| The definitions contained in this "Chemical Glossary" are merely generic definitions that may prove helpful to those using this Web site. They do not supercede, nor are they intended to supercede, the definitions or specifications that may apply to various technical terms as they are used in specific Chevron Phillips Chemical documents, agreements, proposals or offerings, or in Chevron Phillips Chemical or third party patents. | |
C
| Carbon black |
|
Finely divided particles of carbon in powder form used in the manufacture of tires and other rubber articles, plastics, inks, and many other applications. Made by the incomplete combustion of oil, acetylene or natural gas. |
| |
|
|
| Catalyst |
|
Solids, liquids, or gases, which in small percentages accelerate or enable the reaction of two or more other chemicals without themselves being consumed itself in the reaction. Sometimes the catalysts react momentarily with the other chemicals, creating conditions that permit the desired reaction to take place. |
| |
|
|
| Commodity |
|
A general term referring to materials typically sold in large volumes in bulk and likely to be further processed before being used by consumers. |
| |
|
|
| Co-monomer |
|
A monomer, which, in combination with another monomer, is reacted to form a polymer, resin, or elastomer. Often used to modify the properties of a product, e.g. polyethylene. |
| |
|
|
| Co-product |
|
Two or more key substances that are jointly produced in a given process. Examples: (1) ethylene and propylene in a cracker (2) styrene and propylene oxide in a POSM (propylene oxide/styrene monomer) plant (3) benzene, toluene and xylenes in a reformer. |
| |
|
|
| Co-polymerization |
|
Polymerization of two or more dissimilar monomers such as the creation of SBR (styrene butadiene rubber) from styrene and butadiene. |
| |
|
|
| Cracking, thermal |
|
In the chemical industry, a manufacturing process in which distillate is exposed to high temperatures to produce hydrocarbon gases. Example: thermal cracking of ethane or naphtha to produce ethylene. |
| |
|
|
| Crystallization |
|
A manufacturing process in which low temperatures cause the feed stream to solidify in crystalline form . This is a means of purification through evaporation or centrification. Sometimes used in the production of p-xylene. |
| |
|
|
| Cumene |
|
An intermediate commodity chemical derived from benzene and propylene. Used to produce phenol and acetone which when oxidized and cleaved, produce resins, plastics and other materials. |
| |
|
|
| Cyclohexane |
|
A commodity chemical derived from benzene and hydrogen. Used in the manufacture of nylons, primarily in carpeting and for engineering resin applications. Chevron Phillips Chemical is a top producer of cyclohexane in North America and the world. |
|
|
Home
News Releases