WO2023224598A1 - Fluide a nano-micro particules pour nettoyer des surfaces et conduites sales et graisseuses - Google Patents

Fluide a nano-micro particules pour nettoyer des surfaces et conduites sales et graisseuses Download PDF

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Publication number
WO2023224598A1
WO2023224598A1 PCT/US2022/029489 US2022029489W WO2023224598A1 WO 2023224598 A1 WO2023224598 A1 WO 2023224598A1 US 2022029489 W US2022029489 W US 2022029489W WO 2023224598 A1 WO2023224598 A1 WO 2023224598A1
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WIPO (PCT)
Prior art keywords
oil
cleaning composition
metal
combination
metal particles
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Application number
PCT/US2022/029489
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English (en)
Inventor
Zhifeng Ren
Original Assignee
University Of Houston System
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by University Of Houston System filed Critical University Of Houston System
Priority to PCT/US2022/029489 priority Critical patent/WO2023224598A1/fr
Publication of WO2023224598A1 publication Critical patent/WO2023224598A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/22—Organic compounds
    • C11D7/40—Products in which the composition is not well defined
    • C11D7/44—Vegetable products
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D17/00—Detergent materials or soaps characterised by their shape or physical properties
    • C11D17/0004—Non aqueous liquid compositions comprising insoluble particles
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/02—Inorganic compounds
    • C11D7/04—Water-soluble compounds
    • C11D7/10—Salts
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/02—Inorganic compounds
    • C11D7/04—Water-soluble compounds
    • C11D7/10—Salts
    • C11D7/105—Nitrates; Nitrites
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/02—Inorganic compounds
    • C11D7/04—Water-soluble compounds
    • C11D7/10—Salts
    • C11D7/16—Phosphates including polyphosphates
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
    • C11D7/22—Organic compounds
    • C11D7/24—Hydrocarbons
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
    • C11D2111/10—Objects to be cleaned
    • C11D2111/14—Hard surfaces
    • C11D2111/16—Metals
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
    • C11D2111/10—Objects to be cleaned
    • C11D2111/14—Hard surfaces
    • C11D2111/18—Glass; Plastics
    • C—CHEMISTRY; METALLURGY
    • C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
    • C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
    • C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
    • C11D2111/10—Objects to be cleaned
    • C11D2111/14—Hard surfaces
    • C11D2111/24—Mineral surfaces, e.g. stones, frescoes, plasters, walls or concretes

Definitions

  • the disclosure relates generally to compositions and methods for cleaning dirty and/or greasy surfaces, cleaning carbon from surfaces, or combinations thereof, such as, without limitation, cleaning the interior or exterior surfaces of pipes, interior surfaces of drains, exposed surfaces of floors, commercial and industrial equipment, and the like. More specifically, embodiments disclosed herein are directed to cleaning compositions for cleaning such surfaces. Still more specifically, embodiments disclosed herein are directed cleaning compositions comprising metal particles and a base fluid, wherein the metal particles have a size in a range of from about 1 nanometer (nm) to about 10,000 micrometers (pm), and are dispersed in the base fluid. In addition, the cleaning compositions are configured to generate an exothermic reaction when contacted with one or more components on a surface and water to facilitate and/or enhance removal of one or more components from the surface.
  • a cleaning composition for cleaning a surface comprises metal particles and a base fluid.
  • the metal particles have a size in a range of from about 1 nanometer (nm) to about 10,000 micrometers (pm).
  • the metal particles are dispersed in the base fluid.
  • the cleaning composition is configured to generate an exothermic reaction when contacted with one or more components on the surface and water to facilitate removal of the one or more components from the surface.
  • a method of cleaning a surface comprises providing a cleaning composition.
  • the cleaning compositions comprises metal particles and a base fluid.
  • the metal particles have a size in a range of from about 1 nanometer (nm) to about 10,000 micrometers (pm).
  • the metal particles are dispersed in the base fluid.
  • the method also comprises contacting one or more components on the surface with the cleaning composition in the presence of water to generate an exothermic reaction and clean the surface.
  • the cleaned surface has fewer of the one or more compounds thereon than the surface before cleaning.
  • a method of making a cleaning composition comprises forming, from a metal, nanoparticles comprising nanometer (nm) sized particles of the metal, microparticles comprising micrometer (pm) sized particles of the metal, milliparticles comprising millimeter (mm) sized particles of the metal, or combinations thereof.
  • the method also comprises dispersing the metal nanoparticles, microparticles, and/or milliparticles in a base fluid (e.g., an oil).
  • PCBs polychlorinated biphenyls
  • a cleaning composition e.g., a sodium nanofluid
  • Figure 1 A is a photograph of a filter of the Example, before cleaning
  • Figure 1 B is a photograph of the filter of Figure 1A, after cleaning with a cleaning composition of this disclosure comprising a sodium particle fluid;
  • Figure 2A is a photograph of an engine component of the Example before cleaning, showing deposited carbon
  • Figure 2B is a photograph of the engine component of Figure 2A after cleaning and/or removal of the deposited carbon.
  • a cleaning composition of this disclosure can be made by dispersing highly reactive particles (ranging in size from nanometers to micrometers to millimeters) in a base fluid, such as an oil.
  • the base fluid can comprise a non-water or oxygen containing liquid, such as a solution, an oil, a light oil, an engine oil, a mineral oil, a vegetable oil, liquid wax, etc.
