SU1248956A1 - Method of producing copper ammoniate - Google Patents

Description

The invention relates to inorganic chemistry, in particular, to methods for producing copper ammoniates, which are used in the production of copper salts, catalysts, as well as in analytical practice.

The purpose of the invention is to simplify the process, improve working conditions and reduce the consumption of ammonia agent.

Example 1. In a porcelain dish at ambient temperature, 20 g of metallic copper (0.3148 mol), 71.84 g of ammonium carbonate (NH JjCOj HjO (0.6296 mol), and 3 ml of desalted water (0.2 mol) are mixed with a spreader. Mol. The average ratio of metallic copper to ammonium carbonate and water is 1: 2: 0.2. As a result of mixing, the reaction mixture is heated and a crystalline product of bright blue color is formed directly in the solid phase in 15-20 minutes. x-ray phase analysis obtained single-phase ammonium carbonate of copper composition

Si (mnz) 4Soz.

Example 2. In a porcelain dish, 20 g (0.3148 mol) of metallic copper, 97.05 g (1.2591 mol) of ammonium acetate NH4CH3COO and 3 ml of desalted water are mixed with a spatula. The molar ratio of metallic copper to ammonium acetate and water is 1: 4: 0.5. As a result of mixing, the components interact directly in the solid phase and after 15-20 minutes a crystalline product of mauve color is formed. C (S), (СНзСОО) 2-Yield 75 g

The results of chemical analysis.

Found, wt.%: C ++ 25,23; INN 26.91; SNSOO47,86 (calculated by the differenceD

Calculated by wt.%: Si ++ 25.46; YNZ 27.25; СНЗСОО 47.29.

The results of all analyzes are converted to anhydrous substances.

Example 3. In a porcelain dish, 20 g (0.3148 mol) of metallic copper and 44.73 g (0.3148. Mol) of ammonium oxalate are mixed with a spatula. When mixing

1C ° 20 (NH4) iC03- HjO (hard salt) 71.8ij1: 2

2Си 20NHtCHjCOO (hard catfish) 97,05l: i

3Cu ° 20 (NH "), CjOi (solid salt) 44.731: 1

4Cu ° 20NHi | Cl (hard salt) 67.41: 4

Compiled by E. Naumova

Editor N. YatsolaTehred I. VeresKorrektor M. Samborska

Order 4189/2 Circulation 450 Subscription

VNIIPI USSR State Committee

for inventions and discoveries

113035, Moscow, Zh-35, Raushsk nab. 4/5

Branch PPP "Patent, Uzhgorod, st. Project, 4

0

five

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five

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the mixture was moistened with water (5.7 ml). The molar ratio of metallic copper to ammonium oxalate and water is 1: 1: 1. As a result of mixing, the components are directly mixed in the solid phase and after 15-20 minutes a blue crystalline product is formed. C (C) 3C2O4. Product yield 61 g

The results of chemical analysis.

Found, wt.%: C 33.85; YHL 17.45; C2O4 48.05.

Calculated by wt.%: Si ++ 34,24; NHa 18.32; C2O4 47.43.

Example 4. In a porcelain dish, 20 g (0.3118 mol) of metallic copper are mixed with 67.4 g (1.2589 mol) of ammonium chloride and 6 ml of desalted water. The molar ratio of metallic copper to ammonium chloride and water is 1: 4: 1. As a result of the interaction of a mixture of solid starting components, a blue crystalline product is formed. C (MNZ) 4 СЬ- Output of the finished product 60 g.

Found May. %: C ++ 31.18; INS 33.81; All 34, 22.

Calculated by wt.%: Si ++ 31.37; NHa 33.57; CE 35.05.

A necessary and sufficient condition to simplify the process of obtaining copper ammoniates, improving working conditions, eliminating wastewater is the mixing of metallic copper and crystalline ammonium salts in the presence of water at a molar ratio of 1:: (1-4) :( 0.2 -one). According to the proposed method, crystalline products are obtained, which partially dissolve in water: ammonium carbonate Cu (LiH3) 4 CO2 when heated to 80-90 ° C in an aqueous medium is hydrolyzed to form basic carbonate methane Cu (OH) 2-CuCOj. In the process of heat treatment at 200-400 ° C, copper ammoniases decompose to form fine powders of copper oxides.

These examples are presented in the table.

100

Stochlometric flow

Cu (NH}) 4 (CHjCOO) Cu (NH ,.) ,, CjOi

100

100

Single phase product of composition 100 Cu (NH,). J Cl2

Claims (2)

1. METHOD FOR PRODUCING COPPER AMMONIACATE comprising the interaction of copper and ammonia-containing components, characterized in that, in order to simplify the method and improve working conditions, metallic copper and a crystalline ammonium salt are subjected to interaction. 2. The method according to π. 1, characterized in that the interaction is carried out in the presence of water, taken in a molar ratio to metallic copper, equal to (0.2-1): 1, respectively. (/ FROM N £ a about a