PENENTUAN KADAR AG DAN CU SEBAGAI PENGOTOR LOGAM EMAS DENGAN METODE SIANIDASI MENGGUNAKAN ARANG AKTIF BAMBU KUNING

Sitanggang, Willy F. (2013) PENENTUAN KADAR AG DAN CU SEBAGAI PENGOTOR LOGAM EMAS DENGAN METODE SIANIDASI MENGGUNAKAN ARANG AKTIF BAMBU KUNING. Undergraduate thesis, UNIMED.

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Abstract

Emas merupakan logam mulia yang bersifat inert yang susah dilarutkan dan direaksikan, emas hanya akan mudah larut dalam akuaregia, dan sianida. Penelitian ini bertujuan untuk meningkatkan kemurnian/kadar logam emas dengan memanfaatkan arang aktif bambu kuning sebagai adsorben dalam penyerapan logam Ag dan Cu sebagai pengotor emas. Pada penelitian ini digunakan bahan bijih logam emas yang diperoleh dari desa sawit seberang kabupaten langkat, Sumatera Utara. Dengan tahapan penelitian; pembuatan arang aktif bambu kuning sebagai adsorben, pelarutan bijih logam emas dengan metode sianidasi, pemurnian logam emas dengan penambahan karbon aktif bambu kuning, dan selanjutnya dilakukan uji kandungan logam Ag dan Cu yang teradsorbsi. Dari penelitian yang dilakukan diperoleh data bahwa arang aktif bambu kuning mampu meningkatkan kemurnian logam emas, dimana kadar logam Ag pada sampel awal menurun setelah penambahan arang aktif dari 12.82% menjadi 0.045%, dan penurunan kadar logam Cu dari 3.23% menjadi 0.068%. hasil optimum ini diperoleh pada penambahan arang aktif dengan massa 5 gram.

Item Type: Thesis (Undergraduate)
Contributors:
ContributionNameNIDN/NIDK
Thesis advisorNauli, Rahmat19660607 199103 1 001
Call Number: 546.656 Sit p
Keywords: Arang; Bambu; Abu; Kalium; Air; Karbon; Atom; Spektometri; Temperatur
Subjects: Q Science > QD Chemistry
Divisions: Fakultas Matematika dan Ilmu Pengetahuan Alam > Kimia
Depositing User: Mr Muhammad Iqbal
Date Deposited: 08 Apr 2016 08:34
URI: http://digilib.unimed.ac.id/id/eprint/10537

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