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 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 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 Vinyl Chloride production from ethylene dichloride (EDC). The process examined is a typical thermal cracking process. In this process, ethylene dichloride is thermally cracked in pyrolysis furnaces to produce Vinyl Chloride. Hydrogen chloride is generated as a by-product in the process. This report was developed based essentially on the following reference(s): (1) "Chlorinated Hydrocarbons", Ullmann's Encyclopedia of Industrial Chemistry, 7th edition (2) US Patent 7767869, issued to Vinnolit in 2010 Keywords: Chloroethene, 1,2-Dichloroethane, Vinnolit, OxyVinyls, Thermal Cracking
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
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
Analytical methods used in the Geologic Division laboratories of the U.S. Geological Survey for the inorganic chemical analysis of rock and mineral samples.
This monograph consists of manuscripts submitted by invited speakers who participated in the symposium "Industrial Environmental Chemistry: Waste Minimization in Industrial Processes and Remediation of Hazardous Waste," held March 24-26, 1992, at Texas A&M University. This meeting was the tenth annual international symposium sponsored by the Texas A&M Industry-University Cooperative Chemistry Program (IUCCP). The program was developed by an academic-industrial steering committee consisting of the co-chairmen, Professors Donald T. Sawyer and Arthur E. Martell of the Texas A&M University Chemistry Department, and members appointed by the sponsoring companies: Bernie A. Allen, Jr., Dow Chemical USA; Kirk W. Brown, Texas A&M University; Abraham Clearfield, Texas A&M University; Greg Leyes, Monsanto Company; Jay Warner, Hoechst-Celanese Corporation; Paul M. Zakriski, BF Goodrich Company; and Emile A. Schweikert, Texas A&M University (IUCCP Coordinator). The subject of this conference reflects the interest that has developed in academic institutions and industry for technological solutions to environmental contamination by industrial wastes. Progress is most likely with strategies that minimize waste production from industrial processes. Clearly the key to the protection and preservation of the environment will be through R&D that optimizes chemical processes to minimize or eliminate waste streams. Eleven of the papers are directed to waste minimization. An additional ten papers discuss chemical and biological remediation strategies for hazardous wastes that contaminate soils, sludges, and water.
