Electrochemical Technologies

Electrochemistry group leader John Collins

John Collins

Principal Engineer, Electrochemistry

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Assembling a C-Flow cell


C-Flow is a range of electrochemical cells and systems. With 50 years’ experience in providing technology solutions and equipment, C-Tech Innovation has a deep institutional understanding of electrochemistry and the needs of researchers, engineers and technicians working in the field. Read More

SCAIL-UP aluminium plating equipment

Aluminium Electroplating

A successful industrial process for aluminium electroplating is a significant challenge in the surface finishing industry. Current solutions use hazardous solvents such as toluene or vapour deposition, which carry significant obstacles to safe deployment and scale-up. C-Tech has developed a fully-automated aluminium plating process using ionic liquids that represents a significant improvement on current methods. Read More

Electrochemical Synthesis

Electrosynthesis in chemical manufacture is the synthesis of chemical compounds in an electrochemical cell. The main advantage of electrosynthesis over an ordinary redox reaction is avoidance of the potentially wasteful other side reactions and the ability to precisely tune the required power input to achieve the chemical reaction, thereby avoiding unnecessary energy usage. Good electrosynthetic conditions use a solvent and electrolyte combination that minimizes electrical resistance, with electrodes selected to provide favorable electron transfer properties towards the substrate whilst minimising the activation energy for side reactions.

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C-Tech has many years of experience in the field of electrodialysis and has built numerous electrodialysis systems ranging from small units treating around 50ml of fluid to larger stacks with throughput of hundreds of litres. C-Tech has collaborated with both universities and companies to develop electrodialysis processes for a number of requirements, including the following:

  • The recovery of hydrofluoric acid and sodium hydroxide from a dilute sodium fluoride effluent stream.
  • The in-situ and downstream removal of organic acids from enzyme reactions and fermentations, which helps reduce reaction inhibition thereby increasing target molecule productivity.
  • C-Tech has successfully applied two-compartment electrodialysis with bipolar membranes (EDBM) in industrial contexts to recover a pure organic acid from a mixture of base and salt.

Key benefits of electrodialysis

Electrodialysis is an industry-ready membrane process used for pollution control, desalination, resource recovery and chemical processing. It can be used to produce potable water from brackish sources and remove salts from foodstuffs, recover salts from effluent, and split salts into their constituent acid and base, for example for recovery of mixed acids from spent pickling liqour. Read More