2018/11/02

【Chinatungsten】Characteristics of Molybdenum Ore in China


Characteristics of molybdenum ore in China include low grade, rich accompanying useful components, high economic value, large scale and open cut mining, and high degree of geological works.

Low Grade

Molybdenum ore in China has large proved reserves, but with low grade compared with the main molybdenum resources countries in the world, most of which belong to low-grade deposits. For the low-grade deposits with average grade less than 0.1%, its reserves account for 65% of the total reserves, of which less than 0.05% account for 10%, medium grade (0.1%0.2%) account for 30%, higher grade (0.2%0.3%) account for 4% and the average grade higher than 0.3% only account for 1%.

Rich Accompanying Useful Components and High Economic Value


According to the statistics, molybdenum, as a single mineral deposit, its reserves only account for 14% of the total reserves in China; as the main mineral resources, it is associated with other useful mineral deposits, which account for 64% of the total reserves; others that are associated and coexisted copper, tungsten and tin and other metals account for 22%.

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【Chinatungsten】Molybdenum Copper Alloy Properties


Molybdenum copper is alloy of molybdenum and copper. It is a great alternative to tungsten copper for weight sensitive applications, with many good properties.

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【chinatungsten】Types of Molybdenum Alloy


Molybdenum alloy is a nonferrous alloy consisting of other elements with molybdenum as the matrix. Types of molybdenum alloy include TZM and TZC alloys, MHC and ZHM alloys, molybdenum-tungsten alloy, molybdenum-rhenium alloy, MH and KW alloys.

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【Chinatungsten】TZM Alloy Properties


TZM alloy has many good properties, such as physical property, chemical property and mechanical property, including high temperature oxidation resistance, room temperature and high temperature tensile mechanical properties, high temperature bending and creep properties, high temperature fatigue resistance, so it is widely used in various fields.

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【Chinatungsten】Container Flush Foundation Types


Container flush foundation types include single type, transversal double type, longitudinal double type and quadruple type.
Container flush foundation belongs to container fixed fitting, playing an important part to ensure safety of container. It is usually welded on the bottom or cover of hatch, and used with single cone or twist lock to fix the bottom container.

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【Chinatungsten】What Is Stainless Steel Square Tube?

Stainless steel square tube, named in accordance with its cross section, is widely applied in conveying fluid, such as oil, gas, natural gas, water, steam, etc.

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【Chinatungsten】Laser Cutting Advantages, Applying in Cutting Stainless Steel Tube


Laser cutting’s advantages contain high efficiency, high precision, les energy, and less chances of warping of the material when it is applied to cut stainless steel tube.

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【Chinatungsten】Modern Stainless Steel Interior Door Lever


Modern stainless steel interior door lever is the perfect addition to contemporary homes with its sleek, clean lines that reflect the current style trends that are so popular in home decorating right now.
The interior door lever is made out of stainless steel, making it resistant to corrosion, knocks, scratches and abrasions. It will be sure to look great in both residential and commercial applications for wooden doors or metal doors.

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【Chinatungsten】Stainless Steel Smart Door Lock Types


Fingerprint lock is an intelligent lock with somatic fingerprint as its identification carrier and means. It is the perfect combination of computer information technology, electronic technology, mechanical technology and modern hardware technology. Generally, the fingerprint lock is composed of two parts: electronic identification and control, mechanical linkage system. The uniqueness and non-reproducibility make it the safest lock among all locks at present.

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【Chinatungsten】Influencing Factors of Thorium Tungsten Wire Drawing


There are some influencing factors of thorium tungsten wire drawing:Blank State,Drawing Die,Lubricant,Drawing Temperature,Deformation Speed,Deformation Degree.

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【Chinatungsten】Tungsten Electrode Types


Tungsten electrode is divided into different types in accordance with the materials of tungsten, including pure tungsten electrode, lanthanated tungsten electrode, cerium tungsten electrode, thoriated tungsten electrode, yttrium tungsten electrode, zirconiated tungsten electrode, silver tungsten electrode and composite tungsten electrode.

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【Chinatungsten】Copper Phosphotungstate


Copper phosphotungstate is a product of reaction between phosphotungstic acid and copper nitrate, mainly used as catalyst for petrochemical oxidative desulfurization, catalytic synthesis of acetyl acetal, tetrahydrofuran, etc..

Copper phosphotungstate catalyzed a series of aldehydes and acetic anhydride synthesis of the corresponding acetyl acetal reaction. Result shows that formaldehyde and acetic anhydride substance ratio is 1:2. Copper phosphotungstate takes amount of aldehyde accounted for only 0.5% (molar ratio) the reaction can be completed in a relatively short period of time, the product yield of 62% to 96%. The catalyst in the presence of ketones and aldehydes at the same time, can selectively react with aldehyde.

