and engineering journal . Large Stocks are always on hand, SOLE SOUTH AFRICAN AGENTS BARTLE&CO., LTD., LOVEDAY HOUSE, PHONE 3553. WIRES: FAGGOT. JOHANNESBURG AND AT KIMBERLEY AND DURBAN. PI ? ? ca n 30 THE MINING AND ENGINEERING JOURNAL. Jburg, September 10, l&Ji % ffi$ ^m: 5^ ^^ /JV^ ^r? ^^ ^v**ERn^ ^^ I ENGINEERING The Siemens-Martin Steel Making Process. By Jonas Bethell, Messrs. Spear & Jackson, Steel Makers, Sheffield. The Siemens-Martin process depends upon pr-oducer gasas fuel, and before explaining the actual process I willdescribe how this gas is made. A
and engineering journal . Large Stocks are always on hand, SOLE SOUTH AFRICAN AGENTS BARTLE&CO., LTD., LOVEDAY HOUSE, PHONE 3553. WIRES: FAGGOT. JOHANNESBURG AND AT KIMBERLEY AND DURBAN. PI ? ? ca n 30 THE MINING AND ENGINEERING JOURNAL. Jburg, September 10, l&Ji % ffi$ ^m: 5^ ^^ /JV^ ^r? ^^ ^v**ERn^ ^^ I ENGINEERING The Siemens-Martin Steel Making Process. By Jonas Bethell, Messrs. Spear & Jackson, Steel Makers, Sheffield. The Siemens-Martin process depends upon pr-oducer gasas fuel, and before explaining the actual process I willdescribe how this gas is made. Although ordinary coal gas would serve our purpose inevery way, the cost of producing same is prohibitive. Thesystem of gas production suitable for steel-making require-ments was invented by Siemens, and his method has sincebeen improved and modified by other inventors. .However, the general principles on which they haveworked will suffice in my present article. When a current of air and steam is blown over incan-descent coke, the steam is decomposed, and the oxygen outof the air, together with the oxygen from the steam, com-bines with the carbon in the coke, simultaneously liberatinghydrogen from the steam and nitrogen from the air. Steam + Carbon = Carbon Monoxide + + Carbon = Carbon Monoxide + Nitrogen. Under certa
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Keywords: ., bo, bookcentury1800, bookdecade1890, booksubjectmineralindustries
