earth separator
61Hydrochloric acid regeneration — or HCl regeneration refers to a chemical process for the reclamation of bound and unbound HCl from metal chloride solutions as hydrochloric acid.Field of applicationThe commercially most relevant field of application for HCl regeneration… …
62Down in the Bottomlands — is a novella written by Harry Turtledove. It takes place in an alternative history in which the Atlantic Ocean did not reflood the Mediterranean Sea 5.5 million years ago in the Miocene Epoch, as it did in our history. The Mediterranean Basin… …
63Crosstime Traffic — For the collection of short stories of the same name by Lawrence Watt Evans, see Crosstime Traffic Watt Evans. Crosstime Traffic is a series of books by Harry Turtledove. The central premise of the stories is an Earth that has discovered access… …
64The Darkness Series — is a series of six fantasy novels by Harry Turtledove. Though a fantasy the general history, geography, and combatants are analogs of World War II, or the Derlavai War in this universe.[1] Many of the characters are also the equivalents of… …
65Settling Accounts: Drive to the East —   …
66Miscellaneous Technical (Unicode block) — Miscellaneous Technical is the name of a a Unicode block ranging from U+2300 to U+23FF, which contains various common symbols which are related to and used in the various technical, programming language and academic professions. Symbol ⌂ (HTML… …
67Filtration — This article is about operation of solid fluid separation. For the mathematical concept, see filtration (mathematics). For the equipment used, see Filter (disambiguation). For filtration used in winemaking, see Filtration (wine). Diagram of… …
68Vacuum cleaner — Cylinder vacuum cleaner for home use. French train vacuum cleaner …
69Iron ore — Iron ores are rocks and minerals from which metallic iron can be economically extracted. The ores are usually rich in iron oxides and vary in colour from dark grey, bright yellow, deep purple, to rusty red. The iron itself is usually found in the …
70Dry cleaning — (or dry cleaning) is any cleaning process for clothing and textiles using a chemical solvent other than water. The solvent used is typically tetrachloroethylene (perchloroethylene), abbreviated perc in the industry and dry cleaning fluid by the… …
