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xNi/10NiO-NiFe2O4 cermet and 1BaO-xNi/ (10NiO-NiFe2O4) cermet (x=5,10,17) inert anodes were prepared and their corrosion resistance to Na3AlF6-Al2O3 melts was studied in laboratory electrolysis. The results show that many pores are produced and electrolytes are infiltrated inside inert anodes during...

The phase and composition of Liupanshui coal gangue were determined by XRD and XRF analysis. The coal gangue is calcined at 600°C for 2h, grind 200 mesh, and the optimum amount of coal gangue is determined by testing cement mortar with different proportions and testing its compressive and flexural mechanical...

This study investigated the potential of FANR, Aceh, Indonesia, as an alternative precursor material for geopolymer mortar. FANR was analyzed through X-Ray Fluorescence (XRF), X-Ray Diffraction (XRD), and Scanning Electron Microscopy (SEM) to determine its chemical composition, crystalline structure,...

The phase and composition of Liupanshui gangue are tested by XRD and XRF respectively. The activation properties of coal gangue as cement admixture at different calcination temperatures are investigated. The results show that: Liupanshui coal gangue as a binder to join the cement cementing material,...

Traditional medicine has historically employed the West Sumatran herb Garcinia cowa Roxb, often known as asam kandis. Flavonoids are one of many phytochemicals found in the rind of asam kandis. Since the rind of G. cowa has been shown to have antioxidant action, it is frequently utilized as a medicinal...

Hexagonally ordered mesoporous silica SBA-15 was successfully synthesized for the first time using natural clay from low-grade potash ores of a salt lake in Qinghai, China, without addition of silica reagents. The influence of changes in processing parameters, such as activation method, hydrothermal...

The over-reliance and environmental damage caused by the use of fossil fuels have created the need to explore an alternative source of renewable and clean energy. Free Fatty Acid (FFA) from Hevea brasiliensis oil or commonly known as rubber seed oil (RSO) was utilized as feedstock with the aid of waste...

Fly ash sample collected from a facility which treat urban waste with combustion, the major physio-chemical features of which were studied including chemical composition; the heavy-metal content, speciation as well as leaching toxicity; surface morphology analysis and composition within the mineralogical...

Pampang Kiri River in Pampang Culture Village, North Samarinda, Samarinda City, East Borneo is one of the catchment rivers of Benanga Dam, Lempake. This study aims to determine the distribution of sediment texture and Fe concentration in samples and the influence of Fe concentration from upstream to...

Gadolinium is a rare earth metal that has similar properties as other rare earth metals, making it difficult to separate Gadolinium from the others. Gadolinium has been extracted from Erath’s crust in the form of their minerals, such as monazite and gadolinite. Gadolinium is widely used for applications...

In this article, the copper and lead adsorption process using Indonesian Natural Zeolite (INZ) is studied as an adsorbent. INZ samples were obtained from Sumbermanjing Wetan, Malang district, East Java. The influence of activating acid concentration and different types of acid on the removal of copper...

Petroleum is one of the fuels still widely used in Indonesia for vehicles. Petroleum exploitation activities produce residue or waste material in the form of unused petroleum drilling mud, which, if not utilized, can become waste. This research used the mud from petroleum drilling into valuable products...

Palm kernel shell ash (PKSA) is a waste from the use of palm kernel shell as fuel which is very abundant, especially in Riau, Indonesia. The objective of this study utilized the PKSA to improve the quality of used palm cooking oil. The characteristics of PKSA were analyzed using FTIR to determine the...

Lynde Type-A (LTA) zeolite is one type of zeolite that has various uses including as an adsorbent, catalyst, ion exchanger, and molecular sieve. Generally, LTA zeolites are produced from commercial chemicals and natural materials such as natural zeolites using the hydrothermal method which takes up to...

Indonesia is one of the largest coal producers in the world. In 2019, based on Indonesia’s coal production, it reached 565.81 million tons with domestic consumption of 128.38 million tons. South Sumatra Province is one of the provinces that produces the largest coal production in Indonesia through one...

The objective of this study is to measure the purification and characterization of the quality of quartz sand from Pasir Putih village, South Pamona district. The purification was done to increase the pureness of the silica by soaking the sample with HCl 2M then was titrated using aqueous to reach the...

Cerium-rich rare earth oxides nanoparticles were extracted from bastnaesite concentrate by first leaching, alkali fusion with NaOH, and second leaching process. The effects of the hydrochloric acid concentration, mass ratio of solid to liquid, leaching temperature of the leaching process and the NaOH...

To enhance the physicochemical properties of the EFB in the form of biochar, torrefaction and hydrothermal treatment were used. The proximate and ultimate compositions, heating values, and mineral composition of the biochar were all determined. The results showed that after treatment, fixed carbon increased...

Telagajaya Village is known as one of the rural areas that is located in the Batujaya Temple Complex, Karawang, West Java. Preliminary investigation in Telagajaya discovered that there were 16 sites which are believed to have been the construction sites of ancient temples, while an excavation revealed...

Fe/SiO₂ soft magnetic composites have gained considerable attention in the field of materials science due to their unique magnetic properties, high electrical resistivity, and thermal stability. These materials are particularly useful in various applications, including transformers, inductors, and electromagnetic...

This study set out to explore and understand the mud properties, particularly from Puger Port in Jember Regency. The focus is on both its chemical makeup and physical characteristics, especially the rock powder present in the samples. Through the analysis, researchers aim to uncover variations in mineral...

Research has been conducted on the analysis of nickel ferrite (NiFe2O4) nanoparticles based on iron sand. The purpose of this study was to produce nickel ferrite nanoparticles and to determine the physical and optical properties of nickel ferrite nanoparticles. In this study, the synthesis of nickel...

Non-Destructive Testing (NDT) was used to assess the link between P-wave velocity and engineering parameters in weathered limestone near Batu Caves, Selangor. This study specifically investigated the relationship between ultrasonic pulse velocity (UPV) and rock uniaxial compressive strength, utilizing...

This study investigates the characterization and processing of lithium (Li) and rubidium (Rb) ores from a new deposit using multiple analytical techniques. For mineral characterization, Mineral Liberation Analysis-Scanning Electron Microscopy (MLA-SEM), X-ray Powder Diffraction (XRPD), and X-ray Fluorescence...

Mongolia possesses over 3.6 billion metric tons of phosphate resources, predominantly located in Khuvsgul and Zavkhan Provinces. Despite this abundance, the country lacks industrial-scale phosphate beneficiation and fertilizer production, resulting in over 90% import dependency. Current national fertilizer...

Seawater is a renewable natural resource that is easy to get for use in various purposes. Seawater has many mineral deposits, one of which is MgCl2. This research aims to synthesize Mg/Al-NO3 hydrotalcite-like with Mg raw material from seawater, characterization and test the adsorption capacity to Cu2+...

The waste of husks and corn cobs that relatively abundant in Indonesia is mainly used as animal feed. Its utilization is still not maximized and pollutes the environment a lot. Corn husks and cobs contain silica, which can be used as a raw material in the manufacture of SiO2 silica gel. This study aims...

Tin mining will leave industrial waste in the form of tin tailings. Physically, the main content of tin tailing is sand that can hardly be utilized for agricultural purposes. Tailings contain only a small amount of nutrients and may contain toxic compounds. In this article we developed a method of purifying...