History PT Freeport was born in 1936 and, through the Dutch East Indies government expedition discovered mineral deposits called Hertzberg.
Giant vehicles stretched, fro transport the Grasberg mine in the mountains. The world's largest open pit mine operated by PT Freeport Indonesia, involving no less than 3,000 employees for 24 hours straight. They are part of the 12,000 employees of PT Freeport Indonesia. Working in very remote areas, conquer extreme challenges.
Over the past 40 years, more than Rp 140 trillion embedded investment in mining. Build infrastructure such as roads, ports, airports, township, power plant, underground mine to the processing plant.
The first production from the open pit conducted 43 years ago. Exploration of copper and gold reserves reached a peak in 2001 at the Grasberg mine, with a production capacity of up to 238 thousand tons per day.
Modern mine with a single point of control system is able to supervise the mining area of 10,000 hectares, with the area of 202 thousand hectares supporters, including Port Amamapare downstream Timika.
Papua, the world's largest mining history was born here. 79 Years ago, precisely December 5, 1936. Through a long expeditions for nearly two months, the expedition team Dutch East Indies government, Colijn and Jean Jacques Dozy discovered mineral deposits called Hertzberg or Ore Mountains.
A black rock solid with a copper content of towering 180 meters above the ground at an altitude of 3,600 meters above sea level.
The richest copper deposits on earth. This is the starting gate mine in Papua. At that time in 1967 the Indonesian economy is not so strong, Soeharto as power holders make breakthroughs to boost the economy. One of them allowed the entry of foreign investment.
Slamet Bratanata Mining Minister signed the first contract of work for the past 30 years. Through this contract by PT Freeport Indonesia is the exclusive contractor Mine of Hertzberg area of 10 square kilometers. Is Ilyas Hamid, one of the legends of this mining. Maker of the toughest in the world.
Steep road from a height of 2,500 meters to 4,000 meters above sea level. Heat Road which is now the name perpetuate the name of the manufacturer, Ilyas Road became the backbone of operations of PT Freeport.
PT Freeport Indonesia mining complex. stretches from the Port Amamapare up into the high mountains more than 4,200 meters above sea level Grasberg mine. Until now still the Grasberg open pit mine in the world.
Mountains Stone Copper and Gold Mine Freeport.
Many people think in mine PT Freeport Indonesia, which are located in Papua there is gold bullion. Make no mistake, this mining process mineral rock (ore / ore) containing copper, gold, and silver up to 95%. The end result concentrate or mineral sands.
When detikFinance opportunity to visit the Freeport mine in Papua, Sunday (08/16/2015), Freeport describes the processing of rocks into a concentrate or the mineral sands.
So, the stones taken from the Grasberg mine in the mountains and some of the underground mines, destroyed and sent automatically by conveyor, or rubber running.
Every day, Freeport process approximately 220000-240000 tons of ore or ore (rock minerals). These stones are sent to the processing of concentrates.
Through this automated process, these stones were sent to a large machine whose job grind rocks to be a mineral sands containing copper, gold, and silver.
The grinding machine is working 24 hours and is operated automatically by the computer system. This milling process using physical processes.
Then there is the process of creating valuable minerals or concentrates float, by adding chemicals to separate the valuable mineral sands and mineral sands worthless.
Sand containing no mineral is called waste products or tailings, or sand tailings. While the sands that contain this mineral will be sent to the harbor, located about 115 km from the mine, then sent to the buyer.
If you want to 100% is processed into finished goods, such as gold bullion, then concentrate it must be processed using the smelter (purification plant). Freeport currently has a smelter in Gresik, East Java in cooperation with Mitsubishi Corporation Unimetal, nippin Mining and Metals, and Mitsubishi Materials Corporation. The capacity is 1 million tons / year, and will be increased to 3 million tons / year with an investment of US $ 2.3 billion.
Through which the process of ore into a concentrate in the Freeport mine already includes 95% value added. While processing in smelters only add 5%, such as to be a piece of copper or gold bullion.
As is known, every 1 ton of ore (ore) produced from the Freeport mine in Papua, it only contains 7.9 kg of copper and 0.99 grams of gold. So the dosage is quite small.
Freeport is preparing an underground gold mine in the world. Grasberg location below. The underground mine will be the future of Freeport. During this time, the company had spent about US $ 4 billion for underground mines, of the total planned US $ 15 billion.
The mining company's air carrier in the United States (US) contract will expire in 2021. And the government was waiting for certainty, for a contract to be extended until 2041. Because it will issue a big investment for underground mines and smelters. Thank you for reading this article.
Written and posted by Bambang Sunarno. sunarnobambang86@gmail.com
author:
https://plus.google.com/105319704331231770941.
name: Bambang Sunarno.
http://primadonablog.blogspot.com/2015/12/heaven-gold-in-papua.html
Published Date: December 17, 2015 at 18:14
Tag : Heaven Gold in Papua.
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