Operations
ICI operated a number of chemical sites around the world. In the UK the main plants were as follows:
- Billingham (in Stockton-on-Tees) and Wilton (in present day Redcar and Cleveland): ICI used the site to manufacture fertilisers in the 1920s and went on to produce plastics at Billingham in 1934. During World War II it manufactured Synthonia, a synthetic ammonia for explosives. The ICI Billingham Division was split into the ICI Heavy Organic Chemicals Division and ICI Agricultural Division in the 1960s. From 1971 to 1988 ICI Physics and Radioisotopes Section (later known as Tracerco) operated a small General Atomics TRIGA Mark I nuclear reactor at its Billingham factory for the production of radioisotopes used in the manufacture of flow and level instruments, among other products.
- Blackley (in Manchester): ICI used the site to manufacture dyestuffs. The dye business, known as the ICI Dyestuffs Division in the 1960s, went through several reorganizations. Through the years it was combined with other specialty chemicals businesses and became ICI Colours and Fine Chemicals and then ICI Specialties.
- Runcorn (in Cheshire): ICI used the site to manufacture chlorine and caustic soda. For many years it was known as ICI Mond Division but later became part of the ICI Chemicals and Polymers Division. The Runcorn site was also responsible for the development of the HiGEE and Spinning Disc Reactor concepts. These were originated by Professor Colin Ramshaw and led to the concept of Process Intensification: research into these novel technologies is now being pursued by the Process Intensification Group at Newcastle University.
- Winnington and Wallerscote (in Northwich, Cheshire): It was here that ICI manufactured sodium carbonate (soda ash) and its various by-products such as bicarbonate of soda, and sodium sesquicarbonate. The Winnington site, built in 1873 by the entrepreneurs John Tomlinson Brunner and Ludwig Mond, was also the base for the former the company Brunner, Mond & Co. Ltd. and, after the merger which created ICI, the powerful and influential Alkali Division. It was at the laboratories on this site that polythene was discovered by accident in 1933 during experiments into high pressure reactions. Wallerscote was built in 1926, its construction delayed by the First World War, and became one of the largest factories devoted to a single product (soda ash) in the world. However, the decreasing importance of the soda ash trade to ICI in favour of newer products such as paints and plastics, meant that in 1984 the Wallerscote site was closed, and thereafter mostly demolished. The laboratory where polythene was discovered was sold off and the building became home to a variety of businesses including a go-kart track and paintballing, and the Winnington Works were divested to the newly formed company, Brunner Mond, in 1991.
- Ardeer (in Stevenston, Ayrshire): ICI Nobel used the site to manufacture dynamite and other explosives and nitrocellulose-based products. For a time, the site also produced nylon and nitric acid. Nobel Enterprises was sold in 2002 to Inabata.
- Slough (in Berkshire): Headquarters of ICI Paints Division.
- Welwyn Garden City (in Hertfordshire): Headquarters of ICI Plastics Division until the early 1990s.
Read more about this topic: Imperial Chemical Industries
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