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Wednesday, 6 April 2011

UAE among world's top five gold traders
Posted on 1/04/2011 04:50:00 AM No Comments
Label: invest, uae

An analytical study issued by the Ministry of Foreign Trade (MOFT) has confirmed that the UAE is among the world's top five gold traders from 2005-2009, in both imports and exports of the commodity.

The MOFT study revealed that the UAE ranked third in exports and the second in imports in 2009, underscoring the continued success of the foreign trade structure of the UAE, which has become a pivotal trade hub between east and west.

The study also further confirms what was revealed in the International Competitiveness Report regarding the UAE's success in developing its international trade away from a reliance on oil into international commodity trade as a result of its adoption of a systematic strategy for constructing and developing the country's ports and airports and offering various logistics services in accordance with the latest systems and practices.

The study, which was prepared by Abdel-Hamid Radwan, an economic consultant with MOFT's Analysis and Trade Information Department, pointed out to the important role being played by the Dubai Multi Commodities Center through the numerous and diverse services that it offers to the gold trade, such as financing, offering logistical services, insurance, and initiatives for the development of the sector in the UAE.

These initiatives included the establishment of entities that offered many incentives for leading companies trading in precious metals to gather under one roof and thus encourage further exchanges.

The study also revealed that the value of UAE gold imports (including platinum-coated, raw, semi-processed or powdered gold) amounted to $14.5 Billion in 2009, registering a 10 percent increase from 2008. In terms of volume, 547 tons were imported in 2009 in comparison with 524 tons in 2008, registering a four percent increase. This increase in the trade of gold in 2009 affirms the special status of the gold trade in the foreign trade structure of the country.

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"Indonesia is a country with rich natural resources. But despite the religious links between the Arab world and Indonesia, the trade ties between the two sides are not up to expectations."
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Koin emas Salah satu bentuk koin emas Krugerrand Afrika Selatan

CARA MUDAH BER INVESTASI EMAS YANG ANTI SEGALA RESIKO PEREKONOMIAN GLOBAL.

INVESTMENT DIVISION
Ijin BAPPEPTI No.18/BAPPEPTI/PN/3/2010
, Head Office:Jl.Sulawesi No.48 Surabaya 60246
Tlp: (031) 505 5500 Fax: (031) 5038885


Account Executive : Annisa Puji Lestari.A.md
Tlp.(031) 61034973 / (0878) 515 78642

Emas juga diperdagangkan dalam bentuk koin emas, seperti Krugerrand yang diproduksi oleh South African Mint Company dalam berbagai satuan berat. Satuan berat krugerrand yang umum ditemui adalah 1/10 oz (ounce), 1/4 oz, 1/2 oz dan 1 oz. Harga koin krugerrand didasarkan pada pergerakan harga emas di pasar komoditas dunia yang bergerak terus sepanjang masa perdagangan. Koin Krugerrand khusus (atau biasa disebut proof collector edition) juga diproduksi secara terbatas sesuai dengan tema tertentu. Karena diproduksi terbatas, sering kali harga koin krugerrand edisi proof ini melebihi harga kandungan emas koin tersebut tergantung pada kelangkaan dan kondisi koin khusus ini. Edisi yang cukup digemari dan dicari para investor adalah edisi yang memuat gambar Nelson Mandela.

Terdapat beberapa negara yang memproduksi secara massal koin emas untuk ditawarkan sebagai alternatif investasi, antara lain:

1. Australia - kangaroo
2. China - panda
3. Malaysia - kijang emas
4. Canada - maple leaf
5. Inggris - Britannia
6. Amerika Serikat - eagle dan buffalo
7. Afrika Selatan - Krugerrand
8. New Zealand - kiwi
9. Singapore - lion
10. Austria - philharmonic

[sunting] Harga emas

Dalam sejarahnya yang panjang dan berliku, saat ini emas tiba pada suatu masa baru dengan peluang dan bahaya. Harga emas saat ini lebih tinggi dari harga 17 tahun terakhir, melambung hingga $1000 per troy ounce. (1 ounce=31,1035 gr). Tetapi, emas yang tersisa untuk ditambang sangatlah sedikit[rujukan?] dan telah diperas dari bumi dengan biaya pemulihan lingkungan yang sangat tinggi dan tak jarang berada di belahan dunia yang termiskin.

