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| Number | Title | Issue Date |
| 4193770 | Preparation of gasoline containing tertiaryamyl methyl ether A process for preparing, from tertiary olefin containing hydrocarbon fractions, a hydrocarbon fraction containing tertiaryamyl methyl ether, the process achieving high conversion of 2-methyl butenes to the ether by etherification with methanol after adequ... | 03/18/1980 |
| 4187384 | Preparation of mono- and poly-ethylene glycol dialkyl ethers Mono- and poly-ethylene glycol dialkyl ethers I where R1 is C1 -C4 -alkyl, R2 is C3 -C5 -alkyl and n is from 1 to 100, are prepared by reacting monoalkyl ethers II with a C3 -C5 | 02/05/1980 |
| 4182913 | Method for producing methyl tert-butyl ether and fuel composition containing the same A method for producing methyl tert-butyl ether which comprises the steps of: allowing isobutylene-containing hydrocarbon and methyl alcohol in a given molar ratio to react at a given temperature, pressure and liquid space velocity in the presence of stron... | 01/08/1980 |
| 4182914 | Process for continuously producing diisopropyl ether There is disclosed a process for continuously producing diisopropyl ether of high purity from isopropyl alcohol and propylene at a high yield, which comprises the steps of: continuously passing isopropyl alcohol and propylene at a given molar ratio throug... | 01/08/1980 |
| 4181809 | Production of tertiary-butyl methyl ether This invention provides a process for producing tertiary-butyl methyl ether which involves contacting a mixture of isobutylene and synthesis gas with a catalyst under modified methanol synthesis processing conditions.... | 01/01/1980 |
| 4175210 | Etherification process A process for converting an olefin, or a mixture of olefins, to an ether, or a mixture of ethers, which comprises reacting said olefin, or said mixture of olefins, with an alcohol in contact with silicatungstic acid.... | 11/20/1979 |
| 4161496 | Novel method of treating a charge hydrocarbon stream containing isobutene and also butadiene Isobutene is separated from a charge hydrocarbon stream, which may contain butadiene, in two stages in the first of which isobutene is present in excess and in the second of which isobutene is present in deficiency. In the first stage, a strongly acidic i... | 07/17/1979 |
| 4148695 | Preparation and recovery of ethers Methyl t-butyl ether may be recovered from etherification reaction effluent by extractive distillation in the presence of n-butanol.... | 04/10/1979 |
| 4144138 | Recovery of ethers Methyl tertiary butyl ether may be recovered from etherification reaction effluent by azeotropic distillation to recover methanol-ether azeotrope overhead which is water-washed to give pure ether raffinate plus ether-methanol bottoms, the latter being aze... | 03/13/1979 |
| 4118425 | Method for preparation of ethers Ethers, such as the methyl ether of tertiary butanol, may be typically prepared by reacting methanol and isobutene in the presence of hydrocarbon, extracting excess methanol with water, and recovering the desired ether in hydrocarbon solution for further ... | 10/03/1978 |
| 4071567 | Process for the production of methyl tert-butyl ether Methyl tert-butyl ether of high purity is prepared by reacting methanol with isobutylene in the presence of an acid ion exchange resin in two stages by feeding methanol and isobutylene mixed with other hydrocarbons to the respective members of a pair of i... | 01/31/1978 |
| 4058576 | Conversion of methanol to gasoline components A method and sequence of process steps is described for effecting the conversion of lower alcohols comprising methanol, ethanol and propanol to gasoline boiling range component arranged to significantly extract reaction heat and selectively control the re... | 11/15/1977 |
| 4042633 | Process for preparing diisopropyl ether Diisopropyl ether is prepared from isopropanol in liquid phase in contact with particular Montmorillonite clay catalysts, optionally in the presence of added propylene. The process is operated in a continuous manner by continuously feeding liquid isopropa... | 08/16/1977 |
| 4039590 | Process for the synthesis of methyl-tert-butyl ether from methanol and isobutylene in the presence of butadiene Isobutylene is separated from a stream of C4 hydrocarbons containing it and remarkable amounts of butadiene, and methyl tert-butyl ether is prepared, by feeding that stream of hydrocarbons and methanol to a reactor containing a catalyst consist... | 08/02/1977 |
| 3979461 | Process for the preparation of methyl tert-butyl ether Methyl tert-butyl ether is prepared, and a stream of hydrocarbons containing isobutylene is freed therefrom, by reacting the isobutylene with methanol in a two stage process wherein, in the first stage, a stream of hydrocarbons containing isobutylene and ... | 09/07/1976 |
| 3966586 | Method for upgrading heavy petroleum type stocks Heavy hydrocarbon feeds are dispersed in solvent ethers and product recycle fraction prior to catalytic cracking thereof with acidic compositions comprising particular crystalline zeolite catalyst composition. The solvent ethers are provided by reacting p... | 06/29/1976 |
| 3940450 | Preparation and recovery of ethers Methyl tertiary butyl ether may be recovered from etherification reaction effluent by azeotropic distillation to recover methanol-ether azeotrope overhead which latter is azeotropically distilled in the presence of n-pentane to give pure ether bottoms sub... | 02/24/1976 |
