Peningkatan kadar kalium pada Feldspar dengan metode pertukaran Ion Sistem Bateh

Permana , Eva Diah (2005) Peningkatan kadar kalium pada Feldspar dengan metode pertukaran Ion Sistem Bateh. Undergraduate thesis, FMIPA UNDIP.

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Abstract

Pada umumnya, feldspar di Indonesia mempunyai kualitas yang rendah. Sebagai bahan baku keramik diperlukan feldspar dengan kadar kalsium (Ca) rendah dan kalium (K) yang relatif tinggi, oleh karena itu feldspar tersebut perlu adanya perlakuan untuk meninekatkan kadar kalium (K). Peningkatan kadar kalium (K) dalam feldspar dapat dilakukan dengan metode pertukaran ion sistem batch. Proses pertukaran ion dilakukan secara bertahap yaitu pertukaran ion dengan menggunakan HCI, selanjutnya pertukaran ion dilakukan dengan menggunakan KC1 terhadap H-feldspar. Pertukaran ion dilakukan dengan variasi konsentrasi KCI, pH dan waktu kontak. Karakterisasi sampel dilakukan dengan metode difraksi sinar-X, peningkatan kadar kalium ditentukan secara tidak langsung dengan metode Spektrofotometri Serapan Atom. Disimpulkan bahwa feldspar Desa Clering Kecamatan Keling Jepara merupakan feldspar golongan albit. Kondisi optimum pertukaran ion dicapai pada konsentrasi KCI 20000 ppm, p1-1---.9 dan waktu kontak 3 jam dengan peningkatan kalium sebesar 0,618 miliekuivalen. Commonly, Indonesian feldspar has low quality. Feldspar which has low calcium (Ca) and high potassium (K) contents was needed as raw material in ceramics therefore the quality of Indonesian feldspar must be optimalized by increasing its potassium (K). Increasing of potassium (K) in feldspar could done by ion exchange batch system. The ion exchange process was done indirect method, first using FICI and then KCI solutions. The ion exchange process was conducted by various concentration, p1-1 and contact time. The sample was characterized by X-ray difractometer and potassium (K) content was determined by indirect method using Atomic Absorption Spectrophotometer. It was concluded that the sample was albit feldspar. Optimum condition-of ion exchange was reached at KCi concentration of 20000 ppm, pH=9 and contact time for three hours as well as the increasing of potassium (K) content was 0,618 miliekuivalen.

Item Type:Thesis (Undergraduate)
Subjects:Q Science > QD Chemistry
Divisions:Faculty of Science and Mathematics > Department of Chemistry
ID Code:31067
Deposited By:Mr UPT Perpus 1
Deposited On:14 Nov 2011 10:34
Last Modified:14 Nov 2011 10:34

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