66results about How to "High titanium content" patented technology

A process for preparing a Ziegler-Natta catalyst used for the sludge polymerization of ethene features that in its preparing procedure the ultrasonic wave technique is used for increasing the content of Ti and improving the granularity distribution of polymer.

The invention provides a preparation method for composite oxide of titanium dioxide/aluminum oxide is provided by the invention. The method comprises the steps: metatitanic acid dissolves in acidic condition into titanium solution, which is A solution; an aluminum source, which is meta-aluminate or inorganic acid salt of aluminum, dissolves into aluminum solution, which is B solution; the A solution and the B solution are mixed to acquire a product C, which is regulated to be alkaline, dried and baked at the temperature of 300 DEG C-700 DEG C, thus acquiring the composite oxide of titanium dioxide/aluminum oxide; mole ratio of the added metatitanic acid and the added aluminum source is 1:0.1-10; product thus acquired has high titanium content and high specific surface area, and has the same mechanical strength with like products.

The invention discloses a medical stone ceramic product prepared from the following raw materials in percentage by weight: 41-45% of medical stone powder, 16-20% of potassium feldspar powder, 10-14% of soda feldspar powder, 8-10% of quartz powder and 12-17% of Laiyang soil. The preparation method comprises the following steps: weighing raw materials in percentage by weight, grinding and filtering the raw materials by a sieve with the granularity of 100-150 meshes, and uniformly mixing for later use; grinding the powder in a ball miller for 1-2 hours according to the condition that the ratio of the material to balls to water is 1:2:0.5, filtering mud through a sieve with the granularity of 32-35 meshes, and pugging to obtain a finished mud product; performing slip-casting, demoulding, correcting and grinding, and drying for 12-24 hours; sintering a dried mud blank in a furnace in steps and cooling to obtain the required product. The medical stone ceramic product is reasonable in material proportion and scientific in sintering method, so that the medical stone has improved performance, good air permeability and high plasticity, and the yield is up to 97%; the medical stone is free from toxicity and radiation, and has no change in original property and precipitated trace elements; the medical stone can be prepared into various beautiful new material tea sets, cups and other finished products.

The invention discloses a synthesis method of a titanium-containing nano-mordenite molecular sieve, comprising the following steps of: firstly, dissolving an aluminum source in sodium hydroxide solution, adding a silicon source, stirring by strong magnetic force at room temperature for evenly dispersing, mixing the evenly-dispersed silicon source and aluminum source solution to prepare glue at room temperature, adding the mordenite molecular sieve serving as a seed crystal, quickly adding Ti-containing micromolecule organic amine solution into the mixed solution, stirring by strong magnetic force at room temperature for evenly dispersing, transferring into a reaction crystallization kettle, carrying out crystallization reaction at 150-170DEG C for 0.5-3d, and carrying out conventional leaching, washing and drying operations to obtain a solid product. The synthesis method has the characteristic that the titanium atom is led into a micropore skeleton in the manner of quadridentate and high dispersion by using hydro-thermal synthesis, the micromolecule organic amine serving as the chelant of impurity metal titanium atom, and the one-step method is used, so that the obtained titanium-containing nano-mordenite molecular sieve is high in crystallinity and purity, controllable in particle size and shape and low in cost, and causes little environment pollution, thereby being convenient for the large-scale industrial production.

A catalyst for the polymerization of olefin is a reaction product of magnesium compound, titanium compound and electronic donor compound, which are carried by a carrier whose average granularit is less than 100 nm. Its advantages are high polymerizing activity, uniform and controllable polymer granularity.

The invention provides a method for preparing a titanium silicon molecular sieve TS-1 with high framework titanium content. The method particularly comprises the following steps: mixing a silicon source and a titanium source according to the proportion, and adding an aqueous solution of quaternary ammonium base to obtain mixed liquid; hydrolyzing the mixed liquid to remove alcohol, adding a starch solution and performing crystallization to obtain a crystallization product; and drying and roasting the crystallization product to obtain the titanium silicon molecular sieve TS-1 with high framework titanium content. According to the method, the starch solution is added in the synthesis process, the silicon source is in bridge connection with the titanium source by utilizing a large amount of hydroxyl groups in the starch, and the silicon source and the titanium source are easy to combine, so that more titanium can enter the TS-1 framework. The titanium silicon molecular sieve prepared with the method has high titanium content and hardly contains extra-framework titanium, and mother liquid can be recycled.

The invention relates to a method for preparing titanium silicalite microcapsules, and mainly solves the problems in the prior art, for example, the content of titanium in TS-1 molecular sieve is low, the TS-1 molecular sieve is not treated with alkali, and when the ZSM-5 molecular sieve is modified by alkali treatment, the crystallization degree is low and the microcapsule with more than 100 nm cavities and having a shell-like structure on the surface is not obtained. In order to overcome the problems, the technical scheme is as follows: the titanium silicalite microcapsules are obtained by treating TS-1 crude powders (the Si/Ti molar ratio (calculated as SiO2/TiO2) ranges from 20 to 500 and the particle size ranges from 0.4 Mum to 20 Mum) with 0.4 mol/L to 5.0 mol/L of a solution of at least one alkali selected from sodium hydroxide, magnesium hydroxide, potassium hydroxide, calcium hydroxide, sodium carbonate and sodium bicarbonate, at a temperature ranging from 20 DEG C to 90 DEG C for a time period ranging from 1 hour to 48 hours; and the volume of cavities with a size in the range from 100nm to 160nm accounts for 20% to 70% of the total volume of cavities with a size more than 2 nm. The titanium silicalite microcapsules are applied to the industrial production of catalytic oxidationof macromolecules.

