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12-hydroxystearic acid is prepared by the hydrogenation of castor oil, followed by saponification with sodium hydroxide and acidification with hydrochloric acid. [3] This process converts ricinoleate moieties in castor oil triglycerides to 12-hydroxystearate, with stearate as a byproduct from dehydration of the hydroxy acid followed by ...
Hydrogenation and saponification of castor oil yields 12-hydroxystearic acid, which is then reacted with lithium hydroxide or lithium carbonate to give high-performance lubricant grease. [ 46 ] Since it has a relatively high dielectric constant (4.7), highly refined and dried castor oil is sometimes used as a dielectric fluid within high ...
Fortune 500 companies based in Houston [1] Rank Company name 12: ExxonMobil: 48: Phillips 66: 60: Sysco: 105: Enterprise Products Partners: 106: Hewlett Packard ...
The origins of Houston Refining date to 1918, when Harry Sinclair (Sinclair Oil) began building a battery still on the site. [4] As the refinery grew, additional processing units were built to produce lubricants and aromatic chemicals, and with the addition of the fluid catalytic cracker in 1952, and the 736 coker in 1968, the refinery emerged ...
The economy of Houston is based primarily on the energy industry, particularly oil.However, health care, biomedical research, and aerospace also constitute large sectors. In 2021, the gross domestic product (GDP) of the Houston–The Woodlands–Sugar Land metropolitan statistical area (MSA) was 537 U.S. dollars billion, the fourth-largest of any metro area in the United States. [1]
In 2023, the Big 12 added Houston; not the biggest football team in Texas, but a men’s basketball program coming off a four consecutive Sweet 16 berths, a Final Four appearance in 2021 and still ...
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