C11D7/02

Rapid surface disinfection method and apparatus

A device for rapidly sanitizing a surface is described. The device has an enclosure having an opening adapted to insert a surface, and an interior; a liquid nitric oxide solution applicator; and an absorbent material. The liquid nitric oxide solution applicator is in fluid communication with the interior of the enclosure and is adapted to apply liquid nitric oxide solution onto the surface when the surface is positioned within the enclosure. A method of rapidly sanitizing a surface is described. The devices and methods provided herein may be implemented to sanitize the surface of any body part or item that may be placed within the device. An infectious agent on the surface may be killed; i.e., the surface is disinfected. Non-limiting applications of the devices and methods include preventing nosocomial infections or food contamination, sanitizing household items, and implementing sanitizing procedures to comply with FDA Good Manufacturing Practices.

Rapid surface disinfection method and apparatus

A device for rapidly sanitizing a surface is described. The device has an enclosure having an opening adapted to insert a surface, and an interior; a liquid nitric oxide solution applicator; and an absorbent material. The liquid nitric oxide solution applicator is in fluid communication with the interior of the enclosure and is adapted to apply liquid nitric oxide solution onto the surface when the surface is positioned within the enclosure. A method of rapidly sanitizing a surface is described. The devices and methods provided herein may be implemented to sanitize the surface of any body part or item that may be placed within the device. An infectious agent on the surface may be killed; i.e., the surface is disinfected. Non-limiting applications of the devices and methods include preventing nosocomial infections or food contamination, sanitizing household items, and implementing sanitizing procedures to comply with FDA Good Manufacturing Practices.

Cleaning method

The invention provides a method for the cleaning of a soiled substrate, the method comprising treating the substrate with a non-polymeric solid particulate cleaning material and wash water, the treatment being carried out in an apparatus comprising a drum comprising perforated side walls and having a capacity of between 5 and 50 liters for each kg of fabric in the washload, wherein the solid particulate cleaning material comprises a multiplicity of non-polymeric particles at a particle to fabric addition level of 0.1:1-10:1 by mass, each of the particles being substantially cylindrical or spherical in shape, and wherein the drum comprising perforated side walls is rotated at a speed which generates G forces in the range of from 0.05 to 900 G. The non-polymeric particles may comprise particles of glass, silica, stone, wood, or any of a variety of metals or ceramic materials. Preferably the solid particulate cleaning material additionally comprises a multiplicity of polymeric particles each of which is substantially cylindrical or spherical in shape. Preferably, at least one detergent is employed in the cleaning process. The invention provides optimum cleaning performance as a result of improved mechanical interaction between substrate and cleaning media and is preferably used for the cleaning of textile fabrics. The method allows for significant reductions in the consumption of detergents, water and energy when compared with the conventional wet cleaning of textile fabrics, and also facilitates reduced washing-related textile fabric damage. The invention also envisages a cleaning composition comprising a solid particulate cleaning composition and at least one additional cleaning agent.

Cleaning method

The invention provides a method for the cleaning of a soiled substrate, the method comprising treating the substrate with a non-polymeric solid particulate cleaning material and wash water, the treatment being carried out in an apparatus comprising a drum comprising perforated side walls and having a capacity of between 5 and 50 liters for each kg of fabric in the washload, wherein the solid particulate cleaning material comprises a multiplicity of non-polymeric particles at a particle to fabric addition level of 0.1:1-10:1 by mass, each of the particles being substantially cylindrical or spherical in shape, and wherein the drum comprising perforated side walls is rotated at a speed which generates G forces in the range of from 0.05 to 900 G. The non-polymeric particles may comprise particles of glass, silica, stone, wood, or any of a variety of metals or ceramic materials. Preferably the solid particulate cleaning material additionally comprises a multiplicity of polymeric particles each of which is substantially cylindrical or spherical in shape. Preferably, at least one detergent is employed in the cleaning process. The invention provides optimum cleaning performance as a result of improved mechanical interaction between substrate and cleaning media and is preferably used for the cleaning of textile fabrics. The method allows for significant reductions in the consumption of detergents, water and energy when compared with the conventional wet cleaning of textile fabrics, and also facilitates reduced washing-related textile fabric damage. The invention also envisages a cleaning composition comprising a solid particulate cleaning composition and at least one additional cleaning agent.

