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1. (WO2010142174) METHOD FOR PREPARING HIGH PURITY AMMONIA
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2010/142174    International Application No.:    PCT/CN2010/072389
Publication Date: 16.12.2010 International Filing Date: 30.04.2010
IPC:
C01C 1/04 (2006.01), C01B 3/04 (2006.01)
Applicants: WUHAN GAO'AN NEW MATERIAL CO., LTD. [CN/CN]; No.8, Binhu Road, East Lake High-Tech Development District Wuhan, Hubei 430223 (CN) (For All Designated States Except US).
BAO, Jianren [CN/CN]; (CN) (For US Only).
ZENG, Lingqi [CN/CN]; (CN) (For US Only).
ZHU, Zehua [CN/CN]; (CN) (For US Only)
Inventors: BAO, Jianren; (CN).
ZENG, Lingqi; (CN).
ZHU, Zehua; (CN)
Agent: WUHAN SHUAICHENG INTELLECTUAL PROPERTY AGENT LTD; 101 Room, No.8 Guangba Road, Hongshan District Wuhan, Hubei 430072 (CN)
Priority Data:
200910062709.3 12.06.2009 CN
Title (EN) METHOD FOR PREPARING HIGH PURITY AMMONIA
(FR) PROCÉDÉ POUR PRÉPARER DE L'AMMONIAC À PURETÉ ÉLEVÉE
(ZH) 制备高纯氨的方法
Abstract: front page image
(EN)Provided is a method for preparing high purity ammonia, which comprises the following three steps: (1) carrying out catalytic cracking of ammonia to obtain the needed raw material gas (i.e. hydrogen nitrogen mixed gas); (2) purifying the hydrogen nitrogen mixed gas; and (3) synthesizing high purity ammonia using the high purity hydrogen nitrogen mixed gas. In this method, the obtained ammonia with unqualified quality is returned to the ammonia catalytic cracking unit. The whole production system forms an environmentally friendly closed system without any ammonia being discharged to outside, and each step of the method is reduced in cost.
(FR)L'invention concerne un procédé pour préparer de l'ammoniac à pureté élevée, qui comprend les trois étapes suivantes : (1) exécution d'un craquage catalytique de l'ammoniac pour obtenir la matière première gazeuse nécessaire (c'est-à-dire un mélange gazeux hydrogène-azote); (2) purification du mélange gazeux hydrogène-azote ; et (3) synthèse de l'ammoniac à pureté élevée au moyen du mélange gazeux hydrogène-azote à pureté élevée. Dans ce procédé, l'ammoniac obtenu de qualité non qualifiée est renvoyé à l'unité de craquage catalytique de l'ammoniac. Le système de production globale forme un système fermé écologique sans décharge d'ammoniac à l'extérieur, et chacune des étapes est de coût réduit.
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PE, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LR, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: Chinese (ZH)
Filing Language: Chinese (ZH)