Process and device for separating liquid from a multiphase mixture

Process and device for separating liquid from a multiphase mixture contained in a vessel and comprising solid particles and at least one liquid phase forming together at least one suspension, and a gas phase in which at least part of the mixture is circulated through at least one cross-flow filter located outside the vessel, therefore separating said part of the mixture into a filtered liquid and a concentrate.

Method of removing hydrogen peroxide from sulfuric acid

A method of removing hydrogen peroxide from sulfuric acid includes pouring sulfuric acid (HSO) having 0.1% to 10% of hydrogen peroxide (HO) into a vessel; adding a catalyst containing metal or metal compound to the vessel to undergo a reaction with the sulfuric acid (HSO) to remove hydrogen peroxide (HO) from the sulfuric acid (HSO), to generate heat, and to generate metal ions in the sulfuric acid (HSO); activating a cooling device to cool the vessel to a predetermined temperature range; adding sulfur (S) to the vessel to undergo a reaction with the metal ions to generate metallic sulfide; and purifying the metal free sulfuric acid (HSO) to obtain the metallic sulfide and highly purified, diluted sulfuric acid (HSO) as products. 1. A method of removing hydrogen peroxide from sulfuric acid , comprising the steps of:{'sub': 2', '4', '2', '2, '(i) pouring sulfuric acid (HSO) having 0.1% to 10% of hydrogen peroxide (HO) into a vessel;'}{'sub': 2', '4', '2', '2', '2', '4', '2', '4, '(ii) adding a catalyst containing metal or metal compound to the vessel to undergo a reaction with the sulfuric acid (HSO) to remove hydrogen peroxide (HO) from the sulfuric acid (HSO), to generate heat, and to generate metal ions in the sulfuric acid (HSO);'}(iii) activating a cooling device to cool the vessel to a predetermined temperature range;{'sup': '2−', '(iv) adding sulfur (S) to the vessel to undergo a reaction with the metal ions to generate metallic sulfide; and'}{'sub': 2', '4', '2', '4, '(v) purifying the metal free sulfuric acid (HSO) to obtain the metallic sulfide and highly purified, diluted sulfuric acid (HSO) as products.'}2. The method of removing hydrogen peroxide from sulfuric acid of claim 1 , wherein in step (ii) the catalyst is copper (Cu).3. The method of removing hydrogen peroxide from sulfuric acid of claim 1 , wherein in step (ii) the catalyst is copper compound.4. The method of removing hydrogen peroxide from sulfuric acid of claim 1 , wherein in step (ii) the ...

INTEGRATED PROCESS FOR MAKING PROPENE OXIDE AND AN ALKYL TERT-BUTYL ETHER

An integrated process for making propene oxide and an alkyl tert-butyl ether comprises dehydrogenating a feed stream comprising iso-butane to provide a stream comprising iso-butene and hydrogen and separating this stream into a stream consisting essentially of hydrogen and a stream comprising iso-butene; reacting a part or all of the stream comprising iso-butene with an alkanol in the presence of a solid acid catalyst to provide an alkyl tert-butyl ether; reacting a part or all of the stream consisting essentially of hydrogen with oxygen, providing a stream comprising hydrogen peroxide; and reacting a part or all of the stream comprising hydrogen peroxide with propene in the presence of an epoxidation catalyst to provide propene oxide. 19-. (canceled)10. An integrated process for making propene oxide and an alkyl tert-butyl ether , comprising:a) a step of dehydrogenating a feed stream S1 comprising iso-butane, to provide a stream, S2, comprising iso-butene and hydrogen;b) a separation step separating stream S2 into a stream, S3, consisting essentially of hydrogen and a stream, S4, comprising iso-butene;c) a step of reacting a part or all of stream S4 with an alkanol in the presence of a solid acid catalyst, to provide a stream, S5, comprising an alkyl tert-butyl ether;d) a separation step separating the alkyl tert-butyl ether from stream S5;e) a step of reacting a part or all of stream S3 with oxygen, to provide a stream, S6, comprising hydrogen peroxide;f) a step of reacting a part or all of stream S6 with propene in the presence of an epoxidation catalyst, to provide a stream, S7, comprising propene oxide; andg) a separation step separating propene oxide from stream S7.11. The process of claim 10 , wherein the alkanol is methanol.12. The process of claim 10 , wherein a stream claim 10 , S8 claim 10 , comprising unreacted iso-butane is separated in step d) claim 10 , a stream S9 comprising more than 80% by weight iso-butane is separated from stream S8 and stream S9 ...

INTEGRATED PROCESS FOR MAKING PROPENE OXIDE AND AN ALKYL TERT-BUTYL ETHER

An integrated process for making propene oxide and an alkyl tert-butyl ether comprises dehydrogenating a feed stream comprising propane and iso-butane to provide a stream comprising propene, iso-butene and hydrogen; separating this stream into a stream consisting essentially of hydrogen and a stream comprising propene and iso-butene; separating the stream comprising propene and iso-butene into a stream comprising propene and a stream comprising iso-butene; reacting a part or all of the stream comprising iso-butene with an alkanol in the presence of a solid acid catalyst to provide an alkyl tert-butyl ether; and reacting a part or all of the stream comprising propene with hydrogen peroxide in the presence of an epoxidation catalyst to provide propene oxide. 110-. (canceled)11. An integrated process for making propene oxide and an alkyl tert-butyl ether comprising;{'b': 1', '2, 'a) a step of dehydrogenating a feed stream, S, comprising propane and iso-butane, to provide a stream, S, comprising propene, iso-butene and hydrogen;'}{'b': 2', '3', '4, 'b) a separation step separating stream S into a stream, S, consisting essentially of hydrogen and a stream, S, comprising propene and iso-butene;'}{'b': 4', '5', '6, 'c) a separation step separating stream S into a stream, S, comprising propene and a stream, S, comprising iso-butene;'}{'b': 5', '7, 'd) a step of reacting a part or all of stream S with hydrogen peroxide in the presence of an epoxidation catalyst to provide a stream, S, comprising propene oxide;'}{'b': '7', 'e) a separation step separating propene oxide from stream S;'}{'b': 6', '8, 'f) a step of reacting a part or all of stream S with an alkanol in the presence of a solid acid catalyst, to provide a stream, S, comprising an alkyl tert-butyl ether; and'}{'b': '8', 'g) a separation step separating the alkyl tert-butyl ether from stream S.'}12. The process of claim 11 , wherein the alkanol is methanol.13595. The process of claim 11 , wherein unreacted propane is ...

Plant for hydrogen peroxide production and process using it

A plant for producing hydrogen peroxide by an autoxidation process (AO-process) comprising hydrogenating an anthraquinone in a working solution, oxidizing the hydrogenated anthraquinone with oxygen to form hydrogen peroxide and extracting the hydrogen peroxide from the working solution, the plant comprising at least one skid mounted module selected from the group consisting of a skid mounted module comprising at least one hydrogenator (hydrogenation reactor) to hydrogenate the anthraquinone in the working solution (hydrogenation skid 1); a skid mounted module comprising at least one oxidizer (oxidation reactor) to oxidize the hydrogenated anthraquinone with oxygen to form hydrogen peroxide (oxidizer skid 2); optionally a skid mounted module comprising at least one means to compress air (process air compressor skid 3), to feed oxygen, in particular oxygen from the air, into an oxidizer of skid 2, and in case of presence of skid 3 a further skid mounted module comprising at least one means to recover the solvent (solvent recovery unit skid 4), in particular if oxygen from the air is used to feed oxygen into an oxidizer of skid 2; a skid mounted module comprising at least one means to extract the hydrogen peroxide from the working solution (extraction skid 5); a skid mounted module (skid 6), comprising at least one means to deliver hydrogen peroxide solution to the point of use and/or optionally to a storage tank optionally with additional means for adjusting the hydrogen peroxide concentration. Preferably the plant is a modular reactor system which is configured to operate without a reversion unit as a small-to-medium scale mini-AO process plant with a production capacity of hydrogen peroxide of up to 20 kilo tons per year and which can be controlled also remotely.

Microwave absorbing carbon-metal oxides and modes of using, including water disinfection

Microwave absorbing materials are provided herein. Disclosed microwave absorbing materials include those comprising metal oxide nanocrystals hybridized to a carbon nanomaterial. Methods for making and using microwave absorbing materials are also disclosed, such as for generation of reactive oxygen species and disinfection of water.

PROCESS FOR MANUFACTURING AN AQUEOUS HYDROGEN PEROXIDE SOLUTION

Process for manufacturing an aqueous hydrogen peroxide solution comprising the following steps: —hydrogenating a working solution which comprises an alkylanthraquinone and/or tetrahydroalkylanthraquinone and a mixture of a non-polar organic solvent and a polar organic solvent wherein the concentration of non-polar organic solvent in said mixture is equal to or higher than 30 wt %; —oxidizing the hydrogenated working solution to produce hydrogen peroxide; and —isolating the hydrogen peroxide, wherein the polar organic solvent is a substituted cyclohexane carbonitrile. 114-. (canceled)15. A process for manufacturing an aqueous hydrogen peroxide solution comprising the following steps:hydrogenating a working solution which comprises an alkylanthraquinone and/or tetrahydroalkylanthraquinone and a mixture of a non-polar organic solvent and a polar organic solvent wherein the concentration of non-polar organic solvent in said mixture is equal to or higher than 30 wt %; isolating the hydrogen peroxide,', 'wherein the polar organic solvent is a substituted cyclohexane carbonitrile., 'oxidizing the hydrogenated working solution to produce hydrogen peroxide; and'}16. The process according to claim 15 , wherein the process is a continuous process and wherein the working solution is circulated in a loop through the hydrogenation claim 15 , oxidation and purification steps.17. The process according to claim 15 , wherein the alkylanthraquinone is chosen from the group consisting of ethylanthraquinones like 2-ethylanthraquinone (EQ) claim 15 , 2-isopropylanthraquinone claim 15 , 2-sec- and 2-tert-butylanthraquinone (BQ) claim 15 , 1 claim 15 ,3- claim 15 , 2 claim 15 ,3- claim 15 , 1 claim 15 ,4- and 2 claim 15 ,7-dimethylanthraquinone claim 15 , amylanthraquinones (AQ) like 2-iso- and 2-tert-amylanthraquinone and mixtures of these quinones.18. The process according to claim 17 , wherein the quinone is EQ claim 17 , BQ or AQ claim 17 , preferably EQ.19. The process according to ...

Palladium-containing composition and hydrogen peroxide production method

It is desired to develop a method of producing hydrogen peroxide, which is capable of producing hydrogen peroxide with high production efficiency. According to the present invention, provided is a palladium-containing composition comprising palladium particles and a coating agent that coats the surface of the palladium particles, wherein a compound having an O═X structure (wherein X represents any of a phosphorus atom, a sulfur atom, and a carbon atom) is comprised as the coating agent.

METHOD AND DEVICE FOR CONVERSION OF WATER INTO HYDROGEN PEROXIDE

In a method and device for conversion of water into hydrogen peroxide (HO), a corona discharge zone is generated between a first electrode () and a second electrode () one of which is insulated and another of which is not insulated and wherein a respective surface of each of the electrodes face one another. The first electrode () is rotated so as to induce relative rotation between the first electrode and the second electrode; and liquid water is conveyed on to a surface of the first electrode facing the second electrode close to the axis of rotation () of the first electrode whereby the liquid water advances outward through the corona discharge zone towards a periphery of the first electrode under the action of centrifugal force caused by rotation of the first electrode. 1. A method for conversion of water into hydrogen peroxide (HO) , the method comprising:generating a corona discharge zone between a first electrode and a second electrode one of which is insulated and another of which is not insulated and wherein a respective surface of each of the electrodes face one another;rotating the first electrode so as to induce relative rotation between the first electrode and the second electrode; andconveying liquid water on to a surface of the first electrode facing the second electrode close to the axis of rotation of the first electrode whereby the liquid water advances outward through the corona discharge zone towards a periphery of the first electrode under the action of centrifugal force caused by rotation of the first electrode.2. The method according to claim 1 , wherein removal of HOfrom the surface of the first electrode is accomplished through atomization of HOfrom the edges thereof.3. The method according to claim 2 , wherein HOis atomized outside the corona discharge zone.4. The method according to claim 1 , including cooling the electrodes using cooling liquid supplied to the respective surfaces of the electrodes not facing each other.5. The method ...

Method for producing hydrogen peroxide, kit for hydrogen peroxide production, organic polymer photocatalyst used in said method and kit, and method for producing said organic polymer photocatalyst

The present invention provides a hydrogen peroxide production method and a hydrogen peroxide production kit that are capable of producing hydrogen peroxide more efficiently and at lower costs than conventional methods. Specifically, the present invention provides a hydrogen peroxide production method comprising: (1) a hydrogen peroxide generation step of generating hydrogen peroxide by irradiating a reaction system containing water, an organic polymer photocatalyst, and O 2 with light, wherein (2) the organic polymer photocatalyst comprises an organic polymer having a structure such that a monocyclic or polycyclic aromatic compound and/or a monocyclic or polycyclic heteroaromatic compound is/are linked by a bridging group, and (3) the organic polymer has a band structure such that a conduction band (CB) has a potential lower than the potential of two-electron reduction of O 2 , and a valance band (VB) has a potential higher than the potential of four-electron oxidation of water.

NANOCATALYST WITH MESOPOROUS SHELL FOR HYDROGEN PEROXIDE PRODUCTION AND METHODFOR HYDROGEN PEROXIDE PRODUCTION USING THE SAME

Disclosed is a core-shell structured nanocatalyst for hydrogen peroxide production. The core-shell structured nanocatalyst includes a core composed of spherical silica immobilized with noble metal nanoparticles and a mesoporous shell surrounding the core. The use of the nanocatalyst with a mesoporous shell for the production of hydrogen peroxide from hydrogen and oxygen ensures high hydrogen conversion and hydrogen peroxide production rate compared to the use of conventional nanoparticle catalysts with a microporous shell. Also disclosed is a method for hydrogen peroxide production using the nanocatalyst. 1. A core-shell nanoparticle catalyst for hydrogen peroxide production comprising a silica nanoparticle core immobilized with noble metal nanoparticles and a mesoporous shell.2. The core-shell nanoparticle catalyst according to claim 1 , wherein the noble metal is selected from palladium (Pd) claim 1 , gold claim 1 , (Au) claim 1 , platinum (Pt) claim 1 , and alloys thereof.3. The core-shell nanoparticle catalyst according to claim 1 , wherein the noble metal nanoparticles have a size of 1 to 30 nm.4. The core-shell nanoparticle catalyst according to claim 1 , wherein the core-shell nanoparticles are supported on silica (SiO) claim 1 , titania (TiO) claim 1 , alumina (AlO) claim 1 , zirconia (ZrO) claim 1 , carbon (C) claim 1 , and composites thereof.5. The core-shell nanoparticle catalyst according to claim 1 , wherein the mesoporous shell has a thickness of 5 to 40 nm.6. A method for preparing a core-shell nanoparticle catalyst for hydrogen peroxide production claim 1 , the method comprising (1) preparing noble metal nanoparticles claim 1 , (2) immobilizing the noble metal nanoparticles on silica claim 1 , and (3) coating a mesoporous shell on the silica immobilized with the noble metal nanoparticles.7. A method for hydrogen peroxide production comprising feeding hydrogen and oxygen to a reactor where the hydrogen reacts with the oxygen in the presence of the ...

