What is Calcination?
Calcination is the process of heating a solid material in an oven or furnace in order to cause the chemical separation of its components. The chemical separation can be so diverse that it lends itself to the chemical removal of crystalline water, removal of contaminants from the source material, thermal decomposition, and even phase changes; it is sometimes considered a process of purification. Calcination is done in the absence of air or a limited supply of air and normally takes place at temperatures below the melting point of the product materials. Calcination usually takes place in ovens, furnaces, or reactors of various designs including rotary kilns and shaft furnaces. The process of calcination helps industrial producers control end product characteristics, minimize contamination in waste materials and much more.
The Process of Calcination
Calcination centres around heating a substance under a controlled temperature and controlled environment. Calcination occurs when the material is brought to a temperature at which one or more components chemically separate into more basic building blocks. This results in the oxidation of a target component, removal of a volatile component or organic matter, chemical dehydration or decomposition of carbonates.
What Are Some Product Qualities That Are Controlled Through Calcination?
- Brightness
- Purity
- Porosity/surface area
- Chemical stability
- Colour
- Opacity
Parameters of Calcination
- Temperature control
- Retention time
- Atmospheric conditions: control of the amount of oxygen inside the oven or furnace
Calcination Ovens
The purpose of calcination ovens is to create a phase change or remove moisture; the function of a calcining oven is to heat solid materials to ores to induce phase transition, or to remove a volatile fraction or crystalline water as water vapour.
Examples of calcination processes include the following:
- Decomposition of hydrated materials
- Decomposition of carbonate minerals
- Decomposition of volatile matter
- Heat treatment to effect phase transformations
- Removal of ammonium ions
- Defluorination of uranyl fluoride to create uranium dioxide and hydrofluoric acid gases.
Industry Examples of Calcination
- Catalyst preparation
- Earth processing
- Kaolin Clay processing
- Pigment Production
- Production of Aluminium
Calcination is an effective thermal treatment in which the chemical separation of components gives producers the ability to remove volatile components, enhance the characteristics of products, remove crystalline water, and much more.
Rileys has a range of industrial ovens and furnaces in stock suitable for calcination processes.
SNOL 350°C Industrial Oven Range
350°C general purpose batch ovens, ideal for a vast range of low temperature thermal processes such as drying, curing and pre-heating.
- Stock No
- NEW070
- Category
- Industrial Ovens
- Model
- SNOL
- Internal Size (WxDxH mm) [?]
- Various
- Max Temp
- 350°C
- Condition
- Brand New
- Availability:
- Available subject to build time
- Price [?]
- Please call on +44 (0) 1922 45 8000
SNOL 650°C High Temperature Oven Range
General purpose high temperature, industrial, batch ovens which set the standard for a wide range of industrial processing applications
- Stock No
- NEW071
- Category
- Industrial Ovens
- Model
- SNOL
- Internal Size (WxDxH mm) [?]
- Various
- Max Temp
- 650°C
- Condition
- Brand New
- Availability:
- Available subject to build time
- Price [?]
- Please call on +44 (0) 1922 45 8000
SNOL 650°C High Temperature Oven with Powered Door
General purpose high temperature, industrial, batch oven suitable for a wide range of industrial processing applications. Includes a vertical powered door.
- Stock No
- NEW072
- Category
- Industrial Ovens
- Model
- SNOL
- Internal Size (WxDxH mm) [?]
- 600 x 750 x 900
- Max Temp
- 650°C
- Availability:
- Available subject to build time
- Price [?]
- Please call on +44 (0) 1922 45 8000
SNOL Custom Build Furnaces & Ovens
Custom built ovens and furnaces to meet your project requirements and standards.
- Stock No
- NEW079
- Category
- Industrial Ovens
- Model
- SNOL
- Condition
- Brand New
- Availability:
- Available subject to build time
- Price [?]
- Please call on +44 (0) 1922 45 8000
Romer 200°C Industrial Oven Range
200°C general purpose, electric, batch ovens from 3.4m3 upwards. Ideal for a vast range of low temperature thermal processes such as drying, curing and pre-heating.
- Stock No
- NEW080
- Category
- Industrial Ovens
- Model
- Romer SLS-O
- Internal Size (WxDxH mm) [?]
- Various
- Max Temp
- 200°C
- Other Info
- Touchscreen HMI Control
- Condition
- Brand New
- Availability:
- Available subject to build time
- Price [?]
- Please call on +44 (0) 1922 45 8000
Romer 200°C Convection Industrial Oven Range
200°C electric, batch ovens from 3.4m3 upwards. Without a fan' these ovens are a very cost effective option or ideal for delicate processes that cannot tolerate air movement.
- Stock No
- NEW081
- Category
- Industrial Ovens
- Model
- Romer SLS
- Internal Size (WxDxH mm) [?]
- Various
- Max Temp
- 200°C
- Other Info
- Radiant heating
- Condition
- Brand New
- Availability:
- Available subject to build time
- Price [?]
- Please call on +44 (0) 1922 45 8000
Romer Essential Electric Oven Range
200°C general purpose, electric, industrial ovens from 3.4m3 upwards. Ideal for a vast range of low temperature thermal processes such as drying, curing and pre-heating. The Essential range is a cost effective solution where temperature recording is not required.
- Stock No
- NEW082
- Category
- Industrial Ovens
- Model
- Romer
- Internal Size (WxDxH mm) [?]
- Various
- Max Temp
- 200°C
- Condition
- Brand New, Excellent Condition, Unused, Current Model
- Availability:
- Available subject to build time
- Price [?]
