Process for providing noble metal-containing mixtures for recovering noble metals

摘要

The invention relates to the provision of noble metal-containing mixtures for a process for processing them by heating the mixture, preferably for processing them by means of an ashing process. This provision is characterized by the following measures: (a) moistening of the noble metal-containing mixture to be processed, (b) introduction of the moistened noble metal-containing mixture into at least one container which serves as diffusion barrier for water, and (c) introduction of the loaded container into a heat-resistant chamber together with at least one upper refractory mat. The noble metal-containing mixture is preferably moistened in the presence of a porous material and the chamber is closed by means of a heat-resistant covering. The invention further provides a processing process comprising the provision of noble metal-containing mixtures and also the heat-resistant chamber loaded with noble metal-containing mixtures itself. The process of the invention enables simple, clean recovery of noble metals in high yield from noble metal-containing mixtures.

主权项

1. Provision of noble metal-containing mixtures for a process for processing noble metal-containing mixtures by heating the mixture, wherein the provision comprises:
moistening of the noble metal-containing mixture to be processed, wherein the noble metal-containing mixture has a total water content in the range from 5 to 80% by weight, introduction of the moistened noble metal-containing mixture into at least one container to form a loaded container, wherein the at least one container serves as a diffusion barrier for water, introduction of the loaded container into a heat-resistant chamber together with at least one upper refractory mat, wherein the at least one upper refractory mat covers the loaded container.