td>Chlorine treatment<\/td>\n<td>Converts magnesium into magnesium chloride and related products<\/td>\n<td>Requires strict gas-handling controls<\/td>\n<\/tr>\n<tr>\n<td>Chloride-salt treatment<\/td>\n<td>Uses chloride compounds to react with magnesium<\/td>\n<td>Process efficiency depends on flux composition and operating conditions<\/td>\n<\/tr>\n<tr>\n<td>Cryolite-based treatment<\/td>\n<td>Uses fluoride-containing compounds to react with magnesium<\/td>\n<td>Consumption and treatment conditions must be controlled<\/td>\n<\/tr>\n<tr>\n<td>Specialized Mg-removal flux<\/td>\n<td>Uses a formulated flux designed for magnesium removal<\/td>\n<td>Practical choice depends on target Mg level and melt conditions<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>The best method is not determined by magnesium content alone. The treatment should also consider metal loss, dross generation, safety, environmental requirements, treatment time, and the final alloy specification.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"1_Magnesium_Removal_by_Oxidation\"><\/span>1. Magnesium Removal by Oxidation<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Magnesium has a strong affinity for oxygen. When molten aluminum is exposed to oxygen, magnesium can oxidize and form magnesium-containing oxides.<\/p>\n<p>These oxidation products can be incorporated into the surface dross and removed during skimming.<\/p>\n<p>Mechanical stirring may increase contact between the melt and the atmosphere and accelerate oxidation. However, oxidation is not selective to magnesium.<\/p>\n<p>Aluminum and other reactive elements can also oxidize during the process.<\/p>\n<p>This can result in:<\/p>\n<ul>\n<li>Increased dross generation<\/li>\n<li>Aluminum loss<\/li>\n<li>Oxidation of alloying elements<\/li>\n<li>Additional skimming<\/li>\n<li>Less predictable magnesium removal<\/li>\n<\/ul>\n<p>For these reasons, oxidation alone is generally not the preferred approach when accurate magnesium control is required.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"2_Chlorine-Based_Magnesium_Removal\"><\/span>2. Chlorine-Based Magnesium Removal<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Chlorine can react with magnesium in molten aluminum to form magnesium chloride:<\/p>\n<p><strong>Mg + Cl\u2082 \u2192 MgCl\u2082<\/strong><\/p>\n<p>The resulting magnesium chloride can enter the salt or flux phase and be removed from the melt.<\/p>\n<p>Chlorine-based treatment can provide effective magnesium removal, but it requires appropriate gas-handling equipment and operating controls because chlorine is hazardous to personnel and the environment.<\/p>\n<p>For industrial aluminum recycling, the decision to use chlorine should therefore consider not only metallurgical performance but also:<\/p>\n<ul>\n<li>Gas-handling requirements<\/li>\n<li>Worker safety<\/li>\n<li>Emission control<\/li>\n<li>Regulatory requirements<\/li>\n<li>Equipment investment<\/li>\n<li>Biaya operasional<\/li>\n<\/ul>\n<p>Where a chlorine-free treatment is suitable for the required magnesium reduction, a formulated flux can be considered as an alternative.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"3_Chloride-Salt_Magnesium_Removal\"><\/span>3. Chloride-Salt Magnesium Removal<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Chloride-based fluxes can also be used to remove magnesium from molten aluminum.<\/p>\n<p>Aluminum chloride is one of the compounds that can participate in magnesium-removal reactions. In industrial treatment, the chloride material is introduced into the melt through a suitable carrier or injection method.<\/p>\n<p>The basic objective is to transfer magnesium from the aluminum melt into a reaction product or salt phase that can then be separated from the metal.