Africa is divided into over 54 Countries, with different currencies. This makes it hard for trade between African countries.

If I wanna buy Cocoa from Ivory coast, I'll have to change my money into US dollars, giving US 5 - 10% of my money, then I will probably have to turn the dollars into Euro, losing another 5 - 10% of my capital to Europe, then change my Euro into ivorian franc, again losing another 5 - 10% of my money to the French treasury.

If I started with about South African rand of 1000, by the time I am purchasing cocoa in the Ivory Coast, my money will be worth only 650 to 700 rands, the other rand 300 will be in the hands of US and Europe.

Gaddafi wanted to get rid of this and replace it with the Gold Dinar for doing business in Africa without changing the value, then the West destabilized his country, and he was killed, along with his dream of uniting Africa.