{"id":124549,"date":"2022-12-09T11:21:44","date_gmt":"2022-12-09T03:21:44","guid":{"rendered":"https:\/\/www.alpapowder.com\/124549\/"},"modified":"2022-12-09T11:21:45","modified_gmt":"2022-12-09T03:21:45","slug":"kuvars-kumundan-safsizliklari-gidermek-icin-kalsinasyon-flor-icermeyen-ve-nitrik-asit-lici","status":"publish","type":"post","link":"https:\/\/www.alpapowder.com\/tr\/124549\/","title":{"rendered":"Kuvars kumundan safs\u0131zl\u0131klar\u0131 gidermek i\u00e7in kalsinasyon-flor i\u00e7ermeyen ve nitrik asit li\u00e7i"},"content":{"rendered":"

\"\"<\/p>\n

Dekapaj, kuvarstaki safs\u0131zl\u0131klar\u0131 gidermek i\u00e7in \u00f6nemli bir ara\u00e7t\u0131r, yayg\u0131n olarak kullan\u0131lanlar hidroflorik asit, nitrik asit, hidroklorik asit, s\u00fclf\u00fcrik asit, asetik asit ve oksalik asittir. Asit li\u00e7i i\u00e7in inorganik asitler kullan\u0131ld\u0131\u011f\u0131nda, kuvars kumunun sertli\u011finden dolay\u0131, bu inorganik g\u00fc\u00e7l\u00fc asitlerin konsantrasyonu \u00e7ok y\u00fcksek olmal\u0131d\u0131r. \u00c7o\u011fu durumda asit konsantrasyonu %20-30 aras\u0131ndad\u0131r ve y\u00fcksek asit konsantrasyonu li\u00e7 ekipman\u0131n\u0131 a\u015f\u0131nd\u0131r\u0131r. \u00c7ok g\u00fc\u00e7l\u00fc.<\/p>\n

Yayg\u0131n olarak kullan\u0131lan organik zay\u0131f asit oksalik asittir veya li\u00e7 etkinli\u011fini art\u0131rmak i\u00e7in baz\u0131 zay\u0131f asitlerin bir kombinasyonu kullan\u0131l\u0131r. Asetik asit ayr\u0131ca \u00e7evre i\u00e7in tamamen toksik olmayan ve temel olarak hedef \u00fcr\u00fcn SiO2<\/a>‘ye hi\u00e7bir kayb\u0131 olmayan ba\u015fka bir organik asit li\u00e7 maddesidir. Oksalik asit ve asetik asit eklenerek, kuvars kumundaki kirlilik elementleri etkili bir \u015fekilde giderilebilir. Tersine, oksalik asit Fe, Al ve Mg i\u00e7in daha y\u00fcksek li\u00e7 ve uzakla\u015ft\u0131rma oranlar\u0131na sahipken, asetik asit Ca, K ve Na safs\u0131zl\u0131k elementlerini uzakla\u015ft\u0131rmada daha etkiliydi.<\/p>\n

Kuvars silisyum cevherinin belirli bir yerde kalsinasyonundan sonra, daha sonraki a\u015famada at\u0131k s\u0131v\u0131n\u0131n ar\u0131t\u0131lmas\u0131 kolay olan oksalik asit, asetik asit ve s\u00fclf\u00fcrik asit, kuvars kumundan safs\u0131zl\u0131klar\u0131 gidermek i\u00e7in s\u0131z\u0131nt\u0131 suyu olarak kullan\u0131lm\u0131\u015ft\u0131r. Sonu\u00e7lar \u015funu g\u00f6sterdi:<\/p>\n

(1) Test i\u00e7in se\u00e7ilen kuvars cevherindeki toplam safs\u0131zl\u0131k miktar\u0131 514,82 ppm olup, ana safs\u0131zl\u0131k elementleri Al, Fe, Ca, Na ve safs\u0131zl\u0131k mineralleri mika, nefelin ve demir oksitlerdir.<\/p>\n

