Method for Regenerating a Salt Melt for a Glass Hardening And/or Glass Solidification Process

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This invention presents a method and system for regenerating a salt melt used in glass hardening or solidification processes. The technique involves bringing at least two different regeneration materials into contact with the salt melt (either at the same time or one after the other). Each regeneration material is designed to remove or add specific ions or chemicals, countering degradation effects and maintaining the efficiency and quality of the salt bath during repeated use.

Use CasesContent extracted from patent full text and abstract with AI.

• Industrial glass tempering plants to harden or solidify glass for increased strength and durability.
• Production lines for manufacturing chemically strengthened glass for smartphones, tablets, and display screens.
• Facilities processing complex or specialized glass materials that require repeated chemical treatment.
• Mass production of architectural, automotive, or specialty glass that must withstand frequent bath regeneration cycles.

BenefitsContent extracted from patent full text and abstract with AI.

• Significantly extends the usable life of the salt melt, reducing the need for frequent replacement and thereby saving materials and costs.
• Enables consistent high-quality glass treatment even after multiple cycles, improving throughput and product reliability.
• Allows treatment of a larger volume and variety of glass products—including complicated glass compositions—without loss in performance.
• Can target and remove multiple undesirable ions or compounds from the salt melt, leading to more precise process control.
• Supports sustainable operation by allowing regeneration materials to be recycled or reused after use.
• Minimizes process downtime, as regeneration can be performed in-situ and during production cycles.

Technical Classifications (CPCs)

Inventors & Applicants

Patent Abstract

The invention relates to a method for regenerating a salt melt for a glass hardening and/or glass solidification process. The method is characterized in that at least a first regeneration material body of a first regeneration material and a second regeneration material body of a second regeneration material, which is different from the first regeneration material, is simultaneously or sequentially brought into contact with the salt melt. The invention also relates to an installation for hardening and/or solidifying glass, comprising a salt bath with a salt melt.