Analysis of purchase behaviour in ornamental gold industry in India

2020 ◽  
Vol 14 (8) ◽  
Keyword(s):  
Gold Industry

scholarly journals Gold Extraction from Cyanidation Tailing Using Microwave Chlorination Roasting Method

Metals ◽  
2018 ◽  
Vol 8 (12) ◽  
pp. 1025 ◽  
Author(s):  
Fei Zhu ◽  
Libo Zhang ◽  
Haoyu Li ◽  
Shaohua Yin ◽  
Sivasankar Koppala ◽  
...  
Keyword(s):  
Microwave Field ◽  
High Efficiency ◽  
Chloride Concentration ◽  
Treatment Method ◽  
Gold Extraction ◽  
Microwave Roasting ◽  
Gold Mines ◽  
Chlorination Roasting ◽  
New Treatment ◽  
Gold Industry

At present, gold mines are increasingly scarce in the world. The yield of cyanidation tailing (CT) of refractory gold ores with a grade of 10 g/T is huge; however, the effective capitalization of the cyanidation tailing is a significant problem in the gold industry. In this work, a new treatment method, a microwave-roasting process developed. The effect of roasting temperature, calcium chloride concentration, holding time and mineral size on the recovery of Au researched under conventional and microwave conditions. It found that, under the same processing conditions, the Au recovery in the microwave field is much higher than that of conventional conditions. The preliminary reinforcing role of the microwave discussed in the recovery of gold. This might be because of the microwave absorption ability of CaCl2 is much better, heated quickly and the reactions intensified among CaCl2, O2, and H2O. As a result, the extraction of gold in CT drastically increased in the microwave field, and the microwave roasting technology shows the characteristics of environmental protection in terms of low energy consumption and high efficiency.

scholarly journals Features of regional investment project in gold industry

2019 ◽  
pp. 19-21
Author(s):  
Olga Nikolaevna Verkholantseva
Keyword(s):  
Russian Federation ◽  
Far East ◽  
Investment Project ◽  
Eastern Siberia ◽  
Regional Investment ◽  
Gold Industry

The article is devoted to the implementation of regional investment project (RIP) in the territories of Eastern Siberia, Zabaykalsky Krai and Far East. The article analyzes the specific of RIP implementation in gold industry in defined Russian Federation subjects. The possible ways of revealed problems solution are defined.

scholarly journals Thermodymanic Considerations on Gold Dissolution in Different Lixiviants (I)

2019 ◽  
Vol 70 (8) ◽  
pp. 2727-2732
Author(s):  
Catalin Alexandru Barbu ◽  
Ion Constantin ◽  
Mihnea Cosmin Costoiu ◽  
Mihai Buzatu ◽  
Augustin Semenescu
Keyword(s):  
Stability Constants ◽  
Thermodynamic Stability ◽  
Gold Dissolution ◽  
Gold Complexes ◽  
Electrode Potentials ◽  
Electrochemical Mechanism ◽  
The Stability ◽  
Cyanide Solutions ◽  
Gold Industry

The paper presents the main thermodynamic aspects related to gold dissolution in different lixiviants. We analyzedthe thermodynamic stability of the gold complexes with the most representative lixiviants with potential for use in the gold industry. Based on the stability constants we determined the electrode potentials of the gold dissolution reactions in variouslixiviants and we presented the electrochemical mechanism of gold dissolution is alkaline cyanide solutions.

Seasons of Gold

2020 ◽  
pp. 79-102
Author(s):  
Allison Margaret Bigelow
Keyword(s):  
Early Modern ◽  
Visual Analysis ◽  
Spanish Empire ◽  
Oral Traditions ◽  
Gold Processing ◽  
Gold Industry ◽  
The Relationship

This chapter builds from the previous two chapters and concludes the section on Gold. It uses linguistic and visual analysis to show how Taíno and Afro-Taíno understandings of the relationship between plants, metals influenced the legal codes and daily operations of gold processing in La Española. By juxtaposing colonial petitions, imperial ordinances, and Taíno oral traditions, this chapter argues for a new reading of the Afro-Taíno influences in the colonial gold industry – the very sector that epitomized the extractive nature of the early modern Spanish empire.

Our Precious Metal: African Labour in South Africa's Gold Industry, 1970- 1990.

