查询词典 hydrogen fluoride

The invention provides an anhydrous hydrogen fluoride production process; reaction raw materials fluorite powder and sulfate are mixed by an external mixer and enter into a converter with jacket; hot air with the temperature of 350 DEG C to 600 DEG C is fed in the jacket; the fluorite powder and the sulfate have chemical reaction and produce hydrogen fluoride; the produced hydrogen fluoride enters into a scrubber from a furnace header to be washed; the washed hydrogen fluoride enters into an intermediate tank from a condenser, and then receives distillation and degasification to prepare the finished product anhydrous hydrogen fluoride; solid residue is emitted from a furnace tail.

本发明提供一种无水氟化氢生产工艺，反应原料萤石粉及硫酸经外混器混合后进入带有夹套的转炉，向夹套内通入350～600℃的热风，萤石粉和硫酸在发生化学反应生成氟化氢，生成的氟化氢气体由炉头进入洗涤塔进行洗涤，洗涤后的氟化氢由冷凝器进入中间槽，然后经过精馏、脱气制得成品无水氟化氢；固体残渣由炉尾排出。

This article main introduction hydrogen fluoride - anhydrous craft law preparation dry process aluminum fluoride craft and control plan.

本文主要介绍氟化氢—无水工艺法制备干法氟化铝工艺及控制方案。

The dry process aluminum fluoride divides into the hydrogen fluoride preparation according to the technical process (including acid to material, fluorspar to give material, hydrogen fluoride reactor) and the aluminum fluoride preparation including the fluid bed, exhaust processing, end product processing.

干法氟化铝按工艺流程分为氟化氢制备（包括酸给料、萤石给料、氟化氢反应炉）及氟化铝制备包括流化床、尾气处理、成品处理。

Guards against the facture and the correlation stipulation based on the air pollution defines, the air pollutant may divide into four big projects, respectively be the gaseity pollutant (including sulfur oxide compound bucket carbon monoxide, nitrogen oxide compound, hydrocarbon, chlorine, gasified hydrogen, fluoride, chlorhydrocarbon and so on), the granular pollutant (including suspended particulate matter, golden bureau coal smoke, black smoke, acid fog, falls dust and so on), two pollutant (refers to pollutant to pass through photochemical reaction in air to have pollution again, including photochemistry fog, photochemistry high oxide compound and so on) and odor matter (including chlorine, hydrogen sulfide, curing methyl, sulfur alcohol type, methyl amines) and so on.

依据空气污染防制法及相关规定所定义，空气污染物可分为四大项目，分别为气状污染物（包括硫氧化物勺一氧化碳、氮氧化物、碳氢化合物、氯气、气化氢、氟化物、氯化烃等）、粒状污染物(包括悬浮微粒、金局煤烟、黑烟、酸雾、落尘等)、二次污染物（指污染物在空气中再经光化学反应而产生之污染，包括光化学雾、光化学性高氧化物等）及恶臭物质(包括氯气、硫化氢、硫化甲基、硫醇类、甲基胺类)等。

For larger systems such as the hydrogen bonded complex between water and hydrogen fluoride, the additional question arises as to where to position the ghost orbitals.

对于较大体系如水和氟化氢形成的氢键络合物，会产生其他问题，如ghost轨道的位置在何处。

Fluoride is a major component of the low hydrogen electrode. It can react with hydrogen during welding to produce hydrogen fluoride, and decrease the hydrogen content of weld bead.

氟化物是低氢系手工电焊条的主要成分之一，在焊接时可与氢反应产生氟化氢，使焊道氢的含量降低。

In the electrolytic exhaust gas of aluminium, the hydrogen fluoride is the main pollutant , so it is to judge one of the important standards up to standard of in electrolytic discharge of aluminum smelter to measure the content that the exhaust gas hits the hydrogen fluoride.

在铝电解烟气中，氟化氢是最主要的污染物，因此检测烟气中氟化氢的含量是判断电解铝厂排放是否达标的重要标准之一。

In order to Shanghai Hongqiao solid waste incineration process, the bag filter dust removal efficiency of 99.5%; to "dry except acid than acid + wet" treatment process, hydrogen chloride removal on the rate of 99% of the sulfur oxidation material could be removed in 95% of hydrogen fluoride could be removed in 90%; for the treatment of heavy metals in the main to take "effective capture" and "low control" measures, and adsorption using activated carbon, activated carbon for mercury, cadmium, removal of heavy metals such as lead up to 90%.

在以上海江桥生活垃圾焚烧过程中，布袋除尘器除尘效率可达99.5%以上；采取"干式除酸＋湿法除酸"处理工艺，对氯化氢的去除效率可达99%、对硫氧化物的去除效率可达95%、对氟化氢的去除效率可达90%；对于重金属的处理主要采取"高效捕集"和"低温控制"措施，并用活性炭进行吸附，活性炭对汞、镉、铅等重金属的去除率可达90%以上。

On the condition of high temperature and high pressure, crystal water of the substance that composing the surface earth was released into the original atmosphere, and the carbonate, vitriol and halide decomposed, the carbon dioxide, sulfureted hydrogen, sulfur dioxide, hydrogen chloride, hydrogen fluoride were released into the atmosphere, too. All these gases composed the original atmosphere.

在熔融状态的高温高压作用下，构成地球表面物质的结晶水排出地表进入原始大气；在高温高压下分解的碳酸盐、硫酸盐、卤化物等产生的二氧化碳、硫化氢、二氧化硫、氯化氢、氟化氢等气体进入原始大气，和水蒸汽一道共同组成原始大气。

Tze Wei of sulphur dioxide, hydrogen chloride, chlorine, hydrogen fluoride and other toxic gases resist sexual stronger.

紫薇对二氧化硫、氯化氢、氯气、氟化氢等有毒气体抗御性较强。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。