30 results about "Titanium sulfide" patented technology

The invention discloses an electrode active material for a lead-acid storage battery. The electrode active material comprises lead powder and a non-metallic titanium compound; the lead powder comprises one or more kinds of metal lead powder, ball-milling lead powder, Barton lead powder, Pb<2>O powder, PbO powder, Pb<2>O<3> powder, Pb<3>O<4> powder and PbO<2> powder; and the non-metallic titanium compound comprises one or more kinds of titanium sulfide, titanium nitride, titanium boride, titanium carbide, titanium hydride, titanium hydroxide, titanium silicide, a symbiotic blend of the abovementioned compounds on an atomic micro level or atomic cluster level, and doped compounds formed by doping the abovementioned compounds with one or more kinds of F, Sb, Sn, Ca, Bi, Co, Ca, Al, Mg, N, P, O and C. By virtue of the electrode active material for the lead-acid storage battery with an improved formula, the specific power, specific energy, charging-discharging efficiency, cycle life, low-temperature performance and the like of the lead-acid storage battery can be obviously improved.

The invention provides a method for preparing metallic titanium through vulcanization and electrolysis of titanium and iron composite ore and carbon, and relates to the technical field of extraction of non-ferrous metals. A titanium sulfide anode is adopted for electrolysis, the method has the advantages of high electrolysis efficiency, few intermediate products and capability of directly obtaining the high-purity metallic titanium, continuous production can be realized, production of anode mud can be avoided, and energy minerals can be recycled efficiently. The method comprises the followingsteps that S1, a titanium-containing materiel, a titanium-containing reducing agent and a sulfur-containing reducing agent in the molar ratio ranging from 1:2.0:2.0 to 1:2.5:3.0 are evenly mixed, a mixture is prepared and is subjected to complete vulcanization, and a titanium sulfide product is prepared; S2, a solid solution is prepared from the titanium sulfide product; S3, the metallic titaniumis extracted from molten halide salt of alkali metal or alkaline-earth metal with the electrolysis method, the solid solution is used as the anode during electrolysis, and the metallic titanium is obtained at the cathode. The technical scheme is applicable to the process for preparing the metallic titanium through electrolysis.

The present invention provides a novel lithium titanium sulfide, lithium niobium sulfide, or lithium titanium niobium sulfide that contains a sulfide containing lithium, titanium and/or niobium, and sulfur as constituent elements, and that has excellent charge-discharge performance (especially excellent charge-discharge capacity and charge-discharge potential) useful as a cathode active material or the like for lithium batteries, such as metal lithium secondary batteries or lithium-ion secondary batteries. Particularly preferred are, for example, (1) lithium titanium sulfide containing lithium, titanium, and sulfur as constituent elements and having a cubic rock salt crystal structure, (2) lithium niobium sulfide containing lithium, niobium, and sulfur as constituent elements and having a diffraction peak at a specific position in an X-ray diffractogram, and (3) lithium titanium niobium sulfide containing lithium, titanium, niobium, and sulfur as constituent elements and having a diffraction peak at a specific position in an X-ray diffractogram.

The invention discloses a hydrogenation catalyst modified by using a solid-phase modifier and an application of the hydrogenation catalyst. The hydrogenation catalyst is a mixture of a supported palladium catalyst and the solid-phase modifier, or a metal palladium material supported by using the solid-phase modifier as a carrier; when the hydrogenation catalyst is the mixture of the supported palladium catalyst and the solid-phase modifier, the mass ratio of the solid-phase modifier to the supported palladium catalyst is (0.1-500):1; and when the hydrogenation catalyst is the metal palladium material supported by using the solid-phase modifier as the carrier, the loading amount of metal palladium is 0.1-20 wt%, wherein the solid-phase modifier is polyphenylene sulfide or a metal sulfide, and the metal sulfide is at least one selected from the group consisting of silver sulfide, barium sulfide, cadmium sulfide, cerium sulfide, ferrous sulfide, ferrous disulfide, lithium sulfide, sodiumsulfide, nickel sulfide, manganese sulfide, molybdenum sulfide, selenium sulfide, tungsten sulfide, zinc sulfide, copper sulfide and titanium sulfide. The hydrogenation catalyst provided by the invention has high catalytic activity in selective hydrogenation of alkynes, and can effectively improve the catalytic selectivity of a target olefin product.

