195 results about "Hydreliox" patented technology

A method for removing trace moisture from a gas is disclosed. The method involves heating a zeolite having a high silica-to-alumina ratio to about 400 DEG C. to remove physically absorbed water from the zeolite, followed by heating the zeolite to a temperature in excess of 650 DEG C., to form a superheated zeolite. Heating to temperatures of 650 DEG C. or above is believed to cause dehydroxylation of the zeolite. A method for the preparation of a dehydroxylated zeolite is also disclosed. The superheated zeolite is contacted with the gas, thereby adsorbing water from the gas. A dehydroxylated zeolite for removing trace moisture from a gas wherein the zeolite has a high silica-to-alumina ratio and a low level of metallic impurities is also disclosed. The zeolite and methods of the invention are particularly useful for removing trace water from acid gases such as hydrogen chloride and hydrogen bromide.

A method for removing trace moisture from a gas is disclosed. The method involves heating a zeolite having a high silica-to-alumina ratio to about 400° C. to remove physically adsorbed water from the zeolite, followed by heating the zeolite to a temperature in excess of 650° C., to form a superheated zeolite. The superheated zeolite is contacted with the gas, thereby adsorbing water from the gas. A dehydroxylated zeolite for removing trace moisture from a gas wherein the zeolite has a high silica-to-alumina ratio and a low level of metallic impurities is also disclosed. A method for removing metallic impurities from a gas using the low metals zeolite is also disclosed. The zeolites and methods of the invention are particularly useful for removing trace water and trace metal impurities from acid gases such as hydrogen chloride and hydrogen bromide.

The present invention provides novel catalysts for accomplishing catalytic decomposition of undiluted light hydrocarbons to a hydrogen product, and methods for preparing such catalysts. In one aspect, a method is provided for preparing a catalyst by admixing an aqueous solution of an iron salt, at least one additional catalyst metal salt, and a suitable oxide substrate support, and precipitating metal oxyhydroxides onto the substrate support. An incipient wetness method, comprising addition of aqueous solutions of metal salts to a dry oxide substrate support, extruding the resulting paste to pellet form, and calcining the pellets in air is also discloses. In yet another aspect, a process is provided for producing hydrogen from an undiluted light hydrocarbon reactant, comprising contacting the hydrocarbon reactant with a catalyst as described above in a reactor, and recovering a substantially carbon monoxide-free hydrogen product stream. In still yet another aspect, a process is provided for catalytic decomposition of an undiluted light hydrocarbon reactant to obtain hydrogen and a valuable multi-walled carbon nanotube coproduct.

Novel estrogenic compounds of Formula I are provided.wherein the bond represented by the wavy line may be a single or double bond such that when the wavy line is a single bond, R1 is selected from the group consisting of hydrogen, sulfate and glucoronate or other esters, and when the wavy line is a double bond, R1 does not exist; R2 is lower alkyl; R3 may be selected from the group consisting of hydrogen, sulfate, or glucuronide or other esters; and R4 through R13 may independently be selected from the group consisting of hydrogen, hydroxy, ketone, lower allyl, lower alkoxy, halogen, and carbonyl groups and R14 is selected from the group consisting of hydrogen, sulfate and glucoronide and other esters. When R1 is hydroxy, the hydroxy or ester substituent may have either an α or a β orientation. Compositions of matter including compounds of the present invention are also provided as are methods of treating mammals in need of treatment using compounds of the present invention.

This invention relates to acidity zeolite catalyst used for glycerol dehydration to perpare acrolein and the reaction craft. Glycerine directly dehydrate to generate acrolein under the condition of acidity zeolite catalyst, 200 to 500deg temperature, 0.001 to 3.0MPa pressure and 0.1 to 100.0h - 1 liquid airspeed, at the same time produce byproduct pyruvic alcohol. The raw material raw glycerine could be mixed liquor of water solution, alcosol, fatty acid ester solution at any ratio.

A polymer is swollen in a first tank. The swelling temperature is in the range of −10 to 50° C. The mixture is cooled in a first cooling vessel to the range of −100 to −10° C., and thereafter heated in a heating device to the range of 0 to 57° C. The polymer is cellulose acylate in which a degree of substitution of the acyl group for hydroxyl group is at least 2.87. A film obtained from the cellulose acylate has a negative value of ΔRe and a positive value of ΔRth, and |ΔRth| is at least 10 nm. ΔRe and ΔRth are respective difference of Re and Rth at the measurement thereof with use of wavelengths between 700 nm and 400 nm. The film is used adequately as a birefringence film, a protective film for a polarizing filter in a liquid crystal display.

A process for preparing hydroxyl carthamus tinctorius yellow color A comprises using dry carthanus tinctorius as raw material, using deionized water and water alcohol as extracting solution, passing through preliminary separating column and refining column, using deionized water and water alcohol as eluent, and then obtaining hydroxyl carthamus tinctorius yellow color A after frozen and dried, and the content can reach 85%-99%. The invention uses cheap material, no toxic and safe solution, and has simple technology, high carthamus tinctorius usage and low cost, which is suitable to the industrialized industry, and the extracting rate is 0.8%-1.5% according to different purify requests of hydroxyl carthamus tinctorius yellow color A for various applications.

