Oxid hlinit\u00fd nab\u00edz\u00ed vynikaj\u00edc\u00ed odolnost proti ot\u011bru, korozi, teplot\u011b a erozi a dod\u00e1v\u00e1 se v r\u016fzn\u00fdch tvarech, velikostech a jakostech pro pou\u017eit\u00ed.<\/p>\n
Taven\u00fd oxid hlinit\u00fd se vyr\u00e1b\u00ed v b\u00edl\u00e9, hn\u011bd\u00e9 a \u010dern\u00e9 variant\u011b, p\u0159i\u010dem\u017e ka\u017ed\u00e1 z nich m\u00e1 odli\u0161nou krystalickou strukturu a tvrdost. M\u016f\u017ee b\u00fdt lisov\u00e1n za sucha, za tepla nebo odl\u00e9v\u00e1n do p\u00e1sky p\u0159ed vst\u0159ikov\u00e1n\u00edm nebo lisov\u00e1n\u00edm pro pou\u017eit\u00ed.<\/p>\n
Bauxit je miner\u00e1l hydroxidu hlinit\u00e9ho, kter\u00fd se vyskytuje v tuzemsku i v zahrani\u010d\u00ed a hraje z\u00e1sadn\u00ed hospod\u00e1\u0159skou roli, proto\u017ee poskytuje zdroj oxidu hlinit\u00e9ho pot\u0159ebn\u00e9ho k v\u00fdrob\u011b kovov\u00e9ho hlin\u00edku. Krom\u011b toho m\u00e1 bauxit tak\u00e9 \u0159adu dal\u0161\u00edch vyu\u017eit\u00ed v r\u016fzn\u00fdch pr\u016fmyslov\u00fdch oblastech.<\/p>\n
T\u011b\u017eba bauxitu m\u016f\u017ee m\u00edt ni\u010div\u00e9 dopady na \u017eivotn\u00ed prost\u0159ed\u00ed. Vy\u017eaduje odles\u0148ov\u00e1n\u00ed, masivn\u00ed zne\u010di\u0161t\u011bn\u00ed prachem a vytv\u00e1\u0159en\u00ed rozs\u00e1hl\u00fdch pustin nevhodn\u00fdch pro vegetaci nebo p\u011bstov\u00e1n\u00ed - a je tak\u00e9 nejv\u011bt\u0161\u00edm zdrojem CO2. Krom\u011b toho m\u00e1 v\u00e1\u017en\u00e9 zdravotn\u00ed d\u016fsledky, proto\u017ee doly pot\u0159ebuj\u00ed ke sv\u00e9mu provozu velk\u00e9 mno\u017estv\u00ed vody.<\/p>\n
Bauxit se pou\u017e\u00edv\u00e1 hlavn\u011b k v\u00fdrob\u011b oxidu hlinit\u00e9ho Bayerov\u00fdm procesem, kter\u00fd lze n\u00e1sledn\u011b vyu\u017e\u00edt pro r\u016fzn\u00e9 aplikace v\u010detn\u011b \u017e\u00e1ruvzdorn\u00fdch materi\u00e1l\u016f a sl\u00e9v\u00e1renstv\u00ed, co\u017e jsou kl\u00ed\u010dov\u00e9 komponenty p\u0159i v\u00fdrob\u011b hlin\u00edku a oceli. Krom\u011b toho bauxit obsahuje zna\u010dn\u00e9 mno\u017estv\u00ed galia, kter\u00e9 se v tomto procesu extrahuje pomoc\u00ed roztok\u016f hydroxidu sodn\u00e9ho - nebo se extrahuje jin\u00fdmi zp\u016fsoby, nap\u0159\u00edklad pomoc\u00ed iontom\u011bni\u010dov\u00fdch prysky\u0159ic.<\/p>\n
Zbytky bauxitu lze tak\u00e9 pou\u017e\u00edt jako \u00fa\u010dinnou n\u00e1hradu cementu ve sm\u011bsn\u00fdch cementech, co\u017e zvy\u0161uje jejich pucol\u00e1novou aktivitu i reologick\u00e9 vlastnosti. Studie prok\u00e1zaly, \u017ee v z\u00e1vislosti na slo\u017een\u00ed lze t\u00edmto zbytkem nahradit a\u017e 25%-30% objemu sm\u011bsn\u00e9ho cementu.<\/p>\n
