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Organic antifreeze powder for preventing iron concentrate from freezing and preparation method thereof

A technology of antifreeze powder and iron concentrate, applied in chemical instruments and methods, other chemical processes, etc., can solve problems such as corrosion of steelmaking equipment, achieve the effect of not corroding equipment and solving freezing

Active Publication Date: 2022-06-17
宁夏北极星化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] 3) Use organic antifreeze powder instead of calcium chloride antifreeze to solve the corrosion problem of steelmaking equipment caused by spraying calcium chloride antifreeze

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Embodiment 1: The weight component of organic antifreeze powder

[0018] Super Absorbent Resin 100%

[0019] According to the addition amount of 0.2%, weigh 0.8 grams of organic antifreeze powder and mix it into 400 grams of iron concentrate, and place it in a freezer at -40°C for 48 hours. The inside of the iron concentrate is loose and not frozen.

Embodiment 2

[0021] Weight composition of organic antifreeze powder

[0022] Super Absorbent Resin 50%

[0023] Urea 35%

[0024] Wax powder 15%

[0025] According to the addition amount of 1.0%, 4.0 grams of organic antifreeze powder was weighed and mixed into 400 grams of iron concentrate. It was placed in a freezer at -40°C for 48 hours. The iron concentrate was loose inside and did not freeze.

Embodiment 3

[0027] Weight composition of organic antifreeze powder

[0028] Super Absorbent Resin 70%

[0029] Urea 20%

[0030] Wax powder 10%

[0031] According to the addition amount of 0.4%, weigh 1.6 grams of organic antifreeze powder and mix it into 400 grams of iron concentrate, and place it in a freezer at -40°C for 48 hours. The inside of the iron concentrate is loose and not frozen.

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PUM

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Abstract

The invention discloses an organic antifreeze powder for preventing iron concentrate from freezing and a preparation method thereof. The resin can absorb most of the water in the iron concentrate, making the interior of the iron concentrate relatively dry, and cannot form large pieces of ice in a cold environment. Urea has a certain antifreeze effect, and the freezing point of the formed solution can reach below zero. At 13°C, the wax powder has a water-repelling effect, which can separate the small amount of water remaining in the iron concentrate and avoid the formation of ice sheets. The organic antifreeze powder obtained by mixing superabsorbent resin, urea, and wax powder is It can prevent freezing of the iron concentrate without increasing the moisture content of the iron concentrate or affecting the quality of the iron concentrate.

Description

technical field [0001] The invention belongs to the technical field of antifreeze of iron concentrate, in particular to an organic antifreeze powder for preventing the freezing of iron concentrate and a preparation method thereof. Background technique [0002] The main raw material of the iron and steel industry is iron concentrate. Due to the high water content of iron ore, it is generally around 10%. In the northern region, from late October to late March every year, affected by cold currents, wind and snow, and freezing, the concentrates are very frozen. serious. For a long time, the antifreeze method for large-scale storage of iron ore concentrates is to use straw to cover the surface or build a large underground thawing tunnel, or spray some calcium chloride antifreeze or other antifreeze solutions; Seriously, sometimes due to the difficulty of unloading, even blasting is adopted. These methods not only cause waste of manpower, material resources and financial resourc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K3/18C08L101/00C08L91/06C08K5/21
CPCC09K3/185C08L101/00C08L91/06C08K5/21
Inventor 高靖国王颖霞苗德海
Owner 宁夏北极星化工有限公司
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