  • the particles can be made by sizing (e.g., mechanically such as by ball milling, grinding, mixing, high shear blending, or the like; and/or chemically reducing the particle size) one or more of Li, Na, K, Rb, Cs, Mg, Ca, Sr, Ba, B, Al, Ga, an oxide, sulfide, sulfate, nitride, nitrate, phosphate, or phosphide thereof, and/or a further material such as salt (e.g., Mg2SO4), that may release a large amount of gas and heat when it contacts water into the base fluid.
  • salt e.g., Mg2SO4
  • the particles, and methods described herein can generate, upon reaction with one or more components to be removed from the surface, multiple effects that promote removal of at least a portion of the one or more components from the surface.
  • effects include the generation of a large amount of hydrogen gas, heat, and optionally surfactants, induction of a basic environment, reduction in viscosity of removed component(s) (grease or oil), etc.
  • a cleaning composition of this disclosure comprises: metal particles (e.g., particles comprising a metal) and a base fluid.
  • the metal particles can have a size in a range of from about 1 nanometer (nm) to about 10,000 micrometers (pm), and are dispersed in the base fluid.
  • the cleaning composition creates an exothermic reaction when contacted with one or more components (e.g., “dirt”, such as oil, grease, soil, moss, mold, etc.) on a surface and water, to facilitate removal of the one or more components from the surface.
  • one or more components e.g., “dirt”, such as oil, grease, soil, moss, mold, etc.
  • the cleaning composition of this disclosure can comprise from about 0.01 % to about 50%, from about 0.1 % to about 10%, or from about 1 % to about 5% weight percent of the metal particles, and the balance the base fluid (e.g., hydrocarbon, oil, gas-to-liquid (GTL)).
  • the base fluid e.g., hydrocarbon, oil, gas-to-liquid (GTL)
  • the metal particles can comprise: (i) at least one metal selected from sodium (Na), potassium (K), lithium (Li), rubidium (Rb), cesium (Cs), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), aluminum (Al), gallium (Ga), or a combination thereof; (ii) an oxide, sulfide, sulfate, nitride, nitrate, phosphate, or phosphide of one or more of the metals in (i); or (iii) a combination of (i) and (ii).
  • the base fluid of the cleaning composition of this disclosure comprises a liquid that can protect the metal particles from (e.g., minimize and/or prevent) contact with water and oxygen until use of the cleaning composition.
  • the base fluid comprises a hydrocarbon, a synthetic oil, a vegetable oil, a nut oil, a seed oil, or a combination thereof.
  • the base fluid can comprise an edible oil, an inedible oil, or both (e.g., a mixture of) an edible oil and an inedible oil.
  • an edible oil is one generally accepted as a foodstuff.
  • Edible oils are generally composed of glycerides of fatty acids. Edible oils include oils of vegetable and animal (including dairy) or marine origin.
  • Edible oils can contain minor amounts of other lipids, such as phosphatides of unsaponifiable constituents and of naturally present free fatty acids.
  • Inedible oils include energy oils, such as petroleum oils, kerosene oil, naphtha, and the like, that are not generally accepted as foodstuffs.
  • the base fluid comprises an edible oil, such as, without limitation, canola oil, soybean oil, castor oil, olive oil, sesame oil, avocado oil, peanut oil, coconut oil, rice bran oil, flaxseed oil, sunflower oil, corn oil, or a combination thereof.
  • the edible oil comprises a cooking oil.
  • the base fluid can comprise an edible oil comprising a spent cooking oil.
  • a spent cooking oil can be the oil obtained, for example and without limitation, from producing french fries, fried chicken, Chinese food, and/or another fried/greasy food.
  • Such spent cooking oils are readily available and can be put to beneficial use via incorporation into a cleaning composition as detailed herein.
  • the base fluid comprise an edible oil, such as a cooking oil.
  • the cooking oil comprises one or more vegetable or seed oils.
  • An average size of the metal particles in the cleaning composition can be in the nm range.
  • the metal particles in the cleaning composition can have an average particle size in a range of from about 1 nm to about 5,000 nm, from about 10 nm to about 1 ,000 nm, or from about 100 nm to about 500 nm, in embodiments.
  • an average size of the metal particles in the cleaning composition can be in the micrometer (pm) range.
  • the metal particles in the cleaning composition can have an average particle size in a range of from about 1 pm to about 10,000 pm, from about 1 pm to about 1 ,000 pm, from about 1 pm to about 500 pm, or from about 1 pm to about 50 pm.
  • an average size of the metal particles in the cleaning composition can be in the millimeter (mm) range.
  • the metal particles in the cleaning composition can have an average particle size in a range of from about 1 mm to about 10 mm.
  • the average size of the metal particles is from about 1 nm to about 1 ,000 pm, from about 100 nm to about 100 pm, or from about 1 pm to about 50 pm.
  • the metal particles are size-reduced metal particles, wherein the size-reduced metal particles have been reduced in size via a mechanical method, a chemical method, or both a mechanical method and chemical method.
  • One or more chemical methods, one or more mechanical methods, or a combination of one or more chemical methods and one or more mechanical methods of sizing the metal particles can be employed, serially, and/or simultaneously.
  • the mechanical method can comprise ball milling, high shear blending, mixing, or a combination thereof.
  • the size-reduced particles have been subjected to blending in a reactor/vessel with a high shear rotor-stator mixer, thus reducing the particle size of the metal utilized in the cleaning composition. Further details of metal particle sizing are provided hereinbelow.