COMPOSITION, COMPOSITION RESERVOIR, AND METHOD FOR PRODUCING COMPOSITION

An object of the present invention is to provide a composition including hydrogen peroxide, 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, another object of the present invention is to provide a method for producing the composition including hydrogen peroxide, and a composition reservoir for storing the composition. 1. A composition , comprising:hydrogen peroxide;an acid; anda Fe component,{'sup': −5', '2, 'wherein the content of the Fe component is 10to 10in terms of mass ratio with respect to the content of the acid.'}2. The composition according to claim 1 , further comprising:an anthraquinone compound.3. The composition according to claim 1 , wherein the content of the anthraquinone compound is 0.01 ppb by mass to 1000 ppb by mass with respect to the total mass of the composition.4. The composition according to claim 1 , wherein the content of the acid is 0.01 ppb by mass to 1000 ppb by mass with respect to the total mass of the composition.5. The composition according to claim 1 , wherein the total content of the Fe component is 0.1 ppt by mass to 1 ppb by mass with respect to the total mass of the composition.6. The composition according to claim 1 , wherein the content of Fe particles contained in the Fe component is 0.01 ppt by mass to 0.1 ppb by mass with respect to the total mass of the composition.7. The composition according to claim 1 , further comprising:at least one or more metal components containing a specific atom selected from the group consisting of Ni, Pt, Pd, Cr, Ti, and Al,wherein the content of the metal component is 0.01 ppt by mass to 10 ppb by mass with respect to the total mass of the composition for each specific atom.8. The composition according to claim 1 , further comprising:at least one or more metal components containing a specific atom selected from the group consisting of Ni, Pt, Pd, and Al,wherein ...

PROCESS TO OBTAIN HYDROGEN PEROXIDE, AND CATALYST AND CATALYSTS SUPPORTS FOR SAID PROCESS

Catalyst support comprising a material functionalized with at least one acid group and at least one linear hydrophobic group. Catalyst comprising said support and process for the direct synthesis of hydrogen peroxide using said catalyst. 1. A catalyst support , comprising a support material having a surface , at least one acid group grafted on the surface , and at least one linear hydrophobic group grafted on the surface , wherein each of the at least one acid group and at least one linear hydrophobic group is part of a respective silane molecule , each of the respective silane molecules comprises a Si atom and four substituents per such Si atom , 3 of the four substituents are covalently bonded to the surface of the support material , the fourth of the four substituents of a respective one of the silane molecules is an organic substituent which comprises the at least one acid group , and the fourth of the four substituents of another of the respective the silane molecules is the at least one linear hydrophobic group.2. The catalyst support according to claim 1 , wherein the acid group is selected from the group consisting of sulfonic claim 1 , phosphonic claim 1 , carboxylic claim 1 , and dicarboxylic acid groups.3. The catalyst support according to claim 2 , wherein the acid group is p-toluene sulfonic acid.4. The catalyst support according to claim 1 , wherein the linear hydrophobic group is an alkane having from 1 to 20 carbon atoms.5. The catalyst support according to claim 1 , wherein the catalyst support further comprises a halogenated group grafted to the surface of the support material claim 1 , wherein the halogenated group is part of a silane molecule claim 1 , that comprises a Si atom having four substituents per such Si atom claim 1 , 3 of such substituents are covalently bonded to surface of the support material claim 1 , and the fourth of such substituents is the halogenated group.6. The catalyst support according to claim 1 , wherein the respective ...

Process to obtain hydrogen peroxide, and catalyst supports for the same process

A catalyst support comprising a material functionalized with at least one acid group and at least one halogen atom; and a supported catalyst comprising (i) a catalyst and (ii) the catalyst support comprising the functionalized material, as well as their uses in production of hydrogen peroxide. A process for producing hydrogen peroxide, comprising reacting hydrogen and oxygen in the presence of the supported catalyst comprising the functionalized material, optionally with the addition of an inert gas, in a reactor. 1. A catalyst support comprising a material functionalized with at least one acid group and at least one halogen atom.2. The catalyst support according to claim 1 , wherein said material comprises an organic resin.3. The catalyst support according to claim 2 , wherein said organic resin is selected from the group consisting of olefin polymers claim 2 , their copolymers with divinylbenzene claim 2 , and mixtures thereof.4. The catalyst support according to claim 1 , comprising an inorganic solid.5. The catalyst support according to claim 4 , wherein said inorganic solid has a specific surface area greater than 20 m/g.6. The catalyst support according to claim 4 , wherein said inorganic solid has a pore volume of from 0.1 mL/g to 3 mL/g.7. The catalyst support according to claim 4 , wherein said inorganic solid comprises oxides of elements of groups 2-14 of the Periodic Table.8. The catalyst support according to claim 7 , wherein said inorganic solid comprises SiO.9. The catalyst support according to claim 1 , wherein said at least one acid group is sulfonic acid claim 1 , phosphonic acid claim 1 , carboxylic acid claim 1 , dicarboxylic acid claim 1 , or a mixture thereof.10. The catalyst support according to claim 1 , wherein said at least one halogen atom is fluoride claim 1 , chloride claim 1 , bromide claim 1 , iodide claim 1 , or a mixture thereof.11. A supported catalyst comprising (i) a catalyst and (ii) the catalyst support according to .12. The ...

CATALYSTS AND RELATED METHODS FOR PHOTOCATALYTIC PRODUCTION OF H2O2 AND THERMOCATALYTIC REACTANT OXIDATION

Catalysts, catalytic systems and related synthetic methods for in situ production of HOand use thereof in reaction with oxidizable substrates. 134-. (canceled)36. The method of claim 35 , wherein the proton donor is an alcohol.37. The method of claim 35 , wherein the proton donor is a linear alkene.38. The method of claim 35 , wherein the transition metal moieties comprise V claim 35 , Ti claim 35 , Cr claim 35 , Mn claim 35 , Co claim 35 , Cu claim 35 , Zn claim 35 , Mo claim 35 , Nb claim 35 , Ta claim 35 , W claim 35 , Os claim 35 , Re claim 35 , Ir claim 35 , Sn claim 35 , or a combination thereof.39. The method of claim 35 , wherein the transition metal moieties comprise Ti.40. The method of claim 39 , wherein the alkene is propylene claim 39 , and the oxidation product is propylene oxide.41. The method of claim 36 , wherein the alcohol is isopropanol.42. The method of claim 41 , wherein the photocatalytic oxidation of the isopropanol produces acetone.43. The method of claim 42 , further comprising hydrogenating the acetone to regenerate the isopropanol.44. The method of claim 35 , wherein the oxidation reaction is an epoxidation reaction.45. The method of claim 44 , wherein the alkene is a cycloalkene.46. The method of claim 45 , wherein the cycloalkene is cyclooctene.47. The method of claim 45 , wherein the proton donor is an alcohol48. The method of claim 35 , wherein the irradiation is intermittent. The present application is a divisional of U.S. patent application Ser. No. 15/073,892 filed Mar. 18, 2016, the entire contents of which are hereby incorporated herein by reference; which claims priority to U.S. provisional patent application No. 62/136,073, filed on Mar. 20, 2015, the entire contents of which are hereby incorporated herein by reference.This invention was made with government support under DE-SC0006718 awarded by the Department of Energy. The government has certain rights in the invention.Approximately 3.5 million metric tons of hydrogen ...

Immiscible composite catalyst for synthesis of hydrogen peroxide and methods for synthesizing of hydrogen peroxide using the same

A catalyst for synthesizing hydrogen peroxide is provided. The catalyst includes first material capable of dissociating hydrogen molecules; and second material capable of suppressing dissociation of oxygen molecules, where one or more interfaces are formed between the first material and the second material. The catalyst can be used as an alternative to the expensive palladium catalysts. In particular, the catalyst can be used for the direct synthesis of hydrogen peroxide.

Electrochemical reactor and process

The electrochemical reactors disclosed herein provide novel oxidation and reduction chemistries and employ increased mass transport rates of materials to and from the surfaces of electrodes therein.

PROCESS FOR MANUFACTURING AN AQUEOUS HYDROGEN PEROXIDE SOLUTION

A process for manufacturing an aqueous hydrogen peroxide solution comprising the following steps:—hydrogenating a working solution which comprises an alkylanthraquinone and/or tetrahydroalkylanthraquinone and a mixture of a non-polar organic solvent and a polar organic solvent;—oxidizing the hydrogenated working solution to produce hydrogen peroxide; and—isolating the hydrogen peroxide, wherein the polar organic solvent is 5-methyl-2-isopropylcyclohexanecarbonitrile (C11F). 114.-. (canceled)15. A process for manufacturing an aqueous hydrogen peroxide solution comprising the following steps:hydrogenating a working solution which comprises an alkylanthraquinone and/or tetrahydroalkylanthraquinone and a mixture of a non-polar organic solvent and a polar organic solvent;oxidizing the hydrogenated working solution to produce hydrogen peroxide; andisolating the hydrogen peroxide, wherein the polar organic solvent is 5-methyl-2-isopropylcyclohexanecarbonitrile (C11F).16. The process according to claim 15 , said process having a production capacity of hydrogen peroxide of up to 100 kilo tons per year.17. The process according to claim 15 , said process being operated in a plant located at an industrial end user site.18. The process according to claim 15 , wherein the C11F has been obtained by reaction of menthol with mesyl or tosyl chloride followed by cyanation.191. The process according to claim 15 , wherein the C11F has been obtained by reaction of menthol with phosphorus tribromide (PBr3) claim 15 , phosphorus trichloride (PCl3) claim 15 , phosphorus triiodide (PI3) claim 15 , potassium iodide (KI) with acid catalysis claim 15 , thionyl chloride (SOC2) or thionyl bromide (SOBr2) claim 15 , followed by cyanation.20. The process according to claim 15 , wherein the C11F has been obtained by an esterification reaction of menthol with an anhydride claim 15 , an acid or an acyl chloride said anhydride claim 15 , acid or acyl chloride bearing a trifluoromethyl group claim 15 , ...

METHOD FOR PRODUCING HYDROGEN PEROXIDE

An object of the present invention is to provide a method by which hydrogen peroxide can be produced at a satisfactory level from an industrial and economical viewpoint without causing the load of purification to be large and without needing too large facilities for production. The present invention is directed to a method for producing hydrogen peroxide, which comprises reacting hydrogen and oxygen in a reaction medium in the presence of a noble metal catalyst and a radical scavenger. 1. A method for producing hydrogen peroxide , comprising reacting hydrogen and oxygen in a reaction medium in the presence of a noble metal catalyst and a radical scavenger.2. The method according to claim 1 , wherein the radical scavenger is a nitrone compound claim 1 , a nitroso compound claim 1 , a dithiocarbamate derivative claim 1 , or an ascorbic acid derivative.4. The method according to claim 3 , wherein claim 3 , in formula (1) claim 3 , Rand Rare methyl groups claim 3 , and Rand Rare each independently a methyl group claim 3 , hydrogen claim 3 , a 2-oxo-1-pyridylmethyl group claim 3 , or an amino group claim 3 ,{'sub': 5', '6', '10, 'in formula (2), Ris a methyl group, an ethyl group, an isopropyl group, a n-propyl group, a cyclopropyl group, a n-butyl group, a sec-butyl group, a tert-butyl group, or a cyclobutyl group, and Rto Rare hydrogen,'}{'sub': 11', '12', '15, 'in formula (3), Ris a tert-butyl group, and Rto Rare hydrogen,'}{'sub': '16', 'in formula (4), Ris a tert-butyl group, a 3,5-dibromo- 1-sulfophenyl group, or a 2,3,5,6-tetramethylphenyl group; and'}{'sub': 17', '18, 'in formula (5), each of Rand Ris independently a methyl group, an ethyl group, or a carboxymethyl group, and X′ is a sodium ion.'}5. The method according to claim 1 , wherein the radical scavenger is 5 claim 1 ,5-dimethyl-1-pyrroline N-oxide or N-tert-butyl-α-phenylnitrone.6. The method according to claim 1 , wherein an amount of the radical scavenger is from 0.01 to 0.05 part by weight claim 1 , ...

DEVICE, SYSTEM, AND METHOD FOR PRODUCING ADVANCED OXIDATION PRODUCTS

The present invention relates generally to an advanced oxidation process for providing advanced oxidation products to an environment. More particularly, the present invention provides a device, system, and method utilizing an advanced oxidation process to react with and neutralize compounds in an environment, including microbes, odor causing chemicals, and other organic and inorganic chemicals. The device, system, and method of the present invention employ a wick structure to collect and concentrate water vapor, so that the water vapor may subsequently be used to generate advanced oxidation products. 1. An apparatus for generating advanced oxidation products comprising:a wick structure comprising a porous base material and having an interior surface and an exterior surface;at least one high frequency ultrasonic emitter targeted to the interior surface of the wick structure;a light source; anda chamber wherein the formation of advanced oxidation products occurs disposed adjacent to the interior surface of the wick structure.2. The apparatus for generating advanced oxidation products of claim 1 , further comprising a gas inlet configured to flow gas along at least one of the interior surface and the exterior surface of the wick structure.3. The apparatus for generating advanced oxidation products of claim 2 , wherein the gas is air.4. The apparatus for generating advanced oxidation products of claim 1 , wherein ultra-sonic energy produced by the ultrasonic emitter is targeted to the interior surface of the wick structure by one or more digital reflectors.5. The apparatus for generating advanced oxidation products of claim 4 , wherein the one or more digital reflectors are planar or conical in structure.6. The apparatus for generating advanced oxidation products of claim 4 , wherein the digital reflectors comprise a plurality of planar convex reflectors that are configured to reflect and disperse the ultrasonic energy onto targeted points or surfaces of the interior ...

