Keywords: Bell-Krupp dephosphorization furnace.png fr Four de déphosphoration de la fonte en fusion procédé Bell-Krupp inventé en 1877 Ce procédé a été surclassé par le procédé Thomas en Liquid pig iron dephosphorization furnace Bell-Krupp process invented in 1877 This process was outclassed by the basic Bessemer process 1891 http //babel hathitrust org/cgi/pt id wu 89074785106 page/10/mode/1up Wedding's basic Bessemer process p 10 Hermann Wedding 1834-1908 Custom license marker 2013 01 03 PD-US PD-100 Uploaded with UploadWizard Thomas converter |