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basic slag

noun

, Metallurgy.
  1. slag formed by the basic process of steelmaking, used as a furnace or converter lining or as a fertilizer.


basic slag

noun

  1. a furnace slag produced in steel-making, containing large amounts of calcium phosphate: used as a fertilizer
“Collins English Dictionary — Complete & Unabridged” 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Word History and Origins

Origin of basic slag1

First recorded in 1885–90
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Example Sentences

In a natural state it is obtained from bones, guano and wood ashes; and in an artificial condition from basic slag or Thomas’s phosphate, coprolites and superphosphate of lime.

Manuring with basic slag at the rate of from 5 to 10 cwt. per acre has been found to give excellent results on poor clays and peaty soils.

If basic slag and kainit are given, autumn is the time, as their action is slow.

This is the case, indeed, with many artificial manures, such as guano, bones, nitrate of soda, and basic slag.

The amount of effective lime in basic slag, as made by modern methods, is so small that its value is nearly negligible.

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