{"id":5610,"date":"2025-10-10T18:17:45","date_gmt":"2025-10-11T02:17:45","guid":{"rendered":"https:\/\/3waycatalyst.com\/?p=5610"},"modified":"2025-10-14T01:08:10","modified_gmt":"2025-10-14T09:08:10","slug":"how-much-rhodium-is-in-a-catalytic-converter","status":"publish","type":"post","link":"https:\/\/3waycatalyst.com\/cs\/how-much-rhodium-is-in-a-catalytic-converter\/","title":{"rendered":"Kolik rhodia je v katalyz\u00e1toru?"},"content":{"rendered":"<p>Rhodium (Rh) je jeden z nejvz\u00e1cn\u011bj\u0161\u00edch a nejcenn\u011bj\u0161\u00edch drah\u00fdch kov\u016f, kter\u00e9 se nach\u00e1zej\u00ed v katalyz\u00e1torech. P\u0159esto\u017ee je p\u0159\u00edtomen pouze ve velmi mal\u00e9m mno\u017estv\u00ed, hraje obrovskou roli p\u0159i \u010di\u0161t\u011bn\u00ed v\u00fdfukov\u00fdch plyn\u016f vozidel \u2013 a je to jeden z hlavn\u00edch d\u016fvod\u016f, pro\u010d jsou katalyz\u00e1tory \u010dasto ter\u010dem kr\u00e1de\u017e\u00ed. V tomto \u010dl\u00e1nku se pod\u00edv\u00e1me na to, kolik rhodia je v katalyz\u00e1toru obsa\u017eeno, co ovliv\u0148uje jeho mno\u017estv\u00ed a pro\u010d je tak d\u016fle\u017eit\u00e9.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"1-what-is-rhodium-\">1. Co je rhodium?<\/h2>\n\n\n\n<p>Rhodium je&nbsp;<strong>kov platinov\u00e9 skupiny (PGM)<\/strong>, spolu s platinou (Pt) a palladiem (Pd). Je zn\u00e1m\u00fd svou v\u00fdjime\u010dnou schopnost\u00ed&nbsp;<strong>sni\u017euj\u00ed oxidy dus\u00edku (NO\u2093)<\/strong>&nbsp;\u2014 jeden z nej\u0161kodliv\u011bj\u0161\u00edch zne\u010di\u0161\u0165uj\u00edc\u00edch l\u00e1tek emitovan\u00fdch spalovac\u00edmi motory.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Symbol:<\/strong>&nbsp;Rh<\/li>\n\n\n\n<li><strong>Bod t\u00e1n\u00ed:<\/strong>&nbsp;1 964 \u00b0C (3 567 \u00b0F)<\/li>\n\n\n\n<li><strong>Barva:<\/strong>&nbsp;St\u0159\u00edb\u0159it\u011b b\u00edl\u00e1<\/li>\n\n\n\n<li><strong>Hlavn\u00ed pou\u017eit\u00ed:<\/strong>&nbsp;Automobilov\u00e9 katalyz\u00e1tory (p\u0159es 80 % celosv\u011btov\u00e9 popt\u00e1vky)<\/li>\n<\/ul>\n\n\n\n<p>Rhodium je extr\u00e9mn\u011b vz\u00e1cn\u00e9 \u2013 v zemsk\u00e9 k\u016f\u0159e se nach\u00e1z\u00ed pouze v 0,000037 ppm \u2013 co\u017e z n\u011bj \u010din\u00ed p\u0159ibli\u017en\u011b&nbsp;<strong>100kr\u00e1t vz\u00e1cn\u011bj\u0161\u00ed ne\u017e zlato<\/strong>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"2-the-role-of-rhodium-in-a-catalytic-converter\">2. \u00daloha rhodia v katalyz\u00e1toru<\/h2>\n\n\n\n<p>V&nbsp;<strong><a href=\"https:\/\/3waycatalyst.com\/cs\/three-way-catalytic-converter-twc\/\">t\u0159\u00edcestn\u00fd katalyz\u00e1tor (TWC)<\/a><\/strong>, rhodium spolupracuje s platinou a palladiem k prov\u00e1d\u011bn\u00ed kritick\u00fdch chemick\u00fdch reakc\u00ed:<\/p>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><thead><tr><th>Funkce<\/th><th>O\u0161et\u0159eno