<\/p>\n<p>The actual magnesium-removal efficiency depends on factors such as:<\/p>\n<ul>\n<li>Initial magnesium concentration<\/li>\n<li>Flux composition<\/li>\n<li>Melt temperature<\/li>\n<li>Flux-to-metal ratio<\/li>\n<li>Contact between the flux and melt<\/li>\n<li>Waktu perawatan<\/li>\n<li>Mixing or injection method<\/li>\n<li>Final target magnesium content<\/li>\n<\/ul>\n<p>Therefore, a fixed removal percentage should not be assumed for every aluminum recycling operation.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"4_Cryolite-Based_Magnesium_Removal\"><\/span>4. Cryolite-Based Magnesium Removal<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Cryolite can react with magnesium in molten aluminum and form products that can be separated from the metal.<\/p>\n<p>Cryolite-based treatment has been used in secondary aluminum processing because of the availability and relatively low cost of the material.<\/p>\n<p>However, its practical performance depends strongly on the treatment conditions and the composition of the treatment mixture.<\/p>\n<p>Factors that need to be considered include:<\/p>\n<ul>\n<li>Melt temperature<\/li>\n<li>Initial Mg concentration<\/li>\n<li>Cryolite addition<\/li>\n<li>Other salt components<\/li>\n<li>Mixing conditions<\/li>\n<li>Waktu perawatan<\/li>\n<li>Required final Mg concentration<\/li>\n<\/ul>\n<p>Rather than applying a fixed cryolite consumption rate to every melt, the treatment quantity should be determined according to the actual melt composition and process requirements.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"5_Magnesium_Removal_Flux\"><\/span>5. Magnesium Removal Flux<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>For aluminum recyclers that need to reduce excess magnesium without directly handling chlorine gas, a formulated magnesium-removal flux can be a practical option.<\/p>\n<p>A dedicated Mg-removal flux is designed to promote the transfer of magnesium from the molten aluminum into the reaction\/salt phase, which can then be separated during melt treatment and skimming.<\/p>\n<p>Compared with using a single raw material, a formulated flux can be designed around the required treatment conditions.<\/p>\n<p>The appropriate flux depends on:<\/p>\n<ul>\n<li>Initial Mg content<\/li>\n<li>Target Mg content<\/li>\n<li>Paduan aluminium<\/li>\n<li>Melt temperature<\/li>\n<li>Melt quantity<\/li>\n<li>Treatment equipment<\/li>\n<li>Waktu perawatan<\/li>\n<li>Dross-handling requirements<\/li>\n<\/ul>\n<p>For this reason, the flux should be selected according to the actual production line rather than simply by magnesium content.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"How_Do_You_Choose_a_Magnesium_Removal_Method\"><\/span>How Do You Choose a Magnesium Removal Method?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-2689\" src=\"https:\/\/aluminiumceramicfiber.com\/wp-content\/uploads\/2020\/09\/Mg-Removal-Methods.jpg\" alt=\"Metode Penghilangan Mg\" width=\"500\" height=\"400\" srcset=\"https:\/\/www.aluminiumceramicfiber.com\/wp-content\/uploads\/2020\/09\/Mg-Removal-Methods.jpg 500w, https:\/\/www.aluminiumceramicfiber.com\/wp-content\/uploads\/2020\/09\/Mg-Removal-Methods-300x240.jpg 300w\" sizes=\"auto, (max-width: 500px) 100vw, 500px\" \/><\/p>\n<p>There is no single Mg-removal method that is suitable for every secondary aluminum operation.<\/p>\n<p>A practical comparison should consider both metallurgical and production factors.<\/p>\n<table>\n<thead>\n<tr>\n<th>Faktor<\/th>\n<th>Oksidasi<\/th>\n<th>Chlorine treatment<\/th>\n<th>Chloride salt<\/th>\n<th>Perlakuan fluks<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Mg removal<\/td>\n<td>Possible<\/td>\n<td>Effective<\/td>\n<td>Effective depending on process<\/td>\n<td>Formulated for target application<\/td>\n<\/tr>\n<tr>\n<td>Aluminum oxidation<\/td>\n<td>Relatively high<\/td>\n<td>Lower than direct oxidation, depending on process<\/td>\n<td>Depends on treatment<\/td>\n<td>Depends on formulation and operation<\/td>\n<\/tr>\n<tr>\n<td>Gas handling<\/td>\n<td>No chlorine system required<\/td>\n<td>Required<\/td>\n<td>Generally simpler<\/td>\n<td>Generally simpler<\/td>\n<\/tr>\n<tr>\n<td>Environmental considerations<\/td>\n<td>Dross\/oxide generation<\/td>\n<td>Chlorine