Australsk\u00fd bauxitov\u00fd pr\u016fmysl za\u017e\u00edv\u00e1 rychl\u00fd rozvoj a v sou\u010dasn\u00e9 dob\u011b se uva\u017euje o n\u011bkolika projektech. Dv\u011b lo\u017eiska, DL130 a Rubble Flat v severoz\u00e1padn\u00ed Tasm\u00e1nii, byla vybr\u00e1na jako povrchov\u00e9 doly pro t\u011b\u017ebu DSO (deferred stripping ore). Ob\u011b lo\u017eiska se nach\u00e1zej\u00ed v lesn\u00edch plant\u00e1\u017e\u00edch jako seskupen\u00e9 zbytky h\u0159eben\u016f o d\u00e9lce jednoho a\u017e dvou kilometr\u016f a brzy by mohla b\u00fdt otev\u0159en\u011b vyt\u011b\u017eena pro v\u00fdrobu DSO (deferred stripping ore).<\/p>\n
Projekt Amrun v severn\u00edm Queenslandu byl schv\u00e1len regula\u010dn\u00edmi org\u00e1ny a jeho t\u011b\u017eba bude zah\u00e1jena po\u010d\u00e1tkem roku 2019. Bauxit z\u00edskan\u00fd z tohoto projektu bude vyu\u017e\u00edv\u00e1n v rafin\u00e9ri\u00edch Weipa a Mozal k v\u00fdrob\u011b oxidu hlinit\u00e9ho a tak\u00e9 bude exportov\u00e1n k dal\u0161\u00edmu vyu\u017eit\u00ed po cel\u00e9m sv\u011bt\u011b. Amrun nab\u00eddne bezpe\u010dn\u00e9 dod\u00e1vky vysoce kvalitn\u00edho bauxitu, kter\u00fd uspokoj\u00ed celosv\u011btovou popt\u00e1vku.<\/p>\n
Hlin\u00edk je nepostradateln\u00fd materi\u00e1l, kter\u00fd se pou\u017e\u00edv\u00e1 v mnoha v\u00fdrobc\u00edch po cel\u00e9m sv\u011bt\u011b, od letadel a automobil\u016f a\u017e po letadla, kter\u00e1 l\u00e9taj\u00ed nad mraky, a elegantn\u00ed automobily. V\u0161estrannost, odolnost a lehk\u00e1 struktura hlin\u00edku z n\u011bj \u010din\u00ed ide\u00e1ln\u00ed materi\u00e1l pro n\u00e1\u0161 ka\u017edodenn\u00ed \u017eivot, kter\u00fd vy\u017eaduje mnoho aplikac\u00ed v r\u016fzn\u00fdch pr\u016fmyslov\u00fdch odv\u011btv\u00edch a aplikac\u00edch. Jeho nekone\u010dn\u011b recyklovateln\u00e9 vlastnosti nav\u00edc d\u011blaj\u00ed z hlin\u00edku neoceniteln\u00e9ho spojence pro podniky, kter\u00e9 se sna\u017e\u00ed sni\u017eovat emise uhl\u00edku a z\u00e1rove\u0148 roz\u0161i\u0159ovat zisky a sv\u00e9 hospod\u00e1\u0159sk\u00e9 v\u00fdsledky.<\/p>\n
Izola\u010dn\u00ed dr\u00e1t je hlavn\u00ed formou hlin\u00edkov\u00e9ho \u0161rotu. T\u00edmto dr\u00e1tem lze zapojit mobiln\u00ed telefony, ploch\u00e9 televizory, notebooky, po\u010d\u00edta\u010dov\u00e9 monitory a mnoho dal\u0161\u00edch elektrick\u00fdch za\u0159\u00edzen\u00ed. Izola\u010dn\u00ed hlin\u00edkov\u00fd dr\u00e1t se \u010dasto prod\u00e1v\u00e1 v recykla\u010dn\u00edch centrech a na vrakovi\u0161t\u00edch d\u00edky sv\u00e9mu leskl\u00e9mu st\u0159\u00edb\u0159it\u00e9mu vzhledu a obsahu hlin\u00edku 99% - snadno se pozn\u00e1 podle leskl\u00e9ho st\u0159\u00edb\u0159it\u00e9ho vzhledu a leskl\u00e9ho st\u0159\u00edb\u0159it\u00e9ho odst\u00ednu - p\u0159i\u010dem\u017e izolace se snadno odloupne a odhal\u00ed pod n\u00ed \u010dist\u00fd hlin\u00edk, kter\u00fd \u010dasto p\u0159ed\u010d\u00ed i ve\u0161ker\u00e9 ocelov\u00e9 dr\u00e1ty, kter\u00e9 jsou do n\u011bj p\u0159im\u00edch\u00e1ny!<\/p>\n
