{"id":16024,"date":"2025-09-25T07:23:48","date_gmt":"2025-09-25T07:23:48","guid":{"rendered":"https:\/\/www.epicmicron.com\/?p=16024"},"modified":"2025-09-25T07:31:27","modified_gmt":"2025-09-25T07:31:27","slug":"antimony-trioxide-glass-clarifying-agent","status":"publish","type":"post","link":"https:\/\/www.epicmicron.com\/de\/antimony-trioxide-glass-clarifying-agent\/","title":{"rendered":"Antimontrioxid \u2013 Glaskl\u00e4rmittel"},"content":{"rendered":"<h2 class=\"wp-block-heading has-ast-global-color-0-color has-text-color has-link-color wp-elements-adc14a84c972fb05f0d8da37715dfa11\">Was ist Antimontrioxid?<\/h2>\n\n\n\n<p>Antimontrioxid (Sb\u2082O\u2083) hat ein Molekulargewicht von 291,5, eine Dichte von 5,1 g\/cm\u00b3, einen Schmelzpunkt von 656 \u00b0C und einen Siedepunkt von 1425 \u00b0C. Es kann unter Hochvakuum bei 400 \u00b0C sublimieren. Antimontrioxid ist ein wei\u00dfes, kristallines Pulver, das industriell als Antimonwei\u00df bekannt ist. Es ist schwer l\u00f6slich in Wasser, verd\u00fcnnter Schwefels\u00e4ure und verd\u00fcnnter Salpeters\u00e4ure, jedoch l\u00f6slich in Salzs\u00e4ure, konzentrierter Schwefels\u00e4ure, starken Laugen und Weins\u00e4urel\u00f6sungen.<\/p>\n\n\n\n<p>Hochwertiges Antimontrioxid selbst ist wenig toxisch. Minderwertige Qualit\u00e4ten k\u00f6nnen jedoch eine leichte Toxizit\u00e4t aufweisen, haupts\u00e4chlich aufgrund des zu hohen Arsentrioxid-Gehalts (As\u2082O\u2083). Der Kontakt kann bei Anwendern Symptome wie Juckreiz an H\u00e4nden und Armen hervorrufen.<\/p>\n\n\n\n<p>Der Kl\u00e4rmechanismus von Antimontrioxid \u00e4hnelt dem von Arsentrioxid. Es ist ein vielseitiges Kl\u00e4rmittel mit relativ hoher Dichte. Es geht bei relativ niedriger Temperatur von einem h\u00f6heren Oxid zu einem niedrigeren Oxid \u00fcber und eignet sich besonders gut f\u00fcr Gl\u00e4ser mit hohen Mengen an Bleioxid (PbO) oder Bariumoxid (BaO).<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"600\" src=\"https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/09\/antimony-trioxide.webp\" alt=\"\" class=\"wp-image-16025\" style=\"width:670px;height:auto\" srcset=\"https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/09\/antimony-trioxide.webp 800w, https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/09\/antimony-trioxide-300x225.webp 300w, https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/09\/antimony-trioxide-768x576.webp 768w, https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/09\/antimony-trioxide-16x12.webp 16w, https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/09\/antimony-trioxide-600x450.webp 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading has-ast-global-color-0-color has-text-color has-link-color wp-elements-1cd17e62aa4f91a94c2d3fdb1d0f35bf\">Die Verwendung von Antimontrioxid<\/h2>\n\n\n\n<p>Aufgrund seiner Fl\u00fcchtigkeit wird Sb\u2082O\u2083 nicht allein als Kl\u00e4rmittel verwendet. Es wird typischerweise mit Oxidationsmitteln wie Natriumnitrat (NaNO\u2083) oder Kaliumnitrat (KNO\u2083) kombiniert. <\/p>\n\n\n\n<p>In Kalknatronsilikatglas wird eine Kombination aus 0,18% bis 0,5% Sb\u2082O\u2083 mit der 4- bis 8-fachen Gewichtsmenge Natriumnitrat als Kl\u00e4rmittel verwendet. Bei niedrigeren Temperaturen reagiert es mit Sauerstoff, der bei der Zersetzung von Natriumnitrat freigesetzt wird, und bildet Antimonpentoxid (Sb\u2082O\u2085). Bei etwas