The invention discloses an environment-friendly method for titanium separation from iron tailings, and belongs to the technical field of mineral processing. The method solves the problems of an existing tailing mineral processing method that efficiency is low, the cost is high, and secondary pollution is liable to occur. The environment-friendly method for titanium separation from the iron tailings comprises the following steps that the iron tailings are adjusted to ore pulp with concentration of 30-50%, tailing pulp is obtained after weak-magnetism tailing discharging, the tailing pulp is concentrated until the ore pulp concentration is 40-60%, a ball milling product is obtained by ore grinding, the ball milling product is subjected to hydraulic classification to obtain an overflow material and a bed charge, the concentration of the overflow material is adjusted to 35-50%, high gradient strong-magnetic titanium extraction is conducted to obtain secondary coarse concentrate, the secondary coarse concentrate is separated by a four-stage shaking table to obtain titanium concentrate, titanium middlings and tailings, the titanium middlings are subjected to high gradient strong-magnetictitanium extraction and one-stage shaking table separation, and titanium concentrate and tailings are obtained. No chemical reagent is adopted in the whole process according to the method, secondarypollution does not occur, solid-liquid waste secondary resource recovery and utilization is achieved, and the ecological environment is protected.

The invention belongs to the technical field of metallurgy, and relates to a titanium alloy material and a preparation method thereof, in particular to a titanium-silicon alloy and a preparation method thereof. The titanium-silicon alloy material comprises, by weight, 37-60 parts of Ti and 40-63 parts of Si. The preparation method of the titanium-silicon alloy material comprises the following steps of a, preparing materials, b, mixing uniformly, c, roasting and d, cooling, wherein in the step a, 35.7-38.5 parts of titanium pigment, 26.9-32 parts of silicon powder and 25-34.6 parts of calcium oxide, by weight, are taken; in the step b, the materials prepared in the step a are mixed uniformly; in the step c, the raw materials mixed uniformly in the step b are roasted, the roasting temperature is 1450-1600 degrees and the roasting time is 10-30min; in the step d, the raw materials after the roasting in the step c are cooled, and effective separation between the titanium-silicon alloy and slag is realized. The titanium-silicon alloy is prepared through one-step synthesis by employing an electro-silicothermic process to reduce titanium pigment, the preparation method is simple in technology, the preparation of the titanium-silicon alloy is not required to be carried out in an inert gas or vacuum environment, the energy consumption is low, the titanium-silicon alloy can be produced and prepared in scale, and the titanium-silicon alloy and the preparation method have great application prospects.

The invention belongs to the technical field of medium plate production, and particularly relates to a titanium microalloyed Q355B structural steel plate and a recrystallization controlled rolling process method thereof. The steel plate comprises the following chemical components in percentage by mass: 0.16 to 0.20 percent of C, 0.15 to 0.30 percent of Si, 0.70 to 0.90 percent of Mn, less than or equal to 0.025 percent of P, less than or equal to 0.015 percent of S, 0.015 to 0.045 percent of Als, 0.055 to 0.070 percent of Ti and the balance of Fe and inevitable impurities. The process method comprises the steps of blast furnace molten iron smelting, molten iron pre-desulfurization, converter smelting, deoxidation alloying, LF refining furnace refining, slab continuous casting, slab reheating, rolling mill rolling, laminar cooling, steel plate straightening, finished product sampling inspection and warehousing. The recrystallization controlled rolling process is adopted in the rolling stage, conventional two-stage controlled rolling is not adopted, temperature holding after first-stage rolling is avoided, and the production rhythm is high.

The invention discloses a new energy automobile motor rotor casting aluminum alloy and a preparation method thereof, and belongs to the technical field of new energy automobile motors, the new energy automobile motor rotor casting aluminum alloy comprises 0.05 wt%-0.06 wt% of titanium, 0.04 wt%-0.06 wt% of boron, 0.15 wt%-0.5 wt% of silicon, 0.01 wt%-0.08 wt% of iron, 0.5 wt%-0.7 wt% of copper, 0.3 wt%-0.5 wt% of magnesium, 0.01 wt%-0.2 wt% of zinc, 0.02 wt%-0.12 wt% of manganese, and the balance aluminum. By adding new elements and adjusting the proportion of all the elements, the strength of the cast aluminum alloy is improved, and meanwhile excellent conductivity can be kept.

The invention relates to a low-radiation cover glass for radiation-sensitive sensors, with low intrinsic a-radiation, in particular for use with semiconductor technology. The glass includes a glass composition, selected from the following: aluminosilicate glass, aluminoborosilicate glass, borosilicate glass, in particular borosilicate glass that is devoid of alkali, with a TiO2 content of >0.1 - 10 % by weight, in particular 1 - 8 % by weight.

