René Kieft

Title: René Kieft: Inventor in Metal Purification

Introduction

René Kieft is an inventor associated with Beverwijk, the Netherlands. His patent work focuses on methods for purifying molten metals, particularly aluminium, and separating purified metal from impurities. His portfolio includes 3 patents.

Latest Patents

**Method and Device for Metal Purification and Separation of Purified Metal from Metal Mother Liquid Such as Aluminium.** This invention describes a column-based process for separating metal crystals from a metal mother liquid containing foreign elements. A temperature difference is applied between the column’s warmer upper zone and cooler lower zone. Metal crystals rise to the liquid’s surface, where purified metal can be separated and discharged.

**Crystallisation Method for the Purification of a Molten Metal, in Particular Recycled Aluminium.** This method purifies molten metal by cooling it to a eutectic temperature, forming purified metal crystals alongside crystals containing foreign elements. The molten metal’s density is adjusted and maintained within a range that supports separation of the purified crystals. The process is particularly applicable to aluminium recovered from recycling and scrap.

Career Highlights

Kieft’s listed patent inventions address practical challenges in metal purification and recycling. His work describes approaches for separating valuable purified metal from molten mixtures containing unwanted elements.

Collaborations

Kieft is associated with Aleris Switzerland GmbH and Aleris Switzerland GmbH c/o K+P Treuhandgesellschaft. His listed coworkers include Elisabeth Maria Beunder and Andreas Ten Cate.

Conclusion

René Kieft’s patent work centers on crystallisation and separation techniques that support the purification of metals, especially recycled aluminium.