METHOD OF PREPARING CATALYST HAVING Pt-Pd DISPERSED POLYMER ELECTROLYTE MULTILAYERS TREATED WITH SULFURIC ACID

Disclosed herein is a method of preparing a catalyst having Pt—Pd dispersed in polymer electrolyte multilayers, suitable for use in production of hydrogen peroxide, wherein the use of the catalyst prepared by forming polymer electrolyte multilayers on an anionic resin support and performing sulfuric acid treatment and loading (insertion or attachment) of Pt—Pd particles can result in high hydrogen conversion, hydrogen selectivity and hydrogen peroxide yield for a long period of time.

CATALYTIC WATER TREATMENT WITH IN-SITU PRODUCTION OF HYDROGEN PEROXIDE

This application relates to a water treatment process. The process comprises contacting contaminated water with a catalyst, introducing hydrogen and an oxygen-containing gas into the contaminated water, and reacting hydrogen and oxygen in the presence of the catalyst and the contaminated water. 1. A water treatment process comprising:contacting contaminated water with a catalyst,introducing hydrogen and an oxygen-containing gas into the contaminated water, andreacting hydrogen and oxygen in the presence of the catalyst and the contaminated water.2. A process as claimed in claim 1 , wherein the reaction of hydrogen and oxygen in the presence of the catalyst and contaminated water generates radical species that react with contaminants in the water.3. A process as claimed in claim 2 , wherein the radical species include hydrogen radicals.4. A process as claimed in any one of the preceding claims claim 2 , wherein catalyst comprises a transition metal is selected from at least one of palladium claim 2 , gold and platinum.5. A process as claim 4 , wherein the catalyst comprises palladium and gold or palladium and tin.6. A process as claimed in any one of the preceding claims claim 4 , wherein the catalyst is supported on a particulate support.76. A process as claimed in claim 4 , wherein the support is an oxide support.8. A process as claimed in any one of the preceding claims claim 4 , wherein the hydrogen and/or oxygen-containing gas are introduced into the contaminated water at a pressure of 0.1 to 1 MPa.9. A process as claimed in any one of the preceding claims claim 4 , wherein the oxygen-containing gas is selected from oxygen and air.10. A process as claimed in any one of the preceding claims claim 4 , wherein the hydrogen and/or oxygen is produced by electrolysis upstream of the reactor.11. A process as claimed in any one of the preceding claims claim 4 , wherein the contaminated water is introduced into a reactor containing the catalyst claim 4 , and hydrogen and ...

Catalyst for H202 synthesis and method for preparing such catalyst

A catalyst comprising at least one catalytically active metal selected from the group consisting of elements of Groups 7 to 11, wherein the catalytically active metal is supported on a support material being grafted with acid groups other than OH groups, wherein a metal is in the bulk of the support material, and wherein the catalytically active metal is different from the metal of the support material. A method for preparing such catalyst and the use of such catalyst for catalyzing reactions. 1. A catalyst comprising at least one catalytically active metal selected from the group consisting of elements of Groups 7 to 11 , wherein the catalytically active metal is supported on a support material being grafted with acid groups other than OH groups , wherein a metal is in the bulk of said support material , wherein the catalytically active metal is different from the metal of the support material , wherein in said catalyst when fresh , between 1% and 70% of the catalytically active metal , based on the total amount of the catalytically active metal present , is present in reduced form as determined by XPS.2. The catalyst according to claim 1 , wherein the catalytically active metal is selected from the group consisting of palladium claim 1 , platinum claim 1 , silver claim 1 , gold claim 1 , rhodium claim 1 , iridium claim 1 , ruthenium claim 1 , osmium claim 1 , and combinations thereof.3. The catalyst according to claim 2 , wherein the catalytically active metal is palladium or a combination of palladium with another metal.4. The catalyst according to claim 1 , wherein in said catalyst when fresh claim 1 , between 10% and 40% of the catalytically active metal claim 1 , based on the total amount of the catalytically active metal present claim 1 , is present in reduced form.5. The catalyst according to claim 1 , wherein the amount of the catalytically active metal is from 0.001% to 10% by weight calculated as catalytically active metal in reduced form and based on the ...

A CATALYST FOR DIRECT SYNTHESIS OF HYDROGEN PEROXIDE, ITS PREPARATION AND USE

A catalyst comprising a platinum group metal (group 10) supported on a carrier, said carrier comprising a silica core and a precipitate layer of comprising a metal oxide, sulfate or phosphate on said core; said catalyst also comprising a rhodium group metal (group 9) supported on said carrier. 1. A catalyst comprising an amount of Pd supported on a carrier , said carrier comprising a silica core and a precipitate layer comprising a metal oxide , sulfate or phosphate on said core; said catalyst further comprising Rh supported on said carrier in an amount of from 1% to 50% of the amount of Pd.2. The catalyst according to claim 1 , wherein the metal oxide is selected from the group consisting of Zr oxides claim 1 , Nb oxides claim 1 , Ta oxides claim 1 , Nb phosphate claim 1 , and BaSO4.3. The catalyst according to claim 1 , wherein the metal oxide comprises ZrOor BaSO.4. The catalyst according to claim 3 , wherein the metal oxide comprises BaSO.5. The catalyst according to claim 1 , wherein the amount of Pd supported on the carrier is from 0.001 to 10 wt. %.6. The catalyst according to claim 1 , wherein the amount of Rh supported to the carrier is from 2% to 30% of the amount of Pd.7. The catalyst according to claim 6 , wherein the amount of Rh supported on the carrier is from 5% to 20% of the amount of Pd.8. The catalyst according to claim 1 , wherein Rh and Pd are the only metals of Group 9 and Group 10 of the Periodic Table supported on its carrier.9. A method for manufacturing the catalyst according to claim 1 , comprising impregnating the carrier with Pd and Rh precursors.10. The method according to claims 9 , wherein the precursors comprise an inorganic or organic salt of Pd and an inorganic or organic salt of Rh.11. The method according to claim 10 , wherein the precursors comprise a halide salt of Pd and a halide salt of Rh.12. The method according to claim 1 , wherein Rh and Pd are the only metals of Group 9 and Group 10 of the Periodic Table supported on the ...

Process for producing hydrogen peroxide

A process for manufacturing hydrogen peroxide by an anthraquinone autoxidation process (AO-process) comprising two alternate essential steps of: (a) hydrogenation of a working solution in a hydrogenation unit in the presence of a catalyst, wherein the working solution contains at least one alkylanthraquinone dissolved in at least one organic solvent, to obtain at least one corresponding alkylanthrahydroquinone compound; and (b) oxidation of the at least one alkylanthrahydroquinone compound to obtain hydrogen peroxide in an oxidation unit; and further comprising step (c): extracting the hydrogen peroxide formed in the oxidation step in an extraction unit, wherein the hydrogenation, oxidation and extraction steps are performed in an reactor system which is designed as a compact modular system of a hydrogenation, an oxidation and an extraction unit, and wherein the reactor system is configured to operate without a reversion (regeneration) unit for continuous reversion of the working solution as a small to medium scale AO-process with a production capacity of hydrogen peroxide of up to 20 kilo tons per year, wherein the working solution and/or the catalyst are replaced and/or treated for regeneration or reactivation only intermittently or periodically, e.g., with a low frequency. 1. A process for manufacturing hydrogen peroxide by an anthraquinone autoxidation process (AO-process) , said manufacturing process comprising two alternate essential steps (a) and (b):(a) hydrogenation of a working solution in a hydrogenation unit in the presence of a catalyst, wherein said working solution contains at least one alkylanthraquinone dissolved in at least one organic solvent, to obtain at least one corresponding alkylanthrahydroquinone compound; and(b) oxidation of said at least one alkylanthrahydroquinone compound to obtain hydrogen peroxide in an oxidation unit; andfurther comprising step (c):(c) extracting the hydrogen peroxide formed in the oxidation step in an extraction ...

INTEGRATED PROCESS AND PLANT FOR MAKING STYRENE AND PROPENE OXIDE

An integrated process for making styrene and propene oxide which comprises the steps: 114-. (canceled)15. An integrated process for making styrene and propene oxide , comprising the steps:a) dehydrogenating ethylbenzene in a reaction mixture comprising a dehydrogenation catalyst;b) separating styrene and hydrogen from the reaction mixture of step a);c) producing hydrogen peroxide from hydrogen separated in step b) and oxygen;d) reacting propene with the hydrogen peroxide obtained in step c) in the presence of an epoxidation catalyst to provide a reaction mixture comprising propene oxide; ande) separating propene oxide from the reaction mixture obtained in step d).16. The integrated process of claim 15 , wherein step a) is carried out in the presence of steam; step c) uses a palladium metal catalyst; and step b) comprises removal of carbon monoxide from separated hydrogen.17. The integrated process of claim 16 , wherein carbon monoxide is removed by pressure swing adsorption.18. The integrated process of claim 15 , wherein step c) comprises:c1) hydrogenating a working solution, containing an alkylanthraquinone, an alkyltetrahydroanthraquinone or both, with hydrogen separated in step b) in a hydrogenation reactor in the presence of the palladium metal catalyst to provide a hydrogenated working solution comprising an alkylanthrahydroquinone, an alkyltetrahydroanthrahydroquinone or both;c2) oxidizing hydrogenated working solution obtained in step c1) with an oxygen-containing gas in an oxidation reactor to provide an oxidized working solution comprising hydrogen peroxide and an alkylanthraquinone, an alkyltetrahydroanthraquinone or both;c3) extracting hydrogen peroxide from oxidized working solution obtained in step c2) to provide an aqueous solution of hydrogen peroxide.19. The integrated process of claim 15 , wherein step b) comprises separating nonreacted ethylbenzene from the reaction mixture of step a) and recycling the separated ethylbenzene to step a).20. The ...

Process for producing hydrogen peroxide

A process for manufacturing hydrogen peroxide by an anthraquinone autoxidation process (AO-process) comprising two alternate (essential) steps of: (a) hydrogenation of a working solution in a hydrogenation unit in the presence of a catalyst, wherein such working solution contains at least one alkylanthraquinone dissolved in at least one organic solvent, to obtain at least one corresponding alkylanthrahydroquinone compound; and (b) oxidation of the at least one alkylanthrahydroquinone compound to obtain hydrogen peroxide in an oxidation unit; and further comprising the step of: (c) extracting the hydrogen peroxide formed in the oxidation step in an extraction unit, wherein the units of step (a) to (c), optionally together with further ancillary units as appropriate, constitute a hydrogen peroxide production site, wherein one or more of said units are equipped with one or more sensors for monitoring one or more AO-process parameters at the hydrogen peroxide production site, said sensors being interconnected with one or more first computers at the hydrogen peroxide production site, said first computers being linked via a communication network to one or more second computers in a control room being remote from the hydrogen peroxide production site, and said control room being remotely controlling such hydrogen peroxide production site.

Process for the Manufacture of Hydrogen Peroxide

A continuous process for producing hydrogen peroxide by an anthraquinone process, comprising the steps of: (i) hydrogenating an organic working solution containing one or more anthraquinone derivatives in the presence of a heterogeneous catalyst to form a hydrogenated working solution; (ii) oxidizing the hydrogenated working solution by introducing an oxygen-containing oxidizing gas at an overpressure into an oxidation reactor, and contacting the oxidizing gas with the hydrogenated working solution to form an oxidized working solution, whereby hydrogen peroxide is formed; (iii) withdrawing an oxidation off gas from the oxidation reactor; (iv) recovering the formed hydrogen peroxide from the oxidized working solution; (v) subjecting the oxidation off gas withdrawn from said oxidation reactor, which has an excess pressure over atmospheric pressure, to a demisting treatment to obtain a demisted oxidation off gas; and (vi) feeding the demisted oxidation off gas as propellant gas into a gas ejector to produce a vacuum.

Method and generator for generation of Hydrogen Peroxide

A method and generator for generation of hydrogen peroxide which operate on the principle of conveying air-liquid or vapor flow through a corona discharge zone in air. Such devices can be used for disinfection of air and of various objects for industrial and home uses.

Purified Hydrogen Peroxide Gas Generation Methods and Devices

The present disclosure provides for and includes improved devices and methods for the production of Purified Hydrogen Peroxide Gas (PHPG) that is substantially non-hydrated and substantially free of ozone. 1. A device for producing non-hydrated purified hydrogen peroxide gas (PHPG) comprising:a. an enclosure;b. an air distribution mechanism providing an airflow;c. an air-permeable substrate structure that is a mesh between 250 and 750 nm thick having a percentage of open area between 10% and 60%, said mesh having a catalyst on its surface;d. a source of light; andwherein said airflow is through said air-permeable substrate structure; andsaid device produces PHPG and directs it out of said enclosure when in operation.2. The device of claim 1 , wherein said catalyst comprises titanium dioxide and said source of light is a source of ultraviolet light.3. The device of claim 1 , wherein said catalyst comprises tungsten trioxide or a mixture of titanium dioxide and tungsten trioxide and said source of light is visible light with an energy of at least 2.85 electron volts (eV).450.-. (canceled)51. A device for producing non-hydrated purified hydrogen peroxide gas (PHPG) when installed into a heating claim 1 , ventilating claim 1 , and air conditioning (HVAC) system comprising:a. an air-permeable substrate structure that is a mesh between 5 and 750 nm thick having a percentage of open area between 10% and 60%, said mesh having a catalyst on its surface; andb. a source of light;wherein air flows from the HVAC system through said air-permeable substrate structure and said device produces PHPG and directs it away from said air-permeable substrate structure having a catalyst on its surface when in operation and into a heated, ventilated and air conditioned space.52. The device of claim 51 , wherein said catalyst comprises titanium dioxide and said source of light is a source of ultraviolet light.53. The device of claim 51 , wherein said catalysts comprises tungsten trioxide or a ...

Electrochemical reactor and process

The electrochemical reactors disclosed herein provide novel oxidation and reduction chemistries and employ in-creased mass transport rates of materials to and from the surfaces of electrodes

A process for manufacturing a purified aqueous hydrogen peroxide solution

The present invention relates to an improved process for manufacturing a purified aqueous hydrogen peroxide solution. The invention further relates to a plant for producing hydrogen peroxide in which the improved process for manufacturing a purified aqueous hydrogen peroxide solution according to the present invention is employed.