(2) Kuvars silika cevheri 900\u00b0C’de 5 saat kalsine edildi\u011finde, dekapaj safs\u0131zl\u0131klar\u0131n\u0131n giderilme oran\u0131 en y\u00fcksektir. Kalsine edilmemi\u015f kuvars cevheri ile kar\u015f\u0131la\u015ft\u0131r\u0131ld\u0131\u011f\u0131nda, kalsine suda s\u00f6nd\u00fcr\u00fclm\u00fc\u015f kuvars cevherinin y\u00fczeyi daha geni\u015f ve daha derin \u00e7atlaklara sahiptir ve y\u00fczeyde farkl\u0131 boyutlarda baz\u0131 delikler da\u011f\u0131lm\u0131\u015ft\u0131r. Bunun nedeni, 573\u00b0C’de kalsine edildi\u011finde, kuvars\u0131n \u03b1 kafesinden \u03b2 kafesine bir faz ge\u00e7i\u015fine u\u011framas\u0131 ve kuvars matrisinin kafes de\u011fi\u015fikli\u011fi nedeniyle genle\u015fmesi ve genle\u015fme oran\u0131n\u0131n yakla\u015f\u0131k %4,5 olmas\u0131 ve hacim geni\u015flemesinin artmas\u0131d\u0131r. \u00e7atlaklara yol a\u00e7abilir. \u00c7atlaklar esas olarak, kuvars matrisi ile safs\u0131zl\u0131k inkl\u00fczyonlar\u0131 aras\u0131ndaki aray\u00fczde meydana gelir ve burada bir\u00e7ok safs\u0131zl\u0131k vard\u0131r. Kuvars cevherinin kalsinasyon ve suyla s\u00f6nd\u00fcrmeden sonra \u00e7atlaklar \u00fcretebilece\u011fi ve \u00e7atlaklar\u0131n kuvars kumu i\u00e7indeki safs\u0131zl\u0131klar\u0131 a\u00e7\u0131\u011fa \u00e7\u0131karaca\u011f\u0131 \u00e7\u0131kar\u0131m\u0131 yap\u0131labilir. , asit li\u00e7i ile safs\u0131zl\u0131k gideriminin etkisini art\u0131rabilir.<\/p>\n

(3) Kalsine kuvars kumu, 80\u00b0C’de 0.6mol\/L oksalik asit, 08mol\/L asetik asit ve 0.6mol\/L s\u00fclf\u00fcrik asit ile 1:5 kat\u0131-s\u0131v\u0131 oran\u0131 ve 300 dev\/dak kar\u0131\u015ft\u0131rma h\u0131z\u0131. Kuvars kumunun y\u0131kanmas\u0131 i\u00e7in en iyi ko\u015ful 4 saattir. Optimum ko\u015fullar alt\u0131nda, Al, Fe, Ca ve Na’n\u0131n en iyi giderim oranlar\u0131 s\u0131ras\u0131yla %68,18, %85,44, %52,62 ve %47,80’dir.<\/p>\n","protected":false},"excerpt":{"rendered":"

Dekapaj, kuvarstaki safs\u0131zl\u0131klar\u0131 gidermek i\u00e7in \u00f6nemli bir ara\u00e7t\u0131r, yayg\u0131n olarak kullan\u0131lanlar hidroflorik asit, nitrik asit, hidroklorik asit, s\u00fclf\u00fcrik asit, asetik asit ve oksalik asittir.<\/p>\n","protected":false},"author":7,"featured_media":124514,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[851],"tags":[],"class_list":["post-124549","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-endustri-haberleri-tr"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.alpapowder.com\/tr\/wp-json\/wp\/v2\/posts\/124549","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.alpapowder.com\/tr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.alpapowder.com\/tr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/tr\/wp-json\/wp\/v2\/users\/7"}],"replies":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/tr\/wp-json\/wp\/v2\/comments?post=124549"}],"version-history":[{"count":0,"href":"https:\/\/www.alpapowder.com\/tr\/wp-json\/wp\/v2\/posts\/124549\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.alpapowder.com\/tr\/wp-json\/wp\/v2\/media\/124514"}],"wp:attachment":[{"href":"https:\/\/www.alpapowder.com\/tr\/wp-json\/wp\/v2\/media?parent=124549"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.alpapowder.com\/tr\/wp-json\/wp\/v2\/categories?post=124549"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.alpapowder.com\/tr\/wp-json\/wp\/v2\/tags?post=124549"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}