Ning Duan

Title: Ning Duan’s Patents in Optical Measurement and Copper-Electrolyte Processing.

Introduction

Ning Duan is an inventor based in Shanghai, China, whose patent work addresses real-time measurement and process monitoring. His listed portfolio includes 2 patents, and he is associated with Tongji University.

Latest Patents

Duan’s listed patents focus on optical analysis of concentrated liquids and the control of copper-arsenic separation during electrolyte purification.

- Optical component for directly measuring original valence state, original form and original phase state of high-concentration liquid in real time. This invention describes an optical component with a PLC control module, monochromatic-light purification, light-intensity control, sensitivity adjustment, and multi-species perception modules. The system adjusts the light and its attenuation according to monitoring requirements, then feeds measurement signals back to the PLC for real-time analysis.

- Real-time monitoring system and method for copper-arsenic sulfidation separation in copper electrolyte purification process. This method uses PLC monitoring across three sulfidation stages. It tracks copper and arsenic concentrations and controls gas-inlet and liquid-outlet valves at specified concentration thresholds, supporting staged copper precipitation while managing arsenic levels.

Career Highlights

Duan’s listed inventions apply sensing, automation, and process control to industrial measurement and chemical separation. His work connects real-time optical monitoring with automated decisions based on changing material concentrations.

Collaborations

Duan is associated with Tongji University. His listed coworker, Linhua Jiang, is a woman.

Conclusion

Ning Duan’s patent portfolio highlights practical approaches to real-time optical measurement and automated copper-arsenic separation monitoring.