Bahkan, per Maret 2008, harga emas mencapai US$ 1010 per troy ounce (troy ounce = 31,1035 gram) atau setara Rp 298.000 per gram.
[sunting] Perkiraan 2008

Harga emas naik pada tahun 2008 terkait dengan suku bunga Amerika yang berencana kembali memotong tingkat suku bunganya, namun hal ini disinyalir sebagai suatu proyeksi atas besarnya permintaan emas di pasaran untuk perhiasan. Hal serupa juga ditegaskan oleh National Australian Bank (NAB) pada sektor mineral dan energi.
[sunting] Keuntungan dan kemiskinan

Dewasa ini perusahaan-perusahaan emas menyerbu pelosok bumi dituntun oleh pemandu yang kuat: Bank Dunia. Bank Dunia, lembaga utama yang bergiat menuntaskan kemiskinan dunia, beranggapan bahwa perusahaan-perusahaan tambang multinasional akan membawa investasi, mendorong pembangunan jalan, sekolah dan pekerjaan, ke negara-negara yang tidak memiliki banyak modal selain sumber daya alam mereka.

Bank Dunia bekerja di kedua pihak. Atas desakannya, lebih dari 100 pemerintahan negara yang mengalami masalah keuangan setuju memotong pajak dan royalti untuk memikat perusahaan-perusahaan tambang besar, ujar James Otto, profesor tamu di sekolah hukum University of Denver.

Sementara itu, Bank Dunia memberikan uang untuk atau menjamin lebih dari 30 proyek tambang emas, untuk mencari keuntungan.

Meskipun tambang hanyalah bagian kecil dari portofolio Bank Dunia, ketika kecelakaan meningkat kontroversi pun merebak. Dalam salah satu bencana terburuk, pada tahun 1995 sebuah tambang di Guyana yang dijamin oleh Bank Dunia menumpahkan lebih dari 790.000 galon limbah tambang bercampur sianida ke anak Sungai Essequibo, yang merupakan sumber air utama negara tersebut.

Pada tahun 2001, presiden Bank Dunia waktu itu, James D. Wolfenshon, menetapkan moratorium investasi tambang selama dua tahun dan memerintahkan penyusunan sebuah kajian tentang keterlibatan Bank Dunia dalam industri tersebut.
[sunting] Endapan emas di Indonesia

Potensi endapan emas terdapat di hampir setiap daerah di Indonesia, seperti di Pulau Sumatera, Kepulauan Riau, Pulau Kalimantan, Pulau Jawa, Pulau Sulawesi, Nusa Tenggara, Maluku, dan Papua.
[sunting] Ekstraksi Emas
[sunting] Amalgamasi

Amalgamasi adalah proses penyelaputan partikel emas oleh air raksa dan membentuk amalgam (Au – Hg). Amalgam masih merupakan proses ekstraksi emas yang paling sederhana dan murah, akan tetapi proses efektif untuk bijih emas yang berkadar tinggi dan mempunyai ukuran butir kasar (> 74 mikron) dan dalam membentuk emas murni yang bebas (free native gold).
Proses amalgamasi merupakan proses kimia fisika, apabila amalgamnya dipanaskan, maka akan terurai menjadi elemen-elemen yaitu air raksa dan bullion emas. Amalgam dapat terurai dengan pemanasan di dalam sebuah retort, air raksanya akan menguap dan dapat diperoleh kembali dari kondensasi uap air raksa tersebut. Sementara Au-Ag tetap tertinggal di dalam retort sebagai logam.
[sunting] Sianidasi

Proses Sianidasi terdiri dari dua tahap penting, yaitu proses pelarutan dan proses pemisahan emas dari larutannya. Pelarut yang biasa digunakan dalam proses cyanidasi adalah NaCN, KCN, Ca(CN)2, atau campuran ketiganya. Pelarut yang paling sering digunakan adalah NaCN, karena mampu melarutkan emas lebih baik dari pelarut lainnya. Secara umum reaksi pelarutan Au dan Ag adalah sebagai berikut:

4Au + 8CN- + O2 + 2 H2O = 4Au(CN)2- + 4OH-
4Ag + 8CN- + O2 + 2 H2O = 4Ag(CN)2- + 4OH-

Pada tahap kedua yakni pemisahan logam emas dari larutannya dilakukan dengan pengendapan dengan menggunakan serbuk Zn (Zinc precipitation). Reaksi yang terjadi adalah sebagai berikut:

