Patents in Class 423/417

Matches 1 - 50 out of 133

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Match	Document	Document Title
1	8097233	Synthesis of nanoparticles by laser pyrolysis The present invention relates to the synthesis of nanoparticles by laser hydrolysis. For this purpose, a precursor interacts with a laser beam (LAS) in a pyrolysis reactor (REAC) for producing...
2	7335343	Preparation of iron pentacarbonyl Iron pentacarbonyl is prepared by reacting iron with carbon monoxide in suspension and in the presence of a mixture of alkali metal sulfide and sulfur as a catalyst.
3	7198770	Process for producing nickel carbonyl, nickel powder and use thereof A process for producing Ni(CO)4 from carbon monoxide and a source of nickel selected from the group consisting of elemental nickel, a nickel compound or mixtures thereof, provided the nickel...
4	6929668	Process for production of hydrogen by partial oxidation of hydrocarbons The invention concerns a method for producing a gas mixture containing hydrogen and carbon monoxide, and optionally nitrogen, from at least a hydrocarbon such as methane, propane, butane or LPG or...
5	6746653	Process for recovering catalyst transition metals from salt-containing reaction mixtures Transition metals may be recovered from a salt-containing mixture containing at least one transition metal compound, salts, and organic compounds by separating from the salt-containing mixture a...
6	6624108	Vitrified carbon compositions Reticulated vitrified carbon compositions which contain particles of Cu, Sn, Zn, Pb, Ni, Fe, or alloys or mixtures thereof dispersed therein and reticulated vitreous carbon compositions wherein...
7	6596245	Process for the recovery and refining of rhodium The present invention relates to a process for the recovery and refining of rhodium starting from a mixture containing rhodium and other transition metals, including those of the platinum Group, as...
8	6358611	Ultrafine particles comprising an organometallic core and process for the production thereof Primarily dedicated to the production of ultrafine particles with good dispersion stability on a industrial scale, the invention provides ultrafine particles characterized in that each of its...
9	6309620	Carbonyl iron silicide powder A process for preparing carbonyl iron silicide comprises heat treatment of an iron/silicon mixture comprising a) from 20 to 99.9% by weight of finely divided carbonyl iron and b) from 0.1 to 80% by...
10	6077487	Process and apparatus of removing metal carbonyls and moisture from a gas A process and composition for removing metal carbonyls and moisture from a gas wherein the gas is contacted with a metal oxide, an organometallic oxide or mixtures thereof having a reduction...
11	6042796	Process and apparatus for removing carbonyls and moisture from a gas A process and composition for removing metal carbonyls and moisture from a gas wherein the gas is contacted with a metal oxide, an organometallic oxide or mixtures thereof having a reduction...
12	5612014	Compound semiconductor crystal A compound semiconductor crystal has a reduced dislocation density reduced. The compound semiconductor crystal doped with an impurity satisfies the following relations, wherein c.c. represents its...
13	5330570	Preparation and method for coating glass vessels Glass vessels are coated by spraying a solution containing 86 to 1,290 g/L of (HO)x Sn(C2 O4)y on the 500° to 600° C. hot outer surface of the vessels. The solution may contain oxalic acid, HCl a...
14	5169808	Metal carbide production from carboxylate precursors Metal carbides can be formed by the pyrolysis of a composition comprising metal and carboxylic acid residues bonded therein, the composition being substantially free of extraneous carbon and also...
15	5130107	Minimizing cobalt catalyst loss in the production of alcohols by hydroformylation of olefins Cobalt is recovered from the oil/water mixed reaction product of oxonation by increasing the carbon dioxide level in the reaction product and adjusting the temperature to enhance the carbon dioxide...
16	5112442	Liquid vaporizing process for manufacturing iron oxide The present invention discloses a method and apparatus for the production of vapors of a liquid iron compound. The apparatus contains a vertical evaporator element which has an internal heating...
17	5096870	Preparation of iron nitrosyl carbonyl catalyst Catalysts suitable for the dimerization of a diolefin, e.g. butadiene to 4-vinylcyclohexene, are prepared by reacting (1) iron chloride and sodium nitrite or alternatively (2) iron nitrosyl...
18	5011798	Chromium additive and method for producing chromium alloy using the same A chromium additive of the formula: Crx Cy Oz where 0.04≤y≤0.35, and 0.03≤z≤0.30 for x=1, said additive having an X ray diffraction peak at d=3.32 Å (2θ=26.8°).