  • the cleaning composition creates an exothermic reaction when contacted with one or more components (e.g., “dirt”, such as oil, grease, carbon, soil, moss, mold, etc.) on the surface to be cleaned and water, thereby facilitating removal of the one or more components from the surface.
  • one or more components e.g., “dirt”, such as oil, grease, carbon, soil, moss, mold, etc.
  • the reactions between the metal particles can liberate three products: hydrogen gas, heat, and hydroxide, all of which can help to remove at least some of the one or more components from (i.e., clean) the surface.
  • Metal hydroxides such as NaOH, KOH, etc., generated via the exothermic reaction can react with organic acids in the one or more components (i.e., in the “dirt”, for example grime, soap scum, debris, etc.) to produce surfactant(s).
  • Surfactants can lower (e.g., oil/water) interfacial tension, benefiting removal and flow of removed component(s) from the surface.
  • hydrogen gas generated via the exothermic reaction can assist in a scrubbing action and motility of the one or more components from the surface.
  • the hydrogen gas can further react with the one or more components and/or with oxygen to generate heat to clean the surface.
  • the exothermic reaction produced via the contact of the cleaning composition of this disclosure with water can result in the formation of one or more metal hydroxides (e.g., sodium hydroxide (NaOH)), thus providing a basic (e.g., alkaline) environment to enhance the cleaning of the surface.
  • the exothermic reaction can result in the formation of a gas (e.g., hydrogen (H2) gas), thus enhancing the cleaning of the surface when it reacts with oxygen to form water and a lot of heat.
  • H2O The exothermic reaction of the metal particles (X) with water (H2O) can be represented by the Equation (1):
  • XO + H 2 O - XOH + heat
  • XO is metal oxide Li 2 O, Na 2 0, K 2 O ... (2) and/or, when a salt, such as magnesium sulfate is included to increase an amount of heat or gas produced, via the Equation (3):
  • the heat, the hydroxide (e.g., NaOH) or the gas (e.g., H2 gas), or the combination thereof produced via the interaction of the cleaning composition of this disclosure with the soiled surface can alter a viscosity of the dirt (e.g., grease, oil, etc.) on the surface, can effect breakage of chemical bonds thereof, can tune an interfacial energy between the dirt and the surface and/or a pH value thereof, and/or can reduce a bonding strength between the dirt and the surface.
  • Such locally generated heat, hydroxide, and/or gas can be extremely effective at cleaning the surface in comparison with externally introduced heat, hydroxide, and/or gas, due to enhanced effect within local areas.
  • a local temperature, hydroxide concentration, and/or gas pressure may be elevated (e.g., for a brief time, such as a fraction of a second in a very small area that is crucial for removing the dirt from the surface), but overall the elevated heat, hydroxide concentration, and/or gas concentration do not harm the surface.
  • the method of making the cleaning composition of this disclosure comprises: forming, from a metal, nanoparticles comprising nanometer (nm) sized particles of the metal, microparticles comprising micrometer (pm) sized particles of the metal, milliparticles comprising millimeter (mm) sized particles of the metal, or combinations thereof; and dispersing the metal nanoparticles, microparticles, milliparticles, or combinations thereof in an oil.
  • the average size of the metal particles is in the nanometer range, and the cleaning composition can be referred to as a “nanofluid”, or a “nanomaterial”.
  • the average size of the metal particles is in the micrometer range, and the cleaning composition can be referred to as a “microfluid”, or a “micromaterial”. In embodiments, the average size of the metal particles is in the millimeter range, and the cleaning composition can be referred to as a “millifluid”, or a “millimaterial”.
  • the metal particles can be regular in average shape or irregular in average shape.
  • the metal particles comprise nanoparticles that can comprise, for example, nanosheets, such as sodium nanosheets.
  • Forming the particles can comprise applying a shear force and/or chemical to reduce a size of the metal.
  • applying the shear force comprises grinding (e.g., ball milling), blending (e.g., in a blender or a reactor/vessel with high shear rotor-stator), or combinations thereof, as mentioned hereinabove.
  • Applying the force can comprise grinding (e.g., ball milling), blending (e.g., in a blender or a reactor/vessel with high shear rotor-stator), or both grinding and blending (in either order or simultaneously) of the metal in the base fluid of the cleaning composition or a disparate base fluid utilized during size reduction of the metal particles.
  • applying the force can comprise grinding (e.g., ball milling), blending (e.g., in a blender or reactor/vessel with high shear rotor-stator), or the combination thereof of the metal in a (e.g., first) base fluid disparate from the base fluid of the cleaning composition to produce size-reduced metal particles, separating the (e.g., first) base fluid from the size-reduced metal particles, and dispersing the size-reduced metal particles in the base fluid of the cleaning composition (e.g., a second base fluid, such as an edible oil) to form the cleaning composition.
  • a base fluid e.g., a second base fluid, such as an edible oil
  • the metal can comprise (i) sodium (Na), potassium (K), lithium (Li), rubidium (Rb), cesium (Cs), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), aluminum (Al), gallium (Ga), or a combination thereof; (ii) an oxide, sulfide, sulfate, nitride, nitrate, phosphate, or phosphide of one or more of the metals in (i); or (iii) a combination of at least one of (i) and at least one of (ii).
  • the metal comprises sodium.
  • the oil can comprise an edible oil, an inedible oil, or both an edible oil and an inedible oil.
  • the oil comprises a cooking oil.
