Non-ozone depleting chlorination solvents
AssigneeDover Chemical Corporation
InventorsDonald R. Stevenson, Satyanarayana Kodali
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Abstract
A process for the chlorination of a paraffin wax is described which includes the steps of contacting the paraffin wax or partially chlorinated paraffin wax with chlorine wherein the improvement is the use of a non-ozone depleting aromatic solvent with a boiling point less than 180.degree. C., preferably less than 160.degree. C. and which is non-reactive to chlorine in a free radical chlorination environment, in contrast to typical C.sub.1 -C.sub.2 aliphatic solvents.
Claims11
In a process for the chlorination of a paraffin wax, wherein the wax is heated to a temperature sufficient to produce a molten wax in a solvent, the wax being chlorinated with a chlorinating agent at a temperature sufficient to produce a chlorinated molten wax;
- the improvement comprising the use of a non-ozone depleting aromatic solvent or blends thereof, with a boiling point less than 160.degree. C. and which is non-reactive to chlorine in a free radical chlorination environment wherein the solvent is a halogenated benzene as shown by formula (I) ##STR37## wherein X is a halogen selected from the group consisting of chlorine, fluorine and bromine and n is an integer from. 1 to 6.
In a process for the chlorination of a paraffin wax, wherein the wax is heated to a temperature sufficient to produce a molten wax in a solvent, the wax being chlorinated with a chlorinating agent at a temperature sufficient to produce a chlorinated molten wax;
- the improvement comprising the use of a non-ozone depleting aromatic solvent of formula (VI) ##STR39## wherein R is an alkyl radical from 1 to 6 carbons, X and Y are different halogens selected from the group consisting of fluorine, bromine and chlorine, m is an integer necessary to satisfy the covalent bonds to R, and p, q, and r are integers from 0 to 6, with the limitation that p+q+r must be less than or equal to 6, and also greater than or equal to 1, or blends thereof, and which is non-reactive to chlorine in a free radical chlorination environment.
Dependencies are inferred from the claim text.