Symbient Environmental Technologies

Canada

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B01J 23/20 - Vanadium, niobium or tantalum 2
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Found results for  patents

1.

CATALYST COMPOSITION OF MATTER FOR PRODUCTION OF PERCARBOXYLIC ACIDS

      
Application Number 18837313
Status Pending
Filing Date 2023-02-09
First Publication Date 2025-05-08
Owner SYMBIENT ENVIRONMENTAL TECHNOLOGIES (Canada)
Inventor
  • O'Keefe, William Kevin
  • Karimi, Saba

Abstract

The present disclosure provides a catalyst for the production of percarboxylic acids which includes a co-catalyst 1 being either a transition metal oxide or carbonaceous compound and a second co-catalyst 2, distinct from co-catalyst 1 and being comprised of at least one transition metal, transition metal oxide, transition metal carbide or transition metal nitride. The combination of these co-catalysts provides the necessary kinds of catalytic active sites for both the chemisorption and activation of formic acid as well as active sites for the generation of surface active oxygen species. The combination of these co-catalyst materials results in the synergistic benefits of enhancement in catalytic activity for the production of the peracid as well as improved catalyst stability.

IPC Classes  ?

  • B01J 23/648 - Vanadium, niobium or tantalum
  • B01J 21/04 - Alumina
  • B01J 23/20 - Vanadium, niobium or tantalum
  • B01J 23/30 - Tungsten
  • B01J 23/44 - Palladium
  • B01J 23/50 - Silver
  • B01J 31/08 - Ion-exchange resins
  • B01J 31/36 - Catalysts comprising hydrides, coordination complexes or organic compounds containing in addition, inorganic metal compounds not provided for in groups of vanadium, niobium or tantalum
  • B01J 35/40 - Catalysts, in general, characterised by their form or physical properties characterised by dimensions, e.g. grain size
  • B01J 35/61 - Surface area
  • C07C 409/24 - Peroxy compounds the —O—O— group being bound between a C=O group and hydrogen, i.e. peroxy acids

2.

METHOD AND APPARATUS FOR THE PRODUCTION OF PERFORMIC ACID

      
Application Number 18025773
Status Pending
Filing Date 2021-09-10
First Publication Date 2023-11-02
Owner SYMBIENT ENVIRONMENTAL TECHNOLOGIES (Canada)
Inventor O'Keefe, William Kevin

Abstract

A catalytic distillation process, which when operated under vacuum conditions, makes possible the facilitation of peroxyacid chemistry under intrinsically safe conditions with superior efficiency compared to conventional technology. In particular, the process can be used for the production of performic acid (PFA) created from the chemical reaction of formic acid and hydrogen peroxide, while contacting one or more kinds of heterogeneous catalysts, immobilized in one or more regions of the reactor (i.e. within reaction zones within the column). Aqueous hydrogen peroxide and formic acid feed streams are directed to the catalytic distillation column. The products are separated from the reactants in situ from the distillation action within the column The process is made efficient by utilizing moisture tolerant catalyst materials which facilitate the chemical conversion of the reactants operating at or near stoichiometric amount and by operating the catalytic distillation reactor at or near 100% conversion and at an optimal reflux ratio which prevents the accumulation of water in the system while maximizing external mass transfer rates, catalyst wetting efficiency and energy efficiency.

IPC Classes  ?

3.

CATALYST COMPOSITION OF MATTER FOR PRODUCTION OF PERCARBOXYLIC ACIDS

      
Application Number CA2023050170
Publication Number 2023/150880
Status In Force
Filing Date 2023-02-09
Publication Date 2023-08-17
Owner SYMBIENT ENVIRONMENTAL TECHNOLOGIES (Canada)
Inventor
  • O'Keefe, William Kevin
  • Karimi, Saba

Abstract

The present disclosure provides a catalyst for the production of percarboxylic acids which includes a co-catalyst 1 being either a transition metal oxide or carbonaceous compound and a second co-catalyst 2, distinct from co-catalyst 1 and being comprised of at least one transition metal, transition metal oxide, transition metal carbide or transition metal nitride. The combination of these co-catalysts provides the necessary kinds of catalytic active sites for both the chemisorption and activation of formic acid as well as active sites for the generation of surface active oxygen species. The combination of these co-catalyst materials results in the synergistic benefits of enhancement in catalytic activity for the production of the peracid as well as improved catalyst stability.

IPC Classes  ?

  • B01J 23/84 - Catalysts comprising metals or metal oxides or hydroxides, not provided for in group of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
  • B01J 35/10 - Solids characterised by their surface properties or porosity