What is the difference between Cu content and min recovery rate?

Hi guys,



I've been reading into the recent news about the Chinese government lifting the restrictions on the importation of high purity scrap metals. If you follow this link it'll take you to one of the articles I've been reading. At the bottom of the article, there's a table which outlines the different categories of copper and brass. Cu content is obviously the amount of copper content in the entire shipment but I can't seem to work out what 'Min. recovery rate (%)' means. Can somebody please clarify for me?

It's the minimum allowable % of net copper from the gross weight. Gross weight is 100whatevers and the minimum allowable recovery is 96% then the mix you provided needs a copper weight of at least 96whatevers. Lower than that and your mix is too impure to qualify for the category.

Originally Posted by JJinLV

It's the minimum allowable % of net copper from the gross weight. Gross weight is 100whatevers and the minimum allowable recovery is 96% then the mix you provided needs a copper weight of at least 96whatevers. Lower than that and your mix is too impure to qualify for the category.

Thanks for getting back to me. Surely that's the same as the Cu content percentage though?

Originally Posted by hitch

Thanks for getting back to me. Surely that's the same as the Cu content percentage though?

One is what they want it to be. The other is the least it can be.