C01C1/00	7	Ammonia; Compounds thereof {(C01C3/08, C01C3/14, C01C3/16, C01C3/20 take precedence)}<br><br><u>NOTE</u><br><br> Complex ammine salts, e.g. [Pd(NH3)4]Cl2, are  also classified in the relevant groups of subclasses C01D&#160;-&#160;C01G, according to the metal	C01C1/00	C01C1/00		135
C01C1/003	8	{Storage or handling of ammonia}	C01C1/00	C01C1/00		87
C01C1/006	9	{making use of solid ammonia storage materials, e.g. complex ammine salts}	C01C1/00	C01C1/00		122
C01C1/02	8	Preparation, {purification} or separation of ammonia	C01C1/02	C01C1/02		439
C01C1/022	9	{Preparation of aqueous ammonia solutions, i.e. ammonia water}	C01C1/02	C01C1/02		544
C01C1/024	9	{Purification}	C01C1/02	C01C1/02		420
C01C1/026	9	{Preparation of ammonia from inorganic compounds}	C01C1/02	C01C1/02		415
C01C1/028	10	{from ammonium sulfate or sulfite}	C01C1/02	C01C1/02		121
C01C1/04	9	Preparation of ammonia by synthesis (preparation or purification of gas mixtures for ammonia synthesis C01B3/025)	C01C1/04	C01C1/04		702
C01C1/0405	10	{from N2 and H2 in presence of a catalyst}	C01C1/04	C01C1/04		720
C01C1/0411	11	{characterised by the catalyst}	C01C1/04	C01C1/04		1006
C01C1/0417	11	{characterised by the synthesis reactor, e.g. arrangement of catalyst beds and heat exchangers in the reactor (arrangement of several reactors C01C1/0405; fixed-bed reactors in general B01J8/02)}	C01C1/04	C01C1/04		524
C01C1/0423	12	{Cold wall reactors}	C01C1/04	C01C1/04		165
C01C1/0429	12	{Fluidized or moving bed reactors}	C01C1/04	C01C1/04		11
C01C1/0435	12	{Horizontal reactors}	C01C1/04	C01C1/04		18
C01C1/0441	12	{Reactors with the catalyst arranged in tubes}	C01C1/04	C01C1/04		32
C01C1/0447	11	{Apparatus other than synthesis reactors}	C01C1/04	C01C1/04		80
C01C1/0452	12	{Heat exchangers}	C01C1/04	C01C1/04		115
C01C1/0458	11	{Separation of NH3(during purge gas treatment C01C1/0476)}	C01C1/04	C01C1/04		106
C01C1/0464	12	{by absorption in liquids, e.g. water}	C01C1/04	C01C1/04		34
C01C1/047	12	{by condensation}	C01C1/04	C01C1/04		91
C01C1/0476	11	{Purge gas treatment, e.g. for removal of inert gases or recovery of H2}	C01C1/04	C01C1/04		115
C01C1/0482	11	{Process control; Start-up or cooling-down procedures}	C01C1/04	C01C1/04		202
C01C1/0488	11	{Processes integrated with preparations of other compounds, e.g. methanol, urea or with processes for power generation}	C01C1/04	C01C1/04		356
C01C1/0494	10	{using plasma or electric discharge}	C01C1/04	C01C1/04		86
C01C1/08	9	Preparation of ammonia from nitrogenous organic substances	C01C1/08	C01C1/08		291
C01C1/083	10	{from molasses (treatment of molasses in general C13B50/006)}	C01C1/08	C01C1/08		11
C01C1/086	10	{from urea}	C01C1/08	C01C1/08		379
C01C1/10	9	Separation of ammonia from ammonia liquors, e.g. gas liquors {(as part of the ammonia synthesis process C01C1/04)}	C01C1/10	C01C1/10		647
C01C1/12	9	Separation of ammonia from gases and vapours {(as part of the ammonia synthesis process C01C1/04)}	C01C1/12	C01C1/12		649
C01C1/14	10	Saturators	C01C1/14	C01C1/14		7
C01C1/16	8	Halides of ammonium	C01C1/16	C01C1/16		64
C01C1/162	9	{Ammonium fluoride}	C01C1/16	C01C1/16		237
C01C1/164	9	{Ammonium chloride}	C01C1/16	C01C1/16		824
C01C1/166	9	{Ammonium bromide}	C01C1/16	C01C1/16		14
C01C1/168	9	{Ammonium iodide}	C01C1/16	C01C1/16		9
C01C1/18	8	Nitrates of ammonium	C01C1/18	C01C1/18		359
C01C1/185	9	{Preparation}	C01C1/18	C01C1/18		354
C01C1/20	8	Sulfides; Polysulfides	C01C1/20	C01C1/20		43
C01C1/22	8	Sulfites of ammonium	C01C1/22	C01C1/22		69
C01C1/24	8	Sulfates of ammonium (C01C1/14 takes precedence)	C01C1/24	C01C1/24		1119
C01C1/242	9	Preparation from ammonia and sulfuric acid or sulfur trioxide	C01C1/242	C01C1/242		770
C01C1/244	9	Preparation by double decomposition of ammonium salts with sulfates	C01C1/244	C01C1/244		286
C01C1/245	9	Preparation from compounds containing nitrogen and sulfur	C01C1/245	C01C1/245		48
C01C1/246	10	from sulfur-containing ammonium compounds	C01C1/246	C01C1/246		82
C01C1/247	11	by oxidation with free oxygen	C01C1/247	C01C1/247		166
C01C1/248	9	Preventing coalescing or controlling form or size of the crystals	C01C1/248	C01C1/248		162
