Detail of "10196-04-0"

Reference

Removal of nitrogen oxides from flue gas

Removal of nitrogen oxides from flue gas. Kuse, Tadao; Goto, Toshio; Ohto, Katsufumi; Takeyama, Tetsu; Matsumura, Kiichiro (Toray Industries, Inc., Japan). Japan. Kokai JP 51059066 22 May 1976 Showa, 5 pp. (Japanese). (Japan). CODEN: JKXXAF. CLASS: IC: B01D053-34. APPLICATION: JP 74-133107 21 Nov 1974. DOCUMENT TYPE: Patent CA Section: 59 (Air Pollution and Industrial Hygiene) A NOx-contg. flue gas is contacted with an aq. sulfite soln. (pH <5) at >50.degree. to reduce the NOx to N2. Optionally, for a flue gas contg. NOx and SOx, the gas is further treated with a soln. contg. NH3 or alkali metal hydroxide to remove SOx after treating with the sulfite soln. Thus, a mixed gas contg. NO2 2355, SO2 2250 ppm, and balance He at a rate of 2 L/min was passed through 7.5% aq. (NH4)2SO3 [10196-04-0] soln. at 70.degree.. The NOx removal and redn. were 76.7 and 68.0%, resp.

Controlling the molecular weight of polycarbonates using ammonia or ammonia compounds

Controlling the molecular weight of polycarbonates using ammonia or ammonia compounds. Baggett, Joseph McClendon (Dow Chemical Co., USA). U.S. US 4059566 22 Nov 1977, 4 pp. (English). (United States of America). CODEN: USXXAM. CLASS: IC: C08G063-62. NCL: 260047000XA. APPLICATION: US 76-704151 12 Jul 1976. DOCUMENT TYPE: Patent CA Section: 35 (Synthetic High Polymers) The mol. wt. of arom. polycarbonates prepd. by interfacial polymn. was controlled by adding 1.0-7.0% NH3 or NH4 compds. to the reaction mixt. Thus, a bisphenol A-phosgene copolymer [25971-63-5] prepd. interfacially in caustic soln. in the presence of Et3N catalyst had mol. wt. 28,033 in the presence of, and >100,000 in the absence of, 2.0% (NH4)2SO3 [10196-04-0].