Pengaruh Penambahan Naoh Terhadap Proses Ekstraksi Lithium Pada Lumpur Sidoarjo

Tangguh, Adha Bangkit Banyubiru (2016) Pengaruh Penambahan Naoh Terhadap Proses Ekstraksi Lithium Pada Lumpur Sidoarjo. Undergraduate thesis, Institut Teknologi Sepuluh Nopember Surabaya.

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Abstract

Lithium merupakan suatu mineral yang banyak digunakan pada pembuatan baterai yang dapat di isi ulang (rechargeable).Pada penelitian ini dilakukan proses ekstraksi Lithium melalui metode Hydrometallurgi dengan variasi penambahan NaOH untuk mengetahui pengaruhnya terhadap efisiensi pada proses ekstraksi. Penambahan NaOH di lakukan dengan variasi NaOH 0.1 M, NaOH 0.3 M dan NaOH 0.5M. Proses penambahan ini dilakukan dengan pencampuran variasi penambahan NaOH sebanyak 200ml dan lumpur kering Sidoarjo yang memiliki ukuran 80 μm. Setelah proses pencampuran hingga menjadi slurry, slurry dipanaskan pada temperatur 85oC selama 1 jam. Dari pengujian XRD menunjukkan terbentuknya Li2CO3 dengan intensitas tertinggi yaitu pada peak posisi 2θ 45.7912 intensitasnya 1000 pada NaOH 0.5M. Pada pengujian SEM, terlihat Li2CO3 terindikasi berbentuk kubus. Namun pada pengujian ICP terjadi penurunan efisiensi dengan efisiensi terkecil sebesar 26.9% pada penambahan NaOH 0.5 M dan efisiensi terbesar sebesar 35.3% pada penambahan NaOH 0.1M. =========================================================== Lithium is a mineral used in the manufacture of rechargeable batteries. On the research of Lithium extraction process is done through the Hydrometallurgi method with the addition of NaOH to know its effect on efficiency in the extraction process. The addition of NaOH in done with variation of NaOH 0.1 M, NaOH 0.3 M and NaOH 0.5 M. This process is done by mixing variations of the addition of as many as 200 ml of NaOH and Dried lumpur Sidoarjo that has a size of 80 μm. After mixing become a slurry, slurry is heated at a temperature of 85oC for 1 hour. From testing XRD showed the formation of Li2CO3 with the highest intensity at peak position 2θ 45.7912 which intensity 1000 in 0.5 M NaOH. On testing SEM, There is Li2CO3 who looks like cube. However on testing ICP occurs a decrease in efficiency with the smallest efficiency of 26.9% in addition of NaOH 0.3 M and the largest efficiency amounting to 21.9% in addition of NaOH 0.1 M.

Item Type: Thesis (Undergraduate)
Additional Information: RSMt 620.118 Tan p-1
Uncontrolled Keywords: Ekstraksi, Hydrometallurgi, Lithium, Lumpur Sidoarjo
Subjects: T Technology > TA Engineering (General). Civil engineering (General) > TA418.9 Composite materials. Laminated materials.
Divisions: Faculty of Industrial Technology > Material & Metallurgical Engineering > 28201-(S1) Undergraduate Thesis
Depositing User: EKO BUDI RAHARJO
Date Deposited: 26 Nov 2019 07:16
Last Modified: 26 Nov 2019 07:16
URI: http://repository.its.ac.id/id/eprint/72048

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