Disclosed is a method of recovering a metal catalyst during production of an adipic acid from glucose. The method of recovering and the metal catalyst may provide economic feasibility of the adipic acid production process.

Disclosed is a method of recovering a metal catalyst during production of an adipic acid from glucose. The method of recovering and the metal catalyst may provide economic feasibility of the adipic acid production process.

The present disclosure provides a process for treatment a spent ionic liquid, comprising: mixing the spent ionic liquid with a first fluid medium and water to obtain slurry comprising a solid fraction and a liquid fraction; separating the solid fraction from slurry to obtain a filtrate and a residue comprising hydrated ionic solids; followed by drying the residue comprising the hydrated ionic solids at a temperature in the range of 60 C. to 120 C. to obtain treated ionic solids; and evaporating the filtrate to recover the fluid medium. The process of the present disclosure further comprises a step of contacting the treated ionic solids with at least one second fluid medium to separate an active ionic liquid.

The present disclosure provides a process for treatment a spent ionic liquid, comprising: mixing the spent ionic liquid with a first fluid medium and water to obtain slurry comprising a solid fraction and a liquid fraction; separating the solid fraction from slurry to obtain a filtrate and a residue comprising hydrated ionic solids; followed by drying the residue comprising the hydrated ionic solids at a temperature in the range of 60 C. to 120 C. to obtain treated ionic solids; and evaporating the filtrate to recover the fluid medium. The process of the present disclosure further comprises a step of contacting the treated ionic solids with at least one second fluid medium to separate an active ionic liquid.

Methods, systems, and compositions related to the recycling and/or recovery of activating materials from activated aluminum are disclosed. In one embodiment, an aqueous solution's composition may be controlled to maintain aluminum ions dissolved in solution during reaction of an activated aluminum. In another embodiment, aluminum hydroxide containing the activating materials may be dissolved into an aqueous solution to isolate the activating materials.

Methods, systems, and compositions related to the recycling and/or recovery of activating materials from activated aluminum are disclosed. In one embodiment, an aqueous solution's composition may be controlled to maintain aluminum ions dissolved in solution during reaction of an activated aluminum. In another embodiment, aluminum hydroxide containing the activating materials may be dissolved into an aqueous solution to isolate the activating materials.

Apparatus and associated methods relate to restoring a catalytic converter to effective condition based on applying a vacuum to a first converter end, supplying restoration material to a second converter end to be atomized by the vacuum, and dispersing the atomized restoration material onto the catalytic converter substrate. In an illustrative example, the restoration material may be supplied through an atomization and induction fitting coupled with an open oxygen sensor port. Various embodiments may enrich the existing catalyst materials of a worn catalyst, with new catalyst materials which effectively restores original catalytic converter performance, in-place on a vehicle. In some embodiments, the vacuum source may be a vacuum cleaner. Various embodiments may include applying vacuum or vehicle operation for a time period effective to recondition the catalytic converter. Various examples may advantageously provide reduced cost converter restoration and improve access to functioning converters. Some embodiments may improve environmental quality by reducing the waste of replaced catalytic converters. Some implementations may be designed for a single use.

Apparatus and associated methods relate to restoring a catalytic converter to effective condition based on applying a vacuum to a first converter end, supplying restoration material to a second converter end to be atomized by the vacuum, and dispersing the atomized restoration material onto the catalytic converter substrate. In an illustrative example, the restoration material may be supplied through an atomization and induction fitting coupled with an open oxygen sensor port. Various embodiments may enrich the existing catalyst materials of a worn catalyst, with new catalyst materials which effectively restores original catalytic converter performance, in-place on a vehicle. In some embodiments, the vacuum source may be a vacuum cleaner. Various embodiments may include applying vacuum or vehicle operation for a time period effective to recondition the catalytic converter. Various examples may advantageously provide reduced cost converter restoration and improve access to functioning converters. Some embodiments may improve environmental quality by reducing the waste of replaced catalytic converters. Some implementations may be designed for a single use.

The present invention relates to preparation of catalyst for production of olefinic hydrocarbons by dehydrogenation of their corresponding paraffins, particularly propylene from propane, comprising a metal oxide or combination of metal oxides utilizing spent catalyst from Fluid Catalytic Cracking (FCC)/Resid Fluid Catalytic Cracking (RFCC) processes. The metal oxides are possibly from transition metal group, particularly from groups VB, VIB, VIII, and Lanthanide series, and at least one metal from alkali group. The catalyst support used is spent catalyst or modified spent catalyst or combination thereof. The said catalyst can be used for both non-oxidative Propane Dehydrogenation (PDH) and Oxidative Propane Dehydrogenation (OPDH) process in the presence of CO.sub.2.

The present invention relates to preparation of catalyst for production of olefinic hydrocarbons by dehydrogenation of their corresponding paraffins, particularly propylene from propane, comprising a metal oxide or combination of metal oxides utilizing spent catalyst from Fluid Catalytic Cracking (FCC)/Resid Fluid Catalytic Cracking (RFCC) processes. The metal oxides are possibly from transition metal group, particularly from groups VB, VIB, VIII, and Lanthanide series, and at least one metal from alkali group. The catalyst support used is spent catalyst or modified spent catalyst or combination thereof. The said catalyst can be used for both non-oxidative Propane Dehydrogenation (PDH) and Oxidative Propane Dehydrogenation (OPDH) process in the presence of CO.sub.2.