chamber process การใช้

• Prior to 1900, most sulfuric acid was manufactured by the lead chamber process.
• The recovery and reuse of oxides of nitrogen was an important economic consideration in the operation of a chamber process plant.
• As late as 1940, up to 50 % of sulfuric acid manufactured in the United States was produced by chamber process plants.
• So robust was the process that as late as 1946, the chamber process still accounted for 25 % of sulfuric acid manufactured.
• It is widely produced with different methods, such as contact process, wet sulfuric acid process, lead chamber process and some other methods.
• Later refinements to the lead chamber process by French chemist Joseph Louis Gay-Lussac and British chemist John Glover improved concentration to 78 %.
• 1746 : A sulphuric acid factory is set up at Steelhouse Lane to use the lead chamber process invented by its co-founder John Roebuck.
• Nonetheless, McCormick's time is running out, as his body starts to age rapidly because the suspended animation chamber process was not entirely successful.
• G鰐tingen he was classified in 1949 a casting Chamber process as repatriated entnazifiziert and to a review procedure before the casting Chamber Hildesheim as a fellow traveler.
• It is a colourless solid that is used industrially in the production of caprolactam, and was formerly part of the lead chamber process for producing sulfuric acid.
• After several refinements, this method, called the lead chamber process or " chamber process ", remained the standard for sulfuric acid production for almost two centuries.
• After several refinements, this method, called the lead chamber process or " chamber process ", remained the standard for sulfuric acid production for almost two centuries.
• In addition to being a far more economical process for producing concentrated sulfuric acid than the previous lead chamber process, the contact process also produces sulfur trioxide and oleum.
• With the development of the lead chamber process in 1746 and the Leblanc process, allowing large-scale production of sulfuric acid and sodium carbonate, respectively, chemical reactions became implemented into the industry.
• The lead chamber process for sulfuric acid production was abandoned partly because it could not produce sulfur trioxide or concentrated sulfuric acid directly due to corrosion of the lead, and absorption of NO 2 gas.
• "Chamber acid " and " tower acid " were the two concentrations of sulfuric acid produced by the lead chamber process, chamber acid being the acid produced in lead chamber itself ( < 70 % to avoid contamination with nitrosylsulfuric acid ) and tower acid being the acid recovered from the bottom of the Glover tower.
• These customers rely on KLA-Tencor s inline wafer and IC defect monitoring, review and classification; reticle defect inspection and metrology; packaging and interconnect inspection; critical dimension ( CD ) metrology; pattern overlay metrology; film thickness, surface topography and composition measurements; measurement of in-chamber process conditions, wafer shape and stress metrology; computational lithography tools and overall yield and fab-wide data management and analysis systems.