Location History:
- Gretna, LA (US) (1976 - 1987)
- New Orleans, LA (US) (1990 - 1992)
Company Filing History:
Years Active: 1976-1992
Title: Innovator in Chromium Recovery: Ranko P. Crnojevich
Introduction
Ranko P. Crnojevich, an accomplished inventor based in Gretna, Louisiana, has made significant contributions to environmental technology through his innovative methods for recovering chromium and aluminum from waste materials. With a total of ten patents to his name, he has established himself as a key player in the field of resource recovery.
Latest Patents
Crnojevich's most recent patents focus on methods for improving the recovery of chromium in high purity from waste byproducts. One of his notable inventions involves a process for treating sludge that contains substantial amounts of chromium, aluminum, calcium, iron, and phosphorus. This method optimizes the recovery of chromium by forming a slurry, reacting it with acid, and subsequently separating and precipitating the chromium as hydroxide, ultimately yielding a high purity chromate solution.
In another significant patent, he tackles the reclaiming of aluminum-chromium waste materials, particularly from etching operations. This innovative approach involves forming a slurry that selectively dissolves aluminum and chromium while leaving behind undesirable elements. The process allows for the separation of a purified chromium-aluminum solution, which can be further treated to recover valuable alumina.
Career Highlights
Ranko P. Crnojevich is associated with Amax Incorporated, where he has played a pivotal role in advancing methods for waste material treatment and resource recovery. His extensive background and innovative spirit have led to the development of patented processes that contribute to environmental sustainability.
Collaborations
Throughout his career, Crnojevich has collaborated with notable engineers and inventors, including Edward I. Wiewiorowski and Peter H. Yu. These collaborations have enabled him to enhance his innovations and expand the impact of his work in the field of waste recovery and materials engineering.
Conclusion
Ranko P. Crnojevich stands out as a prominent inventor whose work in chromium recovery and waste management not only addresses environmental concerns but also paves the way for sustainable industrial practices. His patented technologies are vital in promoting the recycling of valuable metals, making significant strides toward a greener future.