The recovery of hydrochloric acid from spent pickling liquor by pyrohydrolysis is not only environmentally advantageous in that it removes the need to neutralise and dispose of spent acid and that it reduces water consumption. It is also highly cost-effective, as it eliminates disposal costs, reduces the cost of replacement acid and generates a valuable oxide byproduct.

Conventional electrolytic tinning lines using soluble tin anodes have high maintenance requirements not only to replace consumed anodes but also because the electrolyte has to be periodically drained, and diluted as tin dissolves from the anode faster than it is plated onto the strip. Tenova has developed a new low-sludge tin plating process using insoluble anodes and a tin dissolution plant linked to the electrolyte circulation circuit to replenish the plated out tin.

Conventional electrolytic tinning lines using soluble tin anodes have high maintenance requirements not only to replace consumed anodes but also because the electrolyte has to be periodically drained and diluted as tin dissolves from the anode faster than it is plated onto the strip. Tenova has developed a new low-sludge tin plating process using insoluble anodes and a tin dissolution plant linked to the electrolyte circuit to replenish the plated out tin.

The recovery of hydrochloric acid from spent pickling liquor by pyrohydrolysis is both environmentally advantageous, as it removes the need to neutralise and dispose of spent acid and reduces water consumption, as well as cost-effective, as it eliminates disposal costs, reduces the cost of replacement acid and generates a valuable oxide by-product.

To increase throughput and broaden the range of material treated at Duferco la Louvière, Belgium, a wide range pickling line (WRPL) combination push-pull/semi-continuous pickle line was successfully started in spring 2006, a longside the existing continuous pickle line.

The recovery of hydrochloric acid from spent pickling liquor by pyrohydrolysis is both environmentally appropriate as it removes the need to neutralise and dispose of spent acid and reduces water consumption, but it is also cost effective as it removes disposal costs, the cost of replacement acid and generates a valuable oxide by-product.

To increase throughput and broaden the range of material treated at Duferco la Louvière, Belgium, a wide range pickling line (WRPL) combination push-pull/semi-continuous pickle line was successfully started in spring 2006, alongside the existing continuous pickle line.

Tenova has developed a new tin dissolution process based on the technology of insoluble anodes. The application of the Tenova Insoluble Anodes Technology minimizes the amount of sludge produced and hence the loss of tin.

Article in Portuguese - The passivation of galvanized or cold rolled strips on galvanizing or painting lines can be carried out for different purposes, the most important one being the increase in corrosion resistance of the material. This article describes the passivation and conversion of strip surfaces with devices called chemical roll coaters.

Article in Chinese - While a number of drawbacks of conventional tinplating processes can be overcome by using insoluble anodes, their use can have some other disadvanrages. Tenova in cooperation with CSM Centro Sviluppo Materiali in Rome, has overcome those to create a modern insoluble-anode tinplating process.