h\u00f6heren Temperaturen zersetzt sich Sb\u2082O\u2085 und setzt Sauerstoff frei. Dieser hochaktive Sauerstoff diffundiert in Gasblasen verschiedener Art innerhalb der Glasschmelze, wodurch sich das Volumen der Blasen ausdehnt und sie aus der Schmelze aufsteigen, wodurch die Glaskl\u00e4rung gef\u00f6rdert wird. Die chemischen Reaktionen laufen wie folgt ab:<\/p>\n\n\n\n<p>2Sb\u2082O\u2083 + O\u2082 (aus NaNO\u2083) \u2192 2Sb\u2082O\u2085<\/p>\n\n\n\n<p>2Sb\u2082O\u2085 \u2192 2Sb\u2082O\u2083 + O\u2082]<\/p>\n\n\n\n<p>Wenn in Kalknatronsilikatglas 0,2% Antimontrioxid zusammen mit 0,2% Arsentrioxid (As\u2082O\u2083) verwendet wird, verst\u00e4rkt sich der Kl\u00e4reffekt. Dies liegt daran, dass Sb\u2082O\u2085 bei niedrigeren Temperaturen Sauerstoff freisetzt, w\u00e4hrend Arsenpentoxid (As\u2082O\u2085) bei h\u00f6heren Temperaturen Sauerstoff freisetzt. Dadurch wird sichergestellt, dass das Kl\u00e4rmittel \u00fcber den gesamten Schmelztemperaturbereich aktiv ist und die Bildung von Sekund\u00e4rblasen verhindert wird. Wenn jedoch die Kombination Sb\u2082O\u2083\/As\u2082O\u2083 in Bleiglas verwendet wird, k\u00f6nnen \u00fcberm\u00e4\u00dfige Mengen leicht Arsenat- und Antimonatkristalle bilden, die eine Tr\u00fcbung des Glases verursachen.<\/p>\n\n\n\n<p>F\u00fcr die Herstellung von Solarstrukturglas m\u00fcssen die chemische Zusammensetzung und die physikalischen Eigenschaften des verwendeten Antimonoxidpulvers die Anforderungen f\u00fcr die G\u00fcteklasse Sb\u2082O\u2083 99,50 gem\u00e4\u00df der chinesischen nationalen Norm GB\/T 4062-2013 erf\u00fcllen oder \u00fcbertreffen.<\/p>\n\n\n\n<p>Ein wichtiger Aspekt bei der Verwendung von Antimontrioxid ist, dass Glas mit Sb\u2082O\u2083 bei Einwirkung von ultraviolettem Licht oder Sonnenlicht einen schwachen Gelbstich entwickeln kann. (Im Gegensatz dazu kann Glas mit Arsentrioxid dunkelbraun werden.)<\/p>\n\n\n\n<h2 class=\"wp-block-heading has-ast-global-color-0-color has-text-color has-link-color wp-elements-6cee791dcd930b03c89050291561a20a\">Warum muss Antimontrioxid ultrafein gemahlen werden?<\/h2>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large is-resized\"><img decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/09\/antimony-trioxide-1-1024x683.webp\" alt=\"\" class=\"wp-image-16026\" style=\"width:666px;height:auto\" srcset=\"https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/09\/antimony-trioxide-1-1024x683.webp 1024w, https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/09\/antimony-trioxide-1-300x200.webp 300w, https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/09\/antimony-trioxide-1-768x512.webp 768w, https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/09\/antimony-trioxide-1-18x12.webp 18w, https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/09\/antimony-trioxide-1-600x400.webp 600w, https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/09\/antimony-trioxide-1.webp 1440w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p>Die ultrafeine Vermahlung von Antimontrioxid ist entscheidend f\u00fcr die Optimierung seiner Flammschutzwirkung. Je feiner die Partikelgr\u00f6\u00dfe, desto gr\u00f6\u00dfer die Oberfl\u00e4che, was die Dispersion und Reaktivit\u00e4t in Polymer- und Textilmatrizen verbessert. Typische Qualit\u00e4tsspezifikationen f\u00fcr Antimontrioxidpulver umfassen hohe Reinheit (~99,8%), Wei\u00dfe (~96,5%) und eine durchschnittliche Partikelgr\u00f6\u00dfe unter 4 Mikrometern f\u00fcr eine effektive Anwendung. Die gleichm\u00e4\u00dfige ultrafeine Partikelgr\u00f6\u00dfenverteilung verbessert die synergistische Feuerbest\u00e4ndigkeit in Kombination mit halogenierten Flammschutzmitteln, reduziert den Additivbedarf und verbessert Kosteneffizienz und Leistung.