Catalyst for direct synthesis of hydrogen peroxide

A catalyst comprising: a platinum group metal, silver or gold, and a carrier containing niobium or tantalum oxide or niobium or tantalum phosphate, and an oxide other than niobium or tantalum oxide, as well as its use in production of hydrogen peroxide. A process for producing hydrogen peroxide, comprising reacting hydrogen and oxygen in the presence of such catalyst in a reactor, and a process for producing such catalyst. 1. A catalyst comprising:at least one catalytically active metal selected from the group consisting of a platinum group metal, silver, gold, and a mixture thereof, anda carrier containing niobium oxide, tantalum oxide, niobium phosphate, or tantalum phosphate,wherein the carrier contains at least 65 wt. % of an oxide other than niobium oxide or tantalum oxide, based on the total weight of said oxides or based on the total weight of said oxide other than niobium oxide or tantalum oxide and said niobium phosphate or tantalum phosphate, andwherein said niobium oxide, tantalum oxide, niobium phosphate, or tantalum phosphate is precipitated onto said oxide other than niobium oxide or tantalum oxide.2. The catalyst according to claim 1 , wherein said catalytically active metal is a platinum group metal.3. The catalyst according to claim 1 , wherein said carrier contains from 60 to 95 wt. % of said oxide other than niobium oxide or tantalum oxide.4. The catalyst according to claim 1 , wherein said oxide other than niobium oxide or tantalum oxide is selected from the group consisting of silica claim 1 , alumina claim 1 , titanium oxide claim 1 , barium oxide claim 1 , zirconium oxide claim 1 , and mixtures thereof.5. The catalyst according to claim 4 , wherein said oxide other than niobium oxide or tantalum oxide comprises silica.6. The catalyst according to claim 1 , wherein said platinum group metal claim 1 , silver claim 1 , gold or mixture thereof is present in an amount of from 0.001 to 10 wt. % claim 1 , each based on the weight of said carrier.7. ...

CATALYST, CATALYST COMPOSITION CONTAINING PT-NI ALLOY AND METHODS FOR SYNTHESIZING OF HYDROGEN PEROXIDE USING THEM

A catalyst and a catalyst composition, a method for preparing thereof, and a method for synthesizing of hydrogen peroxide using them are provided. The catalyst and the catalyst composition contains: an alloy of two elements, wherein the elements are Pt (Platinum) and Ni (Nickel). The present disclosure enables (a) replacing a high-priced palladium (Pd) catalyst with a new catalyst, (b) providing a high-active catalyst which catalyzes the direct synthesis reaction of the hydrogen peroxide. 1. A catalyst , containing: an alloy of two elements , wherein the elements are Pt (Platinum) and Ni (Nickel).2. The catalyst of claim 1 , wherein the alloy forms solid solution.3. The catalyst of claim 1 , wherein the alloy has a face-centered tetragonal structure.4. The catalyst of claim 1 , wherein the alloy catalyzes direct synthesis reaction of hydrogen peroxide (HO).5. The catalyst of claim 1 , wherein a molecular formula of the alloy is represented as PtNi claim 1 , and wherein the X satisfies no less than 1 and no more than 83.6. The catalyst of claim 1 , wherein a molecular formula of the alloy is represented as PtNi claim 1 , and wherein the X satisfies no less than 6 and no more than 83.7. The catalyst of claim 6 , wherein the Pt—Ni catalyst has 40% or more of a degree of activity of Pdcatalyst in the course of direct synthesis reaction of hydrogen peroxide.8. The catalyst of claim 1 , wherein a structure of the Pt—Ni catalyst is similar to that of a Palladium (Pd) catalyst.9. The catalyst of claim 1 , wherein an electronic structure of the Pt—Ni catalyst is similar to that of a Palladium (Pd) catalyst in that DOS (Electron Density of State) values of the Pt—Ni catalyst are similar to those of the Pd catalyst.10. A catalyst composition claim 1 , containing: an alloy of two elements claim 1 , wherein the elements are Pt (Platinum) and Ni (Nickel).11. The catalyst composition of claim 10 , wherein the alloy forms solid solution.12. The catalyst composition of claim 10 , ...

Purified Hydrogen Peroxide Gas Generation Methods and Devices

The present disclosure provides for and includes improved devices and methods for the production of Purified Hydrogen Peroxide Gas (PHPG) that is substantially non-hydrated and substantially free of ozone. 2. (canceled)3. The device of claim 1 , wherein said airflow comprises an angle of incidence to said substrate structure that is greater than 14°.4. (canceled)5. (canceled)6. (canceled)7. The device of claim 1 , wherein said airflow comprises air having a humidity of at least 5%.8. (canceled)9. (canceled)10. (canceled)11. (canceled)12. (canceled)13. The device of claim 1 , wherein said air-permeable substrate structure is a mesh having a percentage of open area between 10% and 60%.14. (canceled)15. (canceled)16. (canceled)17. (canceled)18. The device of claim 1 , wherein said ultraviolet light illuminates said air-permeable substrate structure with light having an intensity of between 0.1 watts per square inch and 150 watts per square inch at the surface of said substrate.19. (canceled)20. (canceled)21. (canceled)22. (canceled)23. The device of claim 76 , further comprising a filter that blocks ultraviolet light having a wavelength of 188 nm or less.24. (canceled)25. The device of claim 78 , wherein at least 90% of the power of said light is emitted between 340 nm and 380 nm.26. (canceled)27. The device of claim 76 , wherein less than 1% of said light is ultraviolet B radiation having a wavelength of between 280 nm and 315 nm.28. (canceled)29. (canceled)30. The device of claim 1 , further comprising one or more filters to remove one or more contaminants from said airflow prior to flowing through said air-permeable substrate structure selected from the group consisting of nitrogen oxide (NOx) claim 1 , sulfur oxide (Sox) claim 1 , volatile organic molecules (VOM) claim 1 , household dust claim 1 , pollen claim 1 , dust-mite debris claim 1 , mold spores claim 1 , pet dander claim 1 , smoke claim 1 , smog claim 1 , and bacteria.31. (canceled)32. (canceled)33. ( ...

METHOD FOR REGENERATING WORKING SOLUTION USED FOR PRODUCTION OF HYDROGEN PEROXIDE AND METHOD FOR PRODUCING HYDROGEN PEROXIDE USING REGENERATED WORKING SOLUTION

In the production of hydrogen peroxide, when ketone forms are increased upon conversion from higher alcohol components in organic solvents, such increased levels of ketone forms reduce the water content in a working solution and lead to deterioration of catalytic activity. Moreover, increased levels of ketone forms reduce the solubility of anthrahydroquinone compounds and may cause an obstacle to stable and safe operation in the production of hydrogen peroxide due to crystallization and deposition of the anthrahydroquinone compounds. 1. A process for regeneration of a working solution provided for continuous use in the production of hydrogen peroxide via the anthraquinone process , the process comprisingdistilling the working solution to separate organic solvent components containing an alcohol and the ketone form of the alcohol; andsubjecting resulting organic solvent components to hydrogenation treatment in the presence of a metal catalyst to regenerate the ketone form back into the original alcohol.2. The process according to claim 1 , wherein as a result of hydrogenation treatment of the organic solvent components in the presence of a metal catalyst claim 1 , a remaining percentage of the ketone form in the organic solvent components (=ketone form/organic solvent components×100) is 10% by mass or less.3. The process according to claim 1 , wherein the metal catalyst is a metal compound comprising at least one selected from the group consisting of palladium claim 1 , rhodium claim 1 , ruthenium claim 1 , platinum claim 1 , copper and chromium.4. The process according to claim 1 , wherein the metal catalyst is a metal compound comprising copperchromium claim 1 , or both.5. The process lution according to claim 1 , wherein the amount of the metal catalyst added is 0.05% by mass to 10% by mass relative to the mass of the organic solvent components.6. The process according to claim 1 , wherein pressure for the hydrogenation treatment is atmospheric pressure to 10 MPa. ...

CATALYST FOR SYNTHESIS OF HYDROGEN PEROXIDE AND SYNTHESIS OF HYDROGEN PEROXIDE USING SAME

Provided is a catalyst for synthesizing hydrogen peroxide as represented by the following Chemical Formula 1: 1. A catalyst for synthesizing hydrogen peroxide , the catalyst represented by Chemical Formula 1 provided below:{'br': None, 'sub': x', '(1-x), 'RhAg,\u2003\u2003[Chemical Formula 1]'}where 0 Подробнее

Catalyst for direct synthesis of hydrogen peroxide comprising zirconium oxide

A catalyst comprising: a platinum group metal, silver, gold, or a mixture thereof, and a carrier containing an oxide other than zirconium oxide and a precipitate layer of zirconium oxide onto the oxide other than zirconium oxide, as well as their uses in production of hydrogen peroxide. A process for producing hydrogen peroxide, comprising reacting hydrogen and oxygen in the presence of such catalyst in a reactor, and a process for producing such catalyst. 1. A catalyst comprising at least one metal selected from the group consisting of a platinum group metal , silver , gold , and any mixture thereof , and a carrier containing an oxide other than zirconium oxide and a precipitate layer of zirconium oxide onto said oxide other than zirconium oxide.2. The catalyst according to claim 1 , wherein said catalyst comprises a platinum group metal selected from the group consisting of ruthenium claim 1 , rhodium claim 1 , palladium claim 1 , osmium claim 1 , iridium claim 1 , and platinum.3. The catalyst according to claim 1 , wherein said catalyst comprises palladium or a combination of palladium with another metal.4. The catalyst according to claim 1 , wherein said carrier contains from 30 to 99 wt. % of the oxide other than zirconium oxide claim 1 , based on the total weight of the oxides.5. The catalyst according to claim 1 , wherein said oxide other than zirconium oxide is selected from the group consisting of silica claim 1 , alumina claim 1 , niobium oxide claim 1 , titanium oxide claim 1 , barium oxide claim 1 , and mixtures thereof.6. The catalyst according to claim 4 , wherein said oxide other than zirconium oxide comprises silica.7. The catalyst according to claim 1 , wherein said platinum group metal claim 1 , silver claim 1 , gold claim 1 , or a mixture thereof is present in an amount of from 0.001 to 10 wt. % claim 1 , each based on the weight of the carrier.8. The catalyst according to claim 1 , being obtainable by depositing the metal selected from the group ...

PREPARATION OF 2,6- AND 2,7-DISUBSTITUTED ANTHRAQUINONE DERIVATIVES

The present invention relates to novel anthraquinone derivatives, 2,6-diisohexylanthracene-9,10-dione and 2,7-diisohexyl-anthracene-9,10-dione, preferably to be used for the preparation of hydrogen peroxide, and to a process for the preparation of these anthraquinone derivatives. 4. The composition of claim 3 , wherein at least 90 weight % of the composition consist of the compounds of formula (Ia) and formula (Ib).5. The composition of claim 3 , wherein a molar ratio of the compound of formula (Ia) relative to the compound of formula (Ib) is in a range of from 0.2:1 to 5:1.6. The composition of claim 3 , having a solubility of at least 1.0 mol/l in a solvent mixture of which at least 99.9 weight-% consist of ortho-xylene and diisobutyl carbinol with a molar ratio of the ortho-xylene relative to the diisobutyl carbinol in a range of from 0.99:1 to 1.01:1 claim 3 , wherein said solubility refers to a molar amount of the compound of formula (Ia) plus a molar amount of the compound of formula (Ib) dissolved in 1 l of the solvent mixture at a temperature of from 20 to 23° C. and at a pressure of from 0.9 to 1.1 bar.7. The composition of claim 3 , wherein at least 90 weight % of the compound of formula (Ia) and at least 96 weight % of the compound of formula (Ib) are present in solid form.8. The composition of claim 3 , being at least partially dissolved in a solvent.12. The process of claim 11 , wherein the reacting (b) is carried out in a solvent.13. The process of claim 11 , further comprising: after (b) and prior to (c) claim 11 ,(b′) separating the compounds of formula (Va) and/or formula (Vb) from the mixture obtained in (b), thereby obtaining a mixture comprising the compounds of formula (Va) and/or formula (Vb).14. The process of claim 11 , wherein prior to (c) claim 11 , the compounds of formula (Va) and/or formula (Vb) are not separated from the mixture obtained in (b).15. The process of claim 11 , wherein the oxidation reaction in (c) is carried out in a ...

METAL COMPLEX AND METHOD FOR PRODUCING HYDROGEN PEROXIDE

An object of the present invention is to provide a novel method for producing hydrogen peroxide by direct synthesis that is capable of taking the place of the conventional anthraquinone process, and to provide a catalyst used in the production method. 2: The metal complex according to claim 1 , wherein the number of carbon atoms of the alkyl group is 1 to 4 claim 1 , the number of carbon atoms of the aralkyl group is 7 to 10 claim 1 , the number of carbon atoms of the aryl group is 6 to 9 claim 1 , the number of carbon atoms of the alkoxy group is 1 to 4 claim 1 , the number of carbon atoms of the aralkyloxy group is 7 to 10 claim 1 , and the number of carbon atoms of the aryloxy group is 6 to 9.3: The metal complex according to claim 1 , represented by the formula (1) claim 1 , wherein R claim 1 , R claim 1 , R claim 1 , R claim 1 , R claim 1 , Rand Rrepresent hydrogen atoms claim 1 , Rand Rrepresent methyl groups claim 1 , one of X claim 1 , Y and Z represents OH claim 1 , the remaining two represent HO claim 1 , and An1 represents a nitrate ion.4: The metal complex according to claim 1 , represented by the formula (2) claim 1 , wherein R claim 1 , R claim 1 , R claim 1 , R claim 1 , R claim 1 , Rand Rrepresent hydrogen atoms claim 1 , Rand Rrepresent methyl groups claim 1 , Y represents HO and An2 represents a nitrate ion.5: The metal complex according to claim 1 , represented by the formula (3) claim 1 , wherein R claim 1 , R claim 1 , R claim 1 , R claim 1 , R claim 1 , Rand Rrepresent hydrogen atoms claim 1 , Rand Rrepresent methyl groups claim 1 , Y represents HO and An3 represents a nitrate ion.6: The metal complex according to claim 1 , represented by the formula (4) claim 1 , wherein R claim 1 , R claim 1 , R claim 1 , R claim 1 , R claim 1 , Rand Rrepresent hydrogen atoms claim 1 , Rand Rrepresent methyl groups claim 1 , X and Y represent HO and An4 represents a nitrate ion.8: The metal complex according to claim 1 , represented by the formula (1).9: The ...

