The invention discloses a rapid detection method of phase compositions of industrial blue tungsten oxide in front of a furnace, which comprises the steps of breaking pseudo particles of the industrial blue tungsten oxide through grinding, scratching or extrusion to allow colors of surface layers and cores of the pseudo particles to be shown clearly, and then comparing the colors of the surface layers and the cores of the pseudo particles of the industrial blue tungsten oxide with the color of the industrial blue tungsten oxide with known phase compositions, so as to determine the phase compositions of the industrial blue tungsten oxide product.

With the adoption of the method, rapid detection of the phase compositions of the industrial blue tungsten oxide in front of the furnace can be realized, and the detection can be completed in a short time; the method has the characteristics that the method is simple and convenient, the testing cost is low, testing result errors are low, and testing results are stable and reliable; and the method has great significance for the guidance and control of the production of the industrial blue tungsten oxide.




Tungsten Manufacturer & Supplier: Chinatungsten Online - http://www.chinatungsten.com
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email:   sales@chinatungsten.com
Tungsten News & Tungsten Prices, 3G Version: http://3g.chinatungsten.com
Tungsten News & Tungsten Prices, WML Version: http://m.chinatungsten.com

The above is reproduced from: Application Technology Network, if in doubt, please contact the content belongs website.

The invention discloses a high-purity and high-density sintered tungsten oxide material, which is characterized by the following: belonging to inorganic chemistry non-metallic element; making tungsten oxide burn densification without adding any sintering aid; making the purity of the tungsten oxide higher than 99% and the density not less than 6. 7g/cm3. This tungsten oxide can be used to target material of tungsten oxide film plating, panel display, photoelectric transformation, photochromism and so on domain.




Tungsten Manufacturer & Supplier: Chinatungsten Online - http://www.chinatungsten.com
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email:   sales@chinatungsten.com
Tungsten News & Tungsten Prices, 3G Version: http://3g.chinatungsten.com
Tungsten News & Tungsten Prices, WML Version: http://m.chinatungsten.com

The above is reproduced from: Application Technology Network, if in doubt, please contact the content belongs website.

The invention relates to a method for preparing an orientated tungsten oxide nano film.

The method takes an ethanol suspension of monocrystal tungsten trioxide (WO3) nano-plates as a precursor, and utilizes the habit that the nano-plate with high diameter-thickness ratio tends to be parallel to a substrate and the principle that solvent volatilization causes the oriented self-assembly of the nano-plate to prepare the tungsten oxide (WO3) nano film which is formed by overlapping the tungsten trioxide (WO3) nano-plates and oriented along the [002] crystallographic direction. The method is completed at a room temperature, and does not require subsequent heating treatment; and the tungsten trioxide (WO3) nano film prepared is strongly oriented along the [002] crystallographic direction, namely the WO3 nano film is spread along an ab plane and a c- shaft is the film thickness direction.

The method has the characteristics of simple technological process, convenient operation, low requirements on equipment conditions and strong adaptability; and WO3 nano film materials have the characteristics of high crystallinity and good orientation.


Tungsten Manufacturer & Supplier: Chinatungsten Online - http://www.chinatungsten.com
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email:   sales@chinatungsten.com
Tungsten News & Tungsten Prices, 3G Version: http://3g.chinatungsten.com
Tungsten News & Tungsten Prices, WML Version: http://m.chinatungsten.com

The above is reproduced from: Application Technology Network, if in doubt, please contact the content belongs website.

The invention discloses a cerium ion doped tungsten trioxide catalyst and a preparation method and application thereof and belongs to the technical field of catalysts.

The preparation method of the cerium ion doped tungsten trioxide catalyst comprises the steps of (A), adding tungsten powder into H2O2 which is subjected to magnetic stirring at the speed of 200-300r/min; (B), adding cerous nitrate into CH3CH2OH which is subjected to magnetic stirring at the speed of 150-200r/min; (3) adding yellow sol-like matters obtained in the step (A) into the solution obtained in the step (B), heating the mixture with stirring, and aging the mixture; (D) placing the gel obtained in the step (C) into a drying oven to perform drying at the temperature of 100-105 DEG C, and grinding the dried gel into powder; and (E), placing the powder obtained in the step (D) into a muffle furnace, heating the powder, and calcining the powder to obtain the cerium ion doped tungsten trioxide catalyst.

The cerium ion doped tungsten trioxide catalyst produced by the preparation method is good in stability, high in activity, simple in preparation, low in cost, convenient to operate and not liable to cause secondary pollution.


