Salt Bath Regeneration
Problem: Salt aging in the CV process
Anyone using salt molts today knows the problem that it is subject to aging. At the end, when a set quality is not met, the salt must be replaced. The liquid salt is cooled from over 400°C, disposed of at great expense and new salt must be melted again over several days. Material costs and downtimes therefore cause high process costs.
Salt baths age:
- – through the accumulation of exchanged ions as well as impurity ions (sodium, lithium, calcium, …)
- – through decomposition (depending on the process conditions, alkaline components)
- – through contamination (e.g. corrosion of containers and supports)
Solution: Regeneration materials from ReViSalt
Our customers benefit from our innovations by being able to use their salt baths significantly longer. This not only reduces process costs, but also makes the entire process considerably more sustainable. The application is remarkably simple: our regeneration materials are immersed in the salt bath like a tea bag, remain there for 24 hours, and are then completely removed.
With our regeneration materials, our customers can completely eliminate the use of silicic acid and other common, non-removable regeneration materials. Conventional materials with limited effectiveness remain suspended in the salt bath, damage the glass surface, and/or settle as sludge.
Our regeneration materials offers numerous advantages:
- + tailored to the individual customer’s salt bath conditions and quality requirements
- + significantly extend the service life of the salt bath
- + ensure a consistently high strength level with reduced variation
- + guarantee permanently high-quality glass surfaces without signs of corrosion
- + are fully recyclable
- + effectively remove sodium, lithium, calcium, …
- + regulate the basicity (the “pH value”) of the salt bath
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