Reference

Titanium-containing molecular sieves

Titanium-containing molecular sieves. Lok, Brent Mei Tak; Marcus, Bonita Kristoffersen; Flanigen, Edith Marie (Union Carbide Corp. , USA). Eur. Pat. Appl. EP 121232 A2 10 Oct 1984, 68 pp. DESIGNATED STATES: R: AT, BE, CH, DE, FR, GB, IT, LI, LU, NL, SE. (English). (European Patent Organization). CODEN: EPXXDW. CLASS: IC: C01B025-45; C01G023-00; B01J029-04; C07C002-54; C07C005-22; C07C005-27; C07C005-41; C07C015-08; C08F004-16; C10G011-04; C10G035-06. APPLICATION: EP 84-103424 28 Mar 1984. PRIORITY: US 83-480738 31 Mar 1983. DOCUMENT TYPE: Patent CA Section: 51 (Fossil Fuels, Derivatives, and Related Products) Section cross-reference(s): 22, 49, 67 Mol. sieves constituted of TiO2, AlO2, and PO2 tetrahedral units are manufd. from, e.g., Ti(OPr-iso)4, pseudoboehmite, H3PO4, and H2O in the presence of Pr4NOH [4499-86-9], Et4NOH [77-98-5], Me4NOH [75-59-2], or Pr2NH [142-84-7] as a template. The adsorption capacities of the calcined mol. sieves are detd. The kinetics of butane [106-97-8] cracking in the presence of the calcined sieves are given.

Formation of nitrosamines under denitrification conditions

Formation of nitrosamines under denitrification conditions. Kaplan, D. L.; Cowburn, S.; Kaplan, A. M. (Army Natick Res. Dev. Labs., MA, USA). Report, NATICK/TR-83/030; Order No. AD-A135541, 38 pp. Avail. NTIS From: Gov. Rep. Announce. Index (U. S.) 1984, 84(5), 67 (English) 1983. DOCUMENT TYPE: Report CA Section: 60 (Waste Treatment and Disposal) Section cross-reference(s): 50, 61 The formation of nitrosamines under denitrification conditions was evaluated as part of the Army's program of pollution abatement. Various amines dimethyl-(I) [124-40-3], diethanol- [111-42-2], dipropyl- [142-84-7], and dibutylamine [111-92-2] were evaluated in batch and/or continuous culture microbial system under anaerobic conditions with high NO3- loads. With the exception of I, the amines do not form detectable concns. of the corresponding nitrosamines in the alk. denitrification systems. N-Nitrosodimethylamine (II) [62-75-9] is detected in ppb concns. in many of these systems. The formation of II is apparently not biol. mediated in the batch systems. However, the reason for its formation in the continuous systems is not clear. The contribution of microbially produced catalysts and the role of the intracellular environment in the reactions is discussed.