Tungsten Manufacturer & Supplier: Chinatungsten Online - http://www.chinatungsten.com
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email:   sales@chinatungsten.com
Tungsten News & Tungsten Prices, 3G Version: http://3g.chinatungsten.com
Tungsten News & Tungsten Prices, WML Version: http://m.chinatungsten.com

The above is reproduced from: Application Technology Network, if in doubt, please contact the content belongs website.

The invention discloses a nickel ion-doped tungsten trioxide catalyst, and a preparation method and application thereof, and belongs to the field of preparation of the catalyst.

The preparation method of the catalyst comprises the following steps of A) adding tungsten powder to H2O2, wherein the molar ratio of the tungsten powder to the H2O2 is 1 to 4, lastingly heating and stirring the tungsten powder; B) adding nickel acetate to CH3OH to heat and stir; C) injecting solution obtained from the step B) into yellow sol substance obtained from the step A), heating, stirring and aging; D) putting the gel obtained from the step C) into an oven to dry, and then grinding into powder; E) putting the powder obtained from the step D) into a muffle furnace, heating and calcining to obtain the nickel ion-doped tungsten trioxide catalyst.

The catalyst produced by the invention is high in stability and good in activity, not only can generate hydroxyl radical by photo-catalytic oxidation; the pollutant removal rate in the wastewater is obviously improved; and meanwhile, deep degradation of an intermediate oxide product also can be strengthened.


Tungsten Manufacturer & Supplier: Chinatungsten Online - http://www.chinatungsten.com
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email:   sales@chinatungsten.com
Tungsten News & Tungsten Prices, 3G Version: http://3g.chinatungsten.com
Tungsten News & Tungsten Prices, WML Version: http://m.chinatungsten.com

The above is reproduced from: Application Technology Network, if in doubt, please contact the content belongs website.

The present invention discloses a method for preparing highly ordered tungsten oxide nanorods methods.
 
Mixing 0-50 ml of deionized water, and 0-50 ml of 36.5-38 wt% of a commercially available concentrated hydrochloric acid, to a total volume of 50 ml of the mixture, at room temperature after stirring for 5 minutes, then add 0.2-4 within grams of tungsten hexachloride, stirring was continued for 5 minutes, transferred into a 100 ml autoclave temperature; then placed on clean glass conductive for conducting a high-temperature reactor; the temperature within the reactor in a constant temperature oven after hydrothermal reaction constant 100-180 ℃ 4-20 hours, cooled; final conductive glass out from the high temperature reactor, rinsed with deionized water, then placed in the drying oven.

The invention process is simple, reproducible, and the diameter of the tungsten trioxide nanorods prepared 80-100 nm, a length of 3-6 microns.




Tungsten Manufacturer & Supplier: Chinatungsten Online - http://www.chinatungsten.com
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email:   sales@chinatungsten.com
Tungsten News & Tungsten Prices, 3G Version: http://3g.chinatungsten.com
Tungsten News & Tungsten Prices, WML Version: http://m.chinatungsten.com

The above is reproduced from: Application Technology Network, if in doubt, please contact the content belongs website.

This utility model discloses a reduction of the tungsten oxide with hydrogen purification drying tower, the tower is provided with the drying air inlet hydrogen gas to the upper end portion is provided with a hydrogen outlet at a lower end portion provided in the dry hydrogen gas with an adsorbent layer inlet between the inlet and the outlet, wherein the dry hydrogen adsorbent layer is set to three, each interval, and each height of less than 1.5 m. Wherein the adsorbent layer is a dry hydrogen or a molecular sieve layer of the silicone rubber layer.

The utility model is to abandon the prior art using only one drying tower height of more than 1.5 m in the dry hydrogen adsorbent layers. The utility model is in the drying tower spaced three layers of silica gel layer or molecular sieves, and the height is less than 1.5 meters each. After drying tower above structural transformation dried after purification of hydrogen dew point significantly lower steady state. And the production of tungsten carbide powder uniform thickness of coarse particles and fine particles are more uniform.


Tungsten Manufacturer & Supplier: Chinatungsten Online - http://www.chinatungsten.com
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email:   sales@chinatungsten.com
Tungsten News & Tungsten Prices, 3G Version: http://3g.chinatungsten.com
Tungsten News & Tungsten Prices, WML Version: http://m.chinatungsten.com

The above is reproduced from: Application Technology Network, if in doubt, please contact the content belongs website.