plynem<\/th><th>Reakce<\/th><\/tr><\/thead><tbody><tr><td>Sn\u00ed\u017een\u00ed<\/td><td>Oxidy dus\u00edku (NO\u2093)<\/td><td>NO\u2093 \u2192 N\u2082 + O\u2082<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>Rhodium c\u00edl\u00ed konkr\u00e9tn\u011b&nbsp;<strong>NE a NE\u2082<\/strong>..., \u010d\u00edm\u017e je p\u0159em\u011b\u0148uje na ne\u0161kodn\u00fd dus\u00edk (N\u2082) a kysl\u00edk (O\u2082). Bez rhodia by vozidla emitovala velk\u00e9 mno\u017estv\u00ed oxid\u016f dus\u00edku \u2013 hlavn\u00edch p\u0159isp\u011bvatel\u016f ke smogu a kysel\u00fdm de\u0161\u0165\u016fm.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"3-how-much-rhodium-is-actually-inside-a-catalytic-converter-\">3. Kolik rhodia je ve skute\u010dnosti uvnit\u0159 katalyz\u00e1toru?<\/h2>\n\n\n\n<p>P\u0159esn\u00e9 mno\u017estv\u00ed rhodia v katalyz\u00e1toru se li\u0161\u00ed v z\u00e1vislosti na:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Typ vozidla<\/strong>&nbsp;(mal\u00e9 auto vs. n\u00e1kladn\u00ed auto)<\/li>\n\n\n\n<li><strong>Emisn\u00ed normy<\/strong>&nbsp;(Euro 3, Euro 6, EPA Tier 3)<\/li>\n\n\n\n<li><strong>V\u00fdrobce a model<\/strong><\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><thead><tr><th>Typ vozidla<\/th><th>Odhadovan\u00fd obsah rhodia<\/th><\/tr><\/thead><tbody><tr><td>Mal\u00e9 auto<\/td><td>0,05 \u2013 0,10 gram\u016f<\/td><\/tr><tr><td>St\u0159edn\u00ed vozidlo<\/td><td>0,10 \u2013 0,20 gram\u016f<\/td><\/tr><tr><td>Velk\u00e9 SUV nebo n\u00e1kladn\u00ed automobil<\/td><td>0,20 \u2013 0,30 gram\u016f<\/td><\/tr><tr><td>Pr\u016fmyslov\u00e9 nebo dieselov\u00e9 aplikace<\/td><td>0,30 \u2013 0,50 gram\u016f<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>I pouh\u00fdch&nbsp;<strong>0,1 gramu na jednotku<\/strong>, m\u016f\u017ee b\u00fdt hodnota zna\u010dn\u00e1. Vzhledem k tomu, \u017ee ceny rhodia p\u0159esahuj\u00ed&nbsp;<strong>400 dolar\u016f za gram<\/strong>&nbsp;(a vzhledem k tomu, \u017ee v posledn\u00edch letech dos\u00e1hla vrcholu nad 25 000 dolar\u016f za unci), je snadn\u00e9 pochopit, pro\u010d jsou zpracovatel\u00e9 cenn\u00ed.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"4-rhodium-content-vs-other-precious-metals\">4. Obsah rhodia vs. jin\u00e9 drah\u00e9 kovy<\/h2>\n\n\n\n<figure class=\"wp-block-table is-style-stripes\"><table class=\"has-fixed-layout\"><thead><tr><th>Kov<\/th><th>Typick\u00e1 \u010d\u00e1stka (na p\u0159evodn\u00edk)<\/th><th>Pr\u016fm\u011brn\u00e1 cena (USD\/g)<\/th><th>Hlavn\u00ed funkce<\/th><\/tr><\/thead><tbody><tr><td>Platina (Pt)<\/td><td>1\u20132 gramy<\/td><td>30\u201340 dolar\u016f<\/td><td>Oxidace (CO, HC)<\/td><\/tr><tr><td>Palladium (Pd)<\/td><td>2\u20137 gram\u016f<\/td><td>25\u201335 dolar\u016f<\/td><td>Oxidace (CO, HC)<\/td><\/tr><tr><td>Rhodium (Rh)<\/td><td>0,05\u20130,3 gramu<\/td><td>400\u2013500 dolar\u016f<\/td><td>Redukce (NO\u2093)<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>I kdy\u017e je obsah rhodia mnohem ni\u017e\u0161\u00ed, p\u0159edstavuje nejvy\u0161\u0161\u00ed procentu\u00e1ln\u00ed pod\u00edl celkov\u00e9ho mno\u017estv\u00ed drah\u00fdch kov\u016f.