The invention discloses application of a molybdenum carbide-dispersed copper oxide-titanium trisulfide catalyst to catalytic hydrogenation of tetrahydrofurfuryl alcohol to prepare 1,5-pentanediol. According to the method, copper oxide is used as an active component, one or more modification metals selected from iron, cobalt, nickel, zinc, chromium and vanadium are used for modifying the active component, titanium trisulfide is used as a cocatalyst, a composite component is loaded on a molybdenum carbide carrier, and the formed catalyst is applied to catalytic conversion of tetrahydrofurfuryl alcohol to prepare 1,5-pentanediol. According to the method, the catalyst is prepared from non-noble metal, so cost is low, and stability is good.

The invention belongs to the technical field of a method for rapidly displaying titaniferous inclusions in the field condition based on a corrosion principle, in particular relates to the technical field of metallographic sample preparation of the field metallographic displaying method of titanium nitride and titanium sulfide inclusions in steels, and the like. The method includes the steps of preparing metallographic samples and grinding the samples with 2000 # abrasive paper; corroding surfaces of the ground samples with special chemical reagent, wherein effects of polishing and appearance displaying of titaniferous inclusions can be achieved simultaneously; and performing observation with a field metallographic microscope or sampling analysis by using the membrane coating technology. According to the method, shapes of the titanium nitride and titanium sulfide inclusions can be highlighted, thus, matrix should be prevented from presenting metallographic structures to confuse the field of view, further, field metallographic sample preparation difficulties can be simplified, and sample preparation efficiency can be improved. Besides, titaniferous inclusions in steels can be displayed accurately and efficiently, and the method has the advantages that sample preparation is convenient, displaying effect is good, generality is high and the like.

The invention relates to a preparation method of Ti2SC ceramic by microwave synthesis, which is characterized by comprising the following steps: taking titanium powder, titanium disulfide powder and graphite powder in a mole ratio of (2.5-3):3:(1.0-1.2), evenly mixing, pelleting, and carrying out microwave heating on the pellet material under the protection of inert gas which can not generate chemical reaction on the raw material and reactant, thereby synthesizing the high-purity Ti2SC ceramic. The method can be used for quickly preparing the Ti2SC ceramic powder, greatly reduces the reaction temperature and reaction time, enhances the efficiency by tens of times as compared with the traditional Ti2SC ceramic preparation method, and obtains the favorable single-phase sample.

The invention relates to a tetraphenylporphyrin covalent functionalized titanium disulfide nonlinear nano hybrid material and preparation thereof, the hybrid material is obtained by a free radical addition reaction of tetraphenylporphyrin diazonium salt TPP-N2 + BF4-and sulfur atoms on the surface layer of a titanium disulfide nanosheet, and the hybrid material is a first example about the covalent functionalization of the titanium disulfide nanosheet at present. Compared with a hybrid material obtained by simply and physically mixing the two types of optical functional materials, the hybrid material obtained by bonding carbon-sulfur covalent bonds shows a remarkably enhanced saturated absorption phenomenon in a visible light range. According to the invention, chemical modification methods of titanium disulfide are enriched, and the obtained material has a wide application prospect in the photoelectric fields of nonlinear optical devices and the like.

The invention belongs to the field of flue gas denitration catalysts, and particularly relates to a gas-phase cerium titanium sulfide supported tin oxide catalyst and a preparation method and application thereof. The invention discloses a preparation method of a gas-phase cerium-titanium sulfide supported tin oxide catalyst. The preparation method comprises the following steps: (1) preparing a cerium-titanium solid solution carrier; (2) preparing a cerium-titanium supported tin oxide catalyst; and (3) preparing the gas-phase cerium titanium sulfide supported tin oxide catalyst. The prepared catalyst is large in specific surface area and good in thermal stability, and shows excellent catalytic performance, water resistance and sulfur resistance in NH3-SCR catalysis.