C01C1/249	9	Deacidifying {or drying} the crystals	C01C1/249	C01C1/249		85
C01C1/26	8	Carbonates or bicarbonates of ammonium	C01C1/26	C01C1/26		346
C01C1/28	8	Methods of preparing ammonium salts in general<br><br><u>NOTE</u><br><br>This group does not cover ammonium salts of complex acids (other than complex cyanides) containing a metal in the anion, which are covered by the relevant groups of subclasses C01D&#160;-&#160;C01G, according to the metal.<br>Salts of polybasic acids with ammonium and a metal as cations are classified as though the ammonium were hydrogen.	C01C1/28	C01C1/28		94
C01C3/00	7	Cyanogen; Compounds thereof	C01C3/00	C01C3/00		44
C01C3/001	8	{Preparation by decomposing nitrogen-containing organic compounds, e.g. molasse waste or urea (by distillation of carbamates C01C3/02, C01C3/08, C01C3/14, C01C3/16; by decomposing formamide or ammonium formate C01C3/0204)}	C01C3/00	C01C3/00		44
C01C3/002	8	{Synthesis of metal cyanides or metal cyanamides from elementary nitrogen and carbides}	C01C3/00	C01C3/00		614
C01C3/003	8	{Cyanogen}	C01C3/00	C01C3/00		91
C01C3/004	8	{Halogenides of cyanogen}	C01C3/00	C01C3/00		143
C01C3/005	8	{Thiocyanogen}	C01C3/00	C01C3/00		3
C01C3/006	8	{Sulfurdicyanide}	C01C3/00	C01C3/00		
C01C3/007	8	{Ammonium cyanide}	C01C3/00	C01C3/00		4
C01C3/008	8	{Cyanazide}	C01C3/00	C01C3/00		3
C01C3/02	8	Preparation, {separation or purification} of hydrogen cyanide {(C01C3/001 takes precedence)}	C01C3/02	C01C3/02		84
C01C3/0204	9	{from formamide or from ammonium formate}	C01C3/02	C01C3/02		95
C01C3/0208	9	{Preparation in gaseous phase}	C01C3/02	C01C3/02		68
C01C3/0212	10	{from hydrocarbons and ammonia in the presence of oxygen, e.g. the Andrussow-process}	C01C3/02	C01C3/02		157
C01C3/0216	11	{characterised by the catalyst used}	C01C3/02	C01C3/02		137
C01C3/022	11	{Apparatus therefor}	C01C3/02	C01C3/02		29
C01C3/0225	12	{characterised by the synthesis reactor}	C01C3/02	C01C3/02		77
C01C3/0229	10	{from hydrocarbons and ammonia in the absence of oxygen, e.g. HMA-process}	C01C3/02	C01C3/02		27
C01C3/0233	11	{making use of fluidised beds, e.g. the Shawinigan-process}	C01C3/02	C01C3/02		143
C01C3/0237	10	{from carbon monoxide and ammonia}	C01C3/02	C01C3/02		69
C01C3/0241	10	{from alcohols or aldehydes}	C01C3/02	C01C3/02		64
C01C3/0245	10	{from organic nitriles, e.g. acetonitrile}	C01C3/02	C01C3/02		33
C01C3/025	10	{by using a plasma}	C01C3/02	C01C3/02		58
C01C3/0254	9	{from cyanates or from thiocyanates}	C01C3/02	C01C3/02		31
C01C3/0258	9	{from cyanamides or derivatives thereof}	C01C3/02	C01C3/02		7
C01C3/0262	9	{from cyanides}	C01C3/02	C01C3/02		39
C01C3/0266	10	{from simple alkali or alkaline earth metal cyanides}	C01C3/02	C01C3/02		6
C01C3/027	11	{Alkali metal cyanides}	C01C3/02	C01C3/02		27
C01C3/0275	11	{Alkaline earth metal cyanides}	C01C3/02	C01C3/02		10
C01C3/0279	10	{from ammonium cyanide}	C01C3/02	C01C3/02		1
C01C3/0283	10	{from simple or complex cyanides of the noble metals}	C01C3/02	C01C3/02		3
C01C3/0287	10	{from simple or complex cyanides of other transition metals, e.g. from iron cyanides}	C01C3/02	C01C3/02		15
C01C3/0291	10	{from simple or complex cyanides of other metals}	C01C3/02	C01C3/02		1
C01C3/0295	9	{Purification}	C01C3/02	C01C3/02		39
C01C3/04	9	Separation from gases	C01C3/04	C01C3/04		109
C01C3/06	8	Stabilisation of hydrogen cyanide	C01C3/06	C01C3/06		30
C01C3/08	8	Simple or complex cyanides of metals {(C01C3/001, C01C3/002 take precedence)}	C01C3/08	C01C3/08		269
C01C3/10	9	Simple alkali metal cyanides	C01C3/10	C01C3/10		316
C01C3/11	9	Complex cyanides	C01C3/11	C01C3/11		170
C01C3/12	9	Simple or complex iron cyanides	C01C3/12	C01C3/12		808
C01C3/14	8	Cyanic {or isocyanic} acid; Salts thereof {(C01C3/001 takes precedence)}	C01C3/14	C01C3/14		75
C01C3/145	9	{Isocyanic acid; Salts thereof}	C01C3/14	C01C3/14		12
C01C3/16	8	Cyanamide; Salts thereof ({C01C3/001, C01C3/002 takes precedence}; dicyandiamide C07C279/28)	C01C3/16	C01C3/16		249
C01C3/18	9	Calcium cyanamide	C01C3/18	C01C3/18		192
C01C3/20	8	Thiocyanic acid; Salts thereof {(C01C3/001 takes precedence)}	C01C3/20	C01C3/20		406