Kovov\u00fd odpad se \u010dasto pou\u017e\u00edv\u00e1 jako ob\u011btn\u00ed elektrody v Hall-Heroultov\u011b elektrolytick\u00e9m procesu v\u00fdroby vysoce \u010dist\u00e9ho sekund\u00e1rn\u00edho hlin\u00edku, av\u0161ak b\u011bhem elektrol\u00fdzy m\u016f\u017ee snadno doj\u00edt k jeho kontaminaci oxidem \u017eeleza, co\u017e vede ke zna\u010dn\u00fdm ztr\u00e1t\u00e1m kvality a zhor\u0161en\u00ed kvality v\u00fdrobku. Inertn\u00ed slitinov\u00e9 anody tvo\u0159en\u00e9 \u017eelezn\u00fdm \u0161rotem a hlin\u00edkem p\u0159edstavuj\u00ed atraktivn\u00ed udr\u017eiteln\u00e9 \u0159e\u0161en\u00ed, kter\u00e9 m\u016f\u017ee pomoci sn\u00ed\u017eit z\u00e1kal, \u00farove\u0148 CHSK a barvu v procesu EC flotace \u00fa\u010dinn\u011bji ne\u017e samotn\u00e9 anody na b\u00e1zi m\u011bdi.<\/p>\n
Aby byla zaji\u0161t\u011bna kvalita kone\u010dn\u00e9ho v\u00fdrobku, je nezbytn\u00e9 pe\u010dliv\u011b sledovat suroviny a v\u00fdrobn\u00ed procesy. P\u0159enosn\u00e9 rentgenov\u00e9 fluorescen\u010dn\u00ed analyz\u00e1tory se staly v hlin\u00edk\u00e1\u0159sk\u00e9m pr\u016fmyslu nesm\u00edrn\u011b popul\u00e1rn\u00ed pro svou schopnost detekovat ne\u010distoty ve vstupn\u00edch i v\u00fdstupn\u00edch produktech, co\u017e pom\u00e1h\u00e1 identifikovat potenci\u00e1ln\u011b nebezpe\u010dn\u00e9 kontaminanty, zefektivnit v\u00fdrobn\u00ed proces, sn\u00ed\u017eit provozn\u00ed n\u00e1klady a zajistit soulad s p\u0159edpisy na ochranu \u017eivotn\u00edho prost\u0159ed\u00ed a bezpe\u010dnostn\u00edmi normami.<\/p>\n
P\u0159i rafinaci bauxitu na hlin\u00edk vznik\u00e1 jako vedlej\u0161\u00ed produkt p\u0159ebytek oxidu k\u0159emi\u010dit\u00e9ho. Chcete-li jej \u00fa\u010dinn\u011bji likvidovat a zv\u00fd\u0161it energetickou \u00fa\u010dinnost, sm\u011brujte 1\/3 tohoto vedlej\u0161\u00edho produktu k\u0159em\u00edku p\u0159es sl\u00e9v\u00e1rny hlin\u00edkov\u00fdch slitk\u016f a tav\u00edrny elektrod - hlin\u00edkov\u00e9ho \u0161rotu; t\u00edm se odstran\u00ed ve\u0161ker\u00fd vedlej\u0161\u00ed produkt k\u0159em\u00edk a z\u00e1rove\u0148 se dos\u00e1hne v\u011bt\u0161\u00edch \u00faspor energie a vy\u0161\u0161\u00ed \u00fa\u010dinnosti. Tato metoda simuluje skute\u010dnou rafinaci pomoc\u00ed Bayerova nebo Hall-Heroultova procesu s pou\u017eit\u00edm p\u0159edp\u00e1len\u00fdch uhl\u00edkov\u00fdch anod nam\u00edsto v\u00fdroby vlastn\u00edch.<\/p>\n
Roztok oxidu hlinit\u00e9ho neboli rozpt\u00fdlen\u00fd oxid hlinit\u00fd lze rafinovat na \u010dist\u00e9 hlin\u00edkov\u00e9 ingoty pro pr\u016fmyslov\u00e9 pou\u017eit\u00ed v jedn\u00e9 ze dvou sl\u00e9v\u00e1ren hlin\u00edkov\u00fdch ingot\u016f, kter\u00e9 vy\u017eaduj\u00ed stejn\u00e9 mno\u017estv\u00ed elektrick\u00e9 energie na jednotku vyroben\u00e9ho oxidu hlinit\u00e9ho.<\/p>\n