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"5-factors-affecting-rhodium-quantity\">5. Faktory ovliv\u0148uj\u00edc\u00ed mno\u017estv\u00ed rhodia<\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Emisn\u00ed p\u0159edpisy:<\/strong>&nbsp;P\u0159\u00edsn\u011bj\u0161\u00ed normy (nap\u0159. Euro 6, EPA Tier 3) vy\u017eaduj\u00ed v\u00edce rhodia pro sn\u00ed\u017een\u00ed emis\u00ed NO\u2093.<\/li>\n\n\n\n<li><strong>Typ vozidla:<\/strong>&nbsp;V\u011bt\u0161\u00ed motory pot\u0159ebuj\u00ed v\u011bt\u0161\u00ed povrch katalyz\u00e1toru, a tedy v\u00edce rhodia.<\/li>\n\n\n\n<li><strong>N\u00e1vrh p\u0159evodn\u00edku:<\/strong>&nbsp;Modern\u00ed m\u011bni\u010de \u010dasto pou\u017e\u00edvaj\u00ed optimalizovan\u00e9 pom\u011bry (Pd:Rh nebo Pt:Rh) pro vyv\u00e1\u017een\u00ed n\u00e1klad\u016f a v\u00fdkonu.<\/li>\n\n\n\n<li><strong>Strategie v\u00fdrobce:<\/strong>&nbsp;N\u011bkter\u00e9 automobilky pou\u017e\u00edvaj\u00ed v\u00edce palladia nebo platiny, aby sn\u00ed\u017eily n\u00e1klady na rhodium.<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"6-why-rhodium-is-so-valuable\">6. Pro\u010d je rhodium tak cenn\u00e9<\/h2>\n\n\n\n<p>Cena rhodia je ovlivn\u011bna&nbsp;<strong>extr\u00e9mn\u00ed vz\u00e1cnost<\/strong>,&nbsp;<strong>vysok\u00e1 popt\u00e1vka po kontrole emis\u00ed<\/strong>a&nbsp;<strong>omezen\u00e1 nab\u00eddka t\u011b\u017eby<\/strong>&nbsp;\u2014 v\u011bt\u0161inou z Jihoafrick\u00e9 republiky a Ruska.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Net\u011b\u017e\u00ed se p\u0159\u00edmo; je to vedlej\u0161\u00ed produkt t\u011b\u017eby platiny a niklu.<\/li>\n\n\n\n<li>Celosv\u011btov\u00e1 ro\u010dn\u00ed produkce je&nbsp;<strong>m\u00e9n\u011b ne\u017e 30 tun<\/strong>, ve srovn\u00e1n\u00ed s v\u00edce ne\u017e 3 000 tunami zlata.<\/li>\n\n\n\n<li>Pr\u016fmyslov\u00e1 popt\u00e1vka (automobilov\u00fd pr\u016fmysl + chemick\u00e9 katalyz\u00e1tory) udr\u017euje ceny volatiln\u00ed.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"7-rhodium-recovery-and-recycling\">7. Z\u00edsk\u00e1v\u00e1n\u00ed a recyklace rhodia<\/h2>\n\n\n\n<p>P\u0159i recyklaci star\u00fdch konvertor\u016f specializovan\u00e9 rafinerie extrahuj\u00ed drah\u00e9 kovy prost\u0159ednictv\u00edm&nbsp;<strong>taven\u00ed a chemick\u00e1 separace<\/strong>Jedna tuna pou\u017eit\u00fdch katalyz\u00e1tor\u016f m\u016f\u017ee poskytnout:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Platina:<\/strong>&nbsp;~1 500\u20132 000 gram\u016f<\/li>\n\n\n\n<li><strong>Palladium:<\/strong>&nbsp;~2 000\u20133 000 gram\u016f<\/li>\n\n\n\n<li><strong>Rhodium:<\/strong>&nbsp;~200\u2013300 gram\u016f<\/li>\n<\/ul>\n\n\n\n<p>Z tohoto d\u016fvodu je recyklace nezbytn\u00fdm zdrojem rhodia \u2013 pom\u00e1h\u00e1 sni\u017eovat pot\u0159ebu nov\u00e9 t\u011b\u017eby.