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【Chinatungsten】Silver Phosphotungstate Photocatalyst


Silver phosphotungstate photocatalyst is taking silver phosphotungstate as a photocatalyst, since heteropoly acid and its salts has superior catalytic performance, environmental friendliness and other advantages to be concerned a lot, and widely used as acid and alkali, redox or bifunctional catalyst, such as catalytic synthesis of n-butyl acetate, aspirin ect..
Factors for affecting catalytic efficiency of silver phosphotungstate photocatalyst include the utilization efficiency of light, the light-generated electron - hole usage efficiency,  while these factors are depend on the properties of silver phosphotungstate which includes crystal structure, specific surface area, topography and so on. Silver phosphotungstate photocatalyst has two different structures of Keggin and Dawson. Keggin structure has a large external surface area, more surface acid sites and strong thermal stability, insoluble in water and organic solvents, is considered to be a class of ideal solid acid catalyst materials.

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【Chinatungsten】Titanium tungsten powder


Study pointed out one method for preparing titanium tungsten powder of denitration catalyst with the steps like following:
1. Preparation of meta-titanic acid: Respectively add titanyl sulfate solution and dispersant into the thermostatic reactor, stirring and adding carbonate aqueous solution dropwise in a constant temperature, adjusting pH value to a suitable range and keep stirring until obtain solids, then washing, drying the solids to obtain meta-titanic acid particles;
2. Preparation of composite particles: Crushing the meta-titanic acid particles and dissolving in the second reactor with solution containing tungsten, followed by adding Tween 80 and stirring at a constant temperature, then heating to evaporate and obtaining the composite particles;
3.Post-treatment: Drying and calcining the composite particles to obtain titanium tungsten powder.

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Link to other exciting Videos:
【Chinatungsten】Tungsten carbide ball types
https://youtu.be/OeVaSbaykXk
【Chinatungsten】What is tungsten carbide rod
https://youtu.be/1-wMMVhGTXk
【Chinatungsten】Tungsten carbide button types
https://youtu.be/G37k4f0_V7c
【Chinatungsten】carbide tapered bit , tungsten carbide button bit
https://www.youtube.com/watch?v=rj_0SMDe11E
【Chinatungsten】Making carbide woodturning tool
https://www.youtube.com/watch?v=yWSDmxHV7Ds
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【Chinatungsten】Tungsten Trioxide Catalyst


Tungsten trioxide catalyst such as hydrogen desulfurization catalyst, SCR denitration catalyst, photocatalyst are widely used in different area. Tungsten trioxide(WO3) is a kind of important semiconductor material, it has catalytic property.

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Link to other exciting Videos:
【Chinatungsten】Tungsten carbide ball types
https://youtu.be/OeVaSbaykXk
【Chinatungsten】What is tungsten carbide rod
https://youtu.be/1-wMMVhGTXk
【Chinatungsten】Tungsten carbide button types
https://youtu.be/G37k4f0_V7c
【Chinatungsten】carbide tapered bit , tungsten carbide button bit
https://www.youtube.com/watch?v=rj_0SMDe11E
【Chinatungsten】Making carbide woodturning tool
https://www.youtube.com/watch?v=yWSDmxHV7Ds
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【Chinatungsten】Nano Cesium Tungstate


Nano cesium tungstate is a newly developed nano material, appearance is dark blue powder, can be used as transparent insulating powder, it is the best near-infrared absorption inorganic nano material, has the advantages of uniformity and good dispersion property. In the near-infrared area especially wave length is less than 900nm, the insulating property is better than ATO and ITO, insulating rate can reach 95%, visible light transmittance can exceed 70% at wave length 550nm.

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Link to other exciting Videos:
【Chinatungsten】Tungsten carbide ball types
https://youtu.be/OeVaSbaykXk
【Chinatungsten】What is tungsten carbide rod
https://youtu.be/1-wMMVhGTXk
【Chinatungsten】Tungsten carbide button types
https://youtu.be/G37k4f0_V7c
【Chinatungsten】carbide tapered bit , tungsten carbide button bit
https://www.youtube.com/watch?v=rj_0SMDe11E
【Chinatungsten】Making carbide woodturning tool
https://www.youtube.com/watch?v=yWSDmxHV7Ds
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【Chinatungsten】Tungsten Trioxide Hydrogen Reduction

Tungsten trioxide hydrogen reduction is one of the producing methods of tungsten powder. The process is firstly reducing tungsten trioxide to tungsten dioxide under 500~700℃. Secondly, reducing tungsten dioxide to tungsten powder under 700~900℃.

Tungsten is rare and nonferrous metal, it often appears dark gray. During the process of producing nano tungsten powder, high quality nano tungsten trioxide is required which is the most important raw material.

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Link to other exciting Videos:
【Chinatungsten】Tungsten carbide ball types
https://youtu.be/OeVaSbaykXk
【Chinatungsten】What is tungsten carbide rod
https://youtu.be/1-wMMVhGTXk
【Chinatungsten】Tungsten carbide button types
https://youtu.be/G37k4f0_V7c
【Chinatungsten】carbide tapered bit , tungsten carbide button bit
https://www.youtube.com/watch?v=rj_0SMDe11E
【Chinatungsten】Making carbide woodturning tool
https://www.youtube.com/watch?v=yWSDmxHV7Ds
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【Chinatungsten】tungsten copper electrolytic process

Processing In the process of electrolyzation, use a certain proportion of NaCl, KCl, Na2WO4 and CuO4 mixed solution and graphite as el...