BASF

In 1962 special formula reading machines [41] were constructed and used at BASF Lridwigshafcn. They scanned formulas drawn on transparent grid sheets... 

We are indebted to BASF (Arnhem) for providing a sample of the acetylenic chloride. 

BASF GY70 fiber Basic aluminum acetate... 

Adiponitnle (hexanedinitnle, dicyanobutane, ADN), NC(CH2)4CN, is manufactured principally for use as an intermediate for hexamethylenediarnine (1,6-diaminohexane), which is a principal ingredient for nylon-6,6. However, in 1996, BASF aimounced the development of a process to make caprolactam from adiponitrile (44,45). Caprolactam is used to produce nylon-6. The implementation of this technology could increase the demand for adiponitrile dramatically. 

Adantic Chemical Corp. C. Lever Co. International Dyestuffs Corp. BASF Wyandotte Corp. Dye Specialties,... 

Adantic Chemical Corp. Ameri-can Cyariimid Co. Buffalo Color Corp. Sun Chemical Corp. Leeben Color, Div. of Tricon Colors, Inc. Intema-tional Dyestuffs Corp. BASF Wyandotte Corp. Dye Special-ties, Inc. Mobay Chemical Corp. American Cyariimid Co. C. Lever Co. Buffalo Color Corp. International Dyestuffs Corp. Dye Specialties, Inc. CIBA-GEIGY-Corp. Sun Chemical Corp. 

Nominal MI, g/10 min Hoechst Celanese Celcon Du Pont Delrin BASF Ultraform... 

Supply and demand statistics for 1988 for all regions of the wodd as compiled by SRI International are given in Table 5. The wodd producers of acetal resins and their aimual capacities are Hsted in Table 6 (29). Hoechst Celanese and Ultraform Corporation (a joint venture of Degussa and BASF) have aimounced capacity expansions in the United States to 77,000 t and 16,000 t, respectively both were due in place in 1990. Part of general capacity expansion plans, aimounced by Du Pont for completion in 1991, are beHeved to apply to acetal resins. 

Ma.nufa.cture. AU. manufacturers of butynediol use formaldehyde ethynylation processes. The earliest entrant was BASF, which, as successor to I. G. Farben, continued operations at Ludwigshafen, FRG, after World War II. Later BASF also set up a U.S. plant at Geismar, La. The first company to manufacture in the United States was GAF in 1956 at Calvert City, Ky., and later at Texas City, Tex., and Seadrift, Tex. The most recent U.S. manufacturer is Du Pont, which went on stream at La Porte, Tex., about 1969. Joint ventures of GAF and Hbls in Mad, Germany, and of Du Pont and Idemitsu in Chiba, Japan, are the newest producers. 

Ma.nufa.cture. The principal manufacturers of vinyl ethers are BASF, GAF, and Union Carbide. The first two utilize vinylation of alcohols, whereas the last reportedly uses cracking of acetals. 

Uses. Union Carbide consumes its vinyl ether production in the manufacture of glutaraldehyde [111-30-8J. BASF and GAF consume most of their production as monomers (see Vinyl polymers). In addition to the homopolymers, the copolymer of methyl vinyl ether with maleic anhydride is of particular interest. 

Mitsui Toatsu Chemical, Inc. disclosed a similar process usiag Raney copper (74) shortiy after the discovery at Dow, and BASF came out with a variation of the copper catalyst ia 1974 (75). Siace 1971 several hundred patents have shown modifications and improvements to this technology, both homogeneous and heterogeneous, and reviews of these processes have been pubHshed (76). Nalco Chemical Company has patented a process based essentially on Raney copper catalyst (77) ia both slurry and fixed-bed reactors and produces acrylamide monomer mainly for internal uses. Other producers ia Europe, besides Dow and American Cyanamid, iaclude AUied CoUoids and Stockhausen, who are beheved to use processes similar to the Raney copper technology of Mitsui Toatsu, and all have captive uses. Acrylamide is also produced ia large quantities ia Japan. Mitsui Toatsu and Mitsubishi are the largest producers, and both are beheved to use Raney copper catalysts ia a fixed bed reactor and to sell iato the merchant market. 

In the 1980s cost and availabiUty of acetylene have made it an unattractive raw material for acrylate manufacture as compared to propylene, which has been readily available at attractive cost (see Acetylene-DERIVED chemicals). As a consequence, essentially all commercial units based on acetylene, with the exception of BASF s plant at Ludwigshafen, have been shut down. AH new capacity recendy brought on stream or announced for constmction uses the propylene route. Rohm and Haas Co. has developed an alternative method based on aLkoxycarbonylation of ethylene, but has not commercialized it because of the more favorable economics of the propylene route. 

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