Recyklovan\u00fd hlin\u00edk m\u00e1 oproti v\u00fdrob\u011b prim\u00e1rn\u00edho hlin\u00edku elektrol\u00fdzou n\u011bkolik v\u00fdhod. P\u0159edev\u0161\u00edm jeho v\u00fdroba v\u00fdrazn\u011b \u0161et\u0159\u00ed spot\u0159ebu energie, sni\u017euje emise sklen\u00edkov\u00fdch plyn\u016f a z\u00e1rove\u0148 \u0161et\u0159\u00ed vz\u00e1cn\u00e9 p\u0159\u00edrodn\u00ed zdroje. Recyklovan\u00fd hlin\u00edk lze nav\u00edc recyklovat donekone\u010dna, ani\u017e by do\u0161lo ke ztr\u00e1t\u011b kvality nebo vzniku dodate\u010dn\u00fdch n\u00e1klad\u016f na zdroje - jedn\u00e1 se o ned\u00edlnou sou\u010d\u00e1st recyklace v kovopr\u016fmyslu, kter\u00e1 sni\u017euje popt\u00e1vku spot\u0159ebitel\u016f, \u010d\u00edm\u017e se sni\u017euj\u00ed n\u00e1klady na t\u011b\u017ebu\/minov\u00e1n\u00ed\/odpadov\u00e9 hospod\u00e1\u0159stv\u00ed a z\u00e1rove\u0148 se \u0161et\u0159\u00ed spot\u0159eba energie, nebo\u0165 se na jeho v\u00fdrobu spot\u0159ebuje a\u017e o 95% m\u00e9n\u011b energie ne\u017e p\u0159i t\u011b\u017eb\u011b suroviny! Recyklace tak\u00e9 v\u00fdznamn\u011b p\u0159isp\u00edv\u00e1 k \u00faspo\u0159e energie ve srovn\u00e1n\u00ed s v\u00fdrobou prim\u00e1rn\u00edho hlin\u00edku ze surovin; dal\u0161\u00ed \u00faspora energie je zaji\u0161t\u011bna sn\u00ed\u017een\u00edm emis\u00ed sklen\u00edkov\u00fdch plyn\u016f a tak\u00e9 \u0161et\u0159en\u00edm p\u0159\u00edrodn\u00edch zdroj\u016f a tak\u00e9 \u0161et\u0159en\u00edm t\u011b\u017eby\/v\u00fdroby d\u00edky v\u00fdrob\u011b recyklovan\u00e9ho hlin\u00edku nam\u00edsto p\u0159\u00edmo vyt\u011b\u017een\u00fdch surovin.<\/p>\n
Ingoty slou\u017e\u00ed jako v\u00fdchoz\u00ed materi\u00e1l pro v\u0161echny kov\u00e1\u0159sk\u00e9 pr\u00e1ce ve h\u0159e a pou\u017e\u00edvaj\u00ed se k v\u00fdrob\u011b zbran\u00ed, n\u00e1stroj\u016f a padac\u00edch dve\u0159\u00ed. Dvojit\u00e9 ingoty lze tak\u00e9 kombinovat a vytv\u00e1\u0159et tak dvojit\u00e9 \u017eelezn\u00e9 pruty (nebo pln\u00e9 zlat\u00e9 pruty). Lze je tak\u00e9 opracov\u00e1vat na kovadlin\u011b a vyr\u00e1b\u011bt z nich p\u0159edm\u011bty, jako jsou bloky a brn\u011bn\u00ed.<\/p>\n
V\u00fdroba ingot\u016f je ned\u00edlnou sou\u010d\u00e1st\u00ed ka\u017ed\u00e9ho pr\u016fmyslov\u00e9ho z\u00e1vodu a vy\u017eaduje velk\u00e9 mno\u017estv\u00ed elektrick\u00e9 energie a spot\u0159ebu uhl\u00ed\/\u017eelezn\u00e9 rudy pro provoz pece, p\u0159i\u010dem\u017e n\u011bkter\u00e9 typy ingot\u016f mohou produkovat toxick\u00fd odpad, kter\u00fd vy\u017eaduje zvl\u00e1\u0161tn\u00ed postupy p\u0159i manipulaci\/likvidaci - co\u017e jsou z\u00e1sadn\u00ed prvky bezpe\u010dnosti z\u00e1vodu a dodr\u017eov\u00e1n\u00ed pr\u00e1vn\u00edch p\u0159edpis\u016f v oblasti \u017eivotn\u00edho prost\u0159ed\u00ed.<\/p>\n
