A method of preparing a compound of formula (IV)

##STR00001##

where R.sub.1 is alkyl of 1 to 4 carbon atoms, comprises reacting cyclohexene with hydrogen peroxide and an alcohol R.sub.1OH in the presence of a catalyst comprising a zeolite of framework structure MWW, wherein the framework of the zeolite comprises silicon, titanium, boron, oxygen and hydrogen.

A method of preparing a compound of formula (IV)

##STR00001##

where R.sub.1 is alkyl of 1 to 4 carbon atoms, comprises reacting cyclohexene with hydrogen peroxide and an alcohol R.sub.1OH in the presence of a catalyst comprising a zeolite of framework structure MWW, wherein the framework of the zeolite comprises silicon, titanium, boron, oxygen and hydrogen.

A method of preparing 2-alkoxycyclohexanol, a mixture comprising 2-alkoxycyclohexanol obtained via said method, and the use of said mixture for preparing 4-hydroxy-3-alkoxy-benzaldehyde.

A method of preparing 2-alkoxycyclohexanol, a mixture comprising 2-alkoxycyclohexanol obtained via said method, and the use of said mixture for preparing 4-hydroxy-3-alkoxy-benzaldehyde.

A method of preparing 2-alkoxycyclohexanol, a mixture comprising 2-alkoxycyclohexanol obtained via said method, and the use of said mixture for preparing 4-hydroxy-3-alkoxy-benzaldehyde.

According to a least one feature of the present disclosure, a method includes the steps: (a) providing a metallosilicate catalyst that has been used to catalyze a chemical reaction; and (b) heating the metallosilicate catalyst to a temperature from 200° C. to 425° C. for a period of 0.5 hours to 5 hours.

According to a least one feature of the present disclosure, a method includes the steps: (a) providing a metallosilicate catalyst that has been used to catalyze a chemical reaction; and (b) heating the metallosilicate catalyst to a temperature from 200° C. to 425° C. for a period of 0.5 hours to 5 hours.

The invention relates to a new industrial process for manufacturing of perfluoro(methylvinylether) (PFMVE), and of 2-fluoro-1,2-dichloro-trifluoro-methoxyethylene (FCTFE), involving reactions in liquid phase and performing reactions in a microreactor. The invention also relates to a new industrial process for manufacturing of perfluoro(methyl vinyl ether) (PFMVE) by fluorination, i.e., perfluorination, of 2-fluoro-1,2-dichloro-trifluoromethoxy-ethylene (FCTFE) with HF (hydrogen fluoride) in the presence of a Lewis acid catalyst, again performing the reaction in liquid phase, and preferably in a microreactor.

The invention relates to a new industrial process for manufacturing of perfluoro(methylvinylether) (PFMVE), and of 2-fluoro-1,2-dichloro-trifluoro-methoxyethylene (FCTFE), involving reactions in liquid phase and performing reactions in a microreactor. The invention also relates to a new industrial process for manufacturing of perfluoro(methyl vinyl ether) (PFMVE) by fluorination, i.e., perfluorination, of 2-fluoro-1,2-dichloro-trifluoromethoxy-ethylene (FCTFE) with HF (hydrogen fluoride) in the presence of a Lewis acid catalyst, again performing the reaction in liquid phase, and preferably in a microreactor.

A process for the selective dimerization and etherification of isoolefins. The process including feeding a mixed C5 stream to a selective hydrogenation unit to convert dienes to olefins and isoolefins, producing a hydrogenated effluent stream. The hydrogenated effluent stream is fed to a first fixed bed reactor, producing a first reactor effluent. The first reactor effluent is fed to a catalytic distillation reactor system, producing a first overheads including unreacted olefins, isoolefins, oxygenate, and one or more C5 ethers and a first bottoms including dimers of the isoolefins, any produced trimers of the isoolefins, and heavy oxygenates. The first overheads is fed to a second fixed bed reactor, producing a second reactor effluent including dimers of the isoolefins, unreacted C5s, and unreacted oxygenates. The first bottoms stream and the second reactor effluent are combined and fed to a product splitter, producing a second overheads stream including unreacted C5 olefins, isoolefins, and oxygenates and a second bottoms stream including C10+ hydrocarbons.