  • the oil can comprise a spent cooking oil.
  • a spent cooking oil can be the oil obtained from producing french fries, fried chicken, Chinese food, and/or another fried/greasy food.
  • the cooking oil comprises a vegetable oil.
  • a method of making a cleaning composition comprises a first mixing of a metal (e.g., sodium metal) and a base fluid (e.g., silicone oil), wherein the first mixing is for a first time (T1 ) at a first speed (S1 ), followed by a second mixing of said metal and the or another base fluid for a second time (T2) at a second speed (S2), wherein the first mixing and the second mixing can be effected by a mechanical shear force; and wherein S1 ⁇ S2, and T1 ⁇ T2, wherein the first followed by the second mixing produce the size-reduced particles. Cooling can be utilized at five-minute intervals during each of the first mixing and said second mixing.
  • T1 may be one of about 1 , 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 , 12,
  • T2 may be about 2, 3, 4, 5, 6, 7, 8, 8, 10, 11 , 12, 13,
  • S1 can be 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 150, 200, 250, 300, 350, 400, 50, 1000, 10000, 15000 or 100000 rpm; and S2 can be about 10, 20, 30, 40, 50, 60, 70, 80, 90, 100, 150, 200, 250, 300, 350, 400, 50, 1000, 10000, 15000 or 100000 rpm.
  • size reduction of the metal particles can be effected in a first base fluid (e.g., an inedible or edible oil, for example, silicone oil), the size-reduced metal particles can be separated (e.g., via centrifugation, settling, etc.) from the first base fluid, and the separated size-reduced metal particles can be dispersed in a second base fluid (e.g., the same as or different edible or inedible oil) to form the cleaning composition of this disclosure.
  • a first base fluid e.g., an inedible or edible oil, for example, silicone oil
  • a second base fluid e.g., the same as or different edible or inedible oil
  • the base fluid e.g., the first base fluid, the second base fluid
  • the base fluid can be selected to prevent the metal particles from contacting water and oxygen prior to use in cleaning a surface.
  • the metal particles e.g., bulk metal (i) and/or metal oxide or salt materials (ii) can be firstly reduced in size (e.g., to nanometer, micrometer, and/or millimeter in average size) in an environment without air and water, such as milling or blending in a first base fluid (e.g., a viscous oil like silicone oil, engine oil, mineral oil, vegetable oil, liquid wax, etc.) for a first time period of a few minutes to a few hours, such as between 5 minutes to 600 minutes, 10 minutes to 500 minutes, 20 minutes to 400 minutes, 30 minutes to 200 minutes, 45 minutes to 100 minutes, 60 minutes to 120 minutes; and 1 minute to 60 minutes.
  • a first base fluid e.g., a viscous oil like silicone oil, engine oil, mineral oil, vegetable oil, liquid wax, etc.
  • the sizing can be effected in multiple blending/grinding/ball milling time periods separated by cooling periods. Each of the multiple time periods can have a certain shear rate (e.g., a different RPM).
  • a second base fluid e.g., an edible or inedible oil
  • the sizing of the metal particles is effected in the oil of the cleaning composition, and no separation and re-dispersing are employed.
  • the method of cleaning the surface comprises providing a cleaning composition of this disclosure; and contacting the surface with the cleaning composition in the presence of water, whereby the exothermic reaction of the one or more compounds with the cleaning composition and the water provides a cleaned surface, wherein the cleaned surface has fewer of the one or more compounds thereon than the surface.
  • Contacting the surface with the cleaning composition can comprise immersing the surface in the cleaning composition, rinsing the surface with the cleaning composition, wiping, brushing, and/or scrubbing the surface with the cleaning composition, or another method of contacting the “dirty” surface with the cleaning composition.
  • the contacting can be done at ambient (e.g., room) temperature, or an elevated temperature.
  • ambient e.g., room temperature
  • the temperature of the cleaning composition, the surface itself, or both can be increased during the contacting of the surface with the cleaning composition.
  • the contacting of the cleaning composition with the surface to be cleaned is effected at ambient (e.g., room temperature) temperature.
  • the surface cleaned via the cleaning composition described herein is not particularly limited.
  • the surface comprises a surface of a filter (e.g., of a vent hood (e.g., a range vent hood) or exhaust fan), a surface (e.g., an interior or exterior surface) of a pipe (e.g., a drain pipe, a transport pipe), a grill surface, a drain surface (e.g., an interior surface of a drain), a baking surface (e.g., a surface of a baking pot or pan), a cooking surface (e.g., a stovetop, a cooktop, BBQ grill), a cooking area (e.g., a surface proximate a cooking surface), an oven surface (e.g., an interior surface in an oven), an appliance surface (e.g., a toaster oven surface, a toaster surface), a wall, a floor (e.g., a restaurant floor, a shop), a surface of a pipe (e.g.
  • the surface cleaned with the cleaning composition of this disclosure comprises a ceramic surface, a metallic surface, a plastic surface, a stone surface, a graphite surface, a cement surface, a concrete surface, or a combination thereof.
  • the surface cleaned with the cleaning composition of this disclosure can be in a home, a restaurant (e.g., a cafeteria), a transport pipeline (e.g., an oil transport pipeline), a factory (e.g., a chemical production factory), or a combination thereof.
