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

Word History and Origins

Origin of basic slag¹

First recorded in 1885–90

Example Sentences

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

From Project Gutenberg

The manures used include soot, fish guano, blood manure and phosphates—basic slag amongst the last-named.

From Project Gutenberg

The same applies to basic slag, which contains a considerable quantity of free lime in its composition.

From Project Gutenberg

Slow-acting manures are consequently best, such as basic slag or bones, which have been found to be of special value.

From Project Gutenberg

Nitrate of soda must not be mixed with superphosphate, but it may be added to basic slag and the potash manures.

From Project Gutenberg