19	4973568	Preparation of a catalyst useful in the dimerization of butadiene Catalysts suitable for the dimerization of a diolefin, e.g. butadiene to 4-vinylcyclohexene, are prepared by reacting (1) iron chloride and sodium nitrite or alternatively (2) iron nitrosyl...
20	4842641	Synthesis of iron-cobalt powders This invention is directed to the preparation of Iron-cobalt powders by reacting iron tricobalt hydrido dodecacarbonyl with iron pentacarbonyl and pyrolyzing the resulting metal-organic iron cobalt...
21	4762699	Synthesis of molybdenum hexacarbonyl Molybdenum hexacarbonyl is prepared by carbonylating diammonium oxopentachloromolybdate (V) (NH4)2 (MoOCl5) at pressures up to about 2000 psig and temperatures up to about 150° C. in a solvent ...
22	4579722	Process for treating alumina raw materials The invention relates to a process for deironing red mud and bauxite and for the preparation of a raw material for alumina industry and of iron pentacarbonyl which comprises (a) activating the red...
23	4576809	Preparation of alkali or alkaline earth metal cobalttetracarbonylates and catalysts of carbonylation reactions therewith Alkali or alkaline earth metal cobalttetracarbonylates well suited for catalyzing carbonylation reactions, e.g., the carbonylation of organic compounds comprising halomethyl functions, are facilely...
24	4514380	Method of preparing tetrarhodium dodecacarbonyl An improved process for making tetrarhodium dodecacarbonyl, Rh4 (CO)12, reacts RhCl3.xH2 O with CO under about 200 psig (14.06 kg/cm2) at a temperature of about 50° C. in the presence of copper ...
25	4496532	Ruthenium carbonylates and processes for their preparation The invention provides the novel ruthenium carbonylate anions [Ru4 (CO)11 ]6- and [Ru6 (CO)17 ]4- and [Ru6 (CO)16 ]6-, together with the salts and acids of these anions. The former anion can be...
26	4476103	Catalytic production of metal carbonyls from metal oxides This invention relates to the formation of metal carbonyls from metal oxides and specially the formation of molybdenum carbonyl and iron carbonyl from their respective oxides. Copper is used here...
27	4454244	New compositions Compositions conforming to the formula Ax++ By+++ (OH)2x+3y-nz Dzn-.tH2 O wherein A is a divalent metal, B is a trivalent metal, D is a polyanion, x, y, z and t are numbers greater than zero and n...
28	4408069	Conversion of methanol to methyl acetate using iron-cobalt catalyst A homogeneous catalytic process for the conversion of methanol to methyl acetate. The process comprises contacting CO with methanol in the presence of a catalytically effective amount of an...
29	4404119	Process for recovery of cobalt oxo catalysts According to one embodiment of the improved process of this invention, dicobalt octacarbonyl is produced in an olefinic medium by contacting an aqueous solution of a tetracarbonylcobaltate metal...
30	4389347	Synthesis of heteronuclear tri-osmium carbonyl hydrides under gaseous hydrogen A process for producing a tri-osmium heteronuclear metal carbonyl compound comprises establishing a reaction mixture comprising an electron deficient cobalt, nickel, iron, molybdenum or rhodium...
31	4349522	Iron, nickel and cobalt tri-osmium carbonyl hydrides and their preparation H2 Os3 (CO)10 has apparent Lewis base character and can be made to react with electron deficient iron, cobalt and nickel carbonyls, including salts of [Fe(CO)4 ]2-, Fe2 (CO)9, (η5 -C5 H5)Co(CO)2, ...
32	4349521	Ruthenium carbonylates, ruthenium carbonyl hydrides, osmium carbonylates and their preparation Disclosed are the novel cluster compounds [HRu4 (CO)13 ]1-, [Ru4 (CO)13 ]2-, [Ru4 (CO)12 ]4-, [HRu4 (CO)12 ]3-, and salts thereof, and H4 Ru4 (CO)12. Also disclosed are novel procedures for...
33	4320064	Polynuclear rhodium carbonyl complexes Particular polynuclear rhodium carbonyl complexes are provided which are useful in the production of polyhydric alcohols such as ethylene glycol by the reaction of carbon monoxide and hydrogen....
