Yearly Archives - 2022

17 10月

A method for preparing rhenium trichloride

Rhenium itself has no independent deposit, and is often dispersed in other non-ferrous ore bodies. It is mainly associated with molybdenite and mostly occurs in trace minerals such as molybdenum, copper, lead, zinc, platinum and niobium. Therefore, we should make full use of regional resources, give full play to regional advantages, and vigorously build the high-tech industry of scattered metals. A former Soviet union carbide plant, oxidizing roasting – sedimentation method to extract the rhenium: flue gas containing a Re2O7 [...]

Other Articles 详情...
11 10月

Titanium carbon nitride, a new material of the century

In the manufacture of all kinds of mechanical parts, all need to be processed with cutting tools. The cutting performance of tool material is one of the key factors to determine the machining efficiency, machining quality and machining cost. WC-Co – based carbide tool is the most used tool material at present. However, tungsten and cobalt are rare resources, resulting in high cost of WC-Co based cemented carbide materials. Carbon titanium nitride material with high melting point, high strength, wear [...]

Trade News 详情...
05 10月

Sodium potassium niobate – bismuth sodium titanate solid solution structure

In recent years, great progress has been made in the lead-free conversion of electronic materials. Sodium potassium niobate (KNN) and bismuth sodium titanate (BNT) are the two most competitive components that are expected to partially replace the currently used lead zirconate titanate (PZT) component. KNN undergoes cubic, tetragonal, orthogonal and tripartite phase transitions from high temperature to low temperature; The phase transition behavior of BNT is relatively complex. From high temperature to low temperature, BNT experiences cubic, tetragonal and [...]

Other Articles 详情...
27 9月

Preparation and application of zinc telluride

Zinc telluride is a gray or brownish-red powder that is a compound of zinc and telluride, with the chemical formula ZnTe. Ruby cubic crystals can be obtained by sublimation. Stable in dry air, it breaks down when exposed to water, releasing foul-smelling and toxic hydrogen telluride gas. Zinc telluride is mainly used in semiconductors and infrared materials, can be used as fluorescence materials and phosphorescent materials, but also can make light emitting diodes, infrared detection, radiation detection materials. Zinc [...]

Other Articles 详情...
20 9月

Application and synthesis of niobium pentachloride

Application of 1 A Niobium pentaoxide/RGO nanocomposite anode material with stable structure, good electrical conductivity, excellent rate performance, simple preparation process, low energy consumption, low cost, and suitable for industrial production is prepared as follows: The preparation method of niobium pentaoxide/rgo composite anode material includes the following steps :(1) the go nanosheet is mixed with water, stirred, and dispersed by ultrasound to obtain the dispersed solution of go nanosheet; (2) niobium chloride (V) dissolved in water, stirring, niobium pentachloride suspension, to [...]

Technical Support 详情...
13 9月

A method for preparing molybdenum boride powder

Boride molybdenum compounds with high melting point, high hardness, wear resistance, high temperature resistant, corrosion candle and low coefficient of friction etc., plays a very important role in modern industry, are widely used in metal materials, coating materials, high temperature structural materials, the cathode material, corrosion resistant, wear resistant materials and other fields, and with the progress of science and technology, The application field of molybdenum-boride compounds will be further expanded, and this material will show more excellent application [...]

Other Articles 详情...
07 9月

Solid state battery base zirconium: lithium lanthanum zirconate

Solid-state batteries seem to be getting closer, and the news is endless. Including QuantumScape, in which Volkswagen has held a 5% stake since 2014. On Dec. 8, publicly traded QuantumScape, a startup backed by Volkswagen and Bill Gates, unveiled the performance of its latest solid-state battery after a decade of research. The solid-state battery could also be the first commercially viable solid-state battery, it is claimed. QuantumScape shares jumped on the news. The solid-state battery, which could increase the range of [...]

Trade News 详情...
30 8月

Brief analysis of calcium tungstate

From the chemical composition point of view, with sodium tungstate (Na2WO4) and potassium tungstate (K2WO4) is different from the cation in calcium tungstate (Ca2+) is alkaline earth metal, so they are slightly different in structure, physical and chemical properties, production process and use. Note: Sodium and potassium are both alkali metals By definition, calcium tungstate, also known as “artificial tungstate”, is a tungstate consisting of regular divalent metal calcium ions (Ca2+) and tungstate ions [(WO4)2-]. It is a typical self-activating [...]

Other Articles 详情...
24 8月

Analysis of ammonium paratungstate

Also a kind of inorganic metal tungsten compound, ammonium paratungstate and ammonium metatungstate have certain differences in performance, production technology and application. First, the former is insoluble in water, the latter is easily soluble in water, and the aqueous solution is quite stable; Second, the former is the main raw material for the production of the latter; Third, the former is mainly used to produce tungsten products, the latter can be used to produce tungsten products, but also can [...]

Other Articles 详情...
18 8月

Preparation of superfine tungsten carbide

In recent years, the methods of preparing ultrafine or nanometer WC powder mainly include: mechanical alloying, direct reduction carbonization, sol-gel, gas carbonization, fixed-bed chemical vapor method, plasma method, etc. Mechanical alloying Grahame, etc by mechanical alloying method, first the W powder mixes with C powder by atomic ratio 1:1, in the steel tube and argon gas is piped in, and then choose a diameter of 12 mm WC grinding ball, the ball material ratio of 18:1, finally in high-energy ball mill [...]

Other Articles 详情...