The invention discloses a preparation method for an iron-doped tungsten trioxide photoelectrode.

The preparation method comprises the following steps: firstly, preparing an amorphous tungsten oxide film: feeding an ITO (Indium Tin Oxide) conductive glass as a work electrode, a platinum gauze electrode as a counter electrode and a saturated calomel electrode as a reference electrode into electrolyte for electrodeposition to obtain the amorphous tungsten oxide film and drying the amorphous tungsten oxide film for later use; secondly, doping iron by using an impregnating method: feeding the amorphous tungsten oxide film obtained in the first step into 0.005mol/L Fe(NO3)3 solution and impregnating for 20-40 minutes to obtain an iron-doped tungsten oxide film, taking out the iron-doped tungsten oxide film and flushing the iron-doped tungsten oxide film with distilled water and drying the iron-doped tungsten oxide film in air; and thirdly, calcining: feeding the iron-doped tungsten trioxide photoelectrode in the second step into a muffle furnace, calcining the iron-doped tungsten trioxide photoelectrode at high temperature of 450DEG C for 3 hours, cooling the calcined iron-doped tungsten trioxide film at room temperature and then taking out to obtain the iron-doped tungsten trioxide photoelectrode.

The photoelectric conversion efficiency and the photoelectric catalytic activity of the iron-doped tungsten trioxide photoelectrode are remarkably improved; the adopted experiment equipment is simple and easy to operate; and the used raw materials are abundant in natural word and low in cost and also have the advantages of environment friendliness and the like.


Tungsten Manufacturer & Supplier: Chinatungsten Online - http://www.chinatungsten.com
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email:   sales@chinatungsten.com
Tungsten News & Tungsten Prices, 3G Version: http://3g.chinatungsten.com
Tungsten News & Tungsten Prices, WML Version: http://m.chinatungsten.com

The above is reproduced from: Application Technology Network, if in doubt, please contact the content belongs website.

The invention relates to a method for preparing tungsten trioxide by utilizing wet ammonium paratungsate.

The method comprises the following steps of: heating and decomposing the wet ammonium paratungsate to obtain tungsten trioxide. According to the method for preparing the tungsten trioxide by utilizing the wet ammonium paratungsate provided by the embodiment of the invention, the wet ammonium paratungsate (APT) is directly placed into a rotary kiln to be calcined into the tungsten trioxide, so that the drying and packaging procedures can be omitted, the process flow can be shortened, and the production cost of the product can be reduced.




Tungsten Manufacturer & Supplier: Chinatungsten Online - http://www.chinatungsten.com
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email:   sales@chinatungsten.com
Tungsten News & Tungsten Prices, 3G Version: http://3g.chinatungsten.com
Tungsten News & Tungsten Prices, WML Version: http://m.chinatungsten.com

The above is reproduced from: Application Technology Network, if in doubt, please contact the content belongs website.

The present invention discloses a tungsten trioxide nanomaterials preparation.

The first step is to tungsten metal sheet is placed under stirring, deionized water or distilled water, and then with a wavelength of 532nm or 1064nm, a pulse width of 5 ~ 15ns, a repetition rate of 1 ~ 20Hz, single pulse energy of 50 ~ 120mJ laser irradiating at least a tungsten film 10min, tungstic acid colloidal solution obtained, followed, tungstic acid colloid solution to the aging process or to, at least 24h tungstic acid colloid solution was added acid to adjust the pH of -0.6 to 3.0, to give a yellow precipitate, or Tungsten metal sheet placed on the first stirred with the same acid solution pH value, and then use the same wavelength, pulse width, repetition rate, pulse energy of the laser irradiation tungsten film, to give a yellow precipitate, after which the first of yellow precipitate was centrifuged and washed, to give the tungstic acid, tungstic acid and then placed in 480 ~ 520 ℃ annealing at least 1h, tungsten trioxide obtained nanomaterials. It is available in a wide range on the morphology and size of effective regulation.




Tungsten Manufacturer & Supplier: Chinatungsten Online - http://www.chinatungsten.com
Tel.: 86 592 5129696; Fax: 86 592 5129797
Email:   sales@chinatungsten.com
Tungsten News & Tungsten Prices, 3G Version: http://3g.chinatungsten.com
Tungsten News & Tungsten Prices, WML Version: http://m.chinatungsten.com

The above is reproduced from: Application Technology Network, if in doubt, please contact the content belongs website.