This inventor holds 5 USPTO granted patents, plus 2 CIPO patents and 2 EPO patents. Top assignees: Outotec Oyj, Outokumpu Oyj. Active years: 2004-2009.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Company Filing History:
Years Active: 2004-2009
Title: Heikki Takala: Innovator in Zinc Recovery and Mercury Removal
Introduction
Heikki Takala is a notable inventor based in Pori, Finland. He has made significant contributions to the field of materials recovery, particularly in the areas of zinc and mercury removal. With a total of 5 patents to his name, Takala's work has had a substantial impact on industrial processes.
Latest Patents
Takala's latest patents include a method for the recovery of zinc by countercurrent leaching. This innovative method involves leaching zinc-containing materials, such as zinc calcine and zinc sulphide, in three stages. The sulphuric acid content increases in accordance with the direction of the solids' movement, allowing for efficient processing. The solids and solutions are routed countercurrently throughout the process, enhancing the recovery of zinc.
Another significant patent is a method for removing mercury from gas. This invention addresses the challenge of extracting mercury from gas containing sulphur dioxide and oxygen, as well as from sulphuric acid vapour. The method utilizes a water solution containing selenium ions, which, in the presence of oxygen, forms metallic selenium. This precipitates the mercury either as a selenide or as a dichloride of mercury and selenium in a chlorine-containing environment. The gas washing occurs at a low temperature, below 50°C, making it an effective and efficient process.
Career Highlights
Throughout his career, Heikki Takala has worked with prominent companies such as Outotec Oyj and Outokumpu Oyj. His experience in these organizations has allowed him to develop and refine his innovative methods for material recovery.
Collaborations
Takala has collaborated with notable colleagues, including Marko Lahtinen and Yrjö Oinonen. These partnerships have contributed to the advancement of his research and the successful implementation of his inventions.
Conclusion
Heikki Takala's contributions to the fields of zinc recovery and mercury removal demonstrate his commitment to innovation and environmental sustainability. His patents reflect a deep understanding of industrial processes and a dedication to improving them.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile