As a result of its physical properties, it is particularly suited to being used as a sealing material in vacuum systems and also as bonding material in acoustic transducers. Indium is also widely used in the manufacture of "fusible" materials, a range of alloys which have low melting points and can be used as thermal fuses and solders, Lead-free solder paste, Electronic Conductive Adhesives (ECA), etc.
Powder Size
We are in the market to offer -100 to -600 mesh size indium powder. Typically our indium powder purity is 99.99%. 2Ns-6Ns is available according customer’s request.
Delivery
Short lead times enable you to get your order in time to meet your production schedule.
Monday, October 22, 2007
Indium foil
Indium foil is ideal for creating cryogenic vacuum seals.High quality Indium foil is available in many sizes, or they can be custom made to customers’ requirements. Indium foil is supplied in sheet form.
Dimensions
We make Indium foil sheets in width up to 400mm. We also custom-cut sheets in larger sizes or special shapes. The most requested sizes are 0.1x100x100mm, 0.1x150x150mm, 0.2x100x100mm, etc.
Purity: 99.99%min.
Delivery
Short lead times enable you to get your order in time to meet your production schedule.
Indium wire
Indium wire is widely used to create high vacuum seals in cryogenic apparatus, 1.0mm diameter ideal for making seals where radial space is limited. Diameter
We make a wide range of Indium wire diameters. One of the most requested sizes is 1.0mm, but our available range from 0.5mm to 3.0mm and larger.
Purity: 99.99%min.
Delivery
Short lead times enable you to get your order in time to meet your production schedule.
Vanadium pentoxide
Vanadium pentoxide in the form of flakes is brown color, mainly used in the manufacture of ferrovanadium alloy and other alloys in metallurgy industry.
Vanadium pentoxide powder, is mainly used in the decarbonization and desulphurization in the production of synthetic ammonium; as stains and catalysts in dyeing, glass and ceramics industry; as catalysts in the production of sulphuric acid and in petrochemical industry; used in the manufacture of vanadium compounds for the production of phosphorus fertilizers and nylon.
Specification
Purity: 99%,99.5%
Packing
Vanadium pentoxide powder is packaged in 50kg/iron drum, lined with plastic bag.
Vanadium pentoxide flake is packaged in 250kg/iron drum or as request.
Vanadium pentoxide powder, is mainly used in the decarbonization and desulphurization in the production of synthetic ammonium; as stains and catalysts in dyeing, glass and ceramics industry; as catalysts in the production of sulphuric acid and in petrochemical industry; used in the manufacture of vanadium compounds for the production of phosphorus fertilizers and nylon.
Specification
Purity: 99%,99.5%
Packing
Vanadium pentoxide powder is packaged in 50kg/iron drum, lined with plastic bag.
Vanadium pentoxide flake is packaged in 250kg/iron drum or as request.
Vanadium pentoxide
Vanadium pentoxide in the form of flakes is brown color, mainly used in the manufacture of ferrovanadium alloy and other alloys in metallurgy industry.
Vanadium pentoxide powder, is mainly used in the decarbonization and desulphurization in the production of synthetic ammonium; as stains and catalysts in dyeing, glass and ceramics industry; as catalysts in the production of sulphuric acid and in petrochemical industry; used in the manufacture of vanadium compounds for the production of phosphorus fertilizers and nylon.
Specification
Purity: 99%,99.5%
Vanadium pentoxide powder, is mainly used in the decarbonization and desulphurization in the production of synthetic ammonium; as stains and catalysts in dyeing, glass and ceramics industry; as catalysts in the production of sulphuric acid and in petrochemical industry; used in the manufacture of vanadium compounds for the production of phosphorus fertilizers and nylon.
Specification
Purity: 99%,99.5%
Packing
Vanadium pentoxide powder is packaged in 50kg/iron drum, lined with plastic bag.
Vanadium pentoxide flake is packaged in 250kg/iron drum or as request.
Vanadium pentoxide powder is packaged in 50kg/iron drum, lined with plastic bag.