1993 ◽  
Vol 98 (4) ◽  
pp. 1303
Author(s):  
Robert Kubicek ◽  
Wilmot G. James
Keyword(s):  
Precious Metal ◽  
Gold Industry

scholarly journals GOLD MINING IN SALAIR IN THE LATE XIX – EARLY XX CENTURIES

2018 ◽  
pp. 32-38
Author(s):  
A. N. Ermolaev
Keyword(s):  
Gold Mining ◽  
Gold Deposits ◽  
Private Capital ◽  
Private Companies ◽  
Mining Company ◽  
Mining Engineer ◽  
Gold Mines ◽  
Private Entrepreneurs ◽  
Xix Century ◽  
Gold Industry

The research determines the dynamics of gold mining and identifies the specifics of the development of the gold industry in Salair in the late XIX – early XX centuries. The Salair ridge was then under the jurisdiction of the Cabinet of His Imperial Majesty. At the end of the XIX century, the Cabinet spent a lot of money on geological survey of the ridge and invested in the development of the local gold mines. The extraction of gold during this period fluctuated within 6–8 poods (1 pood = 16 kg). At the beginning of the XX century, the Cabinet leased the Salair mines to private entrepreneurs and joint-stock companies. Such agreements were signed by Prince A. von Thurn und Taxis and Dr. Josef Jeanne (Austria), Arthur Stanley and mining engineer Farrukh Bek-Vezirov (Great Britain), State Councilor Berezin (Russia), and The Russian Gold Mining Company. Private companies operated more successfully than the Cabinet. In the XX century the extraction of gold in Salair increased. However, after the companies had developed the ready retrievable gold deposits, they ceased operating. As the calculations have shown, more than 3.6 tons of gold were mined on the Salair Ridge in 1892 – 1915. The main feature of the Salair gold mining was that gold was extracted both by the Cabinet and private companies, which means that state and private capital acted in parallel. 

scholarly journals Video Edukasi Animasi 2 Dimensi Mengenai Bahaya Merkuri terhadap Masyarakat Kabupaten Lombok Tengah sebagai Dampak Penambangan Emas Ilegal

2017 ◽  
Vol 3 (02) ◽  
pp. 176-195
Author(s):  
I Made Marthana Yusa ◽  
Laksminta Rukmi
Keyword(s):  
Environmental Pollution ◽  
Health And Safety ◽  
Health Impact ◽  
Educational Video ◽  
Monitoring And Control ◽  
Industry Waste ◽  
Gold Miners ◽  
Gold Industry ◽  
And Control

AbstrakMerkuri adalah salah satu jenis logam berat yang banyak ditemukan di alam dan tersebar dalam batuan, tanah, air dan udara sebagai senyawa anorganik dan organik. Merkuri dapat dimanfaatkan dalam berbagai bidang industri, salah satunya industri emas. Pengelolaan limbah hasil industri pengolahan emas yang tidak sesuai dengan prosedur yang baik dan benar akan menyebabkan pencemaran lingkungan. Merkuri yang telah mengontaminasi lingkungan dalam jangka waktu panjang akan membawa dampak buruk bagi kesehatan manusia yang sering berinteraksi dengan bahan merkuri ini. Dalam penelitian ini, dilakukan perancangan video berbasis animasi 2 dimensi, sebagai salah satu rekomendasi solusi edukasi, untuk pencegahan dampak kesehatan, akibat pencemaran lingkungan oleh merkuri di Lombok Tengah. Dari hasil penelitian didapatkan fakta bahwa responden yang terdiri dari staf Konservasi dan Sumber Daya Alam serta staf Pengawasan dan Pengendalian Lingkungan Kantor Lingkungan Hidup Kabupaten Lombok Tengah menilai video edukasi berbasis animasi 2 dimensi yang dihasilkan sangat baik dari segi desain maupun penyampaian informasinya. Video ini juga bermanfaat untuk mengedukasi masyarakat penambang emas di Lombok Tengah agar lebih mewaspadai merkuri dan bahayanya, juga menghargai kesehatan diri dan keselamatan kerja. Kata Kunci: Animasi 2 Dimensi, Bahaya Merkuri, Merkuri, Metil Merkuri, Video Edukasi AbstractMercury is one of the heavy metals found in nature and spread in rocks, soil, water and air as inorganic and organic compounds. Mercury can be utilized in various industrial fields, one of which is the gold industry. Waste management of gold processing industry that is not in accordance with good and correct procedures will cause environmental pollution. Mercury that has been contaminating the environment over the long term will have adverse effects on human health that often interact with these mercury ingredients. A 2-dimensional animation based video has been designed in this research, as one recommendation of educational solution, for the prevention of health impact, due to environmental pollution by mercury in Central Lombok. From the research results obtained the fact that respondents consisting of staff Conservation and Natural Resources and staff of Environmental Monitoring and Control Environment Office of Lombok Tengah District assessed 2-dimensional animation based animation videos produced very well in terms of design and delivery of information. This video is also useful to educate the gold miners community in Central Lombok to be more aware of mercury and its dangers, also appreciate the Occupational Health and Safety. Keywords: 2 Dimensional Animation, Mercury, Methyl Mercury, Educational Video

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