2 Zn + 2 NaAu(CN)2 + 4 NaCN +2 H2O = 2 Au + 2 NaOH + 2 Na2Zn(CN)4 + H2
2 Zn + 2 NaAg(CN)2 + 4 NaCN +2 H2O = 2 Ag + 2 NaOH + 2 Na2Zn(CN)4 + H2

Penggunaan serbuk Zn merupakan salah satu cara yang efektif untuk larutan yang mengandung konsentrasi emas kecil. Serbuk Zn yang ditambahkan kedalam larutan akan mengendapkan logam emas dan perak. Prinsip pengendapan ini mendasarkan deret Clenel, yang disusun berdasarkan perbedaan urutan aktivitas elektro kimia dari logam-logam dalam larutan cyanide, yaitu Mg, Al, Zn, Cu, Au, Ag, Hg, Pb, Fe, Pt. setiap logam yang berada disebelah kiri dari ikatan kompleks sianidanya dapat mengendapkan logam yang digantikannya. Jadi sebenarnya tidak hanya Zn yang dapat mendesak Au dan Ag, tetapi Cu maupun Al dapat juga dipakai, tetapi karena harganya lebih mahal maka lebih baik menggunakan Zn. Proses pengambilan emas-perak dari larutan kaya dengan menggunakan serbuk Zn ini disebut “Proses Merill Crowe”.
Map of Cornwall This image comes from the following book:

FAULL, Jim - "The Cornish in Australia", Australian Ethnic Heritage Series, A E Press, Melbourne, 1983, ISBN 0 86787 200 4, page 3.

Map of Redruth - Camborne Area

This image comes from the following book:

STANIER, Peter - "Cornwall's Mining Heritage", Twelveheads Press, Truro, 1988, ISBN 0 906294 14 2, page 35.

Williams Family Tree This image was created by the owner of this web site.

Dolcoath mine, Camborne, 1831

This image comes from the following book:

BUCKLEY, J A - "Cornish Mining - at Surface", Tor Mark Press, Penryn, 1990, ISBN 0 85025 325 X, page 5. The caption there is as follows:

"Dolcoath was among the greatest of all copper mines in the late eighteenth century. Although declining as a copper mine at the time of this engraving by T Allom (1831) it was to rise again as the greatest tin mine ever seen in Cornwall. In sheer size, depth, output and profits Dolcoath stood head and shoulders above all other Cornish tin producers. Note the bal-maids spalling and cobbing the copper ore, the kibbles or baskets of ore being landed, and the enormous thickness of the rope wound round the capstan in the foreground."

A Cornish mine of 1840

This image comes from the following book:

FAULL, Jim - "The Cornish in Australia", Australian Ethnic Heritage Series, A E Press, Melbourne, 1983, ISBN 0 86787 200 4, page 10. The caption there is as follows:

"This sketch first appeared in 1842, in Cyrus Redding's Illustrated Itinerary of Cornwall. It shows typical features of a Cornish mine in the 1840s. There is an engine house, and a horse whim (left) and a rope whim for hauling ore to the surface. In the foreground are women ('bal maidens') breaking up the ore with hammers."

Faull acknowledged the South Australian Archives for this image.

An advertisement for a lecture on emigration to South Australia

This image comes from the following book:

BARTON, D Bradford - "Essays in Cornish Mining History", Volume 1, D Bradford Barton Limited, Truro, 1968, page 134. The caption there is as follows:

"An emigration handbill of 1839 issued by Isaac Latimer of Truro. As the principal agent in Cornwall for the South Australian commissioners, Latimer was responsible for despatching the majority of the early Cornish emigrants to the new colony of South Australia. [Reproduced from an original displayed at the County Museum, Truro, by permission of the Royal Institution of Cornwall]."

A South Australian mine in the 1840s

This image comes from the following book:

FAULL, Jim - "The Cornish in Australia", Australian Ethnic Heritage Series, A E Press, Melbourne, 1983, ISBN 0 86787 200 4, page 34. The caption there is as follows:

"An 1840s illustration of the Kapunda mine. Notice the horse whim for hauling the ore to the surface, and the line of 'picky boys' sorting the ore."