emissions must be controlled<\/td>\n<td>Depends on flux<\/td>\n<td>Depends on flux<\/td>\n<\/tr>\n<tr>\n<td>Process control<\/td>\n<td>Relatively simple<\/td>\n<td>Requires controlled gas injection<\/td>\n<td>Requires controlled addition<\/td>\n<td>Requires controlled addition<\/td>\n<\/tr>\n<tr>\n<td>Best application<\/td>\n<td>Limited Mg adjustment<\/td>\n<td>Processes equipped for chlorine treatment<\/td>\n<td>Suitable salt-treatment systems<\/td>\n<td>Dedicated Mg-control applications<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>The final selection should be based on the required magnesium reduction rather than the treatment method alone.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"What_Should_Be_Checked_Before_Magnesium_Removal\"><\/span>What Should Be Checked Before Magnesium Removal?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Before selecting a treatment, determine the difference between the current and required magnesium content.<\/p>\n<p>A useful starting point is:<\/p>\n<p><strong>Initial Mg content \u2192 Target Mg content \u2192 Required Mg reduction<\/strong><\/p>\n<p>For example, an aluminum recycling plant should first determine:<\/p>\n<ol>\n<li>What is the current magnesium concentration?<\/li>\n<li>What is the required final concentration?<\/li>\n<li>What alloy is being produced?<\/li>\n<li>How much molten aluminum is being treated?<\/li>\n<li>What treatment equipment is available?<\/li>\n<li>What temperature is maintained during treatment?<\/li>\n<li>What restrictions apply to chlorine or fluoride-containing materials?<\/li>\n<\/ol>\n<p>These factors determine whether a conventional flux treatment, specialized Mg-removal flux, or another process is appropriate.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Magnesium_Removal_in_Secondary_Aluminum_Recycling\"><\/span>Magnesium Removal in Secondary Aluminum Recycling<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Magnesium removal is particularly relevant when recycled aluminum streams contain mixed alloy compositions.<\/p>\n<p>For example, scrap from different applications may have significantly different magnesium contents. After melting, the resulting composition may no longer meet the target alloy specification.<\/p>\n<p>In this situation, the melt-treatment process needs to work together with:<\/p>\n<p><strong>Scrap sorting \u2192 Melting \u2192 Composition analysis \u2192 Magnesium removal \u2192 Refining \u2192 Filtration \u2192 Alloy adjustment \u2192 Casting<\/strong><\/p>\n<p>Magnesium removal should therefore be considered part of the overall secondary aluminum melt-treatment process rather than an isolated chemical operation.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"AdTech_Magnesium_Removal_Flux\"><\/span>AdTech Magnesium Removal Flux<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>AdTech supplies refining fluxes for aluminum melt treatment, including flux designed for magnesium removal.<\/p>\n<p>The suitable product and treatment method depend on the customer&#8217;s actual production conditions.<\/p>\n<p>For an Mg-removal recommendation, the following information is useful:<\/p>\n<table>\n<thead>\n<tr>\n<th>Information<\/th>\n<th>Example<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Aluminum source<\/td>\n<td>Secondary\/recycled aluminum<\/td>\n<\/tr>\n<tr>\n<td>Current Mg content<\/td>\n<td>Laboratory analysis<\/td>\n<\/tr>\n<tr>\n<td>Target Mg content<\/td>\n<td>Required alloy specification<\/td>\n<\/tr>\n<tr>\n<td>Melt quantity<\/td>\n<td>Furnace or batch capacity<\/td>\n<\/tr>\n<tr>\n<td>Kelas paduan<\/td>\n<td>Current or target alloy<\/td>\n<\/tr>\n<tr>\n<td>Melt temperature<\/td>\n<td>Actual operating temperature<\/td>\n<\/tr>\n<tr>\n<td>Treatment method<\/td>\n<td>Manual, rotary, injection, etc.<\/td>\n<\/tr>\n<tr>\n<td>Required treatment frequency<\/td>\n<td>Per batch or continuous<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Providing the current Mg content and target Mg content is particularly useful because the same flux treatment should not be assumed for every melt.