PARDAYEV OTABEK TO‘XTAMISHOVICH,

seolit, kaolin, glin, alyuminiy oksid, kremniy oksid, adsorbsiya, mikrog’ovak, metakaolin, dealyuminiylangan metakaolin.

Ushbu tadqiqotda mahalliy xomashyo hisoblangan Angren kaolini asosida Y turdagi seolitni sintez qilish jarayoni o‘rganildi. Tadqiqotning asosiy maqsadi sintez jarayonini takomillashtirish, kristallanish davomiyligini qisqartirish hamda yuqori kristallik darajasiga ega seolit olishning maqbul sharoitlarini aniqlashdan iborat bo‘ldi. Buning uchun kaolin dastlab termik ishlov berish orqali metakaolinga aylantirildi, so‘ngra uning bir qismi dealyuminiylash jarayonidan o‘tkazilib, metakaolin va dealyuminiylangan metakaolin (METDEA) namunalari tayyorlandi. Olingan materiallar gidrotermal sintez usulida Y seolitni hosil qilish uchun alyuminiy va kremniy manbalari sifatida qo‘llanildi. Kristallanish jarayonining turli vaqt oralig‘idagi ta’siri o‘rganilib, seolitning faza tarkibi, kristallanish darajasi va strukturaviy xossalariga baho berildi. Tadqiqot natijalari kristallanish vaqtini optimallashtirish orqali sintez davomiyligini kamaytirish bilan birga yuqori sifatli Y seolit olish mumkinligini ko‘rsatdi. Strukturani yo‘naltiruvchi moddalar (Structure-Directing Agents, SDA) seolit sintezida markaziy rol o‘ynaydi. Ular sintez jarayonida nafaqat maqsadli kristall panjaraning shakllanishini rag‘batlantiradi, balki material g‘ovaklarida zaryadni balanslovchi ionlar sifatida ham ishtirok etadi. Dastlabki tajribaviy ishlar SDA sifatida Na⁺, Ca²⁺ va K⁺ kabi noorganik kationlardan foydalangan. Olingan seolit adsorbsiya, ion almashinish va katalitik jarayonlarda qo‘llash uchun istiqbolli material sifatida tavsiya etiladi.

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