Juan Celada Salmón, Mexican metallurgical engineer (Hermosillo, Sonora State 14 February 1916 – Monterrey 08 December 2017)

Contributions

Led the team that developed a system for the direct reduction of iron ore to produce sponge iron (HYL iron ore direct production process) 1952

A method for arc balancing an electric furnace AISE Yearbook (1983)

PATENTS (398 in Mexico and abroad; incomplete list)

With Garza Garcia. Graphite electrode with internal cooling for electric furnaces US4,853,942 (1987)

With J.F. Price Falcón, R. Viramontes Brown & P.W. Mackay. Metodo mejorado para reducir minerales de oxido de hierro a hierro esponja. MX154126 (1987)

Improvements to method to correct voltage signals that are supplied to the control of a three-faced electric arc oven used in the production of steel. MX1552310A (1983)

Improvements to the system for balancing the bows of an electric bow oven for the production of steel MX155229A (1983)

With P.W. Mackay, J.F. Price Falcón & R. Viramontes Brown. Method of making sponge metal US4375983A (1981)

Procedimiento mejorado para la reducción directa gaseosa de minerales de hierro de esponja MX144823 (1981)

With P.W. Mackay, J.F. Price Falcón & R. Viramontes Brown. Process for reducing metal oxides DE150225A5 (1980)

With P.W. Mackay. Procedure for chargeable reduction of iron oxides to the fungi NO144833B (1976)

With P.W. Mackay, E.R. Martínez, A. Villaseñor & R. Viramontes Brown. Method and device for the production of metal sponge DE2332999C3 (1976)

With E.R. Martínez & P.W. Mackay. Method and apparatus for reduction of particulate metal ores CA966655A (1975)

With R. de la Peña, M.T. de la Torre, P.W. Mackay, E.R. Martínez & J.M.Peña. Process for the gas-shaped reduction of metal ores DE2405898A1 (1974)

With D. Villarreal & P.W. Mackay. Method and apparatus of reducing particulate metal ores AU3114471A (1973)

With P.W. Mackay. Method for gaseous reduction of metal ores US3890142A (1973)

With P.W. Mackay & E.R. Martínez. Method and apparatus for reducing a particulate metal ore to metal particles DE2256266C3 (1973)

With P.W. Mackay & R. De la Peña. Method and apparatus for reducing particulate ores to sponge iron US3889864A & DE2250056B2 (1973)

With P.W. Mackay, E.R. Martínez, A. Villaseñor & R. Viramontes Brown. Method for reducing metal ores US3904397A (1972)

With G. Guerra Garcia, P.W. Mackay, E.R. Martínez & A. Villaseñor. Process for the reduction of crushed ore to metal by means of a reducing gas DE2255759B2 (1972)

With P.W. Mackay. Pressure lock for the inward and outward transfer of particulate reducible iron ore under the action of gravity DE214898C3 (1972)

Method of charging electric arc steelmaking furnace US3681049A (1972)

With D. Villarreal, A. Reyna & P.W. Mackay. Reduction chamber for the batchwise reduction of metal oxides DE1533837B1 & DE1533837C (1971)

Method and apparatus for making steel. AU444038B2 (1971)

With P.W. Mackay & D. Villarreal. Method of two-stage cooling of a metal sponge DE1533836C (1971)

With P.W. Mackay. Pressure lock and valve assembly for gravity feeding of particulate material CA952869A (1971)

Ore treating apparatus US3052457A (1962) & CA839642A (1970)

With D. Villarreal & P.W. Mackay. Method for producing sponge iron US3423201A (1969)

With D. Villarreal & P.W. Mackay. Process for reducing metal oxide to metal CA824621A (1969)

Continuous charging plant for sponge-iron into arc melting furnace DE1948137B2 (1969)

Method and apparatus for making steel AU44403832 (1969)

With P.W. Mackay. Process of reducing metal oxide to metal AU414559B2 (1966) & AU414559B2 (1968)

With C.K. Mader. Process for reducing metal oxides CA734877A (1966)

With C.K. Mader. Gas reducing of metal oxide CA706338A (1965)

With D. Villarreal, A. Reyna & P.W. Mackay. Ore treating apparatus AU414500B2 & AU1963067A (1965)

With C.K. Mader. Method for reducing metal oxides US3136623A & US3136625A & US3136624A (1961)

Retort for reduction of ores CA619678A (1961)

Method of making sponge iron US2900247A (1957), US3128174A (1959) & CA6021209A (1960)

Iron ore reduction process FR1226565A (1960)

Method of reducing iron ore AU234055B2 (1959) AU4779359A & GB885890A (1959)

Process for reducing iron ore DE1267237B (1959)

Honors

Gold Medal, WIPO (2000)