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This report presents a cost analysis of Methyl Chloride production from methanol and hydrogen chloride. The process examined is a typical catalytic vapor phase process. In this process, methanol and anhydrous HCl are combined in vapor phase and passed through a catalyst bed. Reactor vapor outlet is quenched, dried by sulfuric acid scrubbing and then purified to generate high-purity Methyl Chloride. This report was developed based essentially on the following reference(s): (1) "Chloromethanes", Ullmann's Encyclopedia of Industrial Chemistry, 2012; (2) Handbook of Industrial Chemistry and Biotechnology, 2012 Keywords: Chloromethane, R-40, HCC-40, chlorosilanes production
This report presents a cost analysis of Methyl Chloride production from methanol and hydrogen chloride The process examined is a typical catalytic vapor phase process. In this process, methanol and anhydrous HCl are combined in vapor phase and passed through a catalyst bed. Reactor vapor outlet is quenched, dried by sulfuric acid scrubbing and then purified to generate high-purity Methyl Chloride. This report was developed based essentially on the following reference(s): (1) "Chloromethanes", Ullmann's Encyclopedia of Industrial Chemistry, 2012; (2) Handbook of Industrial Chemistry and Biotechnology, 2012 Keywords: Chloromethane, R-40, HCC-40, chlorosilanes production
This report presents a cost analysis of Mixed Methylchlorosilanes production. In this process, methyl chloride and silicon powder are reacted in fluidized bed reactor. The product is then purified for unreacted methyl chloride removal and separated into the different silane monomers by means of multi-stage distillation. This report was developed based essentially on the following reference(s): (1) US Patent 20060063946 A1, issued to Wacker-Chemie in 2006 (2) US Patent 80622483 B2, issued to Dow Corning in 2011 Keywords: Siloxanes, silicone, silanes
This report presents a cost analysis of Ammonium Chloride production from ammonia and hydrogen chloride. The process examined is a typical solution neutralization process. In the process, hydrogen chloride reacts with ammonia, producing Ammonium Chloride crystals, which are centrifuged and dried. The mother liquor from the centrifuge is recycled back to the reactors. This report was developed based essentially on the following reference(s): Keywords: Hydrochloric Acid, Sal Ammoniac, Azane
This report presents a cost analysis of Hydroxypropyl Methyl Cellulose (HPMC) production from cellulose, methyl chloride, and propylene oxide. The process examined is similar to the processes owned Dow Chemical and ICI. In this process, cellulose is alkalized with caustic soda and then mixed with methyl chloride (dissolved in dimethyl ether) and propylene oxide, before passing through an etherification reaction. This report was developed based essentially on the following reference(s): US Patent 7402668, issued to Dow Wolff Cellulosics GmbH in 2008 Keywords: Hydroxypropyl Methyl Cellulose, CMC, Cellulose, Cellulose Ethers, Hoechst
This report presents a cost analysis of Dimethyl Carbonate (DMC) production from methanol. The process examined is a typical oxidative carbonylation process. This process is a non-phosgene alternative for DMC production, in which CO, O2 and methanol react in the presence of copper chloride (CuCI) catalyst. Although reaction occurs in the liquid phase, a heterogeneous-phase mixture forms and the product stream is withdrawn from the reactor in vapor phase. The vapor is partially condensed, treated for recovery of catalyst and then subjected to distillation operations. Unreacted methanol is recovered and recycled to the reactor. Purified Dimethyl Carbonate is obtained after separation of side-product water. This report was developed based essentially on the following reference(s): (1) US Patent 20030236428, issued to General Electric Company (2) US Patent 5685957, issued to Enichem Synthesis in 1997 Keywords: Non-Phosgene Process, Phosgene-Free, Oxidative Carbonylation, Enichem, Eni
Analytical methods used in the Geologic Division laboratories of the U.S. Geological Survey for the inorganic chemical analysis of rock and mineral samples.