摘要:
The present invention provides a process for producing a (poly)alkylene glycol monoalkyl ether with high selectivity and high yield. In this process, the (poly)alkylene glycol monoalkyl ether is produced by reacting an olefin and a (poly)alkylene glycol in the presence of a catalyst, wherein: 1) a crystalline metallositicate is used as the catalyst, and at least a portion of the used catalyst is regenerated, and the regenerated catalyst is recycled as the catalyst for the reaction; or 2) the reaction between the olefin and the (poly)alkylene glycol is carried out in the presence of either or both of a (poly)alkylene glycol dialkyl ether and an alcohol.
摘要:
A higher secondary alcohol alkoxylate compound composition represented by the general formula (1): [wherein R 1 and R 2 represent an alkyl group provided that the total number of carbon atoms of R 1 and R 2 is in the range of 7 to 29 and the number of carbon atom of R 2 is not less than that of R 1 (the number of carbon atom of R 1 ≤ the number of carbon atom of R 2 ), A represents a lower alkylene group, n represents a numeral in the range of 1 to 50 on the average; providing that when n is not less than 2, the number of species of oxyalkylene group represented by AO may be either one or two or more, and that when the oxyalkyl groups have two or more species, all the oxyalkylene groups are present in the average of n, and B represents a hydrogen atom or SO 3 M (wherein M represents an alkali metal atom, an alkaline earth metal atom, an ammonium group or a substituted ammonium group)], wherein the composition comprises 30 to 90 mol% of the higher secondary alcohol alkoxylate compound (X) having a methyl group for R 1 and 70 to 10 mol% of the higher secondary alcohol alkoxylate compound (Y) having an alkyl group of 2 or more carbon atoms for R 1 , a method for the production thereof, and a detergent and an emulsifier using the composition.
摘要:
A higher secondary alcohol alkoxylate compound composition represented by the general formula (1): [wherein R 1 and R 2 represent an alkyl group provided that the total number of carbon atoms of R 1 and R 2 is in the range of 7 to 29 and the number of carbon atom of R 2 is not less than that of R 1 (the number of carbon atom of R 1 ≤ the number of carbon atom of R 2 ), A represents a lower alkylene group, n represents a numeral in the range of 1 to 50 on the average; providing that when n is not less than 2, the number of species of oxyalkylene group represented by AO may be either one or two or more, and that when the oxyalkyl groups have two or more species, all the oxyalkylene groups are present in the average of n, and B represents a hydrogen atom or SO 3 M (wherein M represents an alkali metal atom, an alkaline earth metal atom, an ammonium group or a substituted ammonium group)], wherein the composition comprises 30 to 90 mol% of the higher secondary alcohol alkoxylate compound (X) having a methyl group for R 1 and 70 to 10 mol% of the higher secondary alcohol alkoxylate compound (Y) having an alkyl group of 2 or more carbon atoms for R 1 , a method for the production thereof, and a detergent and an emulsifier using the composition.
摘要:
A method for the production of a 1,3-dioxolane represented by the general formula III: wherein R¹ is hydrogen atom or an alkyl group of 1 to 5 carbon atoms and R² is hydrogen atom or an alkyl group of 1 to 2 carbon atoms or a phenyl group, which method comprises reacting an aldehyde represented by the general formula I wherein R¹ has the same meaning as defined above, with an alkylene oxide represented by the general formula II: wherein R² has the same meaning as defined above, in an alkylene glycol solvent corresponding to said alkylene oxide in the presence of at least one catalyst selected from the group consisting of bromides of alkali metals, iodides of alkali metals, bromides of alkaline earth metals, and iodides of alkaline earth metals.
摘要:
The present invention provides a process for producing a (poly)alkylene glycol monoalkyl ether with high selectivity and high yield. In this process, the (poly)alkylene glycol monoalkyl ether is produced by reacting an olefin and a (poly)alkylene glycol in the presence of a catalyst, wherein: 1) a crystalline metallositicate is used as the catalyst, and at least a portion of the used catalyst is regenerated, and the regenerated catalyst is recycled as the catalyst for the reaction; or 2) the reaction between the olefin and the (poly)alkylene glycol is carried out in the presence of either or both of a (poly)alkylene glycol dialkyl ether and an alcohol.
摘要:
A process for producing a (poly)alkylene glycol monoalkyl ether, which process comprises reacting at least one olefin with at least one (poly)alkylene glycol in the presence of a crystalline metallosilicate as a catalyst.
摘要:
A method for the production of a 1,3-dioxolane represented by the general formula III: wherein R¹ is hydrogen atom or an alkyl group of 1 to 5 carbon atoms and R² is hydrogen atom or an alkyl group of 1 to 2 carbon atoms or a phenyl group, which method comprises reacting an aldehyde represented by the general formula I wherein R¹ has the same meaning as defined above, with an alkylene oxide represented by the general formula II: wherein R² has the same meaning as defined above, in an alkylene glycol solvent corresponding to said alkylene oxide in the presence of at least one catalyst selected from the group consisting of bromides of alkali metals, iodides of alkali metals, bromides of alkaline earth metals, and iodides of alkaline earth metals.