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Dolomitas del Norte

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Dolomitas del Norte is a Spanish industrial-minerals production plant within the Calcinor group, specialised in sintered dolomite for refractories and lime-based products.

Last updated September 28, 2026

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Overview

Dolomitas del Norte is a Spanish industrial-minerals operation belonging to the Calcinor group, a family-owned company dedicated to the preparation of industrial minerals used as chemical reagents. Within Calcinor's network of production plants, Dolomitas del Norte appears as a manufacturing site rather than a standalone consumer-facing brand: it is listed among the production plants for Calcinor's STABYCAL® soil-stabilisation range and is the designated production plant for REFRADOL®, the group's sintered dolomite brand. Calcinor describes itself as a leader in its zones of influence, both in calcined products and especially in differentiated products such as dolomite refractories, PCC and talc. The group is active on five continents, exporting its products and operating a network of companies across Europe and Africa. Its industrial minerals serve sectors including the iron and steel industry, metallurgy, the paper industry, glass and ceramics, the chemical industry, paint, adhesives and sealants, rubbers, mining, plastics, soil stabilisation, construction and civil works, water, sludge and gas treatment, agriculture, livestock farming, animal feed, the sugar industry and human food. Dolomitas del Norte's most distinctive contribution to the group is REFRADOL®, a sintered dolomite with high resistance to hydration. Calcinor states that the industrial process applied to this raw material can be considered unique in the world, yielding a product with special characteristics that extend its application potential. REFRADOL® is a raw material for the production of refractories, suitable for uses that bring them into contact with water or aqueous additives. It can be added to refractory mixtures for quick repairs of damaged areas or to generate a protective coating, and its high resistance to hydration makes it usable as dolomite gunning material for ladles and electric arc furnaces. It is available in several grain sizes and formats, serving the iron and steel industry and metallurgy. The site also participates in the production of STABYCAL® products, a range developed by Calcinor through collaborations and R&D to optimise the stabilisation of clay soils with lime. The STABYCAL® family selects and modifies calcium oxides and hydroxides to strengthen performance and reactivity while reducing product loss during application, and is aimed at civil works and soil stabilisation as well as agriculture. As part of Calcinor, Dolomitas del Norte sits inside a private, family-owned industrial group with an industrial culture and a stated commitment to continuity in the industrial minerals sector. The group emphasises sustainable growth, optimising resource use through new technologies and industrial processes. Public information about Dolomitas del Norte as an individual legal entity is limited; it is best understood as a Spanish production plant and sub-brand within the wider Calcinor industrial-minerals organisation.

History

Dolomitas del Norte is a Spanish industrial-minerals operation that forms part of the Calcinor group. Public evidence describes it primarily through its role inside Calcinor's production network rather than through a standalone corporate history. Calcinor presents itself as a family company with an industrial culture and a commitment to continuity in the industrial minerals sector, dedicated to the preparation of industrial minerals used as chemical reagents. Within that group, Dolomitas del Norte is identified as a production plant for two distinct product families. The first is REFRADOL®, Calcinor's sintered dolomite brand. Calcinor states that the industrial process it applies to this raw material can be considered unique in the world, producing a product with special characteristics that extend its application potential. REFRADOL® is a raw material for the production of refractories, suitable for uses that put them in contact with water or aqueous additives. It is a versatile product that is easy to use and can be added to refractory mixtures for quick repairs of damaged areas or to generate a protective coating. Its high resistance to hydration, acquired after treatment, makes it usable as dolomite gunning material for ladles and electric arc furnaces, and it is available in several grain sizes and formats. Its application sectors are the iron and steel industry and metallurgy. The second product family associated with the site is STABYCAL®, a range developed by Calcinor through collaborations and R&D activities to optimise the stabilisation process of clay soils with lime. The STABYCAL® range selects and modifies calcium oxides and hydroxides, strengthening performance and reactivity while reducing product loss during application. Dolomitas del Norte is listed among the production plants for this range, alongside Calmit Llierca, Calera de Alzo, Andaluza de Cales, Cal de Castilla, Cales de La Plana, Lafarge Calcinor Maroc and Eurocho. The STABYCAL® family includes STABYCAL and STABYCAL SP, the latter offering a significant reduction in dust generated during dosing and application and recommended for agriculture and civil works close to inhabited places or sensitive sites such as airports, tunnels and railways. The target sectors for the range are construction and agriculture, with application in civil works and soil stabilisation. Calcinor's broader context helps situate Dolomitas del Norte. The group describes itself as a leader in its zones of influence, both in calcined products and especially in differentiated products such as dolomite refractories, PCC and talc. It is active on five continents, exporting its products and maintaining a network of companies set up around Europe and Africa. Its industrial minerals serve a wide array of application sectors: the iron and steel industry, metallurgy, the paper industry, glass and ceramics, the chemical industry, paint, adhesives and sealants, rubbers, the mining industry, plastics, soil stabilisation, construction, civil works, water treatment, sludge treatment, gas treatment, agriculture, livestock farming, animal feed, the sugar industry and human food. The group also emphasises sustainable growth, stating that it helps protect the environment by optimising and using only those resources that are strictly necessary, through the development of new technologies and industrial processes. No founding date, founder, headquarters address or independent corporate milestones for Dolomitas del Norte are provided in the available evidence, and none should be assumed. The entity is best documented as an active Spanish production plant and sub-brand within Calcinor's industrial-minerals operations.

Products and positioning

Industrial-minerals production plant within the Calcinor group, specialised in sintered dolomite refractories raw materials and lime-based soil stabilisation products.

  • REFRADOL®

    Sintered dolomite with high resistance to hydration, produced at Dolomitas del Norte. A raw material for refractories suitable for contact with water or aqueous additives; usable in refractory mixtures for quick repairs or protective coatings, and as dolomite gunning material for ladles and electric arc furnaces. Available in several grain sizes and formats. Application sectors: iron and steel industry, metallurgy.

  • STABYCAL®

    Lime-based soil stabilisation range developed by Calcinor through collaborations and R&D to optimise stabilisation of clay soils with lime. Selects and modifies calcium oxides and hydroxides to strengthen performance and reactivity and reduce product loss during application. Dolomitas del Norte is one of its production plants. Application sectors: civil works, soil stabilisation, agriculture.

  • STABYCAL® SP

    Variant of the STABYCAL® range offering a significant reduction in dust generated during dosing and application; recommended for agriculture and civil works close to inhabited places or sensitive sites such as airports, tunnels and railways.

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