  • a restaurant e.g., a cafeteria
  • a transport pipeline e.g., an oil transport pipeline
  • a factory e.g., a chemical production factory
  • PCBs polychlorinated biphenyls
  • PCBs in contaminated mineral oil e.g., transformer oil
  • the cleaning composition e.g., a sodium nanofluid
  • a cleaning composition e.g., a sodium nanofluid
  • the processed oil can be suitable for continued use as a dielectric fluid and not present problems for the environment.
  • the cleaning composition of this disclosure e.g., a sodium nanofluid
  • the cleaning composition of this disclosure can be utilized in a liquid-liquid PCB extraction process. Relative to current remediation of PCB in transformers, utilization of the cleaning composition (e.g., a sodium nanofluid) in such remediation can be economically viable and potentially less costly than such conventional remediation processes.
  • Embodiments for extraction of lithium-ion from batteries are also disclosed herein.
  • the emergence and dominance of lithium-ion batteries in expanding markets such as consumer electronics, electric vehicles, and renewable energy storage are driving enormous interests and investments in the battery sector.
  • the explosively growing demand is generating a huge number of spent lithium-ion batteries, thereby urging the development of cost-effective and environmentally sustainable recycling technologies to manage end-of-life batteries.
  • the recycling of end-of-life batteries is still in its infancy, with many fundamental and technological hurdles to overcome.
  • Concerted worldwide research efforts show that LIBs have potential because of the lightweight, rechargeable, and powerful features thereof. LIBs are revolutionizing the era of electrified mobility and the storage of energy from renewable sources.
  • a cleaning composition of this disclosure e.g., a sodium nanofluid
  • a cleaning composition of this disclosure is utilized to extract lithium ion from spend lithium batteries.
  • Embodiments of cleaning methods disclosed herein are relatively easy to operate and also economical. It has been unexpectedly discovered that embodiments of the cleaning compositions disclosed herein (e.g., a sodium particle fluid) can be utilized for cleaning the dirty and greasy surfaces in domestic applications (e.g., appliances in kitchens, drain systems, bathrooms, and anywhere such dirty and greasy surfaces are found) and also for cleaning dirty and greasy surfaces (e.g., drain systems and oil pipes in oil and gas refineries) in industrial environments.
  • domestic applications e.g., appliances in kitchens, drain systems, bathrooms, and anywhere such dirty and greasy surfaces are found
  • dirty and greasy surfaces e.g., drain systems and oil pipes in oil and gas refineries
  • Embodiments of the cleaning compositions disclosed herein can react with water to generate heat, hydrogen gas, and hydroxide (e.g., sodium hydroxide) that are all efficient on taking grease, aged oil, and other “dirt” off surfaces (e.g., metallic, ceramic, and plastic surfaces) to restore the original cleanness and/or unclog pipes.
  • the cleaning composition can be utilized to clean a variety of surfaces, in domestic and industrial applications. Without limitation, a few applications will be described hereinbelow.
  • Embodiments of the cleaning compositions disclosed herein can be utilized for domestic cleaning applications.
  • the cleaning composition of this disclosure can be utilized for cleaning kitchen appliances.
  • the cleaning composition of this disclosure e.g., a sodium metal or other metal particle fluid
  • the Example presented hereinbelow depicts a dirty and cleaned filter of a kitchen exhaust fan, as well as a dirty and cleaned engine component.
  • Drain systems in home kitchens, cafeterias, restaurants, etc. often become clogged due to the oily drainage from the sink.
  • Conventional drain cleaners are often ineffective, and handymen or plumber can be quite expensive.
  • the herein disclosed cleaning composition can be utilized to effectively unclog clogged drains, because to the heat, hydrogen gas, and/or hydroxide produced by the exothermic reaction can work together to dissolve the clog.
  • the drain cleaned by the cleaning composition of this disclosure can be a kitchen, bathroom, or other drain system.
  • Bathrooms surfaces including walls, floors, and drains, accumulate dirt.
  • Application of the cleaning composition of this disclosure e.g., a sodium metal or other metal particle fluid
  • a sodium metal or other metal particle fluid can thus be utilized to clean the walls, floors, and/or unclog drains, including jacuzzi drains, toilet water tanks and toilet drains.
  • the herein disclosed cleaning composition e.g., a sodium metal or other metal particle fluid
  • the surfaces cleaned with the cleaning composition of this disclosure can thus include oil pipes, any pipes in oil and gas industry, especially refinery equipment pipes, drain systems and pipes in chemical factories, makeup manufacturing systems, and other industrial systems and pipes where dirt and debris have accumulated.
  • An example of a cleaning composition of this disclosure is a sodium fluid or nanofluid. Like the other cleaning compositions of this disclosure, such a sodium nanofluids can exhibit outstanding performance for cleaning surfaces without requiring additional heat input to effect the cleaning of the surface.
  • a composition e.g., sodium nanofluid as disclosed herein in one embodiment can be produced using a household blender, making its synthesis simple, fast, and inexpensive.
  • the surface cleaning can be based on the reaction of Equation (4):
  • This reaction releases a substantial amount of heat, which may therefore promote surface cleaning.
  • sodium metal may attack the aromatic compounds in for example grease and form electron donor-acceptor ion pairs, i.e., Na + [aromatic ]- or (Na + ) 2 [aromatic ] 2- , which promote cleaning.
  • one of the reaction products sodium hydroxide (NaOH)
  • H2 hydrogen gas
  • Organic acids on the surface may react with the produced sodium hydroxide (NaOH), and thus generate surfactants which can emulsify oil and water, to further facilitate cleaning of the surface.
