Valdano, Vito (2020) Review Perbandingan Efektivitas Asam Klorida dan Asam Sulfat dalam Atmospheric Leaching Bijih Nikel Laterit Terhadap Senyawa Kimia dan Yield Unsur Ni. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
![[img]](https://repository.its.ac.id/style/images/fileicons/text.png) |
Text
02511640000102_Undergraduate Thesis.pdf - Accepted Version Restricted to Repository staff only Download (4MB) | Request a copy |
Abstract
Leaching merupakan metode yang paling efektif untuk mengolah bijih nikel laterit berkadar rendah untuk memperoleh logam nikel dengan kadar yang tinggi. Potensi penerapan metode hidrometalurgi, baik menggunakan H₂SO₄ atau HCl, dalam leaching pada kondisi tekanan atmosfer dengan tujuan menganalisis senyawa yang terbentuk dan hasil yield Ni dengan parameter konsentrasi asam, rasio liquid/solid, temperatur, dan waktu pada literatur review ini. Senyawa Ni yang terbentuk selama proses leaching berupa NiSO₄ dan NiCl₂. Pada penggunaan larutan HCl pada paramater konsentrasi didapatkan yield tertinggi sebesar 85% pada H₂SO₄ dengan konsentrasi 7 M sedangkan pada HCl didapatkan yield tertinggi sebesar 99% dengan konsentrasi 6,5 M, Pada rasio liquid/solid pada HCl didapatkan 99% Ni pada l/s sebesar 4 dibandingkan dengan H₂SO₄ hanya mendapatkan 85 % Ni pada l/s sebesar 4 . Pada paramater temperatur, hasil yang didapatkan pada leaching menggunakan larutan HCl dengan yield Ni tertinggi yaitu 99% berada pada temperatur sebesar 90℃, dan pada larutan H₂SO₄ didapatkan yield Ni tertinggi sebesar 92% pada temperatur 90℃. Pada parameter waktu hasil terbaik pada ekstraksi Ni menggunakan larutan HCl adalah proses leaching selama 90 menit dengan esktraksi Ni sebesar 99 %, sedangkan pada leaching menggunakan larutan H₂SO₄ didapatkan hasil leaching terbaik pada waktu leaching selama 8 jam dan ekstraksi Ni sebesar 98,2%. Kata Kunci: HCl, H₂SO₄, Laterit, Leaching, Liquid/solid, Temperatur, Waktu, Yield. ============================================================ Leaching is the most effective alternative method for treating laterite nickel ore so that the metal content in laterite nickel ore can be extracted perfectly. The potential application of the hydrometallurgical method, whether using H₂SO₄ or HCl, in leaching under atmospheric pressure conditions with the aim of analyzing the compounds formed and the yield of Ni with parameters of acid concentration, liquid / solid ratio, temperature, and time in this review literature. Ni compounds formed during the leaching process are NiSO₄ and NiCl₂. In the use of HCl solution in the concentration parameter the highest yield was 85% in H₂SO₄ with a concentration of 7 M while in HCl the highest yield was 99% in a concentration of 6.5 M, the liquid / solid ratio in HCl obtained 99% Ni in l / s amounted to 4 compared to H₂SO₄ only got 85% Ni at l / s of 4. At the temperature parameter, the results obtained on leaching using HCl solution with the highest Ni yield of 99% were at a temperature of 90 ℃, and the H₂SO₄ solution obtained the highest Ni yield of 92% at 90 ℃. In the time parameter the best results in the extraction of Ni using HCl solution were 90 minutes of leaching process with 99% Ni extraction, while the leaching using H menggunakanSO₄ solution obtained the best leaching results during leaching time for 8 hours and Ni extraction of 98.2%. Keywords: Concentration, HCl, H₂SO₄, Laterite, Liquid/solid. Time, Temperature, Yield
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Uncontrolled Keywords: | Concentration, HCl, H₂SO₄, Laterite, Liquid/solid. Time, Temperature, Yield. |
| Subjects: | Q Science Q Science > QD Chemistry Q Science > QD Chemistry > QD63 Extraction T Technology > TN Mining engineering. Metallurgy T Technology > TN Mining engineering. Metallurgy > TN688 Hydrometallurgy T Technology > TN Mining engineering. Metallurgy > TN799.N6 Nickel--Metallurgy T Technology > TP Chemical technology T Technology > TP Chemical technology > TP156 Crystallization. Extraction (Chemistry). Fermentation. Distillation. Emulsions. |
| Divisions: | Faculty of Industrial Technology > Material & Metallurgical Engineering > 28201-(S1) Undergraduate Thesis |
| Depositing User: | Vito Valdano |
| Date Deposited: | 11 Aug 2020 04:44 |
| Last Modified: | 11 Aug 2020 04:44 |
| URI: | https://repository.its.ac.id/id/eprint/77512 |
Actions (login required)
 |
View Item |