RECOVERY OF AQUEOUS HYDROGEN PEROXIDE IN AUTO-OXIDATION H202 PRODUCTION

Hydrogen peroxide produced in an auto-oxidation process is recovered from HO—containing organic solution via liquid-liquid extraction with an aqueous medium in a device having elongated channels, with a small cross-sectional dimension, that facilitate efficient extraction of aqueous hydrogen peroxide from the organic solution. 1. A method for the recovery of hydrogen peroxide produced in an auto-oxidation process comprising contacting a HO-containing organic solution in an auto-oxidation process with an aqueous extraction medium in a device with elongated channels having at least one cross sectional dimension within the range of from about 5 microns to about 5 mm , to effect liquid-liquid extraction of hydrogen peroxide from the organic solution into the aqueous medium , and thereafter separating the aqueous medium containing extracted hydrogen peroxide from the HO-depleted organic solution to obtain a HO-containing aqueous solution.2. The method of wherein the channeled device has at least one cross sectional dimension within the range of from about 50 microns to about 3 mm.3. The method of wherein the channeled device contains at least one inlet connecting one or more channels and an outlet connecting the channels claim 1 , for respectively introducing the organic solution and aqueous medium into the extraction device and for removing a two phase liquid mixture from the extraction device.4. The method of wherein the channeled device further contains at least one additional passageway adjacent to at least one extraction channel for effecting heat transfer and temperature control during the extraction process using a heat transfer fluid in said at least one additional passageway.5. The method of wherein the channeled device comprises layered sheets that contain an interconnected channel network.6. The method of wherein the separation of the aqueous medium containing extracted hydrogen peroxide from the HO-depleted organic solution is carried out in a liquid-liquid ...

METHOD AND DEVICE FOR CARRYING OUT A REACTION BETWEEN AT LEAST TWO REACTANTS

A method for carrying out a reaction between at least two reactants in a liquid reaction solution in at least one reaction zone so as to produce a reaction product includes carrying out a reaction continuously in a reaction flow for the at least one reaction zone in an extension of the at least one reaction zone as far as at least one reaction product outlet, introducing each of the at least two reactants over the extension of the at least one reaction zone via inlets in which the reaction flow is introduced, and removing the reaction product via the at least one reaction product outlet. 1. A method for carrying out a reaction between at least two reactants in a liquid reaction solution in at least one reaction zone so as to produce a reaction product , the method comprising:a) carrying out the reaction continuously in a reaction flow for the at least one reaction zone in an extension of the at least one reaction zone as far as at least one reaction product outlet;b) introducing each of the at least two reactants over the extension of the at least one reaction zone via inlets in which the reaction flow is introduced; andc) removing the reaction product via the at least one reaction product outlet;wherein the at least two reactants are gaseous,wherein the inlets are spanned by sieve elements or membranes, andwherein the reactants are introduced in series and in an alternating manner into the reaction flow at each of the at least two inlets over the extension of the at least one reaction zone until saturation in the reaction solution is reached.2. The method according to claim 1 , wherein one of the at least two reactants is hydrogen and another of at least two reactants is oxygen claim 1 , andwherein the reaction product is hydrogen peroxide.3. The method according to claim 1 , wherein at least one catalyst material is dissolved or suspended in at least one of the reactants.4. A device for carrying out a continuous reaction between at least two reactants in a liquid ...

APPARATUS FOR GENERATING HYDROGEN PEROXIDE

An apparatus for the production of hydrogen peroxide. The apparatus can have a substrate consisting of a substantially triboelectrically neutral material, a catalyst disposed upon the substrate, and an energy source to provide energy for ambient oxygen and water vapor to react and form hydrogen peroxide. The apparatus does not produce any ozone as a byproduct. The apparatus produces pure hydrogen peroxide gas which is not insulated by water molecules. Further the hydrogen peroxide gas is self-regulating to a concentration of 0.02 parts per million even when continuously produced by the apparatus. 1. An apparatus for the production of hydrogen peroxide from ambient air comprising:a) a substrate consisting of a substantially triboelectrically neutral material;b) a catalyst disposed upon the substrate; andc) an energy source proximate the substrate and the catalyst; andwherein the catalyst aids oxygen and water vapor in ambient air to form hydrogen peroxide without generating ozone as a byproduct.2. The apparatus of claim 1 , wherein the substrate consists of:a) wool;b) a steel;c) cotton;d) paper;e) wood;f) aluminum;g) a fiberglass;h) a composite; ori) combinations thereof.3. The apparatus of claim 1 , wherein the substrate has a triboelectric affinity from −30 nC/J to 30 nC/J.4. The apparatus of claim 1 , wherein the substrate comprises projections or holes to maximize the surface area of the catalyst exposed to air.5. The apparatus of claim 1 , wherein the substrate is a three-dimensional shape encompassing a volume of air.6. The apparatus of claim 1 , wherein the substrate has a thermal conductivity of less than 1 W/Mk.7. The apparatus of claim 1 , further comprising a fan for moving ambient air across the substrate and the catalyst and/or for moving hydrogen peroxide away from the substrate and the catalyst.8. The apparatus of claim 1 , wherein the catalyst comprises:a) titanium;b) silver;c) rhodium; ord) copper.9. The apparatus of claim 1 , wherein the energy ...

Catalysts and Related Methods for Photocatalytic Production of H2O2 and Thermocatalytic Reactant Oxidation

Catalysts, catalytic systems and related synthetic methods for in situ production of HOand use thereof in reaction with oxidizable substrates. 1. A catalytic system comprising:{'sub': 2', '2', '2', '2', '2', '2, 'a photocatalyst for production of HOfrom Oand a proton donor component, said photocatalyst comprising a particulate TiOcore component and a SiOshell component coupled to said core component, said photocatalyst comprising TiOsurface areas;'}{'sub': '2', 'a thermocatalyst for reactant oxidation, said thermocatalyst adjacent to said photocatalyst and comprising a SiOcomponent and a transition metal moiety coupled thereto;'}{'sub': '2', 'a reaction medium comprising O, a proton donor component and an oxidizable reactant component; and'}{'sub': 2', '2, 'ultra-violet radiation introduced to said reaction medium for a time and at a wavelength sufficient to produce HOand oxidize said reactant component therewith.'}2. The system of wherein said proton donor component is selected from alcohols.3. The system of wherein said oxidizable reactant component is selected from alkenes.4. The system of wherein said transition metal moiety is selected from V claim 1 , Ti claim 1 , Cr claim 1 , Mn claim 1 , Co claim 1 , Cu claim 1 , Zn claim 1 , Mo claim 1 , Nb claim 1 , Ta claim 1 , W claim 1 , Os claim 1 , Re claim 1 , Ir claim 1 , and Sn moieties.5. The system of wherein said transition metal moiety is Ti.6. The system of wherein said alkene is propylene.7. The system of wherein said photocatalyst and said thermocatalyst are provided on said TiOcore component claim 1 , said transition metal moiety coupled to said SiOshell component.8. The system of wherein said transition metal is Ti and said oxidizable reactant is propylene.9. The system of wherein said alcohol is isopropanol.10. The system of wherein acetone is a by-product of said HOproduction.11. The system of comprising a hydrogenation catalyst to reduce said acetone and regenerate said isopropanol.12. A composition ...

CORE-SHELL NANOPARTICLE, METHOD FOR MANUFACTURING SAME AND METHOD FOR PRODUCING HYDROGEN PEROXIDE USING SAME

This invention relates to core-shell nanoparticles having acid sites, a method of manufacturing the same, and a method of directly producing hydrogen peroxide using the same. 1. A core-shell nanoparticle , comprising:a shell including silica and alumina and having an acid site; anda core including a metal nanoparticle surrounded by the shell.2. The core-shell nanoparticle of claim 1 , wherein the shell includes at least one selected from the group consisting of a Lewis acid site and a Bronsted acid site.3. The core-shell nanoparticle of claim 1 , wherein the metal nanoparticle is used in an amount of 0.1 to 30 wt % based on a total weight of the core-shell nanoparticle.4. The core-shell nanoparticle of claim 1 , wherein the metal nanoparticle includes at least one selected from the group consisting of a noble metal claim 1 , a transition metal claim 1 , and an alloy thereof claim 1 , andthe noble metal includes at least one selected from the group consisting of palladium, platinum, gold, silver, rhodium, and rhenium.5. The core-shell nanoparticle of claim 1 , wherein the metal nanoparticle has a size of 1 to 30 nm.6. The core-shell nanoparticle of claim 1 , wherein the silicon and aluminum of the shell are mixed at a molar ratio of 10 to 500:1.7. A method of manufacturing the core-shell nanoparticle of claim 1 , comprising steps of:(1) preparing a metal nanoparticle;(2) dispersing the prepared metal nanoparticle in a dispersion solvent, adding a base solution, and performing stirring;(3) adding the solution stirred in the step (2) with a silica precursor and an alumina precursor, thus forming a shell including silica and alumina on a surface of the metal nanoparticle; and(4) thermally treating the metal nanoparticle having the shell including silica and alumina formed on the surface thereof.8. The method of claim 7 , wherein the dispersion solvent includes at least one selected from the group consisting of an organic solvent and water claim 7 , andthe organic ...

CARBON-BASED CATALYSTS FOR OXYGEN REDUCTION REACTIONS

In some embodiments, the present disclosure pertains to catalysts for mediating oxygen reduction reactions, such as the conversion of oxygen to at least one of HO, HO, O, OH, and combinations thereof. In some embodiments, the present disclosure pertains to methods of utilizing the catalysts to mediate oxygen reduction reactions. In some embodiments, the catalyst includes a carbon source and a dopant associated with the carbon source. In some embodiments, the catalyst has a three-dimensional structure, a density ranging from about 1 mg/cmto about 10 mg/cm, and a surface area ranging from about 100 m/g to about 1,000 m/g. In some embodiments, the carbon source includes graphene nanoribbons, and the dopant includes boron-nitrogen heteroatoms. In some embodiments, the dopant is covalently associated with the edges of the carbon source. Additional embodiments of the present disclosure pertain to methods of making the aforementioned catalysts. 1. A Method of mediating an oxygen reduction reaction , a carbon source; and', 'a dopant associated with the carbon source., 'wherein the method comprises exposing a catalyst to oxygen, wherein the catalyst comprises2. The method of claim 1 , wherein the catalyst further comprises a plurality of active sites for mediating the oxygen reduction reaction.3. The method of claim 1 , wherein the catalyst consists essentially of the carbon source and the dopant.4. The method of claim 1 , wherein the catalyst is substantially free of metals.5. The method of claim 1 , wherein the exposing of the catalyst to oxygen results in conversion of oxygen to at least one of HO claim 1 , HO claim 1 , O claim 1 , OH claim 1 , and combinations thereof.6. The method of claim 1 , wherein the carbon source is selected from the group consisting of carbon nanoribbons claim 1 , graphene nanoribbons claim 1 , functionalized graphene nanoribbons claim 1 , graphene oxide nanoribbons claim 1 , reduced graphene oxide nanoribbons claim 1 , and combinations thereof.7 ...

A Catalyst for Direct Synthesis of Hydrogen Peroxide

The present invention provides a catalyst comprising a platinum group metal (group 10) on a carrier, said carrier comprising a silica core and a precipitate layer of a metal oxide, sulfate or phosphate on said core; said carrier having at least on the surface of the precipitate, a dispersion of an oxide from a metal chosen from W, Mo, Ta and Nb, the metal in said dispersion being different from the metal in the precipitate. The invention also relates to a process for producing hydrogen peroxide, comprising reacting hydrogen and oxygen in the presence of the catalyst according to the invention in a reactor. 1. A catalyst comprising a platinum group metal on a carrier , said carrier comprising a silica core , and a precipitate layer of a metal oxide , sulfate or phosphate on said core; said carrier having at least on the surface of the precipitate layer , a dispersion of an oxide of a metal selected from the group consisting of W , Mo , Ta and Nb , wherein the metal in the dispersion is different from the metal in the precipitate layer.2. The catalyst according to claim 1 , wherein the silica core comprises particles having a mean diameter of from 150 μm to 4 mm.3. The catalyst according to claim 1 , wherein the precipitate layer comprises ZrO.4. The catalyst according to claim 1 , wherein the silica core comprises silica particles and only part of the silica particles are covered by the precipitate layer.5. The catalyst according to claim 1 , wherein the precipitate layer comprises particles claim 1 , generally of substantially spherical shape claim 1 , generally having a mean particle size in the range of 10 nm.6. The catalyst according to claim 1 , wherein the dispersion of metal oxide comprises W oxide.7. The catalyst according to claim 1 , wherein the metal in the precipitate layer is present in an amount claim 1 , expressed in weight of pure metal versus the total weight of the carrier claim 1 , of below 1000 ppm.8. The catalyst according to claim 1 , wherein ...

Method for the direct synthesis of hydrogen peroxide

The present invention relates to a method for the direct synthesis of hydrogen peroxide using a catalyst comprising at least one catalytically active metal selected from elements in Groups 7 to 11, wherein the catalytically active metal is supported on a carrier comprising at least one compound selected from the group consisting of sulfates and phosphates of alkaline-earth metals, wherein said compound is precipitated on the carrier. 1. A method for the direct synthesis of hydrogen peroxide , comprising reacting hydrogen and oxygen in the presence of a catalyst comprising at least one catalytically active metal selected from elements in Groups 7 to 11 , wherein the catalytically active metal is supported on a carrier comprising at least one precipitated compound selected from the group consisting of sulfates and phosphates of alkaline-earth metals.2. The method according to claim 1 , wherein the catalytically active metal is selected from palladium claim 1 , platinum claim 1 , silver claim 1 , gold claim 1 , rhodium claim 1 , iridium claim 1 , ruthenium claim 1 , osmium claim 1 , and combinations thereof.3. The method according to claim 2 , wherein the catalytically active metal is palladium or the combination of palladium with another metal.4. The method according to claim 1 , wherein the catalytically active metal is present at least partly in reduced form.5. The method according to claim 1 , wherein the carrier further comprises an inorganic oxide selected from elements in Groups 2 to 14 as support material.6. The method according to claim 5 , wherein the inorganic oxide is selected from SiO claim 5 , AlO claim 5 , zeolites claim 5 , BO claim 5 , GeO claim 5 , GaO claim 5 , ZrO claim 5 , TiO claim 5 , MgO claim 5 , and mixtures thereof.7. The method according to claim 6 , wherein the inorganic oxide is SiO.8. The catalyst method to claim 1 , wherein the alkaline-earth metal compound is barium sulfate.9. The method according to claim 8 , wherein the barium content ...

