So if China wants to make the Renminbi currency a world reserve currency to displace the dollar, exactly how would it get there? One path I see is for the Chinese to stop buying US Treasuries and start buying gold. They then could have a gold standard based currency if they would allow exchanges of their currency for gold.
This currency would be widely accepted if it were based on gold. There are still some concerns the Chinese government could unilaterally change the gold ratio to renminbi or revoke it's gold backing...they are communist after all and the power rests with a corrupt few. The Chinese government would also have to open their currency to allow foreign ownership. However, a gold backed renminbi could then be used as currency for international purchases and sales. Chinese businesses at some point could in fact require that they only pay invoices in renminbi or accept renminbi as payment. As soon as international oil starts getting priced in renminbi, the US businessman and consumer will be hurting. The dollar, as a fiat currency, would surely not fare well in the currency market against a gold based currency from a growing superpower nation.