The present application relates to cellulose nanocrystals and other anionic carbohydrates and methods of preparation thereof. Specifically, in certain embodiments, the cellulose nanocrystals are modified using ion exchange technology to yield thermally stable or task-specific, dispersible cellulose nanocrystals.

The present invention concerns an extracorporeal circuit for removing CO.sub.2 from blood comprising a blood withdrawal line for withdrawing blood from the patient, a filtration unit for producing plasma water and a line for returning the blood to the patient, defining a main circuit; the extracorporeal circuit further comprises a decarbonating group comprising a secondary circuit for the recirculation of plasma water, means for removing a fraction of said plasma water, a CO.sub.2 exchanger, a cationic resin charged with H+ ions set upstream of the CO.sub.2 exchanger and adapted to generate acid plasma water, means for the infusion of the acid plasma water upstream of the CO.sub.2 exchanger and means for the infusion of ions in a solution downstream of the CO.sub.2 exchanger.

Doxorubicin is extracted from blood using anionic material, such as a resin comprising sulfonated polystyrene divinylbenzene beads, and polyethersulfone membrane, or both. After exposing the resin and/or membrane to blood in order to remove doxorubicin therefrom, the doxorubicin maybe extracted from the resin and/or membrane by exposing the material to an extraction solution, sonicating the extraction solution to enhance release of the doxorubicin, and repeating the exposure and sonication in order to remove substantially all of doxorubicin from the resin.

Doxorubicin is extracted from blood using anionic material, such as a resin comprising sulfonated polystyrene divinylbenzene beads, and polyethersulfone membrane, or both. After exposing the resin and/or membrane to blood in order to remove doxorubicin therefrom, the doxorubicin maybe extracted from the resin and/or membrane by exposing the material to an extraction solution, sonicating the extraction solution to enhance release of the doxorubicin, and repeating the exposure and sonication in order to remove substantially all of doxorubicin from the resin.

Methods of stabilizing virgin ion exchange resin material are provided. The methods include rinsing virgin ion exchange resin material with deoxygenated water, introducing the rinsed virgin ion exchange resin material into a liquid impermeable compartment of a gas impermeable vessel and hermetically sealing the vessel. The methods include rinsing virgin ion exchange resin material with deoxygenated water, introducing the rinsed virgin ion exchange resin material into a gas impermeable vessel, introducing an oxygen scavenging material into the gas impermeable vessel, and hermetically sealing the vessel. A method of facilitating water treatment in a site in need thereof by providing rinsed virgin ion exchange resin material in deoxygenated water positioned in a liquid impermeable compartment of a gas impermeable vessel is also provided. A vessel containing deoxygenated water and virgin ion exchange resin material and an oxygen scavenging material is also provided.

Methods of stabilizing virgin ion exchange resin material are provided. The methods include rinsing virgin ion exchange resin material with deoxygenated water, introducing the rinsed virgin ion exchange resin material into a liquid impermeable compartment of a gas impermeable vessel and hermetically sealing the vessel. The methods include rinsing virgin ion exchange resin material with deoxygenated water, introducing the rinsed virgin ion exchange resin material into a gas impermeable vessel, introducing an oxygen scavenging material into the gas impermeable vessel, and hermetically sealing the vessel. A method of facilitating water treatment in a site in need thereof by providing rinsed virgin ion exchange resin material in deoxygenated water positioned in a liquid impermeable compartment of a gas impermeable vessel is also provided. A vessel containing deoxygenated water and virgin ion exchange resin material and an oxygen scavenging material is also provided.

Provided is a method for producing acetic acid that is capable of greatly improving the life of a silver-substituted ion exchange resin (IER) for removing organic iodine compounds in acetic acid.

With the method for producing acetic acid according to the present invention, in a carbonylation process of a methanol method, an acetic acid distillation step has at least one distillation step of carrying out the purification of an acetic acid stream under conditions of a column bottom temperature of a distillation column of less than 175° C., a nickel base alloy or zirconium is used as a material of the distillation column in the distillation step, and as metal ion concentrations in a charging mixture of the distillation column in the distillation step, an iron ion concentration is less than 10,000 ppb by mass, a chromium ion concentration is less than 5,000 ppb by mass, a nickel ion concentration is less than 3,000 ppb by mass, and a molybdenum ion concentration is less than 2,000 ppb by mass.

Provided is a method for producing acetic acid that is capable of greatly improving the life of a silver-substituted ion exchange resin (IER) for removing organic iodine compounds in acetic acid.

With the method for producing acetic acid according to the present invention, in a carbonylation process of a methanol method, an acetic acid distillation step has at least one distillation step of carrying out the purification of an acetic acid stream under conditions of a column bottom temperature of a distillation column of less than 175° C., a nickel base alloy or zirconium is used as a material of the distillation column in the distillation step, and as metal ion concentrations in a charging mixture of the distillation column in the distillation step, an iron ion concentration is less than 10,000 ppb by mass, a chromium ion concentration is less than 5,000 ppb by mass, a nickel ion concentration is less than 3,000 ppb by mass, and a molybdenum ion concentration is less than 2,000 ppb by mass.

The present application relates to cellulose nanocrystals and other anionic carbohydrates and methods of preparation thereof. Specifically, in certain embodiments, the cellulose nanocrystals are modified using ion exchange technology to yield thermally stable or task-specific, dispersible cellulose nanocrystals.

The present application relates to cellulose nanocrystals and other anionic carbohydrates and methods of preparation thereof. Specifically, in certain embodiments, the cellulose nanocrystals are modified using ion exchange technology to yield thermally stable or task-specific, dispersible cellulose nanocrystals.