Coke
Coke is a porous mass of carbon that is industrially obtained by means of high-temperature dry coking coal distillation in the absence of oxygen.
The manufacture of coke is another activity of Industrial Quimica del Nalón, S.A., and is currently carried out at the Sama de Langreo production site.
The annual production capacity is 130,000 Tm., which makes Industrial Química del Nalón, S.A. the leading producer of foundry coke in Spain and one of the main European producers, exporting to numerous countries in Europe and throughout the world.
The most important applications are in iron foundries, non-ferrous smelting, insulation sector, the chemical and sugar industries, ferrous alloys, etc.
1. Nalon Coke
NALÓN Coke manufacture is carried out at specifically designed facilities, under a computing controlled process to produce a high performance coke that satisfies the requirements demanded in the foundry and insulation sectors.
The characteristics of the special NALÓN foundry coke are:
- High apparent density.
- Low ash content.
- High carbon content.
- High calorific value.
- Low carboxyreactivity.
- High mechanical strength.
- Uniform granulometry accommodated to customer needs.
Applications:
NALÓN Coke is employed mainly in the sectors of:
- Iron foundry: For the manufacture of components for the automotive industry, machine tools, elements for public works, household equipment (radiators, baths, fittings...) and others.
- The insulation sector: For the production of stone wool, acoustic and thermal insulating products.
- Non-ferrous smelting: For the production of primary and secondary smelting lead, zinc and copper.
2. Other Cokes
These are cokes with a granulometry of less than 90 mm, resulting from foundry coke manufacturing processes and they are marketed for several other sectors.
Their characteristics are similar to those of Nalon foundry coke:
- High carbon content.
- High calorific value.
- Low ash content.
- High apparent density.
- Low carboxyreactivity.
Applications:
These vary according to their granulometry; mainly in the chemical, sugar-manufacturing and ferrous-alloy sectors. Their low ash content make them adequate in the preparation of intermediate products employed in diverse industrial processes to obtain fine chemical products and sugars.
Pitch
Pitch is the main product obtained from coal tar distillation. It is composed of high molecular weight polycyclic aromatic hydrocarbons.
Industrial Química del Nalón, S.A., manufactures the most ecological pitch of the market. Its low volatile content, low ash content and an optimised rheology guarantees a better wettability. This behaviour results in:
- A reduction in consumption (up to 6% in weight), with positive environmental and economic effects.
- Improved electrical and mechanical properties.
- Lower emissions.
Applications:
The basic applications of pitch are in:
- The aluminium industry: The manufacture of anodes for pre-baked and Söderberg electrolytic cells.
- The graphite industry: As a binding and impregnation pitch for the manufacture of electrodes used in the steel sector, as well as pitches for nipples and special artefacts.
- Special pitches: Pitch for refractory materials, pitch for cathodes, pitch for waterproofing materials, pitch for clay pigeons, etc.
Naphthalene
Naphthalene is a chemical compound with formula C10 H8. The two kinds of naphthalene concentrates that may be obtained from coal tar are known as crude and refined naphthalene.
Industrial Química del Nalón, S.A. has developed processes and invested in facilities and equipment that enable us to offer the entire range of naphthalene purities to the market. These range from 96.5% (technical naphthalene) to above 99,9% (pure naphthalene), with low sulphur (< 2 ppm) and nitrogen (< 5 ppm) contents. It is suitable for organic syntheses and has a stable, snow-white colour, being, most probably, the purest available in the market.
Applications:
Naphthalene has multi-sectorial uses, with a variety of applications. It is mainly used in the manufacture of:
- Phthalic anhydride.
- Concrete superplasticizers.
- Tanning agents and dyestuffs.
- B-naftol.
- Tetralin and Decalin.
- Mothballs and other compacted products for household use.
It is also a raw material to obtain a large number of intermediate organic compounds used in fine chemical and pharmaceutical processes.
Oils
These are fractions obtained during coal tar distillation. They are marketed directly or in blended formulations.
- Carbolic Oil: Distilled between 140 and 210ºC.
- Heavy Oil (Wash Oil): Distilled between 230 and 290ºC.
- Anthracene Oil: Distilled between 300 and 395ºC.
Applications:
The sectors using these technical oils are mainly:
- The carbon black industry (Anthracene Oil).
- The Coke industry (washing of battery gas).
- Chemical industry.
Specifications:
Specifications for any of these oils will be provided upon request.
Presentation and Supply:
The following products are marketed under the denomination of technical oils:
- Anthracene Oil: Raw material for carbon black manufacture. This product is supplied in bulk liquid form or in thermally insulated tank trucks or vessels. (Own fleet. Up to 6,000 mt lots).
- Heavy Oil (Wash Oil): This oil is used to absorb the impurities of battery gas before it can be used as a fuel. The product is supplied in bulk liquid form in tank trucks.
- Carbolic Oil: It is used in the production of phenols, cresols and xylenols. The product is supplied in bulk liquid form in tank trucks.
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