34 results about "Cobalt hydrocarbonyl" patented technology

A process for producing purified cobalt from a mixture comprising metallic species of cobalt and metallic species of at least one of the group consisting of nickel and iron, comprising producing a metal carbonyl mixture of cobalt carbonyl and at least one of nickel carbonyl and iron carbonyl from the metallic species mixture; separating the nickel carbonyl and / or iron carbonyl from the cobalt carbonyl; treating the cobalt carbonyl with an effective amount of a complexing gaseous mixture of nitric oxide / carbon monoxide to produce cobalt nitrosyl tricarbonyl; and decomposing the purified cobalt nitrosyl carbonyl to provide purified cobalt and regenerated complexing gaseous mixture for recycle. The process provides cobalt of improved quality in an optionally, Continuous and closed-loop manner. Preferred processes include either aqueous and / or gaseous process steps.

A method for forming a cobalt-containing thin film by a vapor deposition process is provided. The method comprises using at least one precursor corresponding in structure to Formula (I); wherein R1 and R2 are independently C2-C8-alkyl; x is zero, 1 or 2; and y is zero or 1; wherein both x and y can not be zero simultaneously.

The invention discloses a 1,1,3,3-tetra alkyl guanidine carbonyl cobalt metal organic ion liquid. A structure formula of the ion liquid is shown in the description. The invention also discloses a preparation method of the ion liquid and application of the ion liquid in synthesizing of 3-hydroxy carboxylate by epoxy compound hydroesterification. The 1,1,3,3-tetra alkyl guanidine carbonyl cobalt metal organic ion liquid has the advantages that guanidine cation has the double functions of stabilizing tetra carbonyl cobalt cation and using as a Lewis acid to activate epoxy compound primer; compared with the traditional Co2(CO)8 / azacycle catalytic system, the use of a nitrogen-containing organic matter is avoided; the ion liquid can be recycled and repeatedly used, the use rate of carbonyl cobalt is improved, and the production cost is reduced; the stability of the 1,1,3,3-tetra alkyl guanidine carbonyl cobalt metal organic ion liquid is high, the ion liquid can be repeatedly applied to catalysis of epoxy compound hydroesterification for multiple times, the catalytic reaction effect is good, and the separation and recycling are convenient.

The invention relates to coronene compound containing thioether in lateral chain and the preparation method thereof. The structural formula of the compound is shown in the descriptiopn: R refers to alkyl. In the method, ring trimerization- ferric trichloride coronene method, namely 2- (4'- bromophenyl) ethanol is taken as raw material, through hydroxyl bromo, thioether is formed, palladium-catalyzed is selected for direct coupled reaction, so as to obtain diphenylacetypene ramification, under the catalysis of cobalt carbonyl, corresponding hexaphenylbenzene is produced by trimerization cyclization. Anhydrous ferric trichloride is oxidized in methylene dichloride and nitromethane, then reduction is performed by using iodine and sodium borohydride system, and after drying, THF (tetrahydrofuran) is used for recrystal. The synthetic method provided by the invention is simple, is high in yield, and can be extensively used in organic LBD, field-effect tubes and solar batteries.

The invention discloses a method for preparing 2-(4-isobutylphenyl)propionate from 1-(4-isobutylphenyl)ethanol (IBPE). According to the present invention, an imidazole functionalized ion liquid containing cobalt carbonyl and polyether is adopted as a catalyst to carry out a hydroesterification reaction of IBPE, carbon monoxide and an alkyl alcohol to prepare 2-(4-isobutylphenyl)propionate. The method has the following characteristics that: precious metal use is avoided, catalytic activity is good, and the catalysis system is easy to separate, and can be recycled.

The invention relates to the field of food detection, in particular to a preparation method of a cobalt sulfide nanomaterial and a method for detecting hydrogen peroxide with the cobalt sulfide nanomaterial. O-dichlorobenzene, oleic acid and trioctyl phosphine oxide react with an o-dichlorobenzene solution containing carbonyl cobalt, then reaction products react with an o-dichlorobenzene solution containing sulfur, the reaction products are sequentially washed and centrifuged with methanol and distilled water repeatedly, and cobalt sulfide nanomaterial powder is obtained. According to the method for detecting hydrogen peroxide with the cobalt sulfide nanomaterial, to be specific, a phosphate buffer solution of cobalt sulfide is added to a Tirs-Hcl buffer solution, then a to-be-detected solution and a TMB color developing agent are added, and whether the to-be-detected solution contains hydrogen peroxide or not is judged through observation of color reaction. The method is high in detection speed and accuracy and has better specificity to detection of hydrogen peroxide.

The invention relates to a hexabenzocoronene compound containing thioether in the dovetail-like side-chain and a preparation method thereof. The structural general formula of the compound is described in the specification, and in the formula, R is a dovetail-like alkyl group. According to the invention, a ring trimerization-ferric trichloride co-coronene process is employed, 2-(4'-bromophenyl)ethanol is used as a raw material; mercaptan is produced after hydroxyl bromination and thiourea salt reaction; then thioether is prepared; a palladium catalyzed direct coupling reaction is selected so as to obtain a diphenylacetylene derivative; the diphenylacetylene derivative undergoes ring trimerization under the catalysis of carbonyl cobalt so as to produce corresponding hexaphenylbenzene; and hexaphenylbenzene is oxidized with ferric chloride anhydrous in dichloromethane and nitromethane and then reduced with a system consisting of iodine and sodium borohydride, then methanol is added, precipitation is carried out so as to obtain a yellow solid, and the yellow solid is purified. The dovetail-like side-chain is favorable for reduction of the melting point of the compound and enables a compound with a certain chain length to have the properties of discotic liquid crystals and to have mesogenic behavior, so reference is provided for designing of discotic liquid crystals. The hexabenzocoronene compound is extensively applied to organic light-emitting diodes, field effect transistors and solar cells.