Murray J McLeod

Title: Murray J McLeod: Innovator in Pulp Bleaching Technology

Introduction

Murray J McLeod is a notable inventor based in Hawkesbury, Canada. He has made significant contributions to the field of pulp bleaching technology. His innovative approach has led to advancements in the efficiency and effectiveness of the bleaching process.

Latest Patents

Murray J McLeod holds a patent for a "Method and apparatus for automatically and simultaneously controlling" the solution viscosity and degree of brightness of pulp during a bleaching process. This invention employs a sequence of chlorination, hypochlorite, and chlorine dioxide bleaching reagents. The process involves monitoring the pulp using an optical device that utilizes reflected light of one or two wavebands. The optical monitoring device electronically feeds a control signal to a regulator or computer, which regulates the input of the bleaching reagents. The amounts of reagents added are based on relationships determined between the light reflectance values of the pulp at various stages and the desired viscosity and brightness values. The viscosity is controlled by managing the hypochlorite addition, while the brightness of the fully bleached pulp is controlled by chlorine dioxide addition. This innovative method enhances the overall quality of the bleaching process.

Career Highlights

Murray J McLeod has had a distinguished career, working with Canadian International Paper Company. His expertise in pulp bleaching technology has positioned him as a key figure in the industry. His contributions have not only improved operational efficiencies but have also set new standards in pulp processing.

Collaborations

Throughout his career, Murray has collaborated with notable colleagues, including John A Histed and William H Lawford. These partnerships have fostered innovation and have been instrumental in the development of advanced bleaching technologies.

Conclusion

Murray J McLeod's contributions to pulp bleaching technology exemplify the impact of innovation in industrial processes. His patented methods have significantly improved the efficiency and quality of pulp bleaching, showcasing the importance of continuous advancement in this field.