Copper Oxychloride
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ScribdTranslationsCopper Oxychloride
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ScribdTranslationsDescription of the production process.
* Theme: Copper Oxychloride
1. Process description.
The main stages of the selected process are described below.
for the production of copper oxychloride:
1. Dissolution of Reactants: the process begins with the dissolution of the
reactants in water. This operation takes place in two ponds of
dissolution: in the first one, pentahydrated copper sulfate is dissolved with
sodium chloride, and in the second, sodium carbonate is added. For the
The first pond yields a 7% NaCl solution and a 12.8% of
CuSO4∙5H2Oh, in the meantime, a solution is achieved for the second pond.
at 8.5% of Na2CO3.
2. Formation and Precipitation of copper oxychloride: once obtained the
solutions of the reactants, they are then transported by gravity to a
stirred pond to complete the chemical reaction. The precipitate
obtained at this stage mainly contains copper oxychloride
desired, but they also precipitate copper sulfate and, to a lesser extent,
sodium sulfate.
3. Filtration and washing: The solution that contains the precipitate obtained in the
The previous stage is driven by gravity towards a continuous filter of
empty, in which the crystals are filtered and washed (first wash and second)
washing). The filtered solution (that is, the one obtained in the filtration
properly so, and that does not contain copper oxychloride as a component
principal), together with the solution from the first wash, is subjected to a
separation by evaporation, where Glauber's salt precipitates to be
obtained as a byproduct of the process.
4. Drying: The cake of copper oxychloride crystals is taken to a dryer.
from trays to remove excess moisture.
5. Packaging: Once the crystals are dry, they are packaged in bags of
polypropylene, in a semi-automatic bagging machine.
2. Physicochemical characteristics of the species
Table 2.1 presents the main properties of the species.
involved in the process.
Table 2.1: Properties of the species involved in the process
PROPERTIES UNITS Sulfate of Chloride Carbonate Oxychloride Sulfate
Copper of o of Copper of
Sodium of Sodium Sodium
Density [kg/m3] 2280 2160 2530 930 1460
15.6°C
Molecular Weight [kg/kmol] 249.69 58.4 105.99 427,13 322.19
pH 4.0 (0.2M) 6.7-7-3 - 7.0- 8.5 7
Capacity [J/molK] - 72.11 108.8 100 (200°K) 128.2
Calorific
Vapor Pressure [mmHg] - 1 (865°C) - - -
Volatility 0 0 0 - 0
Solubility in g/100mL 31.6 36 45.5 - 28.1
Water water
3. Block diagram of the process
Figure 3.1 shows the block diagram of the process under study.
In it, the main unit operations of production can be observed.
of copper oxychloride, which were previously described in Section 1,
Description of the Process.
Figure 3.1: Block Diagram for the process of obtaining copper oxychloride
(10) Rec ic lo Purge
CuSO4∙5H2O
(6) Solution1 (12)
(8) (13)
Sodium chloride Formaotiannd
dissolution of Filter from y Evaporation Sodium sulfate decahydrate
(7) Solution2
Preciptiatoi nof
Reactants Wash it. Solar
(3) H2O ChristheS Sodium sulfate (l)
CuC2l∙3Cu(OH)2(s)
Sodium carbonate (5) H2O (17) H2O 18
CO2(g)
H2O(g)
(14) CuC2l∙3Cu(OH)2(s)
(15) CuC2l∙3Cu(OH)2(s)
Dry of Send it in
(19)
Water vapor