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Nepheline Syenite

Nepheline for Industrial Applications
  • CAS Number: 37244-96-5
  • ((Na,K)AlSiO₄)

Nepheline syenite (Na,K)AlSiO₄ for industrial applications, with reliable supply in big bags.

(Na,K)AlSiO₄
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Description
At PILATO, we market nepheline syenite (Na,K)AlSiO₄ for the industrial market in Spain. Through a company-wide, integrated quality management system, we ensure immediate product availability and an operational approach focused on meeting our customers’ delivery schedules and technical requirements, while integrating seamlessly into their supply chains.

Nepheline syenite is used in the ceramic industry for the manufacture of frits and glazes, as a complement to or substitute for feldspars, since it supplies more alkalis and less free silica and allows the firing temperature to be lowered. Its properties also make it suitable for the glass industry, in applications such as fibreglass, flat glass, glass tableware and container glass, where its alumina contribution improves the chemical durability of the product. It is likewise used as a functional filler in paints and coatings.

We supply nepheline syenite in big bags, supported by agile logistics to facilitate its integration into processes already validated by our customers.

  • Benefits

Why choose PILATO as a supplier?

Partnering with PILATO means working with a supplier that has knowledge of the industrial environment and strong logistics capabilities. Our business focuses on offering:

Immediate availability

Immediate availability from our logistics facilities in Spain.

Compliance with Technical Requirements

Compliance with the technical requirements typically requested by our clients

Personalized service

Local presence and personalized service to coordinate deliveries and address sales-related questions.

Commitment

Commitment to traceability, consistency across batches, and a stable supply.

  • Frequently Asked Questions

Frequently Asked Questions About the Nepheline Syenite

What advantage does nepheline syenite have over a feldspar?

Its higher alkali content and lower proportion of free silica. That makes it a more active flux: it allows the same glassy phase to be reached at a lower temperature, or the firing cycle to be shortened, which translates into energy savings in the kiln.

Not exactly. Nepheline is the mineral, a sodium and potassium aluminosilicate. Nepheline syenite is the rock that contains it together with feldspars. The industrial product comes from that rock, which is why both terms are used interchangeably in the raw materials trade.

Not unit for unit. Because it supplies more alkalis and more alumina, the substitution requires recalculating the composition and checking the result against the actual firing curve, particularly because of its effect on the coefficient of thermal expansion and on the fit between glaze and body.

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