List of industrial processes
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Industrial processes are procedures involving chemical, physical, electrical or mechanical steps to aid in the manufacturing of an item or items, usually carried out on a very large scale. Industrial processes are the key components of heavy industry.
General processes
These may be applied on their own, or as part of a larger process.
- Liquefaction of gases - for ease of transportation
 - Supercritical drying, freeze-drying - removal of excess liquid
 - Scrubbing - removal of pollution from exhaust gases
 
Chemical processes
- Haber process - chemically binding gaseous nitrogen from the atmosphere to make ammonia
 - Smelting - chemically enhancing metals
 - Disinfection - chemical treatment to kill bacteria and viruses
 - Pyroprocessing - using heat to chemically combine materials, such as in cement.
 
Heat processes
- Flash smelting - a refinement on smelting, for sulfur-containing ores (produces copper, nickel and lead)
 
Electrolysis
The availability of electricity and its effect on materials gave rise to several processes for plating or separating metals.
- Gilding, Electroplating, Anodization, Electrowinning - depositing a material on an electrode
 - Electropolishing - the reverse of electroplating
 - Electrofocusing - similar to electroplating, but separating molecules
 - Electrolytic process - the generic process of using electrolysis
 - Electrophoretic deposition - electrolytic deposition of colloidal particles in a liquid medium
 - Electrotyping - using electroplating to produce printing plates
 - Metallizing, Plating, Spin coating - the generic term for giving non-metals a metallic coating
 
Cutting
- Shearing
 - Sawing
 - Plasma cutting
 - Water-jet cutting
 - Oxyacetylene cutting
 - Electrical discharge machining (EDM)
 - Machining - the mechanical cutting and shaping of metal which involves the loss of the material
 - Laser cutting
 
Physical processes
There are several physical processes for reshaping a material by cutting, folding, joining or polishing, developed on a large scale from workshop techniques.
- Forging - the shaping of metal by use of heat and hammer
 - Casting - shaping of a liquid material by pouring it into moulds and letting it solidify
 - Progressive stamping - the production of components from a strip or roll
 - Stamping
 - Hydroforming - a tube of metal is expanded into a mould under pressure
 - Sandblasting - cleaning of a surface using sand or other particles
 - Soldering, Brazing, Welding - a process for joining metals
 - Tumble polishing - for polishing
 - Precipitation hardening - heat treatment used to strengthen malleable materials
 - Work hardening - adding strength to metals, alloys, etc.
 - Case hardening, Differential hardening, Shot peening - creating a wear-resistant surface
 - Die cutting - A "forme" or "die" is pressed onto a flat material in order to cut, score, punch and otherwise shape the material
 
Moulding
The physical shaping of materials by forming their liquid form using a mould.
- Casting, Sand casting - the shaping of molten metal or plastics using a mould
 - Sintering, Powder metallurgy - the making of objects from metal or ceramic powder
 - Blow moulding as in plastic containers or in the Glass Container Industry - making hollow objects by blowing them into a mould.
 - Compression molding
 
Separation
Many materials exist in an impure form, purification, or separation provides a usable product.
- Comminution - reduces the size of physical particles (it exists between crushing and grinding)
 - Froth flotation, flotation process - separating minerals through floatation
 - Liquid–liquid extraction - dissolving one substance in another
 - Frasch process - for extracting molten sulfur from the ground
 
Distillation
- Fractional distillation, Steam distillation, Vacuum distillation - separating materials by their boiling point
 - Batch distillation
 - Continuous distillation
 - Fractionating column
 - Spinning cone
 
Additive
- Fused Deposition Modeling (FDM)
 - Stereolithography (SLA)
 - Selective laser sintering (SLS)
 - Photolithography
 
