52 results about "Nickel Dichloride" patented technology

The invention discloses an aluminum profile surface pretreatment process. The aluminum profile surface pretreatment process comprises the following steps: (S01) degreasing, namely placing a to-be-treated aluminum profile in circularly-flowing degreasing liquid, wherein the temperature of the degreasing liquid is 35 to 40 DEG C and the degreasing time is 0.5 min to 3 min in a treatment process; (S02) performing alkaline soaking, namely soaking the aluminum profile in pre-treating liquid for 1 s to 2 s, wherein the pre-treating liquid consists of the following components: 15 wt% to 20 wt% of sodium hydroxide, 5 wt% to 10 wt% of sodium nitrate, 5 wt% to 10 wt% of sodium phosphate, 2 wt% to 3 wt% of anhydrous nickel dichloride and the balance of water, and the temperature of the pre-treating liquid is 90 to 95 DEG C; (S03) performing primary corrosive washing, namely stewing the aluminum profile which is subjected to the primary corrosive washing in primary corrosive washing liquid; and (S04) performing secondary corrosive washing, namely placing the degreased aluminum profile in circularly-flowing secondary corrosive washing liquid. The aluminum profile surface corrosive washing process provided by the invention is simple, feasible, low in cost and capable of being stably used for a long time; moreover produced waste water and waste liquid can be treated quietly easily, and the influences on the environment are small. The aluminum profile surface pretreatment process disclosed by the invention is especially applicable to an aluminum profile of which the surface pollution is relatively serious and an oxidation film is larger than 0.2 mm in thickness.

The invention discloses an infrared electric heating film heating device with a double-film layer structure, which structurally comprises an electric heating film substrate and electrodes arranged on the two ends of the electric heating film substrate, wherein an electric conduction film layer and an infrared high emission film layer are sequentially evaporated on the surface of the electric heating film substrate. A preparation method of the infrared electric heating film heating device comprises the steps of: sequentially evaporating the electric conduction film layer and the infrared high emission film layer to the electric heating film substrate by using a high-temperature evaporation furnace, wherein an electric heating film solution comprises the components in parts by weight: 45-58parts of stannic chloride, 0.3-2.0 parts of antimony butter, 0.4-1.2 parts of nickel trichloride, 0.3-1.0 part of indium chloride, 5-15 parts of ethanol / glycerol, 6-17 parts of inorganic acid, and 20-30 parts of deionized water, and an infrared high emission film solution comprises the components in parts by weight: 35-45 parts of manganous chloride, 15-20 parts of nickel dichloride, 5-10 parts of chromium trichloride, 5-15 parts of ethanol / glycerol and 20-30 parts of deionized water; and finally assembling the electrodes to obtain the infrared electric heating film heating device. In the invention, the double-film layer structure is adopted for the infrared electric heating film heating device, which can greatly enhance radiative heat transfer, reduce convection heat transfer, improve energy efficiency and save energy sources.

The invention relates to biomass energy utilization technology, and aims to provide a method for promoting the preparation of biomethane by porous carbon derived from cobalt-nickel zeolite imidazolate skeleton. Including: mixing the methanol solution of cobalt chloride, polyvinylpyrrolidone and dimethylimidazole, stirring vigorously, aging to obtain the cobalt zeolite imidazolate skeleton; washing, vacuum drying and grinding to obtain the cobalt zeolite imidazolate skeleton powder; dispersing in ethanol Then add nickel dichloride hexahydrate, and stir to form a cobalt-nickel zeolite imidazolate framework with an eggshell structure; place it in a tube furnace after vacuum drying, and carbonize it under nitrogen; obtain porous carbon microspheres containing cobalt-nickel nanoparticles; Cleaning with hydrofluoric acid, vacuum drying and grinding into powder to obtain porous carbon derived from cobalt-nickel zeolite imidazolate framework. The invention can effectively improve the biomethane production performance of the fermentation system, optimize the electron transfer performance of the system, increase the content of the electroactive extracellular polymer in the system, and strengthen the interspecies electron transfer mediated by the electron shuttle.

