Ferronickel (FeNi) slag, as the main solid byproduct of FeNi industry, has potential to be utilized other than roadbed material. To broaden applications slag (such CO2-capturing materials), there is a need for treatment that breaks magnesium silicate bonds and transforms into MgO. As an initial study, this research treated by using sodium hydroxide followed water-washing. The present authors evaluated several alkali variables; such temperature (523 K 773 K), time (1–8 h), mass ratio between...

Nickel is an important metal in the industry. To obtain nickel metal, extraction process from ore should be conducted. Recently, resources sulphide becomes rare which makes laterite as future of extraction. Unlike processing, processing requires higher energy through smelting. Therefore, a novel method to using lower needed. The done via direct reduction and magnetic separation. In by reduction, challenges are conduct selective let iron unreduced. addition additive needed achieve this...

The world's nickel demand is increasing, especially with more countries starting to produce battery-based electric vehicles. Currently, the main element used for fabrication of Nickel Manganese Cobalt (NMC) batteries. itself can be extracted from its ore through pyrometallurgical route. Selective reduction using a selective reducing agent needed in order appropriate grade. This study aims possibility gypsum as direct process. In this process, laterite ores content 1.59% were crushed and...

The depletion of sulfide nickel ore and the growing stainless steel demand each year cause use low-grade laterite continues to increase. Due very low content, there is no optimal process extract them. One alternative processes being developed now sintering-blast furnace which produces Nickel Pig Iron (NPI). This research was conducted by sintering limonitic using charcoal as fuel limestone a flux. aims analyze effect mass variation on Ni sinter strength, yield ore. Charcoal calculated energy...

Abstract To address the issue of high energy employment and un‐green processing in limonitic laterites extraction, selective reduction using Na 2 SO 4 additive with introduction different fluxes including quicklime, dolomite, limestone followed by magnetic separation was studied. The objective research to find out influence optimizing ferronickel product reduction. process carried at 1400 °C for 6 hours obtained characterized scanning electron microscopy (SEM), emission dispersive x‐ray...

An acetabular implant is a cup-shaped that wraps around the head of femur at hip joint. Severe damage to results in bone turnover. To meet needs implants, appropriate manufacturing techniques are needed. Investment casting most widely used method because it has best dimensional accuracy. help reduce production costs industry, this research was carried out using ProCast 2018 Software. In study Software with investment CoCrMo material and variations orientation mold pattern, namely 0 o , 45 90...

With the depletion of nickel sulfide ore resources, laterit processing become an attention to fulfill world demans. Reducing laterite by using a low cost carbonaceous reductan has proved produces high grade ferronickel alloy. In this research, reduction was carried out (limonite) with 1.25% nikel content CO gas reductant formed reaction between coal and dolomite. Reduction process preceded forming brickets mixture from limonit ore, coal, Na2SO4, then placed inside crucible bed together...

Indonesia has abundant resources or raw materials, especially the iron sand materials. But, processing in is still low. Even though, steel demand high. So, product as materials steelmaking solution of it. In this research, study was conducted by using variation briquette dimension mixture and ore Direct Reduction process. The aim research to effect on Fe content degree metallization Reduced Iron (DRI). First, were crushed shieved until pass 50 mesh standar size. Then, mixed briquetted based...

As the current drop of nickel sulfide ore on earth, attention to laterite processing was inscreased in order fulfill future demand needs. This research aims optimized process extraction using coal bed method. conducted by reducing low grade (limonitic) with content 1.25 %. The reduction carried out CO gas which formed reaction and dolomite. Briquette ore, coal, Na2SO4 mixtures incorporated crucible bed, then reduced for 6 hours at temperature 1200 °C. 1400 °C, result shown that highest...