A process for the production of 4-hydroxybutyraldehyde is described. The process comprises reacting allyl alcohol with a mixture of carbon monoxide and hydrogen in the presence of a solvent and a catalyst comprising a rhodium complex and a diphosphine. The diphoshine is a trans-1,2 -bis(bis(3,4-di-n-alkylphenyl)phosphinomethyl)cyclobutane and / or a 2,3-O-isopropylidene-2,3-dihydroxy-1,4-bis[bis(3,4-di-n-alkylphenyl)phosphino]butane. The process gives high yield of 4-hydroxybutyraldehyde compared to 3-hydroxy-2-methylpropionaldehyde.

The invention relates to the field of chemistry, in particular to a synthetic method and application of N, N'-bis-[3-hydroxy-4-(2-benzothiazole)phenyl] carbamide. The molecular structural formula of the N,N'-2-[3-hydroxy-4-(2-benzothiazole)phenyl] carbamide is shown at the right; and the synthetic method of the N, N'-bis-[3-hydroxy-4-(2-benzothiazole)phenyl] carbamide comprises the step that 2-(4-amido-2-hydroxybenzene radical) benzothiazole, 4-AHBA for short, and carbonyl imidazole, CDI for short, are used as raw materials and react in toluene, benzene or xylene solvents to obtain the N, N'-bis-[3-hydroxy-4-(2-benzothiazole)phenyl] carbamide, for short 4-DHBTU. The reaction equation is shown at the right upper part. The invention has available reaction raw materials, mild reaction conditions and high yield; any other catalysts and (or) reaction auxiliary agents do not need to be added in the reaction process, the operation is simple and safe, the phenolic hydroxyl radical of the 4-AHBA does not need to be protected, and the recovery of a byproduct of the imidazole is convenient; and the 4-DHBTU is used as a fluorescent probe and used for the detection of Zn, the concentration lower limit of the Zn is measured and can reach 1*10mol / L, and Fe, Fe, Cd, Co, Mn, Cu, Ni, Ag, Sn, La and Pb all do not interfere the measurement of the concentration of the Zn.

A doped hydroxy phosphorite used to remove F and Pb from drinking water has a chemical formula: Ca10{(PO4)6-y(CO3.OH)y}{(OH)2-2x(CO3)x}, and is prepared through proportioning Ca(NO3)2, (NH4)2HPO4 and NH4HCO3, mixing with (NH4)2HPO4 and NH4HCO3, slow dropping Ca(NO3)2, regulating pH value by ammonia water, stirring to generate gel of doped hydroxy phosphorite, ageing, washing, pressure filtering, shaping and drying. Advantages include: good effect, nontoxic, no secondary pollution, large fluorine adsorbance etc.

A 2,4-dihydroxyldiphenylketone preparation method which adopts resorcinol, trichlorotoluene, ethanol, methanol and water as main raw materials comprises the following steps: adding water in a reaction tank, heating water with steam to 35-38 DEG C, then adding resorcinol in the reaction tank, starting stirring to dissolve resorcinol completely, then adding ethanol and methanol in the reaction tank, controlling the quantity of steam to heat the materials to 50-60 DEG C, adding trichlorotoluene to react for 3-4h while controlling the material reaction temperature to 45-55 DEG C and keeping the temperature, cooling feed liquid to reduce the material temperature to 20-30 DEG C and finally obtaining 2,4-dihydroxyldiphenylketone by centrifugal separation. The method realizes that the yield is 99% and the product purity can reach more than 98%.

This is a kind of producing method of catalyst used for refining coarse terephthalic acid (CTA). The catalyst makes grains or molding active carbon as carrier, the content of loading active component metal Pd is 0.2 - 4wt%. It orderly includes: have acid wash to carrier active carbon; wash carrier active carbon with water to neutral; have soakage with watery solution containing nitrite ion to carrier active carbon; dry carrier active carbon to get rid of water; prepare Pd solution with water-soluble Pd compound, a kind of complexing agent and water to infuse or insufflate the carrier active carbon; the content of Pd compound in the Pd solution counted by Pd is 15 - 20wt%; the mol proportion of complexing agent and Pd is (0.01 - 1) : 1, the complexing agent is got from anyone of 8-hydroxyquinoline, 2, 3, 4-trihydroxyl-4-sulfonic azobenzol, o-phenanthroline, o-Aminophenol, o-hydroxybenzoic sodium or o-hydroxybenzaldehyde oxime; after aginged, have deoxidizing treatment with reducing agent to get activator products.

A method of making a red pigmented composition is disclosed which includes (a) preparing an aqueous extract of Garcinia indica fruit comprising at least one red colorant; (b) treating the extract with a cation exchange resin so that one or more red colorant associates with the resin; (c) eluting the red colorant from the resin with an eluting solution containing one or more alcohol such as methanol, ethanol and isopropanol and one or more acid such as hydrochloric acid, citric acid, acetic acid, tartaric acid and hydroxy citric acid to yield a red-colored eluate; (d) collecting and concentrating the eluate to provide a concentrate; and (e) adding an antioxidant agent and / or placing the concentrate in an aseptic container in a non-oxidizing atmosphere. A combination comprising the resulting stabilized Garcinia extract in aseptic packaging in a non-oxidizing atmosphere is also disclosed, along with methods of use.