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/3waycatalyst.com\/cs\/recycling-catalytic-converters-how-precious-metals-like-platinum-and-rhodium-are-recovered\/\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"635\" src=\"https:\/\/3waycatalyst.com\/wp-content\/uploads\/2025\/09\/Recycling-Catalytic-Converters01.jpg\" alt=\"Recyklace katalyz\u00e1tor\u016f: Z\u00edsk\u00e1v\u00e1n\u00ed platiny, palladia a rhodia\" class=\"wp-image-5260\" title=\"\" srcset=\"https:\/\/3waycatalyst.com\/wp-content\/uploads\/2025\/09\/Recycling-Catalytic-Converters01.jpg 1024w, https:\/\/3waycatalyst.com\/wp-content\/uploads\/2025\/09\/Recycling-Catalytic-Converters01-300x186.jpg 300w, https:\/\/3waycatalyst.com\/wp-content\/uploads\/2025\/09\/Recycling-Catalytic-Converters01-768x476.jpg 768w, https:\/\/3waycatalyst.com\/wp-content\/uploads\/2025\/09\/Recycling-Catalytic-Converters01-18x12.jpg 18w, https:\/\/3waycatalyst.com\/wp-content\/uploads\/2025\/09\/Recycling-Catalytic-Converters01-600x372.jpg 600w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a><figcaption class=\"wp-element-caption\"><a href=\"https:\/\/3waycatalyst.com\/cs\/recycling-catalytic-converters-how-precious-metals-like-platinum-and-rhodium-are-recovered\/\">Recyklace katalyz\u00e1tor\u016f: Z\u00edsk\u00e1v\u00e1n\u00ed platiny, palladia a rhodia<\/a><\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"8-real-world-value-example\">8. P\u0159\u00edklad re\u00e1ln\u00e9 hodnoty<\/h2>\n\n\n\n<p>P\u0159edpokl\u00e1dejme, \u017ee pr\u016fm\u011brn\u00fd katalyz\u00e1tor obsahuje&nbsp;<strong>0,15 g rhodia<\/strong>&nbsp;a&nbsp;<strong>rhodium stoj\u00ed 450 dolar\u016f za gram<\/strong>:<\/p>\n\n\n\n<p>0,15 g \u00d7 450 $ =&nbsp;<strong>Hodnota rhodia 67,50 dolar\u016f<\/strong>&nbsp;(pouze z rhodia!)<\/p>\n\n\n\n<p>P\u0159ipo\u010dt\u011bte platinu a palladium a celkov\u00e1 hodnota kovu by mohla snadno p\u0159ekro\u010dit 150\u2013300 dolar\u016f na konvertor.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"9-future-trends-in-rhodium-usage\">9. Budouc\u00ed trendy ve vyu\u017eit\u00ed rhodia<\/h2>\n\n\n\n<p>Aby v\u00fdrobci sn\u00ed\u017eili n\u00e1klady, pou\u017e\u00edvaj\u00ed tyto metody:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Zvy\u0161ov\u00e1n\u00ed vyu\u017e\u00edv\u00e1n\u00ed&nbsp;<strong>palladium<\/strong>&nbsp;jako n\u00e1hrada.<\/li>\n\n\n\n<li>Rozv\u00edjen\u00ed&nbsp;<strong>katalyz\u00e1tory bez rhodia<\/strong>&nbsp;s pou\u017eit\u00edm obecn\u00fdch kov\u016f nebo perovskitov\u00fdch materi\u00e1l\u016f.