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Descaling agent for phosphate rock floatation device and preparation method thereof

A technology of flotation device and descaling agent, applied in descaling and water softening, chemical instruments and methods, complex/solubilizing agent treatment, etc., can solve the problems of production stagnation, limitation, increase cost, etc. Effect, accelerated decomposition and destruction, small corrosion effect

Active Publication Date: 2014-10-08
YUNNAN PHOSPHATE CHEM GROUP CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The production process often stagnates due to fouling, affecting production and increasing costs
[0005] At present, the above-mentioned scale layer is generally removed by physical knocking in industry, but it is only limited to the stirring tank and flotation machine in the phosphate rock flotation device
However, for flotation tubes with unique structures, especially return tubes with a length of several kilometers or even hundreds of kilometers, the physical percussion method is not suitable for the decalcification of the above-mentioned devices.
There is no relevant patent report for chemical method to remove scale layer in phosphate rock flotation device

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Example 1 ( Quality Score Meter ）

[0018] Industrial Sodium Hydroxide 10.00%

[0019] Tetrasodium aminotrimethylene phosphonate 1.20%

[0020] Sodium dioctyl sulfonate 0.10%

[0021] Sodium polyacrylate 0.10%

[0022] Water 88.60%

[0023] Preparation process: Weigh the formulated amount of industrial grade sodium hydroxide, the chelating agent tetrasodium aminotrimethylene phosphonate, the penetrating agent dioctyl succinate sodium sulfonate and the scale inhibitor sodium polyacrylate, dissolve in the formulated amount of water, fully Mix well, cool to 15.00°C, and soak the descaling agent in the phosphate rock flotation device for 16 hours.

Embodiment 2

[0024] Example 2 ( Quality Score Meter ）

[0025] Industrial sodium hydroxide 20.00%

[0026] Sodium Hydroxyethylene Diphosphonate 3.50%

[0027] Sodium dodecylbenzenesulfonate 0.60%

[0028] Potassium polyacrylate 1.20%

[0029] Water 74.70%

[0030] Preparation process: Weigh the formula quantity of industrial grade sodium hydroxide, chelating agent sodium hydroxyethylene diphosphonate, penetrant sodium dodecylbenzene sulfonate and scale inhibitor potassium polyacrylate, dissolve in the formula quantity water, mix thoroughly Evenly, cool to 12.00°C, soak the descaling agent in the phosphate rock flotation device for 48h.

Embodiment 3

[0031] Example 3 ( Quality Score Meter ）

[0032] Industrial sodium hydroxide 15.00%

[0033] Hexamethylene diamine tetramethylene phosphonate potassium salt 4.70%

[0034] α-Alkenyl Sulfonate 0.35%

[0035] Zinc polyacrylate 0.83%

[0036] Water 79.12%

[0037] Preparation process: Weigh the formula quantity of industrial grade sodium hydroxide, chelating agent hexamethylenediamine tetramethylene phosphonate potassium salt, penetrant α-alkenyl sulfonate and scale inhibitor polyacrylate zinc, dissolve in the formula quantity water, fully Mix evenly, cool to 17.00°C, and soak the descaling agent in the phosphate rock flotation device for 72 hours.

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PUM

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Abstract

The invention relates to a descaling agent for a phosphate rock floatation device and a preparation method of the descaling agent. The descaling agent is prepared from the following components in percentage by weight: 10.00-30.00% of a main component sodium hydroxide, 0.10-5.00% of a chelating agent phosphonate, 0.05-1.00% of a penetrant octyl sulfonate, 0.08-2.00% of a scale inhibitor polyacrylate and the balance of water. The descaling agent for the phosphate rock floatation device provided by the invention is exclusively used for the phosphate rock floatation device including a stirring groove, a flotation machine (column), a flotation machine, an ore pulp tube and a water turn pipeline. The descaling agent for the phosphate rock floatation device provided by the invention is simple in formula, has the descaling and scale inhibiting functions, can be recycled and is nearly free from sewage discharge and environment-friendly.

Description

technical field [0001] The invention relates to a chemical descaling agent, in particular to a descaling agent for a phosphate rock flotation device and its application. Background technique [0002] Phosphate rock is an important chemical raw material for the production of phosphate fertilizer, yellow phosphorus and its phosphorus chemical products, and plays an important role in the development of the national economy. Phosphate rock is a non-renewable and alternative resource, and is listed by the Ministry of Land and Resources as one of the twenty minerals that cannot meet the needs of national economic development after 2010. Phosphorus is one of the basic elements needed for plant growth, and the sustainable development of phosphorus resources is related to the national food strategy security. [0003] For a long time, the utilization of phosphate rock in Yunnan has always been "mining the rich and discarding the poor", resulting in a large waste of resources. The med...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F5/08C02F5/10C02F5/14
Inventor 李耀基方世祥潘志权张华丽何宾宾
Owner YUNNAN PHOSPHATE CHEM GROUP CORP
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