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Class Information
Number: 203/60
Name: Distillation: processes, separatory > Adding material to distilland except water or steam per se > Organic compound > Ester
Description: Processes in which the organic compound is an ester.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 4128457 |
Process for the separation of butadiene by plural stage extractive distillation |
Dec. 5, 1978 |
| 4121978 |
Method of separating chlorinated aliphatic hydrocarbons from mixtures thereof, by extractive distillation |
Oct. 24, 1978 |
| 4116999 |
Recovery of terephthalonitrile |
Sep. 26, 1978 |
| 4115206 |
Separation of phenol-, cyclohexanone-, and cyclohexylbenzene-containing mixtures employing an organic carbonate |
Sep. 19, 1978 |
| 4115204 |
Separation of phenol-, cyclohexanone-, and cyclohexylbenzene-containing mixtures employing an N,N-disubstituted amide |
Sep. 19, 1978 |
| 4115205 |
Separation of phenol-, cyclohexanone-, and cyclohexylbenzene-containing mixtures employing an N-substituted lactam |
Sep. 19, 1978 |
| 4115207 |
Separation of phenol-, cyclohexanone-, and cyclohexylbenzene-containing mixtures employing a trisubstituted phosphate |
Sep. 19, 1978 |
| 4087335 |
Inhibitors for vinylbenzyl chloride and vinyltoluene decomposition |
May. 2, 1978 |
| 4081332 |
Extractive distillation of C.sub.5 hydrocarbons using acetonitrile and additives |
Mar. 28, 1978 |
| 4076950 |
Process for manufacture of alkyl esters of aliphatic carboxylic acids |
Feb. 28, 1978 |
| 4065362 |
Purification of organic isocyanates |
Dec. 27, 1977 |
| 4038156 |
Butadiene recovery process |
Jul. 26, 1977 |
| 4036703 |
Method of separating chlorinated aliphatic hydrocarbons with 1 to 3 carbon atoms from mixtures thereof by extractive distillation |
Jul. 19, 1977 |
| 4031153 |
Separation of styrene from xylenes |
Jun. 21, 1977 |
| 4028195 |
Recovery of alkylene glycols by distillation with aqueous organic acid |
Jun. 7, 1977 |
| 4026930 |
Azeotropic distillation of 1,1,1,3,3,3-hexafluoroisopropyl trifluoroacetate with fluorotrichloromethane |
May. 31, 1977 |
| 4019965 |
Separation of phenol, cyclohexanone, and cyclohexylbenzene containing mixtures employing dialkyl and dicycloalkyl phthalates |
Apr. 26, 1977 |
| 4016049 |
Separation of phenol-cyclohexanone azeotrope by extractive distillation with adipic acid diester |
Apr. 5, 1977 |
| 4014753 |
Propylene oxide recovery by azeotropic distillation of methyl formate-2-methylpentane |
Mar. 29, 1977 |
| 4005114 |
Distillation of propylene oxide from propylene oxidation reaction product in mixture with a phosphoric acid ester |
Jan. 25, 1977 |
| 3957830 |
Manufacture of succinic anhydride |
May. 18, 1976 |
| 3951755 |
Process for preparing technically pure acetic acid by extractive distillation |
Apr. 20, 1976 |
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