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Bayer process

The Columbia Encyclopedia, Sixth Edition

Bayer process procedure for obtaining alumina from the aluminum ore bauxite. The alumina can then be used for various industrial purposes or smelted to provide aluminum. The first step in the process is the mixing of ground bauxite into a solution of sodium hydroxide. By applying steam and pressure in tanks containing the mixture, the bauxite slowly dissolves. The alumina released reacts with the sodium hydroxide to form sodium aluminate. After the contents of the tank have passed through other vessels where the pressure and temperature are reduced and impurities are removed, the solution of... Read more

Kurt Alder
...educated at Berlin and at Kiel. He was on the research staff of the Bayer Dye Works (1936-40) before becoming (1940) professor of chemistry...Otto Diels the 1950 Nobel Prize in Chemistry for discovering a process for the synthesis of complex organic compounds. The Diels-Alder... Read more

They're Playing Our Song
...comedy by Neil Simon (book), Marvin Hamlisch (music), Carole Bayer Sager (lyrics). [ Imperial Theatre, 1,082 perf.] Vernon Gersch...Song; Just for Tonight. The musical carried Broadway's slimming process to an almost anorexic extreme with only two principals and a... Read more

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	Determining silica solubility in Bayer process liquor ; ...precipitation of dissolved silica from Bayer process liquor is essential for the production...in the evaporation building of Bayer processes. The accurate prediction of silica...of the solubility of silica in Bayer process liquor. The resulting correlation... Read more
	Bayer AG's Electrolysis Process Poised for Commercialization ; PROCESS TECHNOLOGY Bayer AG (Leverkusen, Germany...Gestermann, manager of process development for electrolysis at Bayer Material Science. Bayer...cathode) to form water. In Bayer's traditional diaphragm process, dilute HCI solution flows... Read more
	Bayer develops extrusion blow-moulding process for thermo-plastic PU.(Processing) ; Bayer Polymers, USA, has developed a new process that uses thermoplastic...The blow-moulding process offers several benefits, Bayer says, including part...cover. According to Bayer Polymer America's Market...co-inventor of the process, Due to its excellent... Read more
	A right rubber result. (Bayer's new process to polymerize rubber)(Green and Clean Innovations) ; Bayer, the world's largest...introduced a new process to polymerise rubber...The conventional process for manufacturing...rubber particles. Bayer's new process is a single step...recirculated in the process until completely...be incinerated. Bayer is running a pilot... Read more
	Developments in powder processing methods: the Bayer process offers considerable flexibility to control different characteristics of aluminas. (ceramics manufacturing) ; ...systems. Powder synthesis The Bayer process is a large-scale chemical process...routes which often include the Bayer process as an earlier step. Alkoxide and...than calcined aluminas from the Bayer process. There is considerable flexibility... Read more
	Bayer hybrid process finds growing interest in the automotive business.(Injection Moulding) ; Bayer's sheet metal overmoulding process was in the spotlight at the VDI Plastics...printed circuits is another possibility. Bayer says the integration of such functions...be injection moulded in nylon, says Bayer. The grille and the frame are produced... Read more
	Bayer wants to sell Hennecke subsidiary by end of year; Hennecke process machinery no longer core to BMS's future, company says.(international newslines) ; ...2007. Speaking at Bayer AG's 15 March...Hennecke, and this process is ongoing, declining...and other PU processing equipment. It has been part of Bayer for over 30 years...polyurethane chemistry, process technology and...machinery, BMS said. A Bayer spokesperson said... Read more
	INTEGRATING THE FORECASTING PROCESS WITH THE SUPPLY CHAIN: BAYER HEALTHCARE'S JOURNEY ; ...chain integration efforts of Bayer HealthCare Division, which are...Forecasting and Replenishment process ... many products have a built...getting more and more attention at Bayer Group, particularly within Bayer...to integrate the forecasting process with the supply chain management... Read more
	Bayer Polyol Advance.(Bayer AG begins polyether polyols production using continuous process)(Brief Article) ; Bayer has begun polyether polyols production at its Channelview, TX plant, which it says is the world's first using a continuous process. The company converted an existing reactor to use its proprietary...doubling of capacity. The company would not disclose figures. Bayer says the catalyst is about 1,000 ... Read more
	German chemical major Bayer has developed a new process to produce rigid polyurethane foams for insulation applications using biopolyols.(Bioproducts in brief)(Brief article) ; German chemical major Bayer has developed a new process to produce rigid polyurethane foams for insulation applications...senior principle scientist, polyether process development, Bayer MaterialScience. The properties of foams produced using conventional... Read more

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	Process for producing Iron Oxide pigments. (Patent Update).(Bayer Aktiengesellschaft gets US patent for process for preparing iron oxide red pigments)(Brief Article)
	Bayer obtains United States patent.(production process for proteins )(Brief Article)
	Bayer Technology Services and IMA Kilian released the RQ 100-4 NIR.(Process Analysis: Product Introductions)

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