Sealing Composition
A sealing composition with fatty acid and alkali-resistant support forms a chemical barrier to protect centrifugal pump seals in alkaline environments, addressing wear and corrosion issues by reacting with alkaline solutions to form a protective soap layer.
Patent Information
- Authority / Receiving Office
- AU · AU
- Patent Type
- Applications
- Current Assignee / Owner
- ALCOA OF AUSTRALIA LTD
- Filing Date
- 2025-12-19
- Publication Date
- 2026-07-09
AI Technical Summary
Centrifugal pump seals face challenges in alkaline environments, including wear, corrosion, and leakage, particularly in processes like the Bayer Process and Kraft Process, where existing seals fail to provide a reliable barrier against highly alkaline and corrosive solutions.
A sealing composition comprising a fatty acid and an alkali-resistant support is applied to the pump shaft, forming a reaction product that inhibits alkaline solution contact by reacting with the fatty acid, creating a chemical barrier that prevents seal exposure to alkaline media.
The sealing composition effectively protects pump seals from alkaline solutions by forming a soap-like reaction product, reducing wear and corrosion, and maintaining a secure seal in harsh chemical environments.
Smart Images
Figure 00000017_0000