This information about murdering his wife is not the same as the information in the linked article about using lye to make a body disappear. I don't believe that this linked article about using lye is reliable:
http://www.slate.com/articles/news_and_politics/explainer/2009/12/soluble_dilemma.html
Additionally, if we're going to hold journalists to such a high standard that they must use the criminal code terms used by police to describe a crime scene, rather than common day to day language, then we also have to ensure that linked sources are valid and verified with references.
Adolph Louis Luetgert
"Adolph Louis Luetgert, a German born entrepreneur who opened the A.L. Luetgert Sausage & Packing Company, in 1879, lives in Chicago infamy as
the man who may, or may not have, turned his beautiful young bride into packaged meats. ... This series of circumstantial evidence led Schuettler to devise the theory that Luetgert, in an effort to eliminate his young bride in order to marry a wealthy widow he was reportedly spotted all over the city with, had killed his wife,
boiled her remains in acid, and then
disposed of what was left over in the industrial furnaces at his meat packing factory. He and a team of officers drained the 12 foot by 5 foot smoking vat adjacent to the furnaces inside the factory and discovered a heavy ring with the letters "L.L." inscribed inside, as well as the fragment of a female skull.
Coincidentally, he claimed, Adolph Luetgert had given his beautiful young bride a very heavy metal ring with her new initials, L.L., Louise Luetgert, inscribed inside the band, upon their marriage. He argued vehemently that his wife had simply "disappeared".
Officers discovered an additional ring, as well as a toe phalanx, and a rib in the remains of the furnace, and, supposedly, a third ring was found in the cast-off pan of one of Luetgert's meat grinders."
http://www.examiner.com/article/the-sausage-king-kills-the-strange-story-of-adolph-luetgert
NOTE: this article claims that acid, not lye (per the linked article) was used, and that an industrial furnace could not destroy bone.