Plasma Activated Water

A thermal and non-thermal plasma activated water reactor system is provided that includes a reaction chamber, where the reaction chamber includes a gas inlet, a water inlet, a gas and water outlet, a ground electrode and reaction electrodes, where the water inlet and the water outlet are disposed to form a water vortex in the reaction chamber when water flows there through, where the reaction electrodes include a thermal plasma electrode and a non-thermal plasma electrode, and a plasma activated water reservoir that is disposed to receive the plasma activated water from the reaction chamber and disposed to return the plasma activated water to the reaction chamber.

Systems and methods for processing fluids

A vortex reactor includes a reactor body having first and second ends, with one or more inlet ports coupled to the first end. The reactor is configured to form one or more vortices in a fluid passed into the reactor. The inlet port(s) may be positioned to advance a reactor fluid into the reactor body at an angle tangential to an inner surface of the reactor body, forming a vortex that advances toward the second end along the inner surface of the reactor body. A vortex induction mechanism can be disposed within the reactor to induce or augment a vortex within the reactor. The reactor includes an ultrasound-imparting device configured to generate cavitation bubbles in the reactor fluid. The fluid flow within the reactor concentrates the cavitation bubbles within the vortex, thereby providing beneficial physical and/or chemical effects, while protecting the reactor walls and other reactor components from cavitational erosion.

HYDROGEN PEROXIDE SELECTIVE CATALYSTS, METHODS OF USING THEREOF, AND METHODS OF MAKING THEREOF

Catalysts for selective production of hydrogen peroxide and methods of making and using thereof have been developed. The catalysts include an alloyed or doped metal oxide which permits tuning of the catalytic properties of the catalysts for selection of a desired pathway to a product, such as hydrogen peroxide. The catalysts may be incorporated into electrochemical or photochemical devices. 1. A layered peroxide selective catalyst comprising:(1) at least a first layer on a substrate wherein the at least first layer comprises at least a first metal oxide alloyed or doped with at least one metal selected from the group consisting of manganese, chromium, vanadium, cobalt, oxides thereof, and combinations thereof; and(2) at least a second layer wherein the second layer comprises at least a second metal oxide which is optionally free or substantially free of the least one metal selected from the group consisting of manganese, chromium, vanadium, cobalt, nickel oxides thereof, and combinations thereof.2. The catalyst of claim 1 , wherein the at least first and/or the at least second layers are formed by atomic layer deposition (ALD) and/or by sputtering.3. The catalyst of claim 1 , wherein the catalyst was annealed in air or under an inert atmosphere at a temperature ranging from between about 300 to 700° C. claim 1 , 300 to 600° C. claim 1 , or 300 to 500° C. and for a period of time ranging from between about 0.1 to 3 hours claim 1 , 0.1 to 2 hours claim 1 , or 0.1 to 1 hours.4. The catalyst of claim 1 , wherein the first or the second metal oxide is formed of a metal oxide selected from a titanium dioxide claim 1 , a tin oxide claim 1 , a tungsten oxide claim 1 , or a combination thereof.5. The catalyst of claim 1 , wherein the at least one metal alloyed or doped in the first metal oxide is a metal oxide of manganese claim 1 , chromium claim 1 , vanadium claim 1 , cobalt claim 1 , or a combination thereof.6. The catalyst of claim 1 , wherein the second layer is free or ...

APPARATUS FOR GENERATING HYDROGEN PEROXIDE

An apparatus for the production of hydrogen peroxide. The apparatus can have a substrate consisting of a substantially triboelectrically neutral material, a catalyst disposed upon the substrate, and an energy source to provide energy for ambient oxygen and water vapor to react and form hydrogen peroxide. The apparatus does not produce any ozone as a byproduct. The apparatus produces pure hydrogen peroxide gas which is not insulated by water molecules. Further the hydrogen peroxide gas, due to the fact that it is uninsulated by water molecules, is self-regulating to a concentration of 0.03 parts per million even when continuously produced by the apparatus. 1. An apparatus for the production of hydrogen peroxide from ambient air comprising:a) a substrate consisting of a substantially triboelectrically neutral material;b) a catalyst disposed upon the substrate; andc) an energy source proximate the substrate and the catalyst; andwherein the catalyst aids formation of hydrogen peroxide without generating any ozone as a byproduct, and further wherein the hydrogen peroxide is not insulated by water molecules or generated as an aqueous vapor.2. The apparatus of claim 1 , wherein the substrate consists of:a) wool;b) a steel;c) cotton;d) paper;e) wood;f) aluminum;g) a fiberglass;h) a composite; ori) combinations thereof.3. The apparatus of claim 1 , wherein the substrate has a triboelectric affinity from −30 nC/J to 30 nC/J.4. The apparatus of claim 1 , wherein the substrate comprises projections or holes to maximize the surface area of the catalyst exposed to air.5. The apparatus of claim 1 , wherein the substrate is a three-dimensional shape encompassing a volume of air.6. The apparatus of claim 1 , wherein the substrate has a thermal conductivity of less than 1 W/Mk.7. The apparatus of claim 1 , further comprising a fan for moving ambient air across the substrate and the catalyst and/or for moving the hydrogen peroxide away from the substrate and the catalyst.8. The ...

CATALYST CONTAINING AU-PT ALLOY, METHOD FOR PREPARING THEREOF AND METHODS FOR SYNTHESIZING OF HYDROGEN PEROXIDE USING THE SAME

A catalyst, a method for preparing thereof, and methods for synthesizing of hydrogen peroxide are disclosed. The catalyst contains an alloy of two elements. Herein, the elements are Au(Aurum) and Pt(Platinum). The method for preparing the catalyst containing the Au—Pt alloy, includes steps of: (a) obtaining a first solution by dissolving dispersing agent and reducing agent into a first solvent; and (b) synthesizing the Au—Pt alloy by adding Au precursor and Pt precursor into the first solution. Herein, the step (b) includes steps of: (b-1) obtaining a second solution by dissolving the Au precursor and the Pt precursor into a second solvent; and (b-2) synthesizing the Au—Pt alloy by adding the second solution into the first solution. 1. A catalyst , containing: an alloy of two elements , wherein the elements are Au(Aurum) and Pt(Platinum).2. The catalyst of claim 1 , wherein the alloy forms solid solution.3. The catalyst of claim 1 , wherein the alloy has a face-centered tetragonal structure.4. The catalyst of claim 1 , wherein the alloy catalyzes direct synthesis reaction of hydrogen peroxide(HO).5. The catalyst of claim 1 , wherein a molecular formula of the alloy is represented as AuPt claim 1 , and wherein the X satisfies no less than 22 and no more than 97.6. The catalyst of claim 1 , wherein a molecular formula of the alloy is represented as AuPt claim 1 , and wherein the X satisfies no less than 27 and no more than 97.7. A method for preparing a catalyst containing an Au—Pt alloy claim 1 , comprising steps of:(a) obtaining a first solution by dissolving dispersing agent and reducing agent into a first solvent; and(b) synthesizing the Au—Pt alloy by adding Au precursor and Pt precursor into the first solution.8. The method of claim 7 , wherein the step (b) includes steps of:(b-1) obtaining a second solution by dissolving the Au precursor and the Pt precursor into a second solvent; and(b-2) synthesizing the Au—Pt alloy by adding the second solution into the ...

Fuel-Saving Device

A fuel-saving device includes an oxygen generator adapted for producing oxygen, an air intake component adapted for inhaling air, and a conveyor comprising an output terminal adapted for outputting gas, an oxygen terminal connected with the oxygen generator, an air terminal connected with the air intake component, and a connector connecting the output terminal, the oxygen terminal and the air terminal, so as to allow oxygen from the oxygen generator and air from the air intake component to be mixed and output through the output terminal. 1. A fuel-saving device for a combustion engine , comprising:an oxygen generator configured for producing oxygen;an air intake component, configured for inhaling air, including a filter for filtering an inhaled air;a conveyor, comprisingan output terminal, arranged for outputting gas, including an output pipeline and an output regulator arranged along said output pipeline,an oxygen terminal, connected with said oxygen generator, including an oxygen pipeline and an oxygen regulator arranged along said oxygen pipeline,an air terminal, connected with said air intake component, including an air pipeline and air regulator arranged along said air pipeline; anda connector connecting said output terminal, said oxygen terminal and said air terminal, adapted for allowing oxygen from said oxygen generator and air from said air intake component to be mixed to form a mixed gas and output through said output terminal for supplying to the combustion engine, wherein the mixed gas, the oxygen and the inhaled air passing through said output pipeline, said oxygen pipeline and said air pipeline respectively, while said output regulator, said oxygen regulator and said air regulator checking and controlling flows of the mixed gas, the oxygen and the inhaled air in said output pipeline, said oxygen pipeline and said air pipeline respectively; anda controller which is electrically connected with said output regulator, said oxygen regulator and said air ...

PLANT FOR HYDROGEN PEROXIDE PRODUCTION AND PROCESS USING IT

An autoxidation process for producing hydrogen peroxide may be performed using a plant that includes at least two skid mounted modules selected from: a skid mounted module comprising at least one hydrogenator to hydrogenate an anthraquinone in a working solution; a skid mounted module comprising at least one oxidizer to oxidize the hydrogenated anthraquinone with oxygen to form hydrogen peroxide; optionally a skid mounted module configured to compress air to feed oxygen into the at least one oxidizer of the oxidizer skid, and when said air compressor skid is present, a further skid mounted module configured to recover solvent; a skid mounted module configured to extract the hydrogen peroxide from the working solution; and a skid mounted module comprising at least one means to deliver a hydrogen peroxide solution to a point of use and/or optionally to a storage tank. 117-. (canceled)18. An autoxidation process for producing hydrogen peroxide , which is denoted as an AO-process , the process comprising the use of a plant ,wherein the plant comprises at least two skid mounted modules selected from the group consisting of:a skid mounted module comprising at least one hydrogenator to hydrogenate an anthraquinone in a working solution, denoted as hydrogenation skid 1;a skid mounted module comprising at least one oxidizer to oxidize the hydrogenated anthraquinone with oxygen to form hydrogen peroxide, denoted as oxidizer skid 2;optionally a skid mounted module configured to compress air, denoted as process air compressor skid 3, to feed oxygen into the at least one oxidizer of the oxidizer skid 2, and when said process air compressor skid 3 is present in said plant, a further skid mounted module configured to recover solvent, denoted as solvent recovery unit skid 4, when oxygen from the air is used to feed oxygen into the at least one oxidizer of said oxidizer skid 2;a skid mounted module configured to extract the hydrogen peroxide from the working solution, denoted as ...

Katalysatorbærer og fremgangsmåte for fremstilling derav.

Process and device for separating liquid from a multiphase mixture

Process and device for separating liquid from a multiphase mixture contained in a vessel and comprising solid particles and at least one liquid phase forming together at least one suspension, and a gas phase in which at least part of the mixture is circulated through at least one cross-flow filter located outside the vessel, therefore separating said part of the mixture into a filtered liquid and a concentrate.

Process and device for separating liquid from a multiphase mixture

Process and device for separating liquid from a multiphase mixture contained in a vessel and comprising solid particles and at least one liquid phase forming together at least one suspension, and a gas phase in which at least part of the mixture is circulated through at least one cross-flow filter located outside the vessel, therefore separating said part of the mixture into a filtered liquid and a concentrate.

Patent DE60141404D1

Process for producing hydrogen peroxide

A method using auto-oxidation of an anthraquinone derivative in three successive steps, comprising hydrogenating the working solution (at 1), oxidizing the hydrogenated working solution (at 2), and removing hydrogen peroxide using water (at 3). The hydrogenation step is performed in such a way that a hydrogen peroxide equivalent of around 7.9 g/l is achieved at the inlet of the oxidizer (2), and the oxidation step (b) is performed in such a way that the temperature at the top of the oxidizer (2) is below about 50° C., and preferably around 35°-40° C. The method is useful for producing hydrogen peroxide in situ in a paper pulp bleaching plant.

Processo para produzir um catalisador

Method for producing hydrogen peroxide from hydrogen and oxygen

The invention relates to a method and apparatus for safely producing hydrogen peroxide by injecting dispersed minute bubbles of hydrogen and oxygen into a rapidly flowing liquid medium. The liquid medium can contain either a water-soluble organic compound, a water-insoluble organic compound, a combination of a water-insoluble organic compound with water, liquid carbon dioxide or supercritical carbon dioxide. The minute bubbles are surrounded by the liquid medium of sufficient volume for quench cooling any explosive reaction between the hydrogen and oxygen. The present invention also relates to reactors with internal catalyst structures and reactors that have a circular path, both of which may be used to produced hydrogen peroxide.

Silica microspheres, method of improving attrition resistance and use

High-strength, non-agglomerated uniform porous microspheres of silica produced by spray drying a mixture comprising a colloidal silica sol and an additive selected from ammonium citrate or urea; an attrition resistant catalytic composite consisting essentially of metal crystallites such as palladium, platinum-palladium on said silica microsphere and method for preparing the same; and an improved process for making hydrogen peroxide from the direct combination of hydrogen and oxygen in the presence of said attrition resistant catalytic composite.

Process for the epoxidation of olefins

A continuous process for the epoxidation of olefins with hydrogen peroxide in the presence of a heterogeneous catalyst promoting the epoxidation reaction, whereby the aqueous reaction mixture contains i) an olefin; ii) hydrogen peroxide; iii) less than 100 wppm of alkali metals, earth alkali metals, both irrespective whether in ionic, complex or covalently bonded form, bases or cations of bases having a pk B of less than 4.5, or combinations thereof; and, iv) at least 100 wppm of bases or cations of bases having a pk B of at least 4.5 or combinations thereof, whereby the wppm are based on the total weight of hydrogen peroxide in the reaction mixture.

Aqueous hydrogen peroxide solutions and method of making same

An aqueous hydrogen peroxide solution containing i) less than 50 wppm alkali metals, alkaline earth metals or combinations thereof in total, irrespective whether the alkali or alkaline earth metals are present in cationic or complex form; ii) less than 50 wppm of amines having a pk B of less than 4.5 or the corresponding protonated compounds in total; and iii) at least 100 wppm anions or compounds that can dissociate to form anions in total, where the wppm are based on the weight of hydrogen peroxide and the concentration of hydrogen peroxide is more than 50% by weight based on the total weight of the hydrogen peroxide solution. A process for preparation of said hydrogen peroxide solution and the use of said solution in a process for epoxidation of olefins is also disclosed.

Anthraquinone process

An improved process for producing hydrogen peroxide by the anthraquinone process, utilizing a palladium on calcined support catalyst having high attrition resistance, is provided.