Vanadium pentoxide flake is packaged in 250kg/iron drum or as request.
Vanadium Pentoxide Catalyst
Vanadium pentoxide catalyst (also named Sulphuric acid catalyst ) suits for that sulphuric acid plants use the contact process to promote the oxidation of SO2 and O2 to give SO3. Based on more than 30 year's experience with sulfuric acid catalyst, our factory can manufacture several types of catalysts in different shapes and sizes, such as S101, S101-2H, S101-3MH, S101-3BZ, S108, S108-2H, S108-3MH, S108-3BZ, S107, S107-2H, S107-3MH, S109, S106. Our manufacturing technique is advanced. The carrier is treated by repulped stock processing, washed by hot concentrated acid, pretreatment of calcinations, and added several rare accessory ingredients, then molded by using advanced patent technology. The performance of our catalysts is excellent, with high activity, low ignition temperature, high mechanical strength, low losses of screening, and long life. As for star ring type of catalyst, it has advantage of large surface area, low pressure drop, and good resistance of dust accumulation.
Sunday, October 7, 2007
Sulphuric acid catalyst
Sulphuric acid catalyst (also named vanadium pentoxide catalyst) suits for that sulphuric acid plants use the contact process to promote the oxidation of SO2 and O2 to give SO3. Based on more than 30 year’s experience with sulfuric acid catalyst, our factory can manufacture several types of catalysts in different shapes and sizes, such as S101, S101-2H, S101-3MH, S101-3BZ, S108, S108-2H, S108-3MH, S108-3BZ, S107, S107-2H, S107-3MH, S109, S106. Our manufacturing technique is advanced. The carrier is treated by repulped stock processing, washed by hot concentrated acid, pretreatment of calcinations, and added several rare accessory ingredients, then molded by using advanced patent technology. The performance of our catalysts is excellent, with high activity, low ignition temperature, high mechanical strength, low losses of screening, and long life. As for star ring type of catalyst, it has advantage of large surface area, low pressure drop, and good resistance of dust accumulation.
1. Broad Temperature Type of Sulfuric Acid Catalyst: S101/S109.
1).Type S101S101 Cylinder; S101-2H(Ring); S101-3MH(Star Ring); S101-3BZ(Three-Ribs Cylinder) Type S101 Catalyst is a medium broad temperature vanadium pentoxide catalyst to promote the oxidation of SO2 and O2 to give SO3, which is developed independently in China. This catalyst has a manufacturing history of over 40 years with high standard quality and steady performance, has reached international advanced levels.This catalyst has advantages of wide applicability, broad range of temperature, high conversion and high mechanical strength. Ring or star ring shaped catalysts have solved some problems with cylinder shaped catalyst, which are small pellets, high pressure drop and high energy consumption, bad resistance of dust accumulation.
2).Type S109 Type S109 catalyst’s operation temperature is much wider, which can be continuously operated in the range of 390℃-620℃. The activity of low temperature and the performance of heat-resistant are much better than traditional medium broad temperature type of catalysts. This catalyst can replace composition using of S101 series and S108 series in double-absorption plants, and much easier in loading and refilling of catalysts.
2. Low Temperature Type Sulfuric Acid Catalyst: S107/S108.
1). Type S107S107 Cylinder; S107-2H (Ring); S107-3MH (Star Ring); S107-3BZ (Three-Rib Cylinder)
2).Type S108S108 Cylinder; S108-H (Ring); S108-3MH (Star Ring); S108-3BZ (Three-Rib Cylinder)
Type S107 Series, S108 Series sulfuric acid catalysts have advantages of low ignition temperature, high conversion, and lowering environmental pollution.
3. Anti-Arsenic Type Catalyst: S106
Type S106 catalysts suit for resource gas from roasting gas contained high Arsenic trioxide (As2O3) 5-50mg/m3 or smelting gas to produce sulphuric acid by contact process. The resistance to poison is good, and its resistance to Arsenic is three times or four times than traditional types of catalysts, and save losses of vanadium 10-30%, and can absorb Arsenic 1 or 2 times more.