Iron and steel
Early production of iron was from meteorites, or as a by-product of copper refining. Heating iron ore and carbon in a crucible at 1000 K produces wrought iron. This process gained popularity during the Iron Age. Temperatures of 1300 K were produced around the 8th century by blowing air through the heated mixture in a bloomery or blast furnace (12th century); producing a strong but brittle cast iron. Furnaces were growing bigger, producing greater quantities; a factor contributing to the Industrial Revolution. In 1740 the temperature and carbon content could be controlled sufficiently to consistently produce steel; very strong and very workable. The 19th century saw the development of electric arc furnaces that produced steel in very large quantities, and are more easily controlled.
- Smelting - the generic process used in furnaces to produce steel, copper, etc.
 - Catalan forge, Open hearth furnace, Bloomery, Siemens regenerative furnace - produced wrought iron
 - Blast furnace - produced cast iron
 - Direct Reduction - produced direct reduced iron
 - Crucible steel
 - Cementation process
 - Bessemer process
 - Basic oxygen steelmaking, Linz-Donawitz process
 - Electric arc furnace
 
Petroleum and organic compounds
The nature of an organic molecule means it can be transformed at the molecular level to create a range of products.
- Cracking (chemistry) - the generic term for breaking up the larger molecules
 - Alkylation - refining of crude oil
 - Burton process - cracking of hydrocarbons
 - Cumene process - making phenol and acetone from benzene
 - Friedel-Crafts reaction, Kolbe-Schmitt reaction
 - Olefin metathesis, Thermal depolymerization
 - Transesterification - organic chemicals
 - Raschig process - part of the process to produce nylon
 - Oxo process - Produces aldehydes from alkenes
 - Polymerisation
 
Others
Organized by product:
- Aluminium - (Deville process, Bayer process, Hall-Héroult process, Wöhler process)
 - Ammonia, used in fertilizer & explosives - (Haber process)
 - Bromine - (Dow process)
 - Chlorine, used in chemicals - (Chloralkali process, Weldon process, Hooker process)
 - Fat - (Rendering)
 - Fertilizer - (Nitrophosphate process)
 - Glass - (Pilkington process)
 - Gold - (Bacterial oxidation, Parkes process)
 - Graphite - (Acheson process)
 - Heavy Water, used to refine radioactive products - (Girdler sulfide process)
 - Hydrogen - (Steam reforming, Water Gas Shift Reaction)
 - Lead (and Bismuth) - (Betts electrolytic process, Betterton-Kroll process)
 - Nickel - (Mond process)
 - Nitric acid - (Ostwald process)
 - Paper - (Pulping, Kraft process, Fourdrinier machine)
 - Rubber - (Vulcanization)
 - Salt - (Alberger process, Grainer evaporation process)
 - Semiconductor crystals - (Bridgeman technique, Czochralski process)
 - Silver - (Patio process, Parkes process)
 - Silicon Carbide - (Acheson process, Lely process)
 - Sodium carbonate, used for soap - (Leblanc process, Solvay process, Leblanc-Deacon process)
 - Sulfuric acid - (Lead chamber process, Contact process)
 - Titanium - (Hunter process, Kroll process)
 - Zirconium - (Hunter process, Kroll process, Crystal bar process, Iodide process)
 
A list by process:
- Alberger process, Grainer evaporation process - produces salt from brine
 - Bacterial oxidation - used to produce gold
 - Bayer process - the extraction of aluminium from ore
 - Chloralkali process, Weldon process - for producing chlorine and sodium hydroxide
 - Crystal bar process, Iodide process - produces zirconium
 - Dow process - produces bromine from brine
 - FFC Cambridge Process
 - Girdler sulfide process - for making heavy water
 - Hunter process, Kroll process - produces titanium and zirconium
 - Industrial rendering - the separation of fat from bone and protein
 - Lead chamber process, Contact process - production of sulfuric acid
 - Mond process - nickel
 - Nitrophosphate process - a number of similar process for producing fertilizer
 - Ostwald process - produces nitric acid
 - Pidgeon process - produces magnesium, reducing the oxide using silicon
 - Steam reforming, Water Gas Shift Reaction - produce hydrogen and carbon monoxide from methane or hydrogen and carbon dioxide from water and carbon monoxide
 - Vacuum metalising - a finishing process
 - Perstorp Formox process - The oxidation of methanol to produce formaldehyde.