Showing papers on "2,6-Xylenol published in 1980"
Patent•
28 Jan 1980TL;DR: In this article, phenol is methylated over an alumina catalyst using methanol, and the reaction product therefrom is combined with additional methenol over a promoted magnesium oxide catalyst.
Abstract: Phenol is methylated over an alumina catalyst using methanol, and the reaction product therefrom is combined with additional methanol over a promoted magnesium oxide catalyst. Major reaction products are ortho-cresol, 2,6-xylenol and 2,3,6-trimethylphenol. The promoted magnesium oxide catalyst contains metal promoters selected from the group consisting of titanium, chromium, and uranium together with sulfate ions.
14 citations
Patent•
04 Apr 1980TL;DR: In this article, a process for preparing 2,6-xylenol in high selectivity and a catalyst composition useful therein are disclosed. The process comprises reacting phenol, o-cresol or mixtures thereof with methanol in presence of water, hydrogen and a catalyzer consisting essentially of Fe 2 O 3, SnO 2, Cr 2 O3, and K 2 O.
Abstract: A process for preparing 2,6-xylenol in high selectivity and a catalyst composition useful therein are disclosed. The process comprises reacting phenol, o-cresol or mixtures thereof with methanol in presence of water, hydrogen and a catalyst consisting essentially of Fe 2 O 3 , SnO 2 , Cr 2 O 3 , and K 2 O.
7 citations
Patent•
28 Jan 1980TL;DR: In this paper, 2,6-xylenol was mixed with meta-para-cresol and methanol in a contact with a titanium/SO4 /magnesium oxide catalyst to yield a product stream which can be readily distilled to give 2, 6-xyenol in high purity.
Abstract: 2,6-xylenol admixed with meta,para-cresol is reacted with methanol in a contact with a titanium/SO4 /magnesium oxide catalyst to yield a product stream which can be readily distilled to give 2,6-xylenol in high purity. The particular catalyst used allows low loss of 2,6-xylenol during the reactions and low amounts of side products obtained.
4 citations
Patent•
13 Oct 1980
TL;DR: In this paper, phenol is methylated over an alumina catalyst using methanol, and the reaction product therefrom is combined with additional methenol over a promoted magnesium oxide catalyst.
Abstract: Phenol is methylated over an alumina catalyst using methanol, and the reaction product therefrom is combined with additional methanol over a promoted magnesium oxide catalyst. Major reaction products are ortho-cresol, 2,6-xylenol and 2,3,6-trimethylphenol. The promoted magnesium oxide catalyst contains metal promoters selected from the group consisting of titanium, chromium, and uranium together with sulfate ions.
2 citations
Patent•
14 Oct 1980
TL;DR: In this paper, 2,6-xylenol was mixed with meta, para-cresol and methanol in a contact with a titanium/S04/magnesium oxide catalyst.
Abstract: 2,6-xylenol admixed with meta, para-cresol is reacted with methanol in a contact with a titanium/S04/magnesium oxide catalyst to yield a product stream which can be readily distilled to give 2,6-xylenol in high purity. The particular catalyst used allows low loss of 2,6-xylenol during the reactions and low amounts of side products obtained.