Refining & Grade Specs

Rubidium Refining Methods and Grade Specifications

The transformation of Rubidium concentrate into refined products suitable for industrial use requires specialized metallurgical and chemical processes. Rubidium is refined into 3 primary commercial forms, each serving specific end-use sectors.

Refining Processes

The primary refining and processing pathways for Rubidium include:

1. Chemical processing of pollucite liquors
2. Ion exchange separation
3. Distillation of rubidium metal

Product Forms and Grade Specifications

Refined Rubidium is available in the following commercial forms, each with specific purity requirements:

Quality Standards and Benchmarks

International standards for Rubidium products are established by organizations such as ASTM International and various national standards bodies. Pricing is referenced against Dealer / lab-grade (99.75% metal) assessments. These standards define minimum purity levels, acceptable impurity limits, and testing methodologies that facilitate international trade.

Refining Capacity and Geography

Global refining capacity for Rubidium is concentrated in a limited number of countries. Canada controls approximately 50% of primary production and plays a significant role in downstream refining. Efforts to diversify refining capacity are a key priority for governments seeking to reduce supply chain dependencies, particularly in the atomic frequency standards sector.