lixiviating

The material in powder derived from the evaporation of the wash is stored at the extremity of the apparatus into a lixiviating vessel, G, provided with a stirrer, H.

Scientific American Supplement, No. 514, November 7, 1885 Various

It continued in use as long as men were unacquainted with the art of lixiviating salt, or, in other words, as long as they had no vitriol manufactories.

Forty Centuries of Ink 1904

[Footnote: Egypt manufactures annually about 1,200,000 pounds of nitre, by lixiviating the ancient and modern rubbish-heaps around the towns.]

The Earth as Modified by Human Action George P. Marsh 1841

But then the lixiviating water is not carried by men, as in Madrid, but conducted by pipes to every filter.

A journey through Spain in the years 1786 and 1787 1792

In really successful mining it is in the last degree important that the mode of extraction of metals in the most scientific manner should be thoroughly understood, but as a general rule the science of metallurgy is but very superficially grasped even by those whose special business it is to treat ore bodies in order to extract their metalliferous contents, and whether in quartz crushing mill, lixiviating, or smelting works there is much left to be desired in the method of treating our ores.

Getting Gold: a practical treatise for prospectors, miners and students