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Scale inhibitor for soda ash mother liquid

A technology of anti-scaling agent and mother liquor, which is applied in the field of anti-scaling agent in the composition where impurities scale in equipment and pipelines, to achieve the effect of good compatibility and good compatibility

Active Publication Date: 2012-08-29
四川鸿康科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0020] The purpose of the present invention is to solve the problem of scaling in the production process of the existing soda ash mother liquor, and to provide a scale inhibitor suitable for soda ash mother liquor, so as to ensure the long-term and stable operation of the soda ash mother liquor production system

Method used

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  • Scale inhibitor for soda ash mother liquid
  • Scale inhibitor for soda ash mother liquid
  • Scale inhibitor for soda ash mother liquid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] The ratio of HK-101 scale inhibitor:

[0049] The molar ratio of AA, MA, and HPA is AA:MA:HPA=5.0:1.0:2.0,

[0050] The consumption of initiator ammonium persulfate is 12% of the total mