Micro particle gold extraction from soil

Job ID: 31719240

Budget: $3,000 – $5,000 USD

We are looking to develop a practical high volume process for extracting micro particle gold from old iron rich smelter slag soil
This may require mechanical and or chemical devices to reclaim 5-15% micro gold content.
We will furnish samples of soil for experimentation. We seek to verify and implement a Realtime on going process including specification of all equipment. We are requiring contractors that have proven experience in this type of micro particle extraction.

Looking for a non hazards process avoiding use of acids. A possible bio-extraction such as with hemp plants would be of interest if it could be proven ongoing and cost effective.

We will supply the soil samples and then duplicate the successful process as a final milestone payment.

This is an all or nothing project with a nice bonus for success$$$