\u00a0<\/p>\n\n\n\n<h2 class=\"wp-block-heading has-ast-global-color-0-color has-text-color has-link-color wp-elements-f8daba8d7265ec4c0392b977bad2fc17\">Warum Luftstrahlmahlen f\u00fcr Antimontrioxid verwenden?<\/h2>\n\n\n\n<p>Air jet milling&nbsp;(Air jet milling) is especially suitable for antimony trioxide pulverization due to several technical advantages:<\/p>\n\n\n\n<p>Es erm\u00f6glicht eine Trockenverarbeitung, wodurch die mit der Nassmahlung verbundenen Verunreinigungen und Umweltprobleme reduziert werden.<\/p>\n\n\n\n<p>Das Verfahren erm\u00f6glicht das gleichzeitige Mahlen und Klassifizieren, wodurch eine pr\u00e4zise Partikelgr\u00f6\u00dfenverteilung erreicht wird.<\/p>\n\n\n\n<p>Luftstrahlm\u00fchlen k\u00f6nnen effizient ultrafeine Partikelgr\u00f6\u00dfen erreichen, die f\u00fcr die typischen Anforderungen von &lt;5 Mikron bei Flammschutzanwendungen geeignet sind.<\/p>\n\n\n\n<p>Die Technologie erzeugt beim Pulverisieren weniger W\u00e4rme und verringert so das Risiko einer thermischen Zersetzung oder einer Ver\u00e4nderung der Produktchemie.<\/p>\n\n\n\n<p>Sein geschlossenes Kreislaufsystem verbessert die Sicherheit beim Umgang mit potenziell giftigen Pulvern wie Antimontrioxidstaub.\u00a0<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img decoding=\"async\" width=\"1000\" height=\"1000\" src=\"https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/09\/jet-mill.webp\" alt=\"Strahlm\u00fchle\" class=\"wp-image-15869\" style=\"width:658px;height:auto\" srcset=\"https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/09\/jet-mill.webp 1000w, https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/09\/jet-mill-300x300.webp 300w, https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/09\/jet-mill-100x100.webp 100w, https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/09\/jet-mill-768x768.webp 768w, https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/09\/jet-mill-12x12.webp 12w, https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/09\/jet-mill-600x600.webp 600w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><figcaption class=\"wp-element-caption\">Strahlm\u00fchle<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading has-ast-global-color-0-color has-text-color has-link-color wp-elements-09237eb90a971369367aa794adf3055b\">Wichtige \u00dcberlegungen beim Luftstrahlmahlen von Antimontrioxid<\/h2>\n\n\n\n<p>Beim Mahlen von Antimontrioxid in einer Luftstrahlm\u00fchle ist auf Folgendes zu achten:<\/p>\n\n\n\n<p>Staubkontrolle und Arbeitssicherheit: Antimontrioxid steht im Verdacht, krebserregend zu sein, daher sind wirksame Eind\u00e4mmungs- und Staubabsaugsysteme von gr\u00f6\u00dfter Bedeutung.<\/p>\n\n\n\n<p>Kontrolle der Partikelgr\u00f6\u00dfe: Pr\u00e4zise Klassifizierereinstellungen stellen sicher, dass das Produkt den Spezifikationen entspricht, wobei in der Regel ein enger Gr\u00f6\u00dfenbereich von etwa 2\u20133 Mikrometern angestrebt wird.<\/p>\n\n\n\n<p>Qualit\u00e4t des Ausgangsmaterials: Konsistente Gr\u00f6\u00dfe und Feuchtigkeitsgehalt des Ausgangsmaterials optimieren die Mahlleistung und Produktgleichm\u00e4\u00dfigkeit.