The invention relates to a nickel-boron-antimony-co-doped stannic oxide electrical catalytic anode which is prepared by impregnating the surface of a porous titanium plate with an anode coating and calcining the same. The anode coating is prepared from the following components in parts by mole: 600-700 parts of citric acid, 100-200 parts of ethanediol, 100-150 parts of stannic chloride, 5-10 partsof antimony trichloride, 0.5-2 parts of nickel dichloride and 2-4 parts of boric acid. The anode provided by the invention aims to solve the problem that in the prior art, an electrical catalytic anode is high in price and short in service life. The nickel-boron-antimony-co-doped stannic oxide electrical catalytic anode is prepared by means of a method of impregnating a gel coat and calcining ata high temperature, and has the technical advantages of high catalytic activity and stability, low production cost and good phenol degrading effect.

The invention relates to a synthetic method of hexamine phenyl large ring oligomerization silsesquioxane. The method comprises the steps that silane, sodium hydroxide and hexamine nickel dichloride serve as raw materials for generating hex-nickel sodium silanolate through a reaction, then alkenyl-terminated large ring oligomerization silsesquioxane is generated through a reaction of hex-nickel sodium silanolate and alkenyl-terminated chlorosilane, then a coupling reaction is conducted through alkenyl-terminated large ring oligomerization silsesquioxane and bromo-arylamine compounds under the action of catalysts and coordination compounds, and the hexamine phenyl large ring oligomerization silsesquioxane is obtained. Compared with the prior art, The synthetic method is simple in synthesis step, mild in condition, good in controllability, short in cycle and high in yield, the obtained hexamine phenyl large ring oligomerization silsesquioxane can be used for modification of thermosetting resin or thermoplastic resin, and good application prospect is achieved.

The invention relates to a synthetic method of a diaryl-substituted dicarbonyl compound shown as the following formula (III), the equation is shown in the description, and the synthetic method specifically comprises the steps of adding 100 mmol of a compound shown as formula (I), 130 mmol of a compound shown as formula (II), 12 mmol of a catalyst (composed of 6 mmol of 1,3-bi(diphenylphosphine propane) nickel dichloride and 6 mmol of hexafluoroacetylacetone copper), 240 mmol of 2-iodoxybenzoic acid, 110 mmol of dimethylaminopyridine and 17 mmol od tetraphenylporphyrin, then stirring and heating to 90 DEG C, and stirring for reacting for 7 hours under 90 DEG C; after the reaction is finished, quenching the reaction with deionized water, filtering, washing the filter liquor sufficiently withdeionized water, extracting an organic phase for 2 to 3 times by using ethyl acetate, combining the organic phase and drying with anhydrous sodium sulfate, finally performing reduced pressure distillation to perform chromatographic separation on the obtained thick residue by a 300 to 400-mesh silicagel column, wherein an elution solvent is a mixture of acetone and chloroform with the volume ratioof 1 to 2, thus obtaining the compound of the formula (II).

The invention relates to a method for preparing a nanometer nickel pellet with magnetic property. Nickel dichloride, polyvinylpyrrolidone, potassium hydroxide and sodium hypophosphite are dissolved in water respectively; a nickel dichloride solution and a potassium hydroxide solution are mixed, are introduced with nitrogen gas, then added with a sodium hypophosphite solution and continuously keptin a nitrogen introducing state for 10 minutes; the mixed solution is transferred to an inner tank of a hydrothermal kettle with cubage of 15 ml and is continuously introduced with nitrogen gas for protection; the hydrothermal kettle is sealed; the mixed solution reacts for 40 to 60 minutes at a temperature of between 130 and 150 DEG C; and an obtained product is washed by water and ethanol respectively, subjected to magnetic separation and is dried to obtain the nanometer nickel pellet with the magnetic property. The nanometer nickel pellet is subjected to characteristic representation through x ray diffraction (XRD), a transmission electron microscope (TEM) and a scanning electron microscope (SEM); the result shows that the particle diameters of a series of prepared nanometer nickel pellets are between 100 and 500 nanometers; and the particle diameter is relevant to reaction temperature, PH value, dosage of a reducer, reaction time and an added surfactant.