Air Products

Economic Aspects. A number of secondary and tertiary acetylenic alcohols and glycols are manufactured by Air Products and Chemicals Co. In 1990, U.S. bulk prices of ethyloctynol, methylbutynol, and tetramethyldecynediol were about 8.35/kg, 3.95/kg, and 8.00/kg, respectively. 

Synthetic emulsion polymers account for approximately 70% of the U.S. consumption of acrylate monomers. Major end uses for these latex polymers are coatings (32%), textiles (17%), adhesives (7%), paper (5%), and floor poHshes (3%). The U.S. producers of acryflc copolymer emulsions include Rohm and Haas, Reichhold, National Starch, Union Carbide, Air Products, Unocal, B. F. Goodrich, and H. B. Fuller. 

Dimethyl Ether. Synthesis gas conversion to methanol is limited by equiUbrium. One way to increase conversion of synthesis gas is to remove product methanol from the equiUbrium as it is formed. Air Products and others have developed a process that accomplishes this objective by dehydration of methanol to dimethyl ether [115-10-6]. Testing by Air Products at the pilot faciUty in LaPorte has demonstrated a 40% improvement in conversion. The reaction is similar to the Hquid-phase methanol process except that a soHd acid dehydration catalyst is added to the copper-based methanol catalyst slurried in an inert hydrocarbon Hquid (26). 

Mixtures of 10 and 20% fluorine ia nitrogen or other inert gases are commercially available ia cylinders and tube trailers from Air Products and Chemicals, Inc. Blends can be safely packaged and stored at high, eg, 13.8 MPa (2000 psi), pressure. Filled with a 20% fluorine blend, tube trailers can contain up to 500 kg of fluorine. Such high pressure mixtures permit larger quantities of fluorine to be safely shipped. 

J. F. Tompkins and co-workers. The Properties and Handling of Fluorine, Technical Report no. HSD-TDR-62-273, Air Products Chemicals, Inc., Allentown, Pa., 1963. 

U.S. production of bromine trifluoride is several metric tons per year mostiy used in oil-weU cutting tools. Air Products and Chemicals, Inc. is the only U.S. producer. The 1992 price was ca 80/kg. 

Inorganic Fluorine Compounds, buUetia, Air Products and Chemicals, Inc., Allentown, Pa., 1974. 

Sulfur hexafluoride was first prepared in 1902 (1). The discovery in 1937 that its dielectric strength is much higher than that of air (2) led to its use as an insulating material for cables, capacitors (3), and transformers (4) (see Insulation,electric). Sulfur hexafluoride has been commercially available as AccuDri, SF (AUiedSignal Inc.) since 1948. It is also produced by Air Products and Chemicals in the United States and by others in Germany, Italy, Japan, and Russia. 

Preparation. In the laboratory, sulfur tetrafluoride is made by combining SCI2 and NaF suspended in acetonitrile at ca 77°C (106). For commercial production, SF is made by direct combination of sulfur with elemental fluorine (107). Commercial appHcations of SF are limited. It is available from Air Products and Chemicals. 

Johnson—Matthey/AESAR group, Aldrich Chemical, and EM Industries, Inc. Ultrahigh purity (99.999%) material is available only from Air Products and Chemicals, Inc. of Allentown, Peimsylvania. The price varies depending on the purity of the material from 25/kg (99%) through 250/kg (99.99%), to 1500—2500/kg (99.999%). Consumption of ZrF in the United States is less than 5000 kg/yr. 

The following companies manufacture organic fluorine compounds by direct fluorination techniques 3M Exfluor Air Products and Chemicals,... 

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