Kegiatan ini dilaksanakan dengan latar belakang untuk mendorong perkembangan dan pertumbuhan ekonomi Indonesia terutama pengembangan syariah di tingkat nasional, membantu mempermudah kewirausahaan mandiri atau UMKM menjual produknya meningkatkan ekonominya sesuai masterplan Syariah Indonesia. dimulai dari mengikuti pelatihan sertifikasi halal yang diadakan oleh ITS Tekno Sains. Proses dilakukan bertahap kontak masing-masing bertotalkan 6 yaitu Hanadona Eatery, Hasna Juice, STMJ Pak Tedjo,...

Abstract Austenitic stainless steel types of SS304 and SS304L are most widely used in the industrial manufacturing because it has excellent weldability corrosion resistance. It is undeniable that welding one common steps process repairing damaged equipment. In this study, three different methods including TIG (Tungsten Inert Gas), SMAW (Shielded Metal Arc Welding), MIG (Metal Gas) described to compare mechanical properties morphological analysis. The characterizations were conducted by...

Abstract Recycling organic of house waste remains fairly limited especially in urban area with low-and middle-income. A novel approach is developing method to manage the conversion using larvae Black Soldier Fly (BSF). The advantage this links green technology management which no pollutant effect environment as well increase added value economically. research project successfully presented into high protein animal feeding source. From 5 dol larva BSF’s (approximately 17 gr), it was reduced ±...

Pemanfaatan pasir besi sebagai bahan baku pembuatan dan baja merupakan solusi atas masih kecilnya produksi dalam negeri. Metode reduksi langsung metode yang umumnya diaplikasikan untuk mengolah besi. Reduksi dilakukan dengan memanfaatkan reaksi karbotermik antara karbon batu bara oksida Namun, penggunaan reduktor saat ini menimbulkan kontra, yaitu tentang dampaknya terhadap lingkungan. Sehingga, pemanfaatan arang mengganti baik sebagian ataupun keseluruhan menjadi alternatif solusi....

The increasing demand for stainless steel and the scarcity of sulfide nickel ore affect increase laterite processing. One processes that has been proven can be applied to process is direct reduction. In reduction, reduction atmosphere was adjusted by controlling volume CO 2 from carbon source materials, such as coal, charcoal, green cokes. This research aims analyze effect reducing agents type on limonitic briquettes Ni Fe content recovery Fe. conducted at 1400°C six hours. EDX test...

Nickel is used as a raw material for Manganese Cobalt (NMC) batteries compound of Sulphate Hexahydrate (NiSO 4 .6H 2 O). This study nickel laterite ore. A hydrometallurgical process carries out Ferronickel to extract concentrate. The first step leaching using 2M H SO solution 6 hours with stirring speed 200 rpm at 90°C. leached was then neutralized neutralizing agent MgO 5% w/w until it reached pH 3.5. filtrate filtered separate the and residue. neutralization produces magnesium sulfate salt...

The increasing demand for electric vehicles affects the high nickel-based batteries, including Nickel Manganese Cobalt (NMC) batteries. Generally, NMC is processed from high-quality ore (sulfide ore) to produce nickel (II) sulfate hexahydrate or NiSO 4 .6H 2 O. But sulfide face scarcity due a long history of mining and exploitation. Thus, laterite-type can be an alternative resources. This study aims mixed precipitates ferronickel leaching solution that utilized further Also, this research...

Lateritic ore carbothermalreduction is currently the focus of many researchers. This process uses a relatively lower temperature operation than smelting. Therefore, carbothermal reduction has primary energy demand and CO2 gas emissions. research examines appropriate briquette form to obtain optimum recovery, concentration nickel, selective as well analyzes compounds/phases formed. The in this study was formed into three different geometries, i.e., pillow, spherical, cylindrical forms. First,...

Abstract Indonesia, as one of the biggest contributor to air pollution, has a solution replace petroleum-powered motorized vehicles with battery-powered electric (EVs). Indonesia nickel reserves that can be used cathodes Li-ion battery called NMC. In this research, author uses ferronickel ore from smelting process laterite ore. Then is leached produce sulfate. This research was conducted determine effect variations in leaching time (2 hours, 4 6 8 10 hours) on extraction rate, percentage,...