Detail of "13308-51-5"

Reference

Polyalkylene polyamines

Polyalkylene polyamines. Herdle, William Bruce (Union Carbide Corp. , USA). Eur. Pat. 13308-51-5 and 107-15-3 are cas registry numbers. These chemicals are also mentioned in this article. Appl. EP 93434 A2 9 Nov 1983, 34 pp. DESIGNATED STATES: R: BE, DE, FR, GB, IT, SE. (English). (European Patent Organization). CODEN: EPXXDW. CLASS: IC: C08G073-02. APPLICATION: EP 83-104238 29 Apr 1983. PRIORITY: US 82-373726 30 Apr 1982. DOCUMENT TYPE: Patent CA Section: 23 (Aliphatic Compounds) Alkylenediamines were condensed with bifunctional hydroxyalkylene compds., with removal of H2O during the reaction, to give predominantly linear polyalkylene polyamines. Thus H2NCH2CH2NH2 (I) was treated with HOCH2CH2NH2 and a drying agent for 120 min, using a H3PO4 catalyst at 304° and 490 psi, to give 80.3% I conversion to diethylenetriamine and tetraethylenetetramines. .

Metal phosphate preparation by a reaction using boron phosphate

Metal phosphate preparation by a reaction using boron phosphate. Bamberger, Carlos E. (United States Dept. of Energy, USA). U.S. US 4414187 A 8 Nov 1983, 3 pp. (English). (United States of America). 13308-51-5 and 12534-66-6 are cas registry numbers. These chemicals are also mentioned in this article. CODEN: USXXAM. APPLICATION: US 82-379801 19 May 1982. DOCUMENT TYPE: Patent CA Section: 71 (Nuclear Technology) Section cross-reference(s): 49 Synthetic monazite (a mixed lanthanide-actinide orthophosphate) is suggested as a suitable material for long-term storage of nuclear wastes. A simple method of prepg. such a compn. is provided. The method utilizes the reaction of solid BPO4 [13308-51-5] with a solid metal oxide or salt, at an elevated temp. to yield a metal phosphate and a B oxide or salt. Thus, BPO4 was prepd. by slowly firing a syrupy stoichiometric mixt. of H3PO4 and H3BO3 in air and grinding up the solid. Typically, 5.6 g of BPO4 and 9.7 g of CeO2 were ground up and placed in a Pt or SiO2 boat which was transferred to SiO2 tubes. The tube assembly was heated to 1100°. An atm. of Ar was used in the furnace. The gas evolved was passed through a Beckman O analyzer and a wet-test meter. The O anal. and x-ray diffraction and Raman spectroscopy confirmed that CeO2 was quant. converted to CePO4. .