4. The sulphuric acid catalyst operation manual
1). Range of Application1). Sulphur iron ore making sulphuric acid
2). Smelts smoke gas making sulphuric acid
3). Sulphur burnt making sulphuric acid.
2). Operating Requirements
1). Type S101, S109 series of broad temperature catalysts suit for every bed of converter.
2). Type S107, S108 series of low temperature catalysts suit for 1/3 top of the first bed to decrease inlet operating temperature, and 4th bed, 5th bed to improve equilibrium conversion and decrease gas emission.
3). Anti-Arsenic Type Catalysts S106 suit for the content of Arsenic 5-50mg/m3 in gas.
4). Install the catalyst beginning at the far side of the converter working back towards the manway. Use the marks on the converter wall as a guide for leveling the catalyst. Avoid walking directly on the catalyst. Use plywood sheets or boards laid on top of the catalyst if access is required across the top of the bed.
5). New catalyst is easy to get damp, so it is better to choose fine days to sift it and load it .Time that catalyst is exposed in air should be as short as possible.
6). Catalysts used in low temperature beds can be moved to high temperature beds, but contrarily it can’t be loaded. New catalysts should be loaded in the surface of each bed, and separated from used catalysts with stainless steel nets.
7). It should inspect the pressure drop of each bed before repairing, and inspect the activity of catalysts in each bed before loading, so that supply some information for screening, loading or removing.3). Star-up and Shut down1). Heating up: Before start-up, heating up with dry air. The rate of heating is 20-30℃/h, but for new catalysts, the rate of heating should be controlled in 10-15℃/h before it reaches 150℃. In the plants using diesel oil for heating, the discontinuous heating method is recommended when the temperature is under 150℃, and make sure it burnt thoroughly in order to prevent the surface of catalysts extracting carbon. While heating, please control the moisture from blower, which should be not higher than 0.1g/Nm3.2). Gas injected: When inlet temperature of 1st bed reaches above 400℃, and inlet temperature of end bed is above 250℃, then the gas can be injected. Initial volume of gas flow is 1/3-1/2 of the total, and the gas concentration below 5% is ok. Then, make sure the exit temperature of 1st bed is not higher than 650℃, and increase the gas concentration and gas flow properly.3).Shut down: For a short-time shut down, it should increase the inlet temperature of 1st bed(increasing 15℃), and close valve. However, for a heavy repair or long-time shut down, it should use dry air above 400℃ to replace the gas in the converter, till the content of SO3 in emission gas is less than 0.03%.
4). Purifying index demanded of catalystsWater, acid mist, mine dust and the arsenical of content will make catalyst curdled and poisoned; it will affect the system resistance and Conversion ratio. The following indexes should be well controlled.
Moisture ≤ 0.lg/Nm3 F ≤ 0.00lg/Nm3
Acid mist ≤ 0.03lg/Nm3 As ≤ 0.00lg/Nm3
Mine dust ≤ 0.005g/Nm3
Link:http://www.hanbillion.com/ProductShow.asp?ArticleID=104
1. Broad Temperature Type of Sulfuric Acid Catalyst: S101/S109.
1).Type S101S101 Cylinder; S101-2H(Ring); S101-3MH(Star Ring); S101-3BZ(Three-Ribs Cylinder) Type S101 Catalyst is a medium broad temperature vanadium pentoxide catalyst to promote the oxidation of SO2 and O2 to give SO3, which is developed independently in China. This catalyst has a manufacturing history of over 40 years with high standard quality and steady performance, has reached international advanced levels.This catalyst has advantages of wide applicability, broad range of temperature, high conversion and high mechanical strength. Ring or star ring shaped catalysts have solved some problems with cylinder shaped catalyst, which are small pellets, high pressure drop and high energy consumption, bad resistance of dust accumulation.
2).Type S109 Type S109 catalyst’s operation temperature is much wider, which can be continuously operated in the range of 390℃-620℃. The activity of low temperature and the performance of heat-resistant are much better than traditional medium broad temperature type of catalysts. This catalyst can replace composition using of S101 series and S108 series in double-absorption plants, and much easier in loading and refilling of catalysts.
