Company Filing History:
Years Active: 1994-1997
Title: Denys F LeClerc: Innovator in Pulp and Paper Technology
Introduction
Denys F LeClerc is a notable inventor based in Surrey, Canada. He has made significant contributions to the field of pulp and paper technology, holding a total of four patents. His work focuses on improving processes in the production of kraft and sulfite pulp.
Latest Patents
LeClerc's latest patents include innovative methods for the determination of sodium sulfide and sulfidity in green liquors and smelt. This rapid method allows for on-line determination of sodium sulfide concentration and percent sulfidity, eliminating the need for manual sampling and frequent equipment maintenance. The process involves withdrawing samples from the manufacturing process and using near-infrared spectrophotometry to produce absorbance measurements. These measurements are then correlated through multivariate calibration to accurately determine sodium sulfide levels.
Another significant patent involves the control of recausticizing system operation using infrared spectroscopy. This method provides a direct monitoring and control approach for on-line measurement of effective alkali, carbonate, sulfate, and thiosulfate concentrations in process liquors. Similar to his previous patent, this method also eliminates frequent sampling and maintenance, enhancing efficiency in kraft pulp production.
Career Highlights
LeClerc is associated with the Pulp and Paper Research Institute of Canada, where he has been instrumental in advancing research and development in the industry. His innovative approaches have contributed to more efficient and effective production methods.
Collaborations
LeClerc has collaborated with Robert M Hogikyan, working together to enhance the research and development efforts within their field. Their partnership has led to significant advancements in pulp and paper technology.
Conclusion
Denys F LeClerc's contributions to the pulp and paper industry through his patents and collaborative efforts have made a lasting impact. His innovative methods continue to improve production processes, showcasing the importance of research and development in this field.