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Chemicals

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There are currently 11 names in this directory beginning with the letter D.
De-bottlenecking
Process of removing factors limiting production.
De-stocking
Bringing down inventory levels.
Dehydration
Removal of water from a substance by a chemical reaction.
Dehydrogenation
A chemical reaction in which hydrogen is removed from a compound. Dehydrogenation of organic compounds converts single carbon-carbon bonds into double bonds. Used to produce propylene from propane.
Derivative
Chemical compound derived or made from other chemicals. Polyethylene is an ethylene derivative.
Diluent
A modifier added to a resin to lower the viscosity (thin it down).
Disproportionation
A method used in the production of benzene whereby a compound is simultaneously oxidized and reduced.
Distillation
A method used to separate two or more substances in a mixture by vaporizing followed by condensation.
Dopant
The impurities added to silicon during the manufacturing of a semiconductor to increase or decrease various properties such as electrical conductivity. Dopants may include arsenic, antimony, bismuth, and/or phosphorus.
Downstream activities
Refers to processing of hydrocarbons such as crude oil and natural gas into compounds that form petrochemical feedstocks or other usable products.
Drying
Removal of small quantities of water/solvents from a sample by physical or chemical means.