MUMBAI, India, Aug. 17 -- Intellectual Property India has published a patent application (202521086871 A) filed by Pandit Deendayal Energy University on September 12, 2025, for Separation Of Thf + Water Azeotropic Via Extractive Distillation Using Calcium Chloride Salt.
Inventors include Dr. Manan Shah; Prof. Anirbid Sircar; Mr. Krishna Kasat; Mr. Naimil Sheth; and Mr. Krish Desai.
The application for the patent was published on August 14, 2026, under issue no. 33/2026.
Abstract: The titled invention discloses an extractive distillation system for continuously separating an azeotropic mixture of tetrahydrofuran and water. The system utilizes a solid calcium chloride slurry delivered from a first storage tank (1) via a first pump (3) and the mixture delivered from a second storage tank (2) via a second pump (4) into a continuous distillation column (5). A reboiler (6) provides thermal energy, allowing purified tetrahydrofuran vapor to rise and condense in a condenser (7). The condensed liquid is managed by a reflux drum (8) and a ratio controller (15), ultimately depositing anhydrous tetrahydrofuran into a first receiving tank (9). The residual bottom liquid flows into an evaporator (11), which separates the waste liquid into a second receiving tank (10) and recovers the solid salt into a solid recovery tank (12).
Disclaimer: Curated by HT Syndication.