Effervescent cleaning composition comprising diamond powder having Dv50 of less than 40micrometer
09816060 · 2017-11-14 · ·

A composition which effervesces when added to water, comprises diamond particles with a median equivalent volumetric diameter (Dv50) of less than 40 μm. The compositions are useful as cleaning compositions, particularly for cleaning diamonds.

Dry Detergent For Cleaning Gas Turbine Engine Components

The present disclosure is directed to a method for in-situ (e.g. on-wing) cleaning one or more components of a gas turbine engine. The method includes injecting a dry detergent into the gas turbine engine. Further, the dry detergent contains a plurality of detergent particles having varying particle sizes. More specifically, the plurality of detergent particles includes a first set of particles having a median particle diameter within a first micron range and a second set of particles having a median particle diameter within a second micron range. Further, a median of the second micron range is larger than a median of the first micron range. In addition, the method includes circulating the dry detergent through at least a portion of the gas turbine engine so as to clean the one or more components thereof.

Dry Detergent For Cleaning Gas Turbine Engine Components

The present disclosure is directed to a method for in-situ (e.g. on-wing) cleaning one or more components of a gas turbine engine. The method includes injecting a dry detergent into the gas turbine engine. Further, the dry detergent contains a plurality of detergent particles having varying particle sizes. More specifically, the plurality of detergent particles includes a first set of particles having a median particle diameter within a first micron range and a second set of particles having a median particle diameter within a second micron range. Further, a median of the second micron range is larger than a median of the first micron range. In addition, the method includes circulating the dry detergent through at least a portion of the gas turbine engine so as to clean the one or more components thereof.

Process for making solid methylglycine diacetate (MGDA) alkali metal salt, and solid particles

Process for making solid methylglycine diacetate (MGDA) alkali metal salt (a), said process comprising the steps of (A) providing a 35 to 60% by weight aqueous solution of said MGDA salt having a temperature in the range of from 50 to 90° C., (B) adding 0.01 to 2% by weight of a particulate solid with a pore volume in the range of from 0.25 to 0.75 cm.sup.3/g, determined by nitrogen adsorption in accordance with 66134:1998-02 (b), the percentage referring to the content of (a), (C) crystallizing (a), (D) removing said crystalline (a) from the mother liquor.

Process for making solid methylglycine diacetate (MGDA) alkali metal salt, and solid particles

Process for making solid methylglycine diacetate (MGDA) alkali metal salt (a), said process comprising the steps of (A) providing a 35 to 60% by weight aqueous solution of said MGDA salt having a temperature in the range of from 50 to 90° C., (B) adding 0.01 to 2% by weight of a particulate solid with a pore volume in the range of from 0.25 to 0.75 cm.sup.3/g, determined by nitrogen adsorption in accordance with 66134:1998-02 (b), the percentage referring to the content of (a), (C) crystallizing (a), (D) removing said crystalline (a) from the mother liquor.

Composition, composition reservoir, and method for producing composition
11192786 · 2021-12-07 · ·

A composition including hydrogen peroxide is provided, which can be used for semiconductor device manufacturing and which exhibits an excellent storage stability and has a reduced effect of defects on a semiconductor substrate. Further, a method is provided for producing the composition including hydrogen peroxide, and a composition reservoir for storing the composition. The composition includes hydrogen peroxide, an acid, and an Fe component, in which the content of the Fe component is 10.sup.−5 to 10.sup.2 in terms of mass ratio with respect to the content of the acid.