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  2. Alkylation unit - Wikipedia

    en.wikipedia.org/wiki/Alkylation_unit

    The typical hydrofluoric acid (HF) alkylation unit requires far less acid than a sulfuric acid unit to achieve the same volume of alkylate. The HF process only creates a small amount of organofluorine side products which are continuously removed from the reactor and the consumed HF is replenished.

  3. Hydrogen fluoride - Wikipedia

    en.wikipedia.org/wiki/Hydrogen_fluoride

    The process involves dehydrogenation of n-paraffins to olefins, and subsequent reaction with benzene using HF as catalyst. For example, in oil refineries "alkylate", a component of high- octane petrol ( gasoline ), is generated in alkylation units, which combine C 3 and C 4 olefins and iso -butane .

  4. Phillips Petroleum Company - Wikipedia

    en.wikipedia.org/wiki/Phillips_Petroleum_Company

    The company invented an HF alkylation process in 1940. [13] The American petrochemical industry took off, first making such as styrene , ethylene , propylene and butadiene . [ 2 ] After the war, it formed a subsidiary, Phillips Chemical Co., which entered the fertilizer business by producing anhydrous ammonia from natural gas. [ 14 ]

  5. Alkylation - Wikipedia

    en.wikipedia.org/wiki/Alkylation

    C-alkylation is a process for the formation of carbon-carbon bonds. The largest example of this takes place in the alkylation units of petrochemical plants, which convert low-molecular-weight alkenes into high octane gasoline components.

  6. Linear alkylbenzene - Wikipedia

    en.wikipedia.org/wiki/Linear_alkylbenzene

    Hydrogen fluoride (HF) and aluminium chloride (AlCl 3) are the two major catalysts for the alkylation of benzene with linear mono-olefins. The HF-based process is commercially dominant; however, the risk of releasing HF (a poisonous substance) into the environment became a concern particularly after the Clean Air Act Amendment. In 1995, a solid ...

  7. Hegseth orders immediate pause on gender-affirming medical ...

    www.aol.com/hegseth-orders-immediate-pause...

    Defense Secretary Pete Hegseth ordered an immediate pause on gender-affirming medical care procedures for all active-duty service members in a memo that was addressed to senior Pentagon leadership ...

  8. What's the healthiest part of the chicken to eat? - AOL

    www.aol.com/lifestyle/whats-healthiest-part...

    At a glance. If you love chicken but just want the top line details, I've got you covered. To dive deeper, keep scrolling or click on the titles below.

  9. Hydrofluoric acid - Wikipedia

    en.wikipedia.org/wiki/Hydrofluoric_acid

    Hydrofluoric acid is a solution of hydrogen fluoride (HF) in water.Solutions of HF are colorless, acidic and highly corrosive.A common concentration is 49% (48-52%) but there are also stronger solutions (e.g. 70%) and pure HF has a boiling point near room temperature.