Technologie odl\u00e9v\u00e1n\u00ed ingot\u016f Wagstaff(tm) LHC (Low Head Composite Rolling) m\u016f\u017ee v\u00fdznamn\u011b sn\u00ed\u017eit v\u00fdrobn\u00ed n\u00e1klady sn\u00ed\u017een\u00edm spot\u0159eby energie a oleje a zv\u00fd\u0161it v\u00fdt\u011b\u017enost v j\u00e1m\u011b minimalizac\u00ed bobtn\u00e1n\u00ed tup\u00e9ho ingotu a dal\u0161\u00edho odpadu p\u0159i zpracov\u00e1n\u00ed.<\/p>\n
Technologie Wagstaff APEX (Application Specific Ingot Casting Technology) je vybavena recepturou \u0159\u00edzen\u00fdm oh\u00fdb\u00e1n\u00edm otvoru formy, kter\u00e9 optimalizuje tvar ingotu pro t\u00e9m\u011b\u0159 v\u0161echny slitiny a rychlosti lit\u00ed, \u010d\u00edm\u017e v\u00fdrazn\u011b sni\u017euje bobtn\u00e1n\u00ed tup\u00e9 \u010d\u00e1sti, co\u017e vede k vy\u0161\u0161\u00ed kvalit\u011b a v\u011bt\u0161\u00ed plochosti ingot\u016f.<\/p>\n
Z ingot\u016f lze vyrobit z\u00e1kladn\u00ed p\u0159edm\u011bty, jako jsou kovov\u00e9 krump\u00e1\u010de nebo sekery, ale lze je tak\u00e9 roztavit a vytvo\u0159it z nich slo\u017eit\u011bj\u0161\u00ed p\u0159edm\u011bty, jako jsou \u0159emeslnick\u00e9 stoly nebo pracovn\u00ed stoly. Ingoty jsou d\u00e1le nezbytn\u00e9 k v\u00fdrob\u011b P\u00e1l\u016f, kter\u00e9 lze vozit po sv\u011bt\u011b jako pozemn\u00ed nebo l\u00e9taj\u00edc\u00ed dr\u017e\u00e1ky, a H\u0159eb\u00edk\u016f, kter\u00e9 je t\u0159eba vytvo\u0159it pro p\u0159edm\u011bty vy\u0161\u0161\u00ed \u00farovn\u011b a pracovn\u00ed stoly v z\u00e1kladn\u011b.<\/p>","protected":false},"excerpt":{"rendered":"
Alumina offers excellent abrasion, corrosion, temperature and erosion resistance and comes in various shapes, sizes and grades for use. Fused […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"footnotes":""},"categories":[6],"tags":[],"class_list":["post-48","post","type-post","status-publish","format-standard","hentry","category-alumina-knowledge"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/aluminaceramics.net\/cs\/wp-json\/wp\/v2\/posts\/48","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/aluminaceramics.net\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/aluminaceramics.net\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/aluminaceramics.net\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/aluminaceramics.net\/cs\/wp-json\/wp\/v2\/comments?post=48"}],"version-history":[{"count":1,"href":"https:\/\/aluminaceramics.net\/cs\/wp-json\/wp\/v2\/posts\/48\/revisions"}],"predecessor-version":[{"id":49,"href":"https:\/\/aluminaceramics.net\/cs\/wp-json\/wp\/v2\/posts\/48\/revisions\/49"}],"wp:attachment":[{"href":"https:\/\/aluminaceramics.net\/cs\/wp-json\/wp\/v2\/media?parent=48"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/aluminaceramics.net\/cs\/wp-json\/wp\/v2\/categories?post=48"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/aluminaceramics.net\/cs\/wp-json\/wp\/v2\/tags?post=48"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}