<\/li>\n\n\n\n<li>Optimalizace&nbsp;<strong>n\u00e1vrhy katalytick\u00fdch vrstev<\/strong>&nbsp;dos\u00e1hnout vy\u0161\u0161\u00ed \u00fa\u010dinnosti s ni\u017e\u0161\u00edm Rh.<\/li>\n<\/ul>\n\n\n\n<p>P\u0159esto rhodium z\u016fst\u00e1v\u00e1&nbsp;<strong>nepostradateln\u00fd<\/strong>&nbsp;pro vysoce v\u00fdkonn\u00e9 a n\u00edzkoemisn\u00ed motory.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"conclusion\">Z\u00e1v\u011br<\/h2>\n\n\n\n<p>Rhodium sice m\u016f\u017ee tvo\u0159it jen zlomek hmotnosti katalyz\u00e1toru, ale jeho dopad \u2013 jak na \u017eivotn\u00ed prost\u0159ed\u00ed, tak na ekonomiku \u2013 je obrovsk\u00fd. S m\u00e9n\u011b ne\u017e \u010dtvrt gramu rhodia ka\u017ed\u00fd katalyz\u00e1tor pom\u00e1h\u00e1 sni\u017eovat \u0161kodliv\u00e9 emise NO\u2093 a p\u0159isp\u00edv\u00e1 k \u010dist\u0161\u00edmu ovzdu\u0161\u00ed. Pochopen\u00ed role a hodnoty rhodia zd\u016fraz\u0148uje, pro\u010d jsou katalyz\u00e1tory jak\u2026&nbsp;<strong>technologick\u00e9 z\u00e1zraky<\/strong>&nbsp;a&nbsp;<strong>aktiva s vysokou hodnotou<\/strong>.<\/p>\n\n\n\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>Rhodium v \u200b\u200bkatalyz\u00e1torech pom\u00e1h\u00e1 redukovat \u0161kodliv\u00e9 oxidy dus\u00edku na ne\u0161kodn\u00e9 plyny. P\u0159esto\u017ee se pou\u017e\u00edv\u00e1 v mal\u00e9m mno\u017estv\u00ed, je to nejcenn\u011bj\u0161\u00ed drah\u00fd kov uvnit\u0159.<\/p>","protected":false},"author":1,"featured_media":5611,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"googlesitekit_rrm_CAowgdPcCw:productID":"","footnotes":""},"categories":[98],"tags":[1280,1282,1205,1281,1283],"class_list":["post-5610","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-guide","tag-catalytic-converter-precious-metals","tag-catalytic-converter-rhodium-content","tag-platinum-palladium-rhodium","tag-rhodium-in-catalytic-converter","tag-rhodium-value"],"_links":{"self":[{"href":"https:\/\/3waycatalyst.com\/cs\/wp-json\/wp\/v2\/posts\/5610","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/3waycatalyst.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/3waycatalyst.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/3waycatalyst.com\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/3waycatalyst.com\/cs\/wp-json\/wp\/v2\/comments?post=5610"}],"version-history":[{"count":0,"href":"https:\/\/3waycatalyst.com\/cs\/wp-json\/wp\/v2\/posts\/5610\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/3waycatalyst.com\/cs\/wp-json\/wp\/v2\/media\/5611"}],"wp:attachment":[{"href":"https:\/\/3waycatalyst.com\/cs\/wp-json\/wp\/v2\/media?parent=5610"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/3waycatalyst.com\/cs\/wp-json\/wp\/v2\/categories?post=5610"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/3waycatalyst.com\/cs\/wp-json\/wp\/v2\/tags?post=5610"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}