- Please call on +44 (0) 1922 45 8000
Romer 300°C Industrial Oven Range
Romer industrial ovens are 300°C general purpose batch ovens from 0.9m3 to 8.4m3 in size. Ideal for low to medium temperature heat processes.
- Stock No
- NEW083
- Category
- Industrial Ovens
- Model
- Romer Forced Air Circulation SM
- Year of Manufacture
- Brand New
- Internal Size (WxDxH mm) [?]
- Various (see chart below)
- Max Temp
- 300°C
- Other Info
- Touchscreen Control plus i-Cure Software
- Condition
- Brand New, Unused, Current Model
- Availability:
- Available subject to build time
- Price [?]
- Please call on +44 (0) 1922 45 8000
Romer 600°C Industrial Oven Range
600°C general purpose, electric, batch ovens from 0.9m3. Ideal for a vast range of low to medium temperature thermal processes, Ideal for tempering, glass annealing, drying, preheating, and stress relieving of various materials and components at temperatures up to 600ºC.
- Stock No
- NEW084
- Category
- Industrial Ovens
- Model
- Romer Forced Air Circulation SH
- Year of Manufacture
- Brand New
- Internal Size (WxDxH mm) [?]
- 1500 x 1600 x 1400mm
- Max Temp
- 600°C
- Other Info
- Touchscreen Control plus i-Cure Software
- Condition
- Brand New, Unused, Current Model
- Availability:
- Available subject to build time
- Price [?]
- Please call on +44 (0) 1922 45 8000
Romer Custom Built Industrial Ovens
Romer and RSW are working together to offer custom built ovens manufactured to your requirements and specifications. The perfect solution if you know what you need and cannot get it as a standard oven. High quality build standards and low prices define a very competitive package.
- Stock No
- NEW085
- Category
- Industrial Ovens
- Model
- Romer Various
- Year of Manufacture
- 2023
- Internal Size (WxDxH mm) [?]
- Various
- Other Info
- Custom Ovens For customer requirements.
- Condition
- Brand New, Unused, Current Model
- Availability:
- Available subject to build time
- Price [?]
- Please call on +44 (0) 1922 45 8000
Efco Top Loading Roller Lid Electric Drying and Treatments Oven
Efco Top Loading Well Type Roller Lid Electric Drying and Treatments Oven
- Stock No
- OA2172
- Category
- Industrial Ovens
- Model
- Efco Well Type Drying and Treatments Oven
- Year of Manufacture
- 08.1999
- Internal Size (WxDxH mm) [?]
- 1800 x 1800 x 2000
- Max Temp
- 150°C
- Other Info
- High 36kw rating
- Condition
- Seen working by RSW, Excellent Condition
- Location
- Rolls Royce stores, near Derby, UK
- Availability
- Available for immediate collection
- Sold As Seen Price [?]
- £ Login or Register for price.
Contract Engineering and Trading SDN BHD Fully Stainless Steel Air Circulated Front and Rear Door Box Oven
120°C Stainless Steel constructed through oven. Originally designed for the food / pharmaceutical industry but could be used in many industries.
- Stock No
- OA2229
- Category
- Industrial Ovens
- Model
- Contract Engineering and Trading SDN BHD YOUD2 R6H
- Year of Manufacture
- 2005
- Internal Size (WxDxH mm) [?]
- 835 x 1780 x 1945
- Max Temp
- 120°C
- Other Info
- Front and Rear Through Door Operation
- Condition
- From a working environment, Good Condition
- Refurbished Price [?]
- £ Login or Register for price.
- Sold As Seen Price [?]
- £ Login or Register for price.
RDM Engineering 250°C Gas Fired Vertical Door Industrial Box Oven
RDM Forced Air Recirculation Industrial Oven. Hugely flexible, designed for a wide range of applications.
- Stock No
- OA2250
- Category
- Industrial Ovens
- Model
- RDM Engineering Forced Air Recirculation Industrial Oven
- Year of Manufacture
- 2000
- Internal Size (WxDxH mm) [?]
- 2360 x 1800 x 1950
- Max Temp
- 250°C
- Other Info
- Easy Access Vertical Door No Floor
- Condition
- Good Condition, Current Model, Seen powered at RSW
- Availability
- Available for immediate collection
Despatch Heavy Duty Industrial Indirect Gas Fired Oven
The Despatch precision walk-in, trolley-in oven can accommodate a variety of specific product and process needs.
Typical applications include: aging, bonding, curing, drying, baking, heat treating, annealing and stress-relieving.
- Stock No
- OA2256J
- Category
- Industrial Ovens
- Model
- Despatch Special PWC 3-21
- Internal Size (WxDxH mm) [?]
- 1820 x 1800 x 1760
- Max Temp
- 260 °C
- Other Info
- Complete with Gas Safe Certificate @ RSW
- Condition
- Good Condition, Seen powered at RSW
- Availability
- Available for immediate collection
- Sold As Seen Price [?]
- £ Login or Register for price.
Stork Cooperheat 550°C Electric Vertical Bogie Hearth Furnace
Unique Stork Cooperheat electric vertical bogie hearth furnace with 3500mm vertical charge space. Eurotherm 3508 programmable controller, Eurotherm 6100A chart recorder and easy maneuverable bogie for loading and unloading.
- Stock No
- OA2268
- Category
- Industrial Ovens
- Model
- Stork Cooperheat Bogie Hearth
- Year of Manufacture
- 2015
- Internal Size (WxDxH mm) [?]
- 1300 x 1300 x 3500
- Max Temp
- 550°C
- Other Info
- Stainless Steel Lined
- Condition
- From a working environment, Excellent Condition, Seen powered at RSW
- Refurbished Price [?]
- £ Login or Register for price.
- Sold As Seen Price [?]
- £ Login or Register for price.
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