2. Low Temperature Type Sulfuric Acid Catalyst: S107/S108.
1). Type S107S107 Cylinder; S107-2H (Ring); S107-3MH (Star Ring); S107-3BZ (Three-Rib Cylinder)
2).Type S108S108 Cylinder; S108-H (Ring); S108-3MH (Star Ring); S108-3BZ (Three-Rib Cylinder)
Type S107 Series, S108 Series sulfuric acid catalysts have advantages of low ignition temperature, high conversion, and lowering environmental pollution.
3. Anti-Arsenic Type Catalyst: S106
Type S106 catalysts suit for resource gas from roasting gas contained high Arsenic trioxide (As2O3) 5-50mg/m3 or smelting gas to produce sulphuric acid by contact process. The resistance to poison is good, and its resistance to Arsenic is three times or four times than traditional types of catalysts, and save losses of vanadium 10-30%, and can absorb Arsenic 1 or 2 times more.
4. The sulphuric acid catalyst operation manual
1). Range of Application1). Sulphur iron ore making sulphuric acid
2). Smelts smoke gas making sulphuric acid
3). Sulphur burnt making sulphuric acid.
2). Operating Requirements
1). Type S101, S109 series of broad temperature catalysts suit for every bed of converter.
2). Type S107, S108 series of low temperature catalysts suit for 1/3 top of the first bed to decrease inlet operating temperature, and 4th bed, 5th bed to improve equilibrium conversion and decrease gas emission.
3). Anti-Arsenic Type Catalysts S106 suit for the content of Arsenic 5-50mg/m3 in gas.
4). Install the catalyst beginning at the far side of the converter working back towards the manway. Use the marks on the converter wall as a guide for leveling the catalyst. Avoid walking directly on the catalyst. Use plywood sheets or boards laid on top of the catalyst if access is required across the top of the bed.
5). New catalyst is easy to get damp, so it is better to choose fine days to sift it and load it .Time that catalyst is exposed in air should be as short as possible.
6). Catalysts used in low temperature beds can be moved to high temperature beds, but contrarily it can’t be loaded. New catalysts should be loaded in the surface of each bed, and separated from used catalysts with stainless steel nets.
7). It should inspect the pressure drop of each bed before repairing, and inspect the activity of catalysts in each bed before loading, so that supply some information for screening, loading or removing.3). Star-up and Shut down1). Heating up: Before start-up, heating up with dry air. The rate of heating is 20-30℃/h, but for new catalysts, the rate of heating should be controlled in 10-15℃/h before it reaches 150℃. In the plants using diesel oil for heating, the discontinuous heating method is recommended when the temperature is under 150℃, and make sure it burnt thoroughly in order to prevent the surface of catalysts extracting carbon. While heating, please control the moisture from blower, which should be not higher than 0.1g/Nm3.2). Gas injected: When inlet temperature of 1st bed reaches above 400℃, and inlet temperature of end bed is above 250℃, then the gas can be injected. Initial volume of gas flow is 1/3-1/2 of the total, and the gas concentration below 5% is ok. Then, make sure the exit temperature of 1st bed is not higher than 650℃, and increase the gas concentration and gas flow properly.3).Shut down: For a short-time shut down, it should increase the inlet temperature of 1st bed(increasing 15℃), and close valve. However, for a heavy repair or long-time shut down, it should use dry air above 400℃ to replace the gas in the converter, till the content of SO3 in emission gas is less than 0.03%.
4). Purifying index demanded of catalystsWater, acid mist, mine dust and the arsenical of content will make catalyst curdled and poisoned; it will affect the system resistance and Conversion ratio. The following indexes should be well controlled.
Moisture ≤ 0.lg/Nm3 F ≤ 0.00lg/Nm3
Acid mist ≤ 0.03lg/Nm3 As ≤ 0.00lg/Nm3
Mine dust ≤ 0.005g/Nm3
Link:http://www.hanbillion.com/ProductShow.asp?ArticleID=104
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