Article | REF: M2394 V1

Precious metals recycling

Authors: Pierre BLAZY, Yves JEHANNE

Publication date: December 10, 2002

You do not have access to this resource.
Click here to request your free trial access!

Already subscribed? Log in!


Français

1. Craft waste

Depending on their nature, a distinction is made between :

  • Precious metals, the higher grades of which are represented by shavings, cutting offcuts, old jewelry, goldsmiths' and silversmiths' pieces, etc., and the lower grades by plating scrap on supports, old silver- or gold-plated metal objects, etc. ;

  • combustible materials, such as workshop wiping rags, oils, polishing pastes and dusts. The substrate can therefore be disposed of by incineration, while the precious metals are concentrated in the ash;

  • goldsmiths' dross or ash, whose main mass is made up of refractory materials. These include worn-out or broken crucibles, furnace bricks, fluxes and melting drosses, workshop sweepings, soot, etc.

You do not have access to this resource.

Exclusive to subscribers. 97% yet to be discovered!

You do not have access to this resource.
Click here to request your free trial access!

Already subscribed? Log in!


The Ultimate Scientific and Technical Reference

A Comprehensive Knowledge Base, with over 1,200 authors and 100 scientific advisors
+ More than 10,000 articles and 1,000 how-to sheets, over 800 new or updated articles every year
From design to prototyping, right through to industrialization, the reference for securing the development of your industrial projects

This article is included in

Eco-design and sustainable innovation

This offer includes:

Knowledge Base

Updated and enriched with articles validated by our scientific committees

Services

A set of exclusive tools to complement the resources

Practical Path

Operational and didactic, to guarantee the acquisition of transversal skills

Doc & Quiz

Interactive articles with quizzes, for constructive reading

Subscribe now!

Ongoing reading
Craft waste