  • the metal particles e.g., sodium
  • the base fluid e.g., oil
  • the cleaning composition was utilized to clean a filter and an engine component. The cleaning was effected by spraying the filter and the auto component with the cleaning fluid and water alternatively multiple times, then shaking the filter and the engine component inside a mixture of the cleaning fluid and water until removal of the dirt and grease. All experiments described herein were conducted at room temperature.
  • reaction between the sodium particles and water cleans the surface and may also reduce the viscosity of the one or more components (e.g., the “dirt”, oil, or grease, on the surface) and improve flowability of released components (e.g., soil, grease, oil, etc.) away from the surface.
  • the reaction of the sodium metal composition with the one or more components is highly exothermic and thus may have resulted in local increases in temperature that further reduced a viscosity of the one or more components, facilitating removal thereof from the surfaces to provide the cleaned surface.
  • the particle reaction with water on the surface may have also produced metal hydroxide (e.g., sodium hydroxide in this Example) which may have further reacted with organic acids on the surfaces, thus generating in situ surfactants that lowered oil/water interfacial tension.
  • the reaction may have produced hydrogen gas (e.g., on the surface), which may have increased energy, thus causing a viscosity reduction of the one or more components being cleaned from the surfaces, and inducing hydrogenation reactions, further facilitating the cleaning of the surfaces.
  • Figure 1 B which is a photograph of the filter of Figure 1A after cleaning with the cleaning composition of this Example, the filter appears clean, and the oil and grease apparent in the photograph of the soiled filter in Figure 1A have been removed.
  • Figure 2A is a photograph of an engine component before cleaning with the composition of this Example, showing deposited carbon
  • Figure 2B is a photograph of the engine component of Figure 2A after cleaning and removal of deposited carbon via the cleaning composition of this Example.
  • a cleaning composition comprises: a plurality of metal particles; and a base fluid, wherein the plurality of metal particles are dispersed in the base fluid; wherein the plurality of metal particles have an average size in a range of from about 1 nanometer (nm) to about 10,000 micrometers (pm); and wherein the cleaning composition is configured to generate an exothermic reaction when contacted with one or more components on a surface and water to facilitate removal of the one or more components from the surface.
  • a second embodiment can include the cleaning composition of the first embodiment, wherein the plurality of metal particles comprise: (i) a metal selected from sodium (Na), potassium (K), lithium (Li), rubidium (Rb), cesium (Cs), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), aluminum (Al), gallium (Ga), or a combination thereof, (ii) an oxide, sulfide, sulfate, nitride, nitrate, phosphate, or phosphide of a metal in (i), or (iii) a combination of (i) and (ii).
  • a metal selected from sodium (Na), potassium (K), lithium (Li), rubidium (Rb), cesium (Cs), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), aluminum (Al), gallium (Ga), or a combination thereof, (ii) an oxide, sulfide, sul
  • a third embodiment can include the cleaning composition of the first or second embodiment, wherein the base fluid comprises an edible oil, an inedible oil, or both an edible oil and an inedible oil.
  • a fourth embodiment can include the cleaning composition of the third embodiment, wherein the base fluid comprises a hydrocarbon, a synthetic oil, a vegetable oil, a nut oil, a seed oil, or a combination thereof.
  • a fifth embodiment can include the cleaning composition of the third or fourth embodiment, wherein the edible oil comprises canola oil, soybean oil, castor oil, olive oil, sesame oil, avocado oil, peanut oil, coconut oil, rice bran oil, flaxseed oil, sunflower oil, corn oil, or a combination thereof.
  • the edible oil comprises canola oil, soybean oil, castor oil, olive oil, sesame oil, avocado oil, peanut oil, coconut oil, rice bran oil, flaxseed oil, sunflower oil, corn oil, or a combination thereof.
  • a sixth embodiment can include the cleaning composition of any one of the first to fifth embodiments, wherein the average size of the plurality of metal particles is in the nm range (e.g., from about 1 nm to about 1 ,000 nm, from about 1 nm to about 500 nm, or from about 10 nm to about 500 nm), the pm range (e.g., from about 1 pm to about 10,000 pm, from about 1 pm to about 1 ,000 pm, from about 1 pm to about 500 pm, or from about 10 pm to about 500 pm), or the mm range (e.g., from about 1 mm to about 10 mm).
  • the nm range e.g., from about 1 nm to about 1 ,000 nm, from about 1 nm to about 500 nm, or from about 10 nm to about 500 nm
  • the pm range e.g., from about 1 pm to about 10,000 pm, from about 1 pm to about 1 ,000 pm, from about 1 pm to about 500 pm,
  • a seventh embodiment can include the cleaning composition of the sixth embodiment, wherein the average size of the plurality of metal particles is from about 1 nm to about 1000 pm, from about 100 nm to about 100 pm, from about 1 pm to about 10 pm).
  • An eighth embodiment can include the cleaning composition of any one of the first to seventh embodiments, wherein the plurality of metal particles are size-reduced metal particles, wherein the size-reduced metal particles have been reduced in size via a mechanical, a chemical method, or both.
  • a ninth embodiment can include the cleaning composition of the eighth embodiment, wherein the mechanical method comprises ball milling, blending (e.g., blending in a reactor/vessel with a high shear rotor-stator mixer), or a combination thereof.
