Patent
Heterogeneous catalyst process
Dixie Ely Goins,Silas W. Holmes,Edward A. Burt +2 more
- 27 May 1986
6
TL;DR: In this article, a process using heterogeneous resin-bonded aluminum phenoxide catalyst to alkylate phenols, the catalyst per se, and a process for making the catalyst is described.
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Abstract: A process using heterogeneous resin-bonded aluminum phenoxide catalyst to alkylate phenols, the catalyst per se, and a process for making the catalyst. The inventive alkylation process uses ortho-tert-butylphenoxide bonded to a phenolformaldehyde condensation resin heterogeneous catalyst to prepare 2,6-di-tert-butylphenol from isobutylene and ortho-tert-butylphenol.
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Citations
Patent
Temperature activated catalysts for liquid polymer cures
Keith W. Scott,Bryan G. Willoughby +1 more
- 12 Dec 1988
TL;DR: A temperature-activated catalyst for polyurethane or liquid polymer cures comprising the catalyst supported on, eg mounted on or bound into, a polymer which is incompatible with, viz insoluble in, the reacting polymer phase as mentioned in this paper.
16
Patent
Alkoxylation using heterogeneous calcium catalysts and products therefrom
Stephen Wayne King,Robert J. Knopf +1 more
- 12 Jun 1989
TL;DR: In this article, the use of heterogeneous (organic polymer-supported) calcium-containing catalysts and the use thereof in the preparation of alkoxylation products was discussed, i.e., condensation reaction products of alkylene oxides and organic compounds having at least one active hydrogen.
8
Patent
Process for the production of 2,6-di-tert-butylphenol
Friedrich-Wilhelm Dr Kuepper,Wolfgang H.E. Dr. Müller,Alfred Dr. Oberholz +2 more
- 11 Dec 1990
TL;DR: In this paper, the reaction is performed in the presence of diluents such as liquid saturated aliphatic or cycloaliphatic hydrocarbons, C 5 -C 16 alkenes of formula R 1 -CH═CH 2 or R 2 -CH--R 3, C 5 to C 12 cycloalkenes, which contain no branching on the C═C-bond, excess isobutene or mixtures thereof, at temperatures of 0° C. to 80° C., pressures of 0.1 to 11 bars and catalyst amounts of
3
Patent
Process for preparing 2,6-di-tert.butylphenol
Friedrich-Wilhelm Dr Kuepper,Wolfgang H.E. Dr. Müller,Alfred Dr. Oberholz +2 more
- 17 Oct 1990
TL;DR: In this article, an improved, environmentally safe DTBP was developed, which does not have the disadvantages mentioned and moreover produces good yields, starting from 2-TBP, the reaction with isobutene being carried out in the liquid phase, catalysed by aluminium tris-(2-tert.-butylphenolate), in the presence of fairly large amounts of saturated (cyclo)aliphatic hydrocarbons which are liquid under the reaction conditions and/or C5-C16-alkenes of the formulae R1-CH=CH2
1
Patent
Heterogeneously catalyzed reactive distillation in the suspension mode
Christian Miller,Gerd Kaibel,Hardo Dr. Siegel +2 more
- 16 Jul 2003
TL;DR: In this paper, the authors describe a process for carrying out a reactive distillation in the presence of a heterogeneous catalyst which is suspended as a disperse phase in the liquid, wherein part of the catalyst-containing suspension is continuously discharged from the column and is treated in a work-up stage and at least part of a workup catalyst is returned to the column.
References
Patent
Preparation of ortho-alkylated phenols
Sorge Bernardus J Van
- 12 May 1971
TL;DR: Ortho-alkylated phenols are prepared by reacting a phenol unsubstituted in at least one ortho position with an alcohol in the presence of a catalyst consisting of a mixture of magnesium oxide and manganese sulfate.
62
Patent
Process for continuous alkylation of arylhydroxides using ion exchange resins
Stephen Kaufman,Richard E Nicolson +1 more
- 18 Apr 1966
29
Patent
Insoluble polymers having functional groups containing chemically bonded Group VIII metal
Werner O. Haag,Darrell Duayne Whitehurst +1 more
- 19 Jan 1971
TL;DR: In this article, a process for the production of oxygenated compounds, more specifically aldehydes and alcohols, by reacting an olefin with hydrogen and carbon monoxide in the presence of, as a catalyst, an insoluble polymer containing a functional group, which may be an amine, thiol, phosphine, or arsine group, having chemically bonded to a metal of Group VIII of the Periodic Table.
29
Patent
Metal-containing polymers
W Leonard
- 22 Mar 1971
TL;DR: In this article, the authors describe a POROUS METAL-ION-CHAIN-BRIDged POLYMERIC product with surface area of at least 5 M.2/G.
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