Process for preparing hydrogen peroxide from the elements

The present invention relates to a process for the preparation of hydrogen peroxide from oxygen or oxygen-delivering substances and hydrogen or hydrogen-delivering substances in the presence of at least one catalyst containing a metal-organic framework material, wherein said framework material comprises pores and a metal ion and an at least bidentate organic compound, said bidentate organic compound being coordinately bound to the metal ion. The invention further relates to a novel material consisting of said metal organic framework material wherein the material is brought in contact with at least one additional metal.

Synthesis of hydrogen peroxide

An apparatus and process for producing hydrogen peroxide on an as-needed basis is disclosed. An oxidizing agent is generated for reaction with water to generate hydrogen peroxide.

Synthesis of Hydrogen Peroxide

An apparatus and process for producing hydrogen peroxide on an as-needed basis is disclosed. An oxidizing agent is generated for reaction with water to generate hydrogen peroxide.

Polymer-encapsulated ion-exchange resin

Polymer-encapsulated ion-exchange resins are disclosed. The resins are useful in adsorption, catalysis, and other applications. Catalysts comprising a polymer-encapsulated combination of an ion-exchange resin and a transition metal are also disclosed. The catalysts are useful in hydrogenation, oxidation, hydroformylation, polymerization, and other valuable processes. Certain of the polymer-encapsulated catalysts enhance the productivity in the process for producing hydrogen peroxide from hydrogen and oxygen.

Chemical product and process

The invention concerns a catalyst carrier comprising a fibre paper impregnated with a slurry comprising silica sol, micro fibres and a filler, wherein said micro fibres have an equivalent average particle size, measured with sedigraph method, from about 200 nm to about 30000 nm and said filler has an average equivalent particle size, measured with sedigraph method, from about 300 to about 10000 nm. The invention further concerns a method of its preparation, a slurry useful therefore, a catalyst comprising such a catalyst carrier and use of the catalyst.

Process for the preparation of hydrogen peroxide by direct synthesis

Способ производства пероксида водорода

1. Способ производства пероксида водорода с использованием процесса АО, включающий две чередующиеся основные стадии:(а) гидрирование рабочего раствора в блоке гидрирования в присутствии катализатора, при этом указанный рабочий раствор содержит, по меньшей мере, один алкилантрахинон, растворенный, по меньшей мере, в одном органическом растворителе, с целью получения, по меньшей мере, одного соответствующего алкилантрагидрохинонового соединения; и(b) окисление указанного, по меньшей мере, одного алкилантрагидрохинонового соединения с целью получения пероксида водорода в блоке окисления; и дополнительно включающий стадию(с) экстракции пероксида водорода, образовавшегося на стадии окисления, в блоке экстракции,отличающийся тем, что стадии гидрирования, окисления и экстракции осуществляют в реакторной системе, которая спроектирована как компактная модульная система, состоящая из блока гидрирования, блока окисления и блока экстракции, при этом указанная реакторная система предназначена для функционирования без блока восстановления, в частности, без блока восстановления, предназначенного для непрерывного восстановления рабочего раствора, как мало- или среднемасштабный процесс АО с производительностью по пероксиду водорода до 20 килотонн в год, при этом рабочий раствор и/или катализатор заменяют и/или обрабатывают с целью регенерации или реактивации только периодически или время от времени.2. Способ производства пероксида водорода с использованием процесса АО по п. 1, отличающийся тем, что стадии гидрирования, окисления и экстракции проводят в почти полностью замкнутой реакторной системе, спроектированн� РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2014 118 565 A (51) МПК C01B 15/023 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2014118565/05, 02.10.2012 (71) Заявитель(и): СОЛВЕЙ СА (BE) Приоритет(ы): (30) Конвенционный приоритет: 11.10.2011 EP 11184576.4 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 12 ...

Method for production of hydrogen peroxide

FIELD: chemistry. SUBSTANCE: invention relates to method and device for production of hydrogen peroxide. Method for production of hydrogen peroxide using an anthraquinone autooxidation AO process includes two alternating main stages (a) hydrogenation of working solution in a hydrogenation unit in presence of a catalyst, wherein said working solution contains at least one alkylanthraquinone, dissolved in at least one organic solvent, in order to obtain at least one corresponding alkylanthrahydroquinone compound; and (b) oxidation of said at least one alkylanthrahydroquinone compound in order to obtain hydrogen peroxide in oxidation unit; and, additionally involving stage (c) for extraction of hydrogen peroxide formed during oxidation, in an extraction unit. Stages of hydrogenation, oxidation and extraction are performed in a reactor system, which is designed as a compact modular system, consisting of a hydrogenation unit, an oxidation unit and an extraction unit, wherein said reactor system is intended for operation without a recovery (regeneration) unit, intended for continuous recovery of working solution, as low- or medium-sized AO process with hydrogen peroxide output of up to 20 kilotons a year, preferably, hydrogen peroxide output of up to 15 kilotons a year, more preferably, hydrogen peroxide output of up to 10 kilotons a year, preferably, wherein working solution and/or catalyst is replaced and/or treated for regeneration or reactivation only periodically or from time to time, for example, with low frequency. EFFECT: technical result is production of aqueous solutions of hydrogen peroxide in concentrations, intended for use in industry, simplification and reduction of scale of process. 12 cl РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 609 474 C2 (51) МПК C01B 15/023 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ФОРМУЛА (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ 2014118565, 02.10.2012 (24) Дата начала отсчета срока действия ...

制备过氧化氢的方法和系统

本发明涉及过氧化氢技术领域，具体涉及一种制备过氧化氢的方法和系统。该方法包括：(1)在加氢催化剂存在下，将含有氢气和工作液的反应液进行氢化反应，并将得到的浆液进行固液分离，得到氢化液和循环浆液，并将所述循环浆液返回加入所述反应液；(2)将所述氢化液分为A液和B液；在再生催化剂存在下，将所述A液进行再生反应，得到再生氢化液；(3)将所述B液、再生氢化液和含氧气体进行氧化反应，得到氧化液；(4)将所述氧化液进行萃取，得到过氧化氢溶液和萃余液，并将所述萃余液返回加入所述反应液。该方法基本消除反应器床层温差，有效提高氢化反应选择性、装置效率以及氢化效率，延长加氢催化剂寿命；该系统简化装置、提高安全性。

Oxidation catalyst, process for its preparation and oxidation process using the oxidation catalyst

The invention concerns a titanium or vanadium silicalite-based oxidation catalyst having a zeolite structure and containing between 0.01 and 20 wt % of one or a plurality of platinum metals from the group comprising ruthenium, rhodium, palladium, osmium, iridium and platinum. The invention is characterized in that the platinum metals are each present in at least two different bond energy states and preferably do not contain any metal-to-metal bonds.

Oxidation catalyst containing lanthanoid metals, process for its preparation and oxidation process using the oxidation catalyst

An oxidation catalyst based on titanium or vanadium silicalites with zeolith structure is characterised in that it contains 0.01-20 wt % of one or more lanthanide metals from the group lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, ytterbium and lutetium.

Chemical product and process

본 발명은 실리카졸, 마이크로 섬유 및 충진재함유 슬러리로 함침된 섬유 종이를 포함하는 촉매 담체에 관계하며, 상기 마이크로 섬유는 Sedigraph 방법으로 측정시 200 내지 30,000 ㎚의 평균 입자크기를 가지며, 상기 충진재는 Sedigraph 방법으로 측정시 300 내지 10,000 ㎚의 평균 입자크기를 가짐을 특징으로 한다. 본 발명은 또한 촉매 담체 제조방법, 이를 위해 유용한 슬러리, 이러한 촉매 담체를 포함한 촉매 및 촉매의 용도에 관계한다. The present invention relates to a catalyst carrier comprising a fiber paper impregnated with a silica sol, microfibers and a filler-containing slurry, wherein the microfibers have an average particle size of 200 to 30,000 nm as measured by Sedigraph method, and the fillers are Sedigraph. It is characterized by having an average particle size of 300 to 10,000 nm as measured by the method. The invention also relates to methods of preparing catalyst carriers, slurries useful for this purpose, catalysts comprising such catalyst carriers and the use of catalysts.

과산화수소의 제조 방법

액체 반응 매질 중 귀금속 촉매의 존재하에 수소와 산소를 알킬 술페이트의 존재하에 반응시킴으로써 과산화수소가 제공된다. 알킬 술페이트의 존재하에, 귀금속 촉매는 사용되는 수소에 대한 과산화수소 생성의 증가된 선택성과 함께, 과산화수소의 생성을 위한 높고 지속적인 활성을 나타낸다. 상기 방법에 의해 수득되는 메탄올 중 과산화수소 용액은 올레핀의 에폭시화 반응에 적절하다. 과산화수소, 과산화수소 용액, 귀금속 촉매, 황산 알킬 에스테르

氢-氧混合器-分布器

本发明披露了一种用于产生过氧化氢的设备。所述设备通过产生承载气泡云的液体而实现过氧化氢的大规模生产。对于所产生的气泡而言，其在流过反应床而产生过氧化氢之前具有微小的体积。

Новые водные растворы пероксида водорода

ÐÎÑÑÈÉÑÊÀß ÔÅÄÅÐÀÖÈß (19) RU (11) 2005 113 688 (13) A (51) ÌÏÊ C01B 15/023 (2006.01) ÔÅÄÅÐÀËÜÍÀß ÑËÓÆÁÀ ÏÎ ÈÍÒÅËËÅÊÒÓÀËÜÍÎÉ ÑÎÁÑÒÂÅÍÍÎÑÒÈ, ÏÀÒÅÍÒÀÌ È ÒÎÂÀÐÍÛÌ ÇÍÀÊÀÌ (12) ÇÀßÂÊÀ ÍÀ ÈÇÎÁÐÅÒÅÍÈÅ (21), (22) Çà âêà: 2005113688/15, 23.09.2003 (71) Çà âèòåëü(è): ÄÅÃÓÑÑÀ Àà (DE) (30) Ïðèîðèòåò: 30.09.2002 EP 02021967.1 (43) Äàòà ïóáëèêàöèè çà âêè: 27.02.2006 Áþë. ¹ 6 (86) Çà âêà PCT: EP 03/10558 (23.09.2003) Àäðåñ äë ïåðåïèñêè: 101000, Ìîñêâà, Ì.Çëàòîóñòèíñêèé ïåð., 10, êâ.15, "ÅÂÐÎÌÀÐÊÏÀÒ", ïàò.ïîâ. È.À.Âåñåëèöêîé, ðåã. ¹ 11 R U (57) Ôîðìóëà èçîáðåòåíè 1. Âîäíûé ðàñòâîð ïåðîêñèäà âîäîðîäà âêëþ÷àþùèé I) â îáùåé ñëîæíîñòè ìåíüøå 50 ìàñ.÷./ìëí ùåëî÷íûõ ìåòàëëîâ, ùåëî÷íî-çåìåëüíûõ ìåòàëëîâ èëè èõ ñî÷åòàíèé íåçàâèñèìî îò òîãî, íàõîä òñ ëè ýòè ùåëî÷íûå èëè ùåëî÷íîçåìåëüíûå ìåòàëëû â êàòèîíîàêòèâíîé èëè êîìïëåêñíîé ôîðìå; II) â îáùåé ñëîæíîñòè ìåíüøå 50 ìàñ.÷./ìëí àìèíîâ, îáëàäàþùèõ çíà÷åíèåì pk B ìåíüøå 4,5, èëè ñîîòâåòñòâóþùèõ ïðîòîíèðîâàííûõ ñîåäèíåíèé; è III) â îáùåé ñëîæíîñòè ïî ìåíüøåé ìåðå 100 ìàñ.÷./ìëí àíèîíîâ èëè ñîåäèíåíèé, êîòîðûå ñïîñîáíû äèññîöèèðîâàòü ñ îáðàçîâàíèåì àíèîíîâ, â ñîîòâåòñòâèè ñ ÷åì çíà÷åíè â ìàñ.÷./ìëí óêàçàíû â ïåðåñ÷åòå íà ìàññó ïåðîêñèäà âîäîðîäà. 2. Âîäíûé ðàñòâîð ïåðîêñèäà âîäîðîäà ïî ï.1, â êîòîðîì êîëè÷åñòâî êîìïîíåíòîâ ãðóïïû I) â îáùåé ñëîæíîñòè ñîñòàâë åò ìåíüøå 40 ìàñ.÷./ìëí, ïðåäïî÷òèòåëüíî ìåíüøå 35 ìàñ.÷./ìëí â ïåðåñ÷åòå íà ìàññó ïåðîêñèäà âîäîðîäà. 3. Âîäíûé ðàñòâîð ïåðîêñèäà âîäîðîäà ïî ï.1, â êîòîðîì êîëè÷åñòâî êîìïîíåíòîâ ãðóïïû II) â îáùåé ñëîæíîñòè ñîñòàâë åò ìåíüøå 40 ìàñ.÷./ìëí, ïðåäïî÷òèòåëüíî ìåíüøå 30 ìàñ.÷./ìëí, áîëåå ïðåäïî÷òèòåëüíî ìåíüøå 20 ìàñ.÷./ìëí, à íàèáîëåå ïðåäïî÷òèòåëüíî ìåíüøå 10 ìàñ.÷./ìëí â ïåðåñ÷åòå íà ìàññó ïåðîêñèäà âîäîðîäà. 4. Âîäíûé ðàñòâîð ïåðîêñèäà âîäîðîäà ïî ï.1, â êîòîðîì àìèíû âûáèðàþò èç ïåðâè÷íûõ, âòîðè÷íûõ è òðåòè÷íûõ àëêèëàìèíîâ. 5. Âîäíûé ðàñòâîð ïåðîêñèäà âîäîðîäà ïî ï.1, äîïîëíèòåëüíî âêëþ÷àþùèé IV) â îáùåé ñëîæíîñòè ïî ìåíüøåé ìåðå 100 ìàñ.÷./ìëí îñíîâàíèé, îáëàäàþùèõ Ñòðàíèöà: 1 RU A 2 0 0 ...

Silica microspheres, method of improving attrition resistance

High-strength, non-agglomerated uniform porous microspheres of silica produced by spray drying a mixture comprising a colloidal silica sol and an additive selected from ammonium citrate or urea; an attrition resistant catalytic composite consisting essentially of metal crystallites such as palladium, platinum-palladium on said silica microsphere and method for preparing the same; and an improved process for making hydrogen peroxide from the direct combination of hydrogen and oxygen in the presence of said attrition resistant catalytic composite.

Fremgangsmate for fremstilling av hydrogenperoksid.