34	4282197	Di-iron tri-osmium carbonyl hydride compound and its preparation Disclosed is the new pentanuclear bimetallic cluster complex H2 Fe2 Os3 (CO)15. Such complex is made by reacting a salt of [HFe(CO)4 ]1- and H2 Os3 (CO)10 in a solvent which solubilizes said salt...
35	4250157	Method and apparatus for enriching the iron carbonyl content of a recycle gas stream A method and apparatus for enriching the iron carbonyl content of a recycle gas stream produced in an iron carbonyl decomposition or reaction process to enable reuse of the recycle gas stream in...
36	4234545	Process for the recovery of cobalt values A process for the recovery of cobalt from residues and/or wastes containing the same by converting the cobalt to cobalt oxide. Disclosed herein is a process for recovering cobalt values from...
37	4199520	Rhodium carbonyl sulfur cluster compounds A novel catalyst and process for the manufacture of polyhydric alcohols from synthesis gas. This novel catalyst is a rhodium carbonyl sulfur cluster compound. In particular, the anion cluster of...
38	4172883	Method of purifying metallurgical grade silicon employing reduced presure atmospheric control A method wherein a quartz tube is charged with chunks of metallurgical grade silicon and/or a mixture of such chunks and high purity quartz sand, and impurities from a class including aluminum,...
39	4142875	Process for the purification of scrubbing solvents by removal of Ni(CO).sub . A process for the purification of pressurized gases, such as those emanating from the partial gasification resp. combustion of fuel, which gases contain Ni(CO)4, which comprises contacting said...
40	4141960	Complex bimetallic salts Bimetallic salts, having the generic formula MM'Xn wherein M is a Group IB metal, M' is a Group IIIA metal, X is a halide and n is equal to the sum of the valences of M and M', are prepared by...
41	4131640	Separating rhodium from solution containing rhodium carbonyl complexes and converting the separated rhodium into soluble rhodium carbonyl complexes A process for the separation of rhodium from a solution containing a rhodium carbonyl complex such as is obtained in the carbonylation of an alkanol or of an olefinically or acetylenically...
42	4115433	Catalyst and process for producing polyhydric alcohols and derivatives A novel catalyst and process for the manufacture of polyhydric alcohols from synthesis gas. This novel catalyst is a rhodium carbonyl sulfur cluster compound. In particular, the anion cluster of...
43	4089886	Methanol purification Impure methanol may be treated to remove iron pentacarbonyl impurities by adding a source of hypochlorite ions to the impure methanol whereby the iron of the iron pentacarbonyl will be oxidized to...
44	4056386	Method for decomposing iron pentacarbonyl A homogeneous gaseous catalyst such as H2, NO, PF3, PH3, NH3 or a halogen is used to speed the decomposition of gaseous iron pentacarbonyl into solid iron and gaseous carbon monoxide.
45	4049438	Non-ferrous metal recovery from deep sea nodules Manganiferous deep sea nodules containing non-ferrous metal values are selectively reduced to reduce manganic oxides to manganous oxide (MnO) and the non-ferrous metal values to the metallic state,...
46	4045541	Carbonylation process A carbonylation process involving reacting metallic nickel and a preferential sulfide former in a special chamber with a gas stream containing carbon monoxide and small amounts of hydrogen sulfide,...
47	4033902	Cobalt-platinum catalyst The invention relates to a cobalt-platinum catalyst for promoting the addition of .tbd.Si-H compounds to unsaturated organic compounds which comprises reacting platinum dichloride with dicobalt...
48	4029748	Iridium carbonyl complexes The complexes [Ir(CO)3 I], [HIr(CO)3 I2 ], [HIr(CO)2 I2 (H2 O)], [RIr(CO)2 I2 ], [(RCO)Ir(CO)2 I2 ] where R is an alkyl radical, are described. Processes for preparing the aforesaid complexes are...
49	4000170	Production of carboxylic acids by controlling the active form of iridium catalyst in response to infrared absorption spectra The present invention relates to an improved process for the preparation of carboxylic acids, specifically by the reaction of ethylenically unsaturated compounds with carbon monoxide and water, in...
50	3989799	Divalent metal salts of dodecametal triaconta carbonyls This invention relates to novel carbonyl mixed metal salts, containing more than one metal and having the formula: M [Ty T'12-y (CO)30 ]wherein M is a divalent metal cation which is one of...

Matches 1 - 50 out of 133

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