Aluminum alloy fluorine-free and cod-free three-in-one flat-gloss pre-treatment chemical recovery system
A recovery system and a three-in-one technology, applied in the field of aluminum alloy fluorine-free and COD-free three-in-one flat-light pre-treatment agent recovery system, can solve the problems of worsening the difficulty of wastewater treatment, large amount of agents, and long time consumption, etc., to achieve the solution of fluorine pollution and COD exceed the standard, improve the surface quality and reduce the production cost
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Embodiment 1
[0083] Example group 1-production of three-in-one flat material
[0084] The formula and working index of each tank are:
[0085] 1# Three-in-one flat light tank: Ferric chloride, hydrogen peroxide, nitric acid, hydrochloric acid and nonylphenol polyoxyethylene ether are added as shown in Table 1, the balance is water; working temperature is normal temperature, processing time is 5 minutes, trickle 1 minute;
[0086] category
Example 1-1
Example 1-2
Example 1-3
Ferric chloride
2g / L
3g / L
4g / L
Hydrogen peroxide (50%)
10g / L
10g / L
10g / L
Nitric acid
80g / L
80g / L
80g / L
hydrochloric acid
65g / L
65g / L
65g / L
Polyoxyethylene nonylphenol ether
0.001g / L
0.001g / L
0.001g / L
[0087] Table 1
[0088] 2# No-flow washing tank: 1 minute of water washing, 30 seconds of dripping;
[0089] 3# Non-flowing washing tank: 1 minute of water washing, 30 seconds of dripping;
[0090] 4# No-flow washing tank: 1 minute of water washing, dripping for 30 seconds;
[0091] The follow-up pro...
Embodiment 2
[0093] Example 2 group-production of three-in-one flat material
[0094] The formula and working index of each tank are:
[0095] 1# Three-in-one flat tank: iron bromide, hydrogen peroxide, nitric acid, hydrochloric acid and nonylphenol polyoxyethylene ether are added as shown in Table 2, the balance is water; working temperature is normal temperature, treatment time is 5 minutes, trickle 1 minute;
[0096] category
Example 2-1
Example 2-2
Iron bromide
3g / L
3g / L
Hydrogen peroxide (50%)
8g / L
12g / L
Nitric acid
80g / L
80g / L
hydrochloric acid
65g / L
65g / L
Polyoxyethylene nonylphenol ether
0.001g / L
0.001g / L
[0097] Table 2
[0098] 2# No-flow washing tank: 1 minute of water washing, 30 seconds of dripping;
[0099] 3# Non-flowing washing tank: 1 minute of water washing, 30 seconds of dripping;
[0100] 4# No-flow washing tank: 1 minute of water washing, dripping for 30 seconds;
[0101] The follow-up process is carried out according to the existing standard alkaline ...
Embodiment 3
[0103] Example 3 Group-Three-in-one flat material production
[0104] The formula and working index of each tank are:
[0105] 1# Three-in-one flat light tank: Ferric chloride, hydrogen peroxide, nitric acid, hydrochloric acid and nonylphenol polyoxyethylene ether are added as shown in Table 3, the balance is water; the working temperature is normal temperature, the processing time is 5 minutes, trickle 1 minute;
[0106] category
Example 3-1
Example 3-2
Example 3-3
Example 3-4
Ferric chloride
3g / L
3g / L
3g / L
3g / L
Hydrogen peroxide (50%)
10g / L
10g / L
10g / L
10g / L
Nitric acid
70g / L
90g / L
80g / L
80g / L
hydrochloric acid
65g / L
65g / L
55g / L
75g / L
Polyoxyethylene nonylphenol ether
0.001g / L
0.001g / L
0.001g / L
0.001g / L
[0107] table 3
[0108] 2# No-flow washing tank: 1 minute of water washing, 30 seconds of dripping;
[0109] 3# Non-flowing washing tank: 1 minute of water washing, 30 seconds of dripping;
[0110] 4# No-flow washing tank: 1 minute of water wash...
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