Iridium is obtained commercially as a by-product from nickel and copper mining and processing. During electrorefining of copper and nickel, noble metals such as silver, gold and the platinum group metals as well as selenium and tellurium settle to the bottom of the cell as anode mud, which forms the starting point for their extraction.[46][49] In order to separate the metals, they must first be brought into solution. Several methods are available depending on the separation process and the composition of the mixture; two representative methods are fusion with sodium peroxide followed by dissolution in aqua regia, and dissolution in a mixture of chlorine with hydrochloric acid.[18][40]
After it is dissolved, iridium is separated from the other platinum group metals by precipitating (NH4)2IrCl6 or by extracting IrCl2−
6 with organic amines.[50] The first method is similar to the procedure Tennant and Wollaston used for their separation. The second method can be planned as continuous liquid–liquid extraction and is therefore more suitable for industrial scale production. In either case, the product is reduced using hydrogen, yielding the metal as a powder or sponge that can be treated using powder metallurgy techniques.[51][52]
Annual production of iridium circa 2000 was around 3 tonnes or about 100,000 troy ounces (ozt).[note 3][10] The price of iridium as of 2007 was $440 USD/ozt,[46] but the price fluctuates considerably, as shown in the table. The high volatility of the prices of the platinum group metals has been attributed to supply, demand, speculation, and hoarding, amplified by the small size of the market and instability in the producing countrie

Iridium is obtained commercially as a by-product from nickel and copper mining and processing. During electrorefining of copper and nickel, noble metals such as silver, gold and the platinum group metals as well as selenium and tellurium settle to the bottom of the cell as anode mud, which forms the starting point for their extraction.[46][49] In order to separate the metals, they must first be brought into solution. Several methods are available depending on the separation process and the composition of the mixture; two representative methods are fusion with sodium peroxide followed by dissolution in aqua regia, and dissolution in a mixture of chlorine with hydrochloric acid.[18][40]
After it is dissolved, iridium is separated from the other platinum group metals by precipitating (NH4)2IrCl6 or by extracting IrCl2−
6 with organic amines.[50] The first method is similar to the procedure Tennant and Wollaston used for their separation. The second method can be planned as continuous liquid–liquid extraction and is therefore more suitable for industrial scale production. In either case, the product is reduced using hydrogen, yielding the metal as a powder or sponge that can be treated using powder metallurgy techniques.[51][52]
Annual production of iridium circa 2000 was around 3 tonnes or about 100,000 troy ounces (ozt).[note 3][10] The price of iridium as of 2007 was $440 USD/ozt,[46] but the price fluctuates considerably, as shown in the table. The high volatility of the prices of the platinum group metals has been attributed to supply, demand, speculation, and hoarding, amplified by the small size of the market and instability in the producing countrie

NAME OF THE PERSON SANTOSH GAWDA

IF I SAID ANYTHING WRONG TO U THEN I AM VERY SORRY

THANKS AND REGARDS

MUMBAI DEALMAKER

Regards.

What i beleive is the site RICE-PULLAR to be shut down on very urgent basis. As there is no genuine buyer as well as dealer.

So that new commer who just have joined and will join later will not be cheated by these CONS.

Saley Choor hai.. time paas kar rahe hai.. kabhi kahtey hai y chaiye fir kahtey ye nahi chalega, fir kahtey hai function chaiye, fir kahtey hai function clear nahi hai aur function chaiye..

Kuch toh apna ghar baar tak laga chuke hai iss kaam me aur kahi ke bhi nahi rahe.

Black turmaric thi.. today i just through it to dustbin.

Sab bekar...Currently i have..
I have 1964 B series Bothilangam Loose note or 2 bundle still deal not done.
I have 1957 C series L.K Jha 2 bundle still not done.
I have 1818 and 1839 Victoria coin still deal not done.
I have Rs.10 & 5 note of CD Desmukh (bote is back and Lion is on watermark)
I have 1818 and 1835 Copper coin of Ram,lakshman, sita and hauman still deal not done.

Tell me what to do what not to do..

note:- I'm not gonna hurt anyone's feeling but truth is truth..

mail or call
8130427310
vinod12382@gmail.com

You have opened our eyes as some people in Kolhapur[Maharashtra] are working for these people.Now there base is in Kolhapur and have started their work with some local people there.
Thanks Once again for your nice advise.