Reference

Lactam

Kuse, Tadao; Setsuda, Tsutomu; Harada, Rokuro (Toray Industries, Inc., Japan). Japan. JP 51033914 B4 22 Sep 1976 Showa, 3 pp. (Japanese). (Japan). CODEN: JAXXAD. CLASS: IC: C07D201-04. APPLICATION: JP 70-118925 26 Dec 1970.Some commonly used reagents like 1310-58-3 and 105-60-2 are used in this experiment. DOCUMENT TYPE: Patent CA Section: 35 (Synthetic High Polymers) Section cross-reference(s): 23 .epsilon.-Caprolactam (I) [105-60-2] was prepd. by Beckmann rearrangement of cyclohexanone oxime (II) [100-64-1] in the presence of a modified silica-alumina catalyst. Thus, 60 g silica-alumina catalyst was impregnated with an aq. soln. contg. 30 g ammonium acid fluoride [1341-49-7] in 270 mL H2O for 3 h, dried 1 h at 100.degree. and calcined at 500.degree. for 5 h. The calcined catalyst was treated further with 6.4 g KOH in H2O for 24 h and dried and calcined as before. II (20 g) was kept at 400.degree. and 40 mm Hg in the presence of 10 g of the catalyst to give I in 81.9% yield. .

Disposal of waste ammoniacal bromate and ammonium bifluoride solutions by evaporation

Disposal of waste ammoniacal bromate and ammonium bifluoride solutions by evaporation. Jones, C. W.; Lewis, G. W.; Martin, L. D. (Georgia Power Co., Atlanta, Ga., USA). Proc. - Int. Water Conf., Eng. Soc. West. Pa., Volume Date 1976, 37, 143-8 (English) 1977. CODEN: PWWPAY. DOCUMENT TYPE: Journal CA Section: 60 (Sewage and Wastes) Section cross-reference(s): 61 It is safe and practicable to dispose ammoniacal bromate solns. (Cu 0.025, NaBrO3 0.03, NH3 0.3%) and hydroxyacetic acid [79-14-1]-HCO2H [64-18-6] solns. contg. (NH4)(HF2) [1341-49-7] by evapn. No air pollution by HF, F-, and SO2 was obsd.