A composition that absorbs oxygen and emits carbon dioxide in response to absorbing oxygen including ascorbic acid, an organic acid, a catalyst that promotes oxidation of the organic acid and emission of carbon dioxide and a soluble transition metal salt characterized by multiple oxidation states.

A composition that absorbs oxygen and emits carbon dioxide in response to absorbing oxygen including ascorbic acid, an organic acid, a catalyst that promotes oxidation of the organic acid and emission of carbon dioxide and a soluble transition metal salt characterized by multiple oxidation states.

The invention provides a process for preparing farnesylamines by reacting -farnesene with one or more amines in the presence of a transition metal catalyst from transition group 10 at a temperature in the range from 60 to 150 C.

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The invention provides a process for preparing farnesylamines by reacting -farnesene with one or more amines in the presence of a transition metal catalyst from transition group 10 at a temperature in the range from 60 to 150 C.

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This application is in the field of technologies for desulfurization and demercaptanization of raw gaseous hydrocarbons (including natural gas, tail gas, technological gas, etc, including gaseous media). It can be used for simultaneous dehydration and desulfurization/demercaptanization of any kind of raw gaseous hydrocarbons.

Benzene and/or monochlorobenzene were chlorinated with molecular chlorine to obtain paradichlorobenzene with high selectivity. A batch reactor was used for this purpose, with a highly selective catalytic system consisting of SbCl.sub.3 and a phenothiazine derivative. The entire process was improved with the introduction of a new catalytic system recovery method, which was based on returning the mother liquid containing the catalytic system to the process after prior separation from the fresh post-reaction mixture by distillation of unreacted raw materials under reduced pressure and recycling them, as well as crystallization of paradichlorobenzene from the depleted liquid after vacuum distillation.

Benzene and/or monochlorobenzene were chlorinated with molecular chlorine to obtain paradichlorobenzene with high selectivity. A batch reactor was used for this purpose, with a highly selective catalytic system consisting of SbCl.sub.3 and a phenothiazine derivative. The entire process was improved with the introduction of a new catalytic system recovery method, which was based on returning the mother liquid containing the catalytic system to the process after prior separation from the fresh post-reaction mixture by distillation of unreacted raw materials under reduced pressure and recycling them, as well as crystallization of paradichlorobenzene from the depleted liquid after vacuum distillation.

The present invention relates to the use of haloapatites as catalysts of the dehydration reaction of -hydroxylated carboxylic acids or acid esters, in particular of lactic acid or of methyl lactate, and also to a process for producing unsaturated carboxylic acids or acid esters, in particular acrylic acid or methyl acrylate, in the gas phase in a stainless steel reactor, in the presence of such a catalyst.

A system for inhibiting microbial growth by photocatalytic oxidation includes an intake having a first inlet port and a first outlet port, an air mover having a second inlet port and a second outlet port, and a filter having a third inlet port. An ultraviolet light source is disposed within the filter to promote photocatalytic oxidation of microbiological particles or other microbial growth, bioaerosols, volatile organic compounds or other particulate matter passing through the filter. The filter includes a filter body, a filter channel disposed within the filter body and having an outer surface and an inner surface. A filter media is disposed within the filter channel. A plurality of inlet ports is distributed over the inner surface and a plurality of outlet ports is distributed over the outer surface.

A system for inhibiting microbial growth by photocatalytic oxidation includes an intake having a first inlet port and a first outlet port, an air mover having a second inlet port and a second outlet port, and a filter having a third inlet port. An ultraviolet light source is disposed within the filter to promote photocatalytic oxidation of microbiological particles or other microbial growth, bioaerosols, volatile organic compounds or other particulate matter passing through the filter. The filter includes a filter body, a filter channel disposed within the filter body and having an outer surface and an inner surface. A filter media is disposed within the filter channel. A plurality of inlet ports is distributed over the inner surface and a plurality of outlet ports is distributed over the outer surface.