单词 | petrochemistry |
释义 | petrochemistryn.1 Geology. The branch of science concerned with the chemical composition and formation of rocks (as distinct from minerals, ore deposits, etc.), esp. igneous and metamorphic rocks. Also: the petrochemical characteristics of a rock, structure, etc. ΘΚΠ the world > the earth > earth sciences > geology > geochemistry > [noun] geochemistry1888 petrochemistry1937 1937 Bull. Volcanologique 1 59 (heading) Petro~chemistry of the Scottish Carboniferous-Permian igneous rocks. 1958 Q. Jrnl. Geol. Soc. 113 393 (heading) The petrochemistry of the Ardara aureole. 1971 Internat. Geol. Rev. 13 561/2 In petrochemistry we are often required to compare associations of rocks of different regions and assign them to definite petrographic groups. 1974 Nature 18 Oct. 581/2 There is, as yet, insufficient documentation of the relationship between precisely measured Sr isotope ratios and the petrochemistry of Icelandic rocks. 1995 Chem. Geol. 120 255 (title) Experimental petrochemistry of some highly siderophile elements at high temperatures, and some implications for core formation and the mantle's early history. This entry has been updated (OED Third Edition, December 2005; most recently modified version published online March 2022). petrochemistryn.2 The branch of chemistry concerned with petroleum and natural gas, and with their refining and processing. ΘΚΠ the world > matter > chemistry > organic chemistry > hydrocarbons > [noun] > petroleum varieties > petrochemistry petrochemistry1942 1942 Oil & Gas Jrnl. 18 June 96/1 The section in next week's Journal devoted to petro-chemistry is something you'll not want to miss. 1954 Chem. & Engin. News 20 Sept. 3719/3 Entrance of one company into field of petro~chemistry in 1925 was followed by dozens of others. 1979 C. Raimbault in Energy Conservation in Refining & Petrochem. 44 Petrochemistry relies essentially on ethylene and benzene derivatives. 1996 Science 9 Feb. 737/1 Solid acid catalysts, such as aluminosilicates.., are workhorses of industrial and petrochemistry. This entry has been updated (OED Third Edition, December 2005; most recently modified version published online March 2022). < n.11937n.21942 |
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