Disposal of nickel catalyst after hydrogenation of edible oils.

[toval]

What could be the best disposal or use of Nickel after the hydrogenation of edible oils?

 

I want to buy spent raney nickel catalyst

 

[kd40]

Fatty ni catalyst waste can be burn to recover ash that contains nickel.
For this process to be of any economic value the ash should contain minimum 15 to 20% nickel and not more than 50% burn loss
What is the nickel content on as is basis? In other words what is the % loss in weight if material is incinerated and what is the ni content in the ash?

Koshik Patel