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  2. Map seed - Wikipedia

    en.wikipedia.org/wiki/Map_seed

    This is the "new game" screen in Factorio. In addition to specifying the map seed itself, Factorio can also encode all the map settings into a single map exchange string . Games which use procedural generation and include support for setting the map seed include Ark: Survival Evolved , Minecraft , Factorio , SCP – Containment Breach , and the ...

  3. Factorio - Wikipedia

    en.wikipedia.org/wiki/Factorio

    Factorio is a construction and management simulation game developed and published by Czech studio Wube Software. The game was announced via an Indiegogo crowdfunding campaign in 2013 and released for Windows , macOS , and Linux on 14 August 2020 following an early access phase, which was made available on 25 February 2016.

  4. Parikh–Doering oxidation - Wikipedia

    en.wikipedia.org/wiki/Parikh–Doering_oxidation

    The Parikh–Doering oxidation is an oxidation reaction that transforms primary and secondary alcohols into aldehydes and ketones, respectively. [1] The procedure uses dimethyl sulfoxide (DMSO) as the oxidant and the solvent, activated by the sulfur trioxide pyridine complex (SO 3 •C 5 H 5 N) in the presence of triethylamine or diisopropylethylamine as base.

  5. Coal liquefaction - Wikipedia

    en.wikipedia.org/wiki/Coal_liquefaction

    The resulting coal tars and oils from pyrolysis generally require further treatment before they can be usable as motor fuels; they are processed by hydrotreating to remove sulfur and nitrogen species, after which they are finally processed into liquid fuels. [11] In summary, the economic viability of this technology is questionable. [10]

  6. Smelting - Wikipedia

    en.wikipedia.org/wiki/Smelting

    Smelting involves more than just melting the metal out of its ore. Most ores are the chemical compound of the metal and other elements, such as oxygen (as an oxide), sulfur (as a sulfide), or carbon and oxygen together (as a carbonate). To extract the metal, workers must make these compounds undergo a chemical reaction.

  7. Contact process - Wikipedia

    en.wikipedia.org/wiki/Contact_process

    The contact process is a method of producing sulfuric acid in the high concentrations needed for industrial processes. Platinum was originally used as the catalyst for this reaction; however, because it is susceptible to reacting with arsenic impurities in the sulfur feedstock, vanadium(V) oxide (V 2 O 5) has since been preferred.

  8. Microbial oxidation of sulfur - Wikipedia

    en.wikipedia.org/wiki/Microbial_oxidation_of_sulfur

    Most of the sulfur oxidizers are autotrophs that can use reduced sulfur species as electron donors for CO 2 fixation. The microbial oxidation of sulfur is an important link in the biogeochemical cycling of sulfur in environments hosting both abundant reduced sulfur species and low concentrations of oxygen, such as marine sediments, oxygen ...

  9. Tricalcium aluminate - Wikipedia

    en.wikipedia.org/wiki/Tricalcium_aluminate

    The feed and fuel in the kiln system are preferably controlled chemically to keep the sulfate and alkalis in balance. However, this stoichiometry is only maintained if there is substantial surplus oxygen in the kiln atmosphere: if "reducing conditions" set in, then sulfur is lost as SO 2, and reactive aluminates start to form. This is readily ...