Apparat for fremstilling av hydrogenperoksid etter behov. Apparatet omfatter en elektrolyseanordning (10), en hydrolyseanordning (20) og en separator (30). Et oksidasjonsmiddel genereres for omsetning med vann for å danne hydrogenperoksid.

Production of Hydrogen Peroxide

The invention a relates to hydrogen peroxide manufacture, and catalyst therefor, by direct oxidation of hydrogen with oxygen in an acidic aqueous medium. The catalyst includes a Group VIII metal on a partially hydrophobic, partially hydrophilic support, such as Pd on fluorinated carbon. Improvements in H2O2 selectivity and catalyst stability are achieved by adding a source of sodium and chloride ions to the reaction medium and, in the case of a fluorinated carbon support, adding a source of fluoride ions.

Method of producing a chemical compound

The invention relates to a method of producing hydrogen peroxide by direct reaction between hydrogen and oxygen in an aqueous reaction medium, in which method hydrogen and oxygen are contacted with a catalyst suspended into the reaction medium, the catalyst comprising a catalytically active surface material deposited on a support of porous silica, alumina or non-fluorinated carbon having a BET surface less than about 150 m2/g, wherein pores with a diameter exceeding about 10 nm constitutes more than about 50% of the total pore volume. The invention also relates to a catalyst useful in the claimed method.

Oxidation Catalyst, Process for its Preparation and Oxidation Process Using Said Oxidation Catalyst

본 발명은 제올라이트 구조를 가지며, 루테늄, 로듐, 팔라듐, 오스뮴, 이리듐 및 백금으로 이루어진 군으로부터 선택되는 1종 이상의 백금족 금속 0.01 내지 20 중량%을 함유하는 티타늄 또는 바나듐 실리칼리트를 기재로 한 산화 촉매에 관한 것이다. 본 발명은 백금족 금속이 각각 두개 이상의 상이한 결합 에너지 상태로 존재하고, 바람직하게는 임의의 금속-금속 결합을 함유한다는 것을 특징으로 한다. The present invention relates to an oxidation catalyst based on titanium or vanadium silicalite having a zeolite structure and containing 0.01 to 20% by weight of at least one platinum group metal selected from the group consisting of ruthenium, rhodium, palladium, osmium, iridium and platinum . The present invention is characterized in that each of the platinum group metals is present in at least two different bonding energy states, and preferably contains any metal-metal bonds.

Process for hydrogen peroxide production including step for regeneration of working solution

본 발명에 따르면, 유기용매와, 알킬 치환기를 갖는 안트라퀴논과, 알킬 치환기를 갖는 테트라히드로안트라퀴논을 포함하는 작동용액을, 환원 후에 산화함으로써 과산화수소를 제조하는 공정과, 상기 과산화수소의 제조에 수반하여 부생하는 불활성 물질을 상기 작동용액으로부터 제거하고, 이 불활성 물질이 제거된 작동용액을 다시 과산화수소 제조공정으로 순환하는 작동용액 재생공정을 가지며, 상기 작동용액 재생공정이, i) 대기압 또는 그 이하의 압력하에서 증류에 의해 상기 유기용매를 회수하는 제1 증류공정과, ii) 이어서 보다 낮은 압력하에서, 200℃ 이상, 체류시간 1시간 이상의 증류에 의해 상기 안트라퀴논 및 테트라히드로안트라퀴논을 회수하는 제2 증류공정을 갖는 것을 특징으로 하는 과산화수소의 제조방법이 제공된다. According to the present invention, a process for producing hydrogen peroxide by oxidizing an organic solvent, an anthraquinone having an alkyl substituent, and a tetrahydroanthraquinone having an alkyl substituent after reduction, with the production of the hydrogen peroxide A working solution regeneration step of removing by-products of the by-products from the working solution and circulating the working solution from which the inert material has been removed again to the hydrogen peroxide production process, wherein the working solution regeneration step includes: i) a pressure of atmospheric pressure or lower; A first distillation step of recovering the organic solvent by distillation under ii) a second distillation of recovering the anthraquinone and tetrahydroanthraquinone by distillation at a lower pressure of 200 ° C. or more and a residence time of 1 hour or more. There is provided a process for producing hydrogen peroxide, characterized by having a process.

氧化催化剂、其制备及其使用此氧化催化剂的氧化方法

一种基于具有沸石结构并含有从0.01至20％(重量)的一种或多种铂类金属的钛硅沸石或钒硅沸石氧化催化剂，铂类金属可由钌，铑，钯，锇，铱和铂中选择。在此催化剂中，每种铂类金属是以至少二种不同的键能态存在而且最好设有金属-金属键。

一种蒽醌法生产双氧水的氢化工艺

本发明公开了一种蒽醌法生产双氧水的氢化工艺，包括如下内容：（1）蒽醌法生产双氧水的氢化工艺中设置两个反应器，第一股新鲜氢气和工作液作为进料I在第一反应器发生氢化反应后，反应后的物料经气液分离，得到气相和液相，部分液相循环回第一反应器，剩余的合理优化和调变，避免了反应氢气量不足或氢气量过剩现象，实现氢化完全液相与气相混合后作为进料II进入第二反应器；（2）第二股新鲜氢气与进料II在第二反应器内发生氢化反应后，反应后的物料经气液分离，得到气相和液相，部分液相循环回第二反应器，剩余液相进入氧化工序。本发明工艺通过对氢化过程的同时，减少副反应发生，使氢化反应更加均匀，延长催化剂使用寿命。

Apparatus for obtaining hydrogen peroxide and its method

FIELD: chemistry. SUBSTANCE: invention can be used in chemical industry. Hydrogenation of anthraquinone is performed in the working solution, oxidation of the hydrogenated anthraquinone with oxygen to form hydrogen peroxide and its extraction are performed from the working solution. The apparatus includes modules mounted on the support unit. The modules include a hydrogenator (hydrogenation support unit); an apparatus for oxidizing the hydrogenated anthraquinone with oxygen to form hydrogen peroxide (oxidizing supporting unit); optionally a device for compressing air, and in case of a device for compressing air, a device for extracting solvent; means for extracting hydrogen peroxide from the working solution (extraction supporting unit); means for supply of hydrogen peroxide solution to the point of use and / or optionally to the storage tank, optionally with additional means for controlling the concentration of hydrogen peroxide. Hydrogenation, oxidation and extraction support units along with any optional support unit are constructed as a modular reactor system, able to work as a small-mediumscale AO-method unit with output of hydrogen peroxide up to 20 kilotons per annum. EFFECT: invention allows for effective industrial production of hydrogen peroxide in small-medium-sized production environments, with easy layout and/or replacement of individual pieces of equipment, easy operation and maintenance. 15 cl, 2 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 616 928 C2 (51) МПК C01B 15/023 (2006.01) C01B 15/013 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ФОРМУЛА (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ 2014141057, 28.02.2013 (24) Дата начала отсчета срока действия патента: 28.02.2013 (72) Автор(ы): БЛУМФИЛД Стивен (BE), ДХЕЗЕ Патрик Маркус (BR) (73) Патентообладатель(и): СОЛВЕЙ СА (BE) Дата регистрации: (56) Список документов, цитированных в отчете о поиске: WO 9626898 A1, 06.09.1996. RU Приоритет(ы): (30) Конвенционный ...

Verfahren zur Herstellung von Platinmetall-Katalysatoren

Gegenstand der Erfindung sind ein Verfahren zur Herstellung von Katalysatoren durch stromloses Abscheiden wenigstens eines Platinmetalls auf einem metallischen Träger, wobei man ein wässriges Medium, welches wenigstens einen Platinmetallkomplex, wenigstens ein Reduktionsmittel und wenigstens einen Komplexbildner umfasst und einen pH-Wert von mehr als 4 aufweist, mit dem metallischen Träger zur Abscheidung des Platinmetalls in Kontakt bringt, wobei die Abscheidung des Platinmetalls in Form diskreter, immobilisierter Partikel erfolgt, die auf diese Weise erhältlichen Katalysatoren und deren Verwendung zur Herstellung von Wasserstoffperoxid und zur Hydrierung von organischen Verbindungen.

制备过氧化氢的方法

一种制备过氧化氢的方法，其包括使氢气和氧气在液体反应介质和微粒状、负载型贵金属催化剂的存在下在固定床反应器中反应，其中所述固定床经历所述液体反应介质和包含氢气和氧气的气相的上升流，所述固定床设置于所述反应器中使得相比于所述固定床没有经历流的非运行状态，在运行状态下所述固定床膨胀1体积％至10体积％。根据本发明所述的固定床的膨胀避免了由催化剂磨损引起的所述固定床的堵塞。

过氧化氢的生产方法

一种通过AO法制造过氧化氢的方法，该方法包括以下两个交替的必要步骤：(a)将工作溶液在催化剂的存在下在氢化单元(氢化器)中氢化，其中所述工作溶液含有溶解在至少一种有机溶剂中的至少一种烷基蒽醌，以获得至少一种相对应的烷基蒽氢醌化合物；以及(b)在氧化单元中氧化所述至少一种烷基蒽氢醌化合物以获得过氧化氢；并且进一步包括以下步骤(c)在萃取单元中萃取在该氧化步骤中形成的过氧化氢，其中这些氢化、氧化和萃取步骤在反应器系统中进行，该反应器系统被设计为具有氢化单元、氧化单元和萃取单元的紧凑的模块化系统，并且其中所述反应器系统被配置为作为具有最高达20千吨/年的过氧化氢生产能力、优选具有最高达15千吨/年的过氧化氢生产能力、并且更优选地具有最高达10千吨/年的过氧化氢生产能力的小规模至中等规模的AO法，在没有用于该工作溶液的连续复原的复原(再生)单元的情况下运行，其中该工作溶液和/或该催化剂仅间歇性地或周期性地，例如以低频率，被替换和/或处理以再生或再活化。

Method for producing catalysts consisting of metal of the platinum group by means of electroless deposition and the use thereof for the direct synthesis of hydrogen peroxide.

蒽醌法双氧水装置氢化单元的安全控制系统和控制方法

本发明公开了一种蒽醌法双氧水装置氢化单元的安全控制系统和控制方法，系统包括：气相氧含量在线监测模块、惰性气体模块、第一压力检测模块、温度检测模块、第二氢化联锁设备以及第一氢化联锁设备；第二氢化联锁设备上设置气相氧含量联锁值，第一氢化联锁设备上设置有温度联锁值和压力联锁值；当检测的压力大于压力联锁值，和/或检测的温度大于温度联锁值时，第一氢化联锁设备启动，切断氢化反应器的氢气进料；当检测的气相氧含量大于气相氧含量联锁值时，第二氢化联锁设备启动，将输入至氢化反应器内的氢气切断，向氢化反应器上的气液分离器内注入惰性气体。该安全控制系统克服现有技术中的过氧化氢生产控制的安全性不够完善的问题。

Production of hydrogen peroxide

본 발명은 산성 수용액에 산소로 수소를 직접 산화시켜 얻은 촉매와 과산화수소 제조에 관계한다. 촉매는 Ⅷ기 금속과 부분적으로 친수성, 소수성인 서포트 가령 플로오린화된 탄소에 Pd와 같은 서포트로 구성된다. H 2 O 2 선택성과 촉매 안정성이 반응액에 나트륨과 염소이온 첨가시에 개선되고, 플로오린화 탄소서포트의 경우에 플로오리드 이온원을 첨가한다. The present invention relates to the production of a catalyst and hydrogen peroxide obtained by directly oxidizing hydrogen with oxygen in an aqueous acid solution. The catalyst consists of a support which is partially hydrophilic, hydrophobic with a base metal such as Pd in fluoroinated carbon. H 2 O 2 selectivity and catalyst stability are improved when sodium and chlorine ions are added to the reaction solution, and in the case of fluoroin carbon support, a fluoride ion source is added.

MULTIPURPOSE REACTOR, ITS APPLICATIONS AND PROCESS FOR THE PRODUCTION OF HYDROGEN PEROXIDE

The invention concerns a device comprising a cylindrical vertical stirred reactor (v), provided with centrifugal turbines (a) arranged along a single vertical agitating shaft, and its uses for implementing any process whereby several gas constituents are made to react in the presence of a solid suspended in a liquid phase. The device is particularly suited for directly making hydrogen peroxide.

Multistage reactor, uses and method for making hydrogen peroxide

The invention concerns a device comprising a cylindrical vertical stirred reactor (v), provided with centrifugal turbines (a) arranged along a single vertical agitating shaft, and its uses for implementing any process whereby several gas constituents are made to react in the presence of a solid suspended in a liquid phase. The device is particularly suited for directly making hydrogen peroxide.

Multistage reactor, uses and method for making hydrogen peroxide

Method for obtaining peroxide of hydrogen

FIELD: chemistry. SUBSTANCE: invention relates to the chemical technology of inorganic substances, particularly to a process for producing hydrogen peroxide, comprising oxidizing isopropanol with an oxygen-containing gas. Process for producing hydrogen peroxide includes the steps of catalytic hydrogenation of acetone and oxidation of isopropanol. In the presence of a nickel-copper chromite catalyst, the hydrogenation of acetone with hydrogen is carried out in a molar ratio (3.5–5):1 at a temperature of 70–120 °C, at atmospheric pressure, contact loading for acetone 0.6–1.0 h -1 , then excess hydrogen is separated from the resulting mixture, which is recycled to the hydrogenation step, the obtained isopropanol is transferred to the liquid-phase oxidation step with an oxygen-air mixture containing 35–40 vol% oxygen at a temperature of 110–140 °C with the release of hydrogen peroxide. Unreacted isopropanol and acetone are recycled after separation: isopropanol to the oxidation stage, and acetone to the hydrogenation stage. EFFECT: technical result is that it is possible to significantly reduce the volumes of the initial acetone and feed the feedstock in an amount practically equal to the technological losses during the process; while the desired product of high purity is formed, which reduces the need for a multi-stage, cumbersome stage of hydrogen peroxide release. 1 cl, 1 dwg, 5 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 648 887 C1 (51) МПК C01B 15/026 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C01B 15/026 (2006.01) (21)(22) Заявка: 2017121442, 19.06.2017 (24) Дата начала отсчета срока действия патента: Дата регистрации: Приоритет(ы): (22) Дата подачи заявки: 19.06.2017 (56) Список документов, цитированных в отчете о поиске: Химия и технология перекиси (45) Опубликовано: 28.03.2018 Бюл. № 10 2 6 4 8 8 8 7 R U водорода, под.ред. СЕРЫШЕВА Г.А., Л., Химия, 1984, с.100-107. RU 2356831 C1, 27.05.2009. RU ...