  • a method of cleaning a surface comprises: (a) providing a cleaning composition comprising a plurality of metal particles and a base fluid, wherein the plurality of metal particles are dispersed in the base fluid, wherein the plurality of metal particles have a size in a range of from about 1 nanometer (nm) to about 10,000 micrometers (pm); (b) contacting the surface and the one or more components on the surface with the cleaning composition in the presence of water; and (c) generating an exothermic reaction in response to (b) to provide a cleaned surface, wherein the cleaned surface has fewer of the one or more compounds thereon than the surface.
  • An eleventh embodiment can include the method of the tenth embodiment, wherein the surface comprises a filter (e.g., of a vent hood (e.g., a range vent hood) or exhaust fan), a pipe (e.g., a drain pipe, a transport pipe), a grill surface, a drain surface, a baking surface (e.g., a baking pot or pan), a cooking surface (e.g., a stovetop, a cooktop, BBQ grill), a cooking area (e.g., a surface proximate a cooking surface), an oven surface (e.g., an interior surface in an oven), an appliance surface (e.g., a toaster oven surface, a toaster surface), a wall, a floor (e.g., a restaurant floor, a shop (e.g., a vehicle repair shop) floor), a jacuzzi surface, a toilet surface (e.g., a toilet tank surface), a walkway (e.g., a toilet surface
  • a twelfth embodiment can include the method of the tenth or eleventh embodiment, wherein the surface comprises a ceramic surface, a metallic surface, a plastic surface, a stone surface, a graphite surface, a cement surface, a concrete surface, or a combination thereof.
  • a thirteenth embodiment can include the method of any one of the tenth to twelfth embodiments, wherein the surface is in a home, a restaurant (e.g., a cafeteria), a transport pipeline (e.g., an oil transport pipeline), a factory (e.g., a chemical production factory), or a combination thereof.
  • a restaurant e.g., a cafeteria
  • a transport pipeline e.g., an oil transport pipeline
  • a factory e.g., a chemical production factory
  • a fourteenth embodiment can include the method of any one of the tenth to thirteenth embodiments, wherein (c) results in the formation of one or more metal hydroxides (e.g., sodium hydroxide (NaOH)), thus providing base to enhance the cleaning of the surface.
  • metal hydroxides e.g., sodium hydroxide (NaOH)
  • a fifteenth embodiment can include the method of any one of the tenth to fourteenth embodiments, wherein (c) results in the formation of hydrogen (H2) gas, thus enhancing the cleaning of the surface.
  • a method comprises: forming, from a metal, nanoparticles comprising nanometer (nm) sized particles of the metal, microparticles comprising micrometer (pm) sized particles of the metal, milliparticles comprising millimeter (mm) sized particles of the metal, or a combination thereof; and dispersing the metal nanoparticles, microparticles, and/or milliparticles in an oil.
  • a seventeenth embodiment can include the method of the sixteenth embodiment, wherein forming comprises applying a (e.g., high) shear force and/or chemical to reduce a size of the metal.
  • An eighteenth embodiment can include the method of the sixteenth or seventeenth embodiment, wherein applying the shear force comprises grinding (e.g., ball milling), blending (e.g., in a blender or a reactor/vessel with high shear rotorstator), or a combination thereof.
  • applying the shear force comprises grinding (e.g., ball milling), blending (e.g., in a blender or a reactor/vessel with high shear rotorstator), or a combination thereof.
  • a nineteenth embodiment can include the method of the eighteenth embodiment, wherein applying the force comprises grinding (e.g., ball milling), blending (e.g., in a blender or a reactor/vessel with high shear rotor-stator), or the combination thereof of the metal in the oil.
  • grinding e.g., ball milling
  • blending e.g., in a blender or a reactor/vessel with high shear rotor-stator
  • a twentieth embodiment can include the method of any one of the sixteenth to nineteenth embodiments, wherein applying the force comprises grinding (e.g., ball milling), blending (e.g., in a blender or reactor/vessel with high shear rotor-stator), or the combination thereof of the metal in a base fluid disparate from the oil, separating the base fluid from the nanoparticles, the microparticles, the milliparticles, or the combination thereof particles, and dispersing the nanoparticles, the microparticles, the milliparticles, or the combination thereof with the oil to form the cleaning composition.
  • grinding e.g., ball milling
  • blending e.g., in a blender or reactor/vessel with high shear rotor-stator
  • the combination thereof of the metal in a base fluid disparate from the oil separating the base fluid from the nanoparticles, the microparticles, the milliparticles, or the combination thereof particles, and dispersing the nanoparticles, the microp
  • a twenty first embodiment can include the method of any one of the sixteenth to twentieth embodiments, wherein the metal comprises: (i) sodium (Na), potassium (K), lithium (Li), rubidium (Rb), cesium (Cs), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), aluminum (Al), gallium (Ga), or a combination thereof; (ii) an oxide, sulfide, sulfate, nitride, nitrate, phosphate, or phosphide of (i); or a combination of (i) and (ii).
  • the metal comprises: (i) sodium (Na), potassium (K), lithium (Li), rubidium (Rb), cesium (Cs), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), aluminum (Al), gallium (Ga), or a combination thereof; (ii) an oxide, sulfide, sulfate, nitride,
  • a twenty second embodiment can include the method of any one of the sixteenth to twenty first embodiments, wherein the metal comprises sodium.
  • a twenty third embodiment can include the method of any one of the sixteenth to twenty second embodiments, wherein the oil comprises an edible oil, an inedible oil, or both an edible oil and an inedible oil.
