泵业铂族金属有哪些主要用途?
铂族金属应用非常广泛,现代最主要的应用领域是汽车工业、珠宝首饰和金融业、石化工业、电子工业，玻璃工业、医药卫生、能源及环境保护等。

(1)首饰和金融方面的应用
    铂族金属银白光亮的外表、稀少和昂贵的价格,使其在西方的珠宝首饰业及私人货币储备方面得到广泛利用。近年来，铂和黄金、白银一样，以锭、棒或币的形式开始在金融市场流通，作为硬通货储备或投资。
(2)用以制作国际标准量器
    质量的国际标准“千克”和长度的国际标准“米”原器都是由90%铂和10%铱的合金制成的，从一183~十630°C的国际温标，是由铂丝制成的电阻温度计标定的。
(3)在现代工业中的应用
    ①汽车工业。铂的最大用户是汽车工业。利用铂族金属高的催化活性和稳定性,汽车尾气通过一个含铂、钯、铑的催化剂装置可使其中的碳氢化合物、一氧化碳及氮的氧化物转变为无害的化合物，仅1988年西方用于制造汽车催化剂的铂族金属就达45吨。
    ②玻璃及玻璃纤维工业。利用铂族金属的高熔点、高温抗氧化性、良好的高温强度及抗熔融玻璃腐蚀不污染玻璃的化学惰性，制造弥散强化铂、铂铑合金或用铂包覆钼或其他金属的坩埚,用于熔炼优质或特种玻璃。此外，至今只有铂铑合金可作生产玻璃纤维的坩埚漏板材料。优质大功率激光器的心脏部件——单晶宝石的熔点在2000左右，只能用铱或其他铂族金属的坩埚熔炼。
    ③化学化工、石油及有色冶金工业。化学工业中铂族金属的最主要用途是用铂能合金网在氨氧化塔中催化氨氧化为NO,进而用NO制造硝酸、化肥和炸药。
    石油化学工业中用含铂0.2%~0.7%的A12或沸石为催化剂进行石油重整，生产抗爆性良好的高辛烷(92%以上)汽油。石化工

业中其他化工产品的提纯、氧化、脱氢、异构.合成等方面也广泛使用铂、钯、铑、铱、钌的各种催化剂。
    铂族金属或镀、涂铂族金属的阳极在化学工业中广泛用于一些强氧化性化学试剂的生产过程。
    用铂作催化剂的气体扩散电极在重有色金属电积中代替普遍使用的铅阳极和铅锑阳极，能节省大量电能。
    此外,试验室各种坩埚、电极及其他器皿，很多是由铂及铂族金属合金制作的。
    ④电器工业。利用铂族金属特别是含铂触头接点材料,常是其他材料无法代替的。由于其导电性好、散热快、耐磨及电弧放电或火花放电时抗氧化烧损及抗腐蚀性好,不易熔焊或黏结，故常用于要求十分可靠的工作环境和各种精密仪器及仪表。利用铂族金属及其合金在苛刻条件下稳定的电性能，及耐连续受滑线接触摩擦等性质，可用于各类精密电位器绕组及电阻应变栅。
    ❺铂族金属新材料的应用。铂族金属新材料的不断出现，对有关科技领域产生了重大影响。近20年来，铂族金属催化剂以石油精炼和石油化学为轴心，应用范围不断扩展，在以汽车废气净化催化剂为代表的公害防治、环境保护、非晶态合金催化剂、接触燃烧催化剂、光解制氢、煤直接液化等.系列领域得到广泛应用。渣浆泵厂家
(4)在高新技术方面的应用
    铂族金属在生物工程航天技术、信息技术、激光技术、自动化技术等高新技术方面应用日益广泛。

What are the main uses of platinum group metals in pump industry?

Platinum group metals are widely used in many fields, such as automobile industry, jewelry and finance industry, petrochemical industry, electronic industry, glass industry, medicine and health, energy and environmental protection.

(1) jewelry and financial applications

Platinum group metal silver is widely used in jewelry industry and private currency reserve in the West due to its bright appearance, rarity and high price. In recent years, platinum, like gold and silver, began to circulate in the financial market in the form of ingots, sticks or coins as hard currency reserve or investment.

(2) it is used to make international standard gauge

The international standard "kilogram" of mass and the international standard "meter" of length are both made of 90% platinum and 10% iridium alloy. The international temperature scale from 183 ° C to 10630 ° C is calibrated by a resistance thermometer made of platinum wire.

(3) application in modern industry

① automobile industry. The largest user of platinum is the automotive industry. With the high catalytic activity and stability of platinum group metals, hydrocarbons, carbon monoxide and nitrogen oxides in automobile exhaust can be transformed into harmless compounds through a catalyst device containing platinum, palladium and rhodium. In 1988 alone, 45 tons of platinum group metals were used to manufacture automobile catalysts in the West.

② glass and glass fiber industry. By using the high melting point, high temperature oxidation resistance, good high temperature strength of platinum group metals and chemical inertness of anti melting glass without polluting the glass, a crucible of dispersion strengthened platinum, platinum rhodium alloy or platinum coated molybdenum or other metals is made, which is used for smelting high-quality or special glass. In addition, up to now, only platinum rhodium alloy can be used as the crucible leakage plate material for the production of glass fiber. The melting point of single crystal gem, the heart part of high-quality high-power laser, is about 2000. It can only be melted in the crucible of iridium or other platinum group metals.

③ chemical, petroleum and non-ferrous metallurgical industries. In chemical industry, platinum group metals are mainly used to catalyze ammonia oxidation to no in ammonia oxidation tower with platinum alloy mesh, and then make nitric acid, fertilizer and explosive with No.

In the petrochemical industry, A12 or zeolite containing 0.2% ~ 0.7% platinum is used as catalyst for petroleum reforming to produce high octane (over 92%) gasoline with good antiknock performance. Stone chemical industry

Various catalysts of platinum, palladium, rhodium, iridium and ruthenium are widely used in purification, oxidation, dehydrogenation, isomerization and synthesis of other chemical products in the industry.

Platinum group metal or anode coated with platinum group metal are widely used in the production process of some strong oxidizing chemical reagents in the chemical industry.

The gas diffusion electrode with platinum as catalyst can replace the commonly used lead anode and lead antimony anode in heavy non-ferrous metal electrowinning, which can save a lot of electric energy.

In addition, many crucibles, electrodes and other utensils in the laboratory are made of platinum and platinum group metal alloys.

④ electrical industry. The use of platinum group metals, especially contact materials containing platinum, is often irreplaceable by other materials. Because of its good conductivity, fast heat dissipation, wear resistance, anti-oxidation and anti-corrosion during arc discharge or spark discharge, it is not easy to weld or bond, so it is often used in a very reliable working environment and various precision instruments and meters. It can be used in all kinds of precision potentiometer winding and resistance strain gate by using the stable electrical properties of platinum group metal and its alloy under harsh conditions and the properties of resistance to continuous contact and friction of sliding wire.

Application of new materials of platinum group metals. The continuous emergence of new materials of platinum group metals has a significant impact on the field of science and technology. In the past 20 years, platinum group metal catalysts have been widely used in a series of fields, such as pollution prevention, environmental protection, amorphous alloy catalyst, contact combustion catalyst, photolysis hydrogen production, direct coal liquefaction, etc., with petroleum refining and petrochemistry as the axis and expanding application scope. Slurry pump manufacturer

(4) application in high and new technology

Platinum group metals are widely used in high and new technologies such as bioengineering, aerospace technology, information technology, laser technology and automation technology.