Hoogovens Ijmuiden B.v.

Eric Jan Stuart

Bob De Mon

Jacobus Cornelis Vermeulen

Method for regenerating an electrolytic liquid for tinning purposes in which the electrolytic liquid is freed from ions of foreign metals introduced into it during the tinning action, characterized by the steps of (a) detinning of the electrolytic liquid through electrolysis and (b) releasing of the foreign metal ions by means of a cation exchanger.

Method for the regeneration of a tinning electrolyte

A method for preventing the formation of boiler scale from after treating gases produced in steel-making by adding to the wash water through which the gases pass a solution containing from 0.5 to 2% by weight HCl and from 100 to 150 grams Fe.sup.+.sup.+ ions per liter. The rate of addition of the solution being such that H.sup.+ and Fe.sup.+.sup.+ ions are supplied to the water in constant amounts per unit time.

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Heemskerk, Netherlands

Eric Jan Stuart