  • a twenty fourth embodiment can include the method of the twenty third embodiment, wherein the oil comprises a cooking oil.
  • a twenty fifth embodiment can include the method of the twenty fourth embodiment, wherein the oil comprises a spent cooking oil (e.g., the oil from french fries, fried chicken, Chinese food, another fried/greasy food, etc.)
  • the oil comprises a spent cooking oil (e.g., the oil from french fries, fried chicken, Chinese food, another fried/greasy food, etc.)
  • a twenty sixth embodiment can include the method of the twenty fourth or twenty fifth embodiment, wherein the cooking oil comprises a vegetable oil.
  • a cleaning system comprises: a surface to be cleaned; and a cleaning composition comprising: a plurality of metal particles; and a base fluid, wherein the plurality of metal particles are dispersed in the base fluid; wherein the plurality of metal particles have an average size in a range of from about 1 nanometer (nm) to about 10,000 micrometers (pm); and wherein the cleaning composition is configured to generate an exothermic reaction when contacted with one or more components on the surface and water to facilitate removal of the one or more components from the surface.
  • a twenty eighth embodiment can include the cleaning system of the twenty seventh embodiment, wherein the plurality of metal particles comprise: (i) sodium (Na), potassium (K), lithium (Li), rubidium (Rb), cesium (Cs), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), aluminum (Al), gallium (Ga), or a combination thereof; (ii) an oxide, sulfide, sulfate, nitride, nitrate, phosphate, or phosphide of one or more metals in (i); or (iii) a combination of (i) and (ii).
  • the plurality of metal particles comprise: (i) sodium (Na), potassium (K), lithium (Li), rubidium (Rb), cesium (Cs), magnesium (Mg), calcium (Ca), strontium (Sr), barium (Ba), aluminum (Al), gallium (Ga), or a combination thereof; (ii) an oxide, sulf
  • a twenty ninth embodiment can include the cleaning system of the twenty seventh or twenty eighth embodiments, wherein the surface comprises a filter, a pipe, a grill surface, a drain surface, a baking surface, a cooking surface, a cooking area, an oven surface, an appliance surface, a wall, a floor (e.g., a restaurant floor, a shop, a jacuzzi surface, a toilet surface, a walkway, or a driveway, an industrial oily or greasy area, a septic tank system, a commercial restaurant grease trap, an automobile or jet engine component, an artillery component, a surface on or in a piece of oilfield equipment, a transformer, a lithium battery, or another piece of commercial or industrial equipment or manufacturing machinery.
  • the surface comprises a filter, a pipe, a grill surface, a drain surface, a baking surface, a cooking surface, a cooking area, an oven surface, an appliance surface, a wall, a floor (e.g., a restaurant floor, a shop, a jacuzzi surface
  • a cleaning composition of this disclosure e.g., a sodium nanofluid
  • PCBs polychlorinated biphenyls
  • a cleaning composition of this disclosure e.g., a sodium nanofluid
  • a cleaning composition of this disclosure is utilized to extract lithium from spent lithium batteries.
  • R RI +k* (Ru-RI)
  • k is a variable ranging from 1 percent to 100 percent with a 1 percent increment, i.e., k is 1 percent, 2 percent, 3 percent, 4 percent, 5 percent, . 50 percent, 51 percent, 52 percent, , 95 percent, 96 percent, 97 percent, 98 percent, 99 percent, or 100 percent.
  • any numerical range defined by two R numbers as defined in the above is also specifically disclosed. Use of broader terms such as comprises, includes, having, etc.

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)

Abstract

L'invention concerne une composition de nettoyage. La composition de nettoyage contient une pluralité de particules métalliques et un fluide de base. Les différentes particules métalliques ont une taille moyenne dans une plage d'environ 1 nanomètre (nm) à environ 10 000 micromètres (µm), et sont dispersées dans le fluide de base. La composition de nettoyage est configurée pour générer une réaction exothermique lorsqu'elle est mise en contact avec un ou plusieurs composants sur une surface et de l'eau pour faciliter le retrait du ou des composants à partir de la surface. L'invention concerne également des procédés de fabrication et d'utilisation de la composition de nettoyage.
PCT/US2022/029489 2022-05-16 2022-05-16 Fluide a nano-micro particules pour nettoyer des surfaces et conduites sales et graisseuses WO2023224598A1 (fr)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2178441A (en) * 1985-07-31 1987-02-11 Joseph Samuel Kanfer Cleaning composition containing a crushable abrasive
US6328816B1 (en) * 1995-07-25 2001-12-11 Henkel Corporation Composition and method for degreasing metal surfaces
US20150083165A1 (en) * 2013-09-26 2015-03-26 General Electric Company Suspensions of inorganic cleaning agents
US20210155845A1 (en) * 2019-11-22 2021-05-27 University Of Houston System Method for reducing the viscosity of heavy oil for extraction, transport in pipes, and cleaning thereof

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2178441A (en) * 1985-07-31 1987-02-11 Joseph Samuel Kanfer Cleaning composition containing a crushable abrasive
US6328816B1 (en) * 1995-07-25 2001-12-11 Henkel Corporation Composition and method for degreasing metal surfaces
US20150083165A1 (en) * 2013-09-26 2015-03-26 General Electric Company Suspensions of inorganic cleaning agents
US20210155845A1 (en) * 2019-11-22 2021-05-27 University Of Houston System Method for reducing the viscosity of heavy oil for extraction, transport in pipes, and cleaning thereof

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