Faull did not give a source for this image.

Off to the gold rushes

This image comes from the following book:

PEACH, Bill - "Gold", Australian Broadcasting Commission and The Macmillan Company of Australia Pty Ltd, 1983, ISBN 0 333 33921 5 and 0 642 97399 7, page35. The caption there is as follows:

"The New Rush, S T Gill".

For Gill see, http://www.adb.online.anu.edu.au/biogs/A010410b.htm

Map of the Avoca gold field

This image comes from the following book:

FLETT, James - "The History of Gold Discovery in Victoria", The Poppet Head Press, Melbourne, 1979, ISBN 0 9597173 2 3, page 449. The caption there is as follows:

"Gold workings in the Pyrenees."

The original source is not cited.

Early gold diggings

This image comes from the following book:

PEACH, Bill - "Gold", Australian Broadcasting Commission and The Macmillan Company of Australia Pty Ltd, 1983, ISBN 0 333 33921 5 and 0 642 97399 7, page 39. The caption there is as follows:

"Early Goldfields, S T Gill".

For Gill see, http://www.adb.online.anu.edu.au/biogs/A010410b.htm

More early diggings

This image comes from the following book:

PEACH, Bill - "Gold", Australian Broadcasting Commission and The Macmillan Company of Australia Pty Ltd, 1983, ISBN 0 333 33921 5 and 0 642 97399 7, page 51. The caption there is as follows:

"Early diggings".

The original source is not stated by Peach, but general acknowledgement for illustrations is given to the Mitchell Library, The Dixson Library, La Trobe Library, Holtermann Collection, the Melbourne University Gallery, the National Library of Australia and the Gulgong Museum.

Diggers on the Victorian gold fields 1850s This image comes from the following book:

FAULL, Jim - "The Cornish in Australia", Australian Ethnic Heritage Series, A E Press, Melbourne, 1983, ISBN 0 86787 200 4, page 51. The caption there is as follows:

"This well-known illustration of gold digger working along a stream was the work of J Skinner Prout (1806-1876) who was born in Plymouth and knew the Cornish countryside across the River Tamar very well. He came to Australia in the 1840s and made many sketches and paintings while roaming throughout New South Wales, Victoria and Tasmania. He later returned to live in England."

Faull stated in the front matter that he had been unable to trace a copyright holder for three illustrations, including this one on page 51.

For Prout, see http://www.adb.online.anu.edu.au/biogs/A020308b.htm.

Selling miners' rights 1868

This image comes from the following book:

FLETT, James - "The History of Gold Discovery in Victoria", The Poppet Head Press, Melbourne, 1979, ISBN 0 9597173 2 3, page 246. The caption there is as follows:

"Selling Miner's Rights on the rush to Myer's Creek, Bendigo, 1868."

The original source is not cited.
Gold mineralogy:
Natural resources of elemental gold are mainly contained in the mineral gold (plus 85%Au) and in seawater. The oceans contain a major resource of gold in solution but individual estimates are variable, depending upon the location of samples, which appear to range in gold content from as low as 0.1 to as high as 2.0 ppb by weight. However, attempts to recover gold from seawater on a commercial scale have so far failed, mainly because of the large quantities of water involved; ion exchange appears to offer the present best avenue for research. Salt, bromine and magnesia are recovered from seawater on a large scale hence the oceans must be regarded as a potential gold source of major proportions.

gold minerals Gold mineralogy Gold geochemistry Gold grain morphology

gold-minerals

Gold geochemistry:
Two important aspects of the aqueous geochemistry of gold are its chemistry
And the particular properties of the matrix solution (e.g. acidity, pH and
Oxidation potential, EH). Salinity can arise from various processes including rock
Weathering and dissolution of previously deposited halite, evaporation, sea water
And aerosol deposition of seawater. Acidity, which is usually measured as pH
And factors such as pH, Eh, and salinity have major effects on the speciation and
Solubility of gold.


411976215 Goldwing 150x150 Gold mineralogy Gold geochemistry Gold grain morphology

Gold grain morphology 150x150 Gold mineralogy Gold geochemistry Gold grain morphology
Gold grain morphology

gold minerals 150x150 Gold mineralogy Gold geochemistry Gold grain morphology
gold-minerals



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