Phosphoric acid equipment pipeline scale inhibitor
A scale inhibitor and equipment technology, which is applied in the field of scale inhibitor for wet process phosphoric acid equipment pipelines, can solve the problems of phosphorus loss, a lot of manpower and material resources, and affect the start-up rate of the device, and achieves economical use, improved operation rate, and expanded temperature application. range effect
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[0011] Example 1
[0012] Taking the preparation of 12 tons of anti-scaling liquid as an example, add 0.06 tons of solid sodium dodecyl benzene sulfonate, 0.036 tons of sodium stearate, 0.12 tons of sodium lignosulfonate, and 0.18 tons of sodium polyacrylate. Mix and stir evenly, and in the prepared scale inhibitor solution, the mass concentration of sodium dodecylbenzenesulfonate is 0.5%, the mass concentration of sodium stearate is 0.3%, the mass concentration of sodium lignosulfonate is 1%, and the mass concentration of sodium polyacrylate is 0.5%. The mass concentration is 1.5%.
[0013] After heating the scale inhibitor to a temperature of 20°C, add it into the pipeline of the phosphoric acid equipment; the addition amount of the scale inhibitor is 0.05% of the wet-process phosphoric acid.
Example Embodiment
[0014] Example 2
[0015] Taking the preparation of 12 tons of anti-scaling liquid as an example, add 0.09 tons of solid sodium dodecyl benzene sulfonate, 0.066 tons of sodium stearate, 0.21 tons of sodium lignosulfonate, and 0.21 tons of sodium polyacrylate. Mix and stir evenly, and in the prepared scale inhibitor solution, the mass concentration of sodium dodecylbenzenesulfonate is 0.75%, the mass concentration of sodium stearate is 0.55%, the mass concentration of sodium lignosulfonate is 1.75%, and the sodium polyacrylate The mass concentration is 1.75%.
[0016] After heating the scale inhibitor to a temperature of 50 ℃, add it into the pipeline of the phosphoric acid equipment; the amount of the scale inhibitor added is 0.04% of the wet process phosphoric acid.
Example Embodiment
[0017] Example 3
[0018] Taking the preparation of 10 tons of anti-scaling liquid as an example, 0.1 tons of solid sodium dodecyl benzene sulfonate, 0.08 tons of sodium stearate, 0.25 tons of sodium lignosulfonate, 0.2 tons of sodium polyacrylate, Add water, mix and stir evenly. In the prepared scale inhibitor solution, the mass concentration of sodium dodecylbenzenesulfonate is 1.0%, the mass concentration of sodium stearate is 0.8%, the mass concentration of sodium lignosulfonate is 2.5%, and the mass concentration of polyacrylic acid is 1.0%. The sodium mass concentration was 2.0%.
[0019] After heating the scale inhibitor to a temperature of 80 °C, add it into the pipeline of the phosphoric acid equipment; the addition amount of the scale inhibitor is 0.03% of the wet-process phosphoric acid.
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