The invention discloses a tailing processing technology. The tailing processing technology comprises the titanium concentrate screening and titanium concentrate enriching. The titanium concentrate screening comprises the following steps that S1, tailings are collected; S2, the collected tailings are graded based on the grain size to obtain a first tailing group with the large grain size and a second tailing group with the small grain size; S3, the first tailing group is introduced into a physical screening device for magnetic separation; and S4, ore with high titanium content screened in the step 3 is subjected to flotation processing to obtain titanium concentrate. The titanium concentrate enriching comprises the following steps that S5, the titanium concentrate obtained in the step 4 issubjected to hydrochloric acid processing; S6, the ore processed in the step 5 is subjected to chloridization; and S7, the ore processed in the step 6 is subjected to magnesium thermal reaction to obtain finished titanium ore. According to the tailing processing technology, the tailings after primary separation can be screened to obtain the ore with high titanium content finally. Different end products can be obtained, and practicability is high.

The invention provides a titanium dioxide synthetic system. The titanium dioxide synthetic system comprises a titanic iron ore supply device, a reduction smelting unit, a chlorination unit and an oxidizing unit, the reduction smelting unit is provided with a feeding port and a high titanium slag discharging port, the feeding port communicates with the titanic iron ore supply device, the chlorination unit is provided with a high titanium slag inlet, a chlorine inlet and a titanium tetrachloride discharging port, the high titanium slag inlet communicates with the high titanium slag discharging port through a high titanium slag transport pipeline, the oxidizing reaction unit is provided with a titanium tetrachloride inlet and a titanium dioxide discharging port, and the titanium tetrachlorideinlet communicates with a titanium tetrachloride discharging port through a titanium tetrachloride transport pipeline. According to the titanium dioxide synthetic system, the environmental protectiveperformance of the technology can be greatly improved, and meanwhile the titanium dioxide synthetic system has the advantages that operation is easy, the preparation period is short, and the cost islow.

The invention relates to a treatment system and method for vanadium extraction tailings. The system comprises a blending device, a pelletizing device, a reduction device and an ore grinding and magnetic separation device which are sequentially connected. The method comprises the steps that the vanadium extraction tailings, titanium concentrate and a carbonaceous reducing agent are blended in the blending device, so that a blended material is obtained; the blended material is pelletized in the pelletizing device to obtain pellets; the pellets are subjected to reduction treatment in a reduction furnace, so that metalized pellets are obtained; and the metalized pellets are treated through the ore grinding and magnetic separation device, and metallic iron powder and titanium tailings are obtained. By adding the titanium concentrate, the technical problem that the titanium recovery rate of low-titanium-content vanadium extraction tailings is low is solved, the recovery rate can reach 98% or over, and the novel method for comprehensive recycling of the vanadium extraction tailings is provided.

The invention provides a method of preparing an aluminum-titanium alloy plating through electrodeposition in an organic solvent system at the room temperature, and relates to a method of preparing analloy plating. The method comprises the following preparing processes that plating solution is prepared, specifically, anhydrous aluminum chloride and lithium aluminium tetrahydride are weighed, anhydrous titanium tetrachloride is slowly added into the anhydrous aluminum chloride and the lithium aluminium tetrahydride, and in the process, the using ratio of benzene to tetrahydrofuran is (4:1)-(4:3); a copper matrix is treated, specifically, a copper sheet is polished smoothly through 400, 800 and 1200 meshes of abrasive paper in sequence, and then oil removing is conducted; and constant-current electrodeposition is conducted, specifically, graphite serves as an anode, the copper sheet serves as a cathode, the current density is controlled to be 6-38 milliampere/square centimeter, electrodeposition is conducted, thus a pure aluminum-titanium alloy with the uniform particle size can be obtained, and the electrodeposition time is controlled to be 3-5 hours. The method adopts the graphiteas the anode, titanium ions with a certain concentration are obtained by adding the anhydrous titanium tetrachloride, the method is low in cost, the generated aluminum-titanium alloy is pure and uniform in particle size, and the titanium content is high.

The invention belongs to the technical field of chemical industry, and in particular relates to a process for producing anhydrous formaldehyde by dehydrogenation of methanol, a soluble copper salt and an additive are homogeneously precipitated on the surface of a titanium silicon molecular sieve carrier, after cooling, an acid modifier is added for modification under microwave effect, and after the completion of the reaction, the anhydrous formaldehyde is obtained by drying and air roasting. The methanol is used as a raw material, and an inert gas is used as a carrier gas. The reaction is carried out in a fixed bed reactor. A copper based catalyst is filled in a reaction tube, and the reaction tube is sent to the reactor for reaction. Through the acid modification under the microwave effect, the synergistic effect of the Cu base and the titanium silicon molecular sieve can be effectively enhanced, the dispersion of the catalyst is significantly increased, the titanium content outside the framework of the molecular sieve is reduced, and the effective framework titanium content is increased.