The invention belongs to the technical field of solid lubricating materials, and particularly relates to titanium monosulfide particles, a composite material of the titanium monosulfide particles, preparation and application of the titanium monosulfide particles and a coating material. The titanium monosulfide particles are of a layered structure formed by stacking two-dimensional nanosheets. The invention discloses a novel TiS particle, and experimental results prove that the titanium monosulfide used as a high-temperature-resistant coating has the following unexpected excellent properties: the friction coefficient is in a decreasing trend along with the increase of the temperature (which is obviously different from the trend of the traditional material, the increase of the temperature and the decrease of the friction coefficient); and the lowest friction coefficient of 0.08 is realized at the temperature of 1000 DEG C. The invention further discloses the ZrO2 (at) TiS composite material. Compared with pure titanium monosulfide, the lubricating property of the ZrO2-coated TiS composite material coating is relatively reduced, but the reduction of the preparation cost provides guarantee for the effects of the ZrO2-coated TiS nano composite material in different fields.

The invention provides a preparation method of a surface-modified carbon sulfide titanium battery negative electrode material. The preparation method comprises mixing titanium powder, sulfur powder and graphite powder according to a mole ratio of (1.4-2.2): (0.8-1.2): (0.8-1.2), adding the mixed powder into a self-propagating synthesis reaction kettle, carrying out a high temperature self-propagating reaction process, carrying out ball milling treatment on the obtained blocky sample to obtain a powdery small-particle sample, adding the powdery small-particle sample into absolute ethyl alcohol,carrying out solvent ultrasonic treatment, centrifuging, drying to obtain titanium sulfide powder, mixing the titanium sulfide powder and sodium borohydride in a weight ratio of 1: 4 in an argon atmosphere, heating, and cooling to room temperature to obtain the titanium sulfide/sodium borohydride composite material. The method disclosed by the invention is simple to operate, low in energy consumption, low in cost and environment-friendly, and the prepared surface-modified titanium sulfide negative electrode material is high in specific capacity, has good conductivity, electrochemical activity, cycling stability and rate capability, and is suitable for a negative electrode of a lithium ion battery.

The invention discloses a low-valence titanium sulfide, a preparation method and an application thereof. The method comprises the steps that 1, a TiS2 cathode is prepared, specifically, TiS2 powder issubjected to compression molding to be in a sheet shape, the sheet-shaped TiS2 is fixed to a current collector, and therefore the TiS2 cathode is obtained; (2) a fused salt electrolyte is prepared: under the protection of inert gas, firstly water of haloid is removed, and then heating is carried out to completely melt the haloid so as to obtain the fused salt electrolyte; (3) low-valence titaniumsulfide is prepared: an inert anode and the TiS2 cathode prepared in the step (1) are put into the molten salt electrolyte prepared in the step (2), and an electrolytic tank is constructed; and the TiS2 on the TiS2 cathode is electrolyzed by controlling the electrolysis voltage and the electrolysis time, so that the low-valence titanium sulfide is obtained. According to the method, TiS2 is used as a raw material for preparing the TiS2 cathode, haloid is used for preparing the fused salt electrolyte, and the low-valence titanium sulfide with high conductivity is obtained by controlling the electrolysis voltage and the electrolysis time.

The invention relates to a filtering barrel material for a precision filter. The filtering barrel material is prepared from, by weight, 48-55 parts of aluminum-magnesium alloy, 24-30 parts of manganese, 16-22 parts of silicon carbide, 15-20 parts of titanium sulfide, 5-8 parts of phosphorus and 1-2 parts of color hardener. The filtering barrel material is easy to process, excellent in product mechanical performance, high in strength and long in service life.