<\/p>\n\n\n\n<p>Verschlei\u00dffestigkeit: Die abrasive Natur von Mineralpulvern erfordert langlebige Mahl- und Klassifizierungskomponenten, um die Leistung aufrechtzuerhalten.<\/p>\n\n\n\n<p>Prozessparameter: Durch die Optimierung der Luftstr\u00f6mungsgeschwindigkeit, der Klassifiziererdrehzahl und des Mahldrucks werden Durchsatz und ultrafeine Feinheit ausgeglichen.\u00a0<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"533\" height=\"800\" src=\"https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/09\/fluid-bed-1.webp\" alt=\"Wirbelschicht\" class=\"wp-image-15993\" style=\"width:331px;height:auto\" srcset=\"https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/09\/fluid-bed-1.webp 533w, https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/09\/fluid-bed-1-200x300.webp 200w, https:\/\/www.epicmicron.com\/wp-content\/uploads\/2025\/09\/fluid-bed-1-8x12.webp 8w\" sizes=\"(max-width: 533px) 100vw, 533px\" \/><\/figure>\n\n\n\n<h2 class=\"wp-block-heading has-vivid-red-color has-text-color has-link-color wp-elements-ce764007aa4f316600c01e4926623f3c\">EPIC Pulvermaschinen<\/h2>\n\n\n\n<p>EPIC Powder Machinery\u2019s <a href=\"http:\/\/jet-mill\">Luftstrahlm\u00fchle<\/a> Systeme sind so konstruiert, dass sie den anspruchsvollen Standards der Antimontrioxid-Industrie gerecht werden. Unsere Luftstromm\u00fchlen erreichen:<\/p>\n\n\n\n<p>Partikelgr\u00f6\u00dfen liegen durchg\u00e4ngig im Bereich von 1\u20133 Mikrometern mit enger Verteilung f\u00fcr eine hervorragende flammhemmende Synergie.<\/p>\n\n\n\n<p>Hohe Durchsatzleistungen mit energieeffizienter Mahltechnik.<\/p>\n\n\n\n<p>Robuste Staubkontroll- und Sicherheitssysteme gew\u00e4hrleisten die Einhaltung der Arbeitsschutzvorschriften.<\/p>\n\n\n\n<p>Verschlei\u00dffeste Innenkomponenten, optimiert f\u00fcr abrasive Mineralpulver.<\/p>\n\n\n\n<p>Anpassbare Prozesskontrollen erm\u00f6glichen es Kunden, Parameter f\u00fcr spezifische Produktanforderungen zu optimieren.<\/p>\n\n\n\n<p>Kunden konnten durch den Einsatz der Luftstrahlm\u00fchlen von EPIC zur Herstellung von Antimontrioxidpulver eine verbesserte Produktqualit\u00e4t, eine geringere Additivdosierung in Endanwendungen und allgemeine Einsparungen bei den Verarbeitungskosten feststellen.<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video 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value=\"Einreichen\" \/>\n\t\t<\/p>\n\t<\/div>\n<\/div>\n<style>\n.keen-form div{margin-bottom:0px;}\n.keen-form div p{margin-bottom:0px !important;}\n.one-half,.one-third {\n position: relative;\n margin-right: 4%;\n float: left;\n z-index: 99;\n}\n.one-half { width: 48%; }\n.one-third { width: 30.66%; }\n.last {\n margin-right: 0 !important;\n clear: right;\n}\n@media only screen and (max-width: 767px) {\n .one-half, .one-third {\n width: 100%;\n margin-right: 0;\n }\n}\n<\/style><div class=\"wpcf7-response-output\" aria-hidden=\"true\"><\/div>\n<input type=\"hidden\" name=\"trp-form-language\" value=\"de\"\/><\/form>\n<\/div>\n<\/div>\n\n\n\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>Was ist Antimontrioxid? Antimontrioxid (Sb\u2082O\u2083) hat ein Molekulargewicht von 291,5, eine Dichte von 5,1 g\/cm\u00b3, einen Schmelzpunkt von 656 \u00b0C und einen Siedepunkt von 1425 \u00b0C. Es 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