aromatic raw material

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• Perfume — For other uses, see Perfume (disambiguation). The Perfume Maker, by Rodolphe Ernst Perfume (English: /ˈpɝː.fjuːm/, French parfum pronounced: [paʁ.fœ̃]) is a mixture of fragrant …   Wikipedia

• Fragrance extraction — refers to the extraction of aromatic compounds from raw materials, using methods such as distillation, solvent extraction, expression, or enfleurage. The results of the extracts are either essential oils, absolutes, concretes, or butters,… …   Wikipedia

• chemical industry — Introduction       complex of processes, operations, and organizations engaged in the manufacture of chemicals and their derivatives.       Although the chemical industry may be described simply as the industry that uses chemistry and… …   Universalium

• petroleum refining — Introduction  conversion of crude oil into useful products. History Distillation of kerosene and naphtha       The refining of crude petroleum owes its origin to the successful drilling of the first oil well in Titusville, Pa., in 1859. Prior to… …   Universalium

• chemistry — /kem euh stree/, n., pl. chemistries. 1. the science that deals with the composition and properties of substances and various elementary forms of matter. Cf. element (def. 2). 2. chemical properties, reactions, phenomena, etc.: the chemistry of… …   Universalium

• Polyester — For the 1981 motion picture, see Polyester (film). SEM picture of a bend in a high surface area polyester fiber with a seven lobed cross section …   Wikipedia

• heterocyclic compound — Any of a class of organic compounds whose molecules contain one or more rings of atoms with at least one atom (the heteroatom) being an element other than carbon, most frequently oxygen, nitrogen, or sulfur. As in regular cyclic hydrocarbons,… …   Universalium

• Pu-erh tea — Pu erh, Pu er tea, Puer tea or Bolay tea is a type of tea made from a large leaf variety of the tea plant Camellia sinensis and named after Pu er county near Simao, Yunnan, China. Pu erh tea can be purchased as either raw/green (sheng) or… …   Wikipedia

• Business and Industry Review — ▪ 1999 Introduction Overview        Annual Average Rates of Growth of Manufacturing Output, 1980 97, Table Pattern of Output, 1994 97, Table Index Numbers of Production, Employment, and Productivity in Manufacturing Industries, Table (For Annual… …   Universalium

• Petroleum — For other uses, see Petroleum (disambiguation). Proven world oil reserves, 2009 …   Wikipedia

• Cement kiln — Cement kilns are used for the pyroprocessing stage of manufacture of Portland and other types of hydraulic cement, in which calcium carbonate reacts with silica bearing minerals to form a mixture of calcium silicates. Over a billion tonnes of… …   Wikipedia