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"FAQ\"><\/span>Pertanyaan yang Sering Diajukan<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<details>\n<summary>1. Why is magnesium removed from molten aluminum?<\/summary>\n<p>Excess magnesium can cause the melt composition to fall outside the required alloy specification, particularly when mixed or recycled aluminum scrap is remelted.<\/p>\n<\/details>\n<details>\n<summary>2. What are the main Mg removal methods?<\/summary>\n<p>Common methods include oxidation, chlorine-based treatment, chloride-salt treatment, cryolite-based treatment, and formulated magnesium-removal fluxes.<\/p>\n<\/details>\n<details>\n<summary>3. How often does a porous ceramic filter need maintenance?<\/summary>\n<p>Yes, magnesium can oxidize during exposure to oxygen, but the process can also increase aluminum and alloying-element oxidation and dross formation.<\/p>\n<\/details>\n<details>\n<summary>4. Does chlorine remove magnesium from molten aluminum?<\/summary>\n<p>Yes. Chlorine can react with magnesium to form magnesium chloride. However, chlorine is hazardous and requires appropriate handling and emission controls.<\/p>\n<\/details>\n<details>\n<summary>5. What is magnesium removal flux?<\/summary>\n<p>It is a formulated melt-treatment material designed to promote magnesium removal from molten aluminum and transfer the reaction products into the salt\/dross phase.<\/p>\n<\/details>\n<details>\n<summary>6. Is cryolite used for magnesium removal?<\/summary>\n<p>Yes. Cryolite-based treatment has been used for magnesium removal in secondary aluminum processing, although the practical treatment conditions depend on the melt and process.<\/p>\n<\/details>\n<details>\n<summary>7. How much Mg can be removed from aluminum melt?<\/summary>\n<p>There is no single removal percentage that applies to every process. The result depends on initial Mg content, target Mg level, flux composition, temperature, treatment method, and treatment time.<\/p>\n<\/details>\n<details>\n<summary>8. What information is needed to select an Mg-removal flux?<\/summary>\n<p>The most important information is the current Mg content, target Mg content, alloy, melt quantity, operating temperature, and available treatment equipment.<\/p>\n<\/details>\n<details>\n<summary>9. Is magnesium removal only used in secondary aluminum?<\/summary>\n<p>Replacement is usually necessary when the filter structure is damaged, when repeated cleaning can no longer restore acceptable flow or filtration performance, or when long-term use causes irreversible blockage or material degradation.<\/p>\n<\/details>\n<details>\n<summary>10. Can AdTech recommend a magnesium-removal flux based on our production line?<\/summary>\n<p>Yes. Providing your current Mg content, target Mg level, melt quantity, temperature, and treatment process allows the flux requirement to be evaluated more accurately.<\/p>\n<\/details>","protected":false},"excerpt":{"rendered":"<p>Magnesium removal is an important part of secondary aluminum melt treatment when the magnesium content of recycled aluminum is higher than the target alloy specification. Common approaches include oxidation, chlorine-based treatment, chloride-salt treatment, and flux-based methods using compounds such as cryolite. The appropriate method depends on the initial magnesium content, target composition, alloy, melt temperature, [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":2689,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[86],"tags":[7217],"class_list":["post-2688","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog","tag-mg-removal-methods"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.0 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Mg Removal Methods from Secondary Aluminum Melt<\/title>\n<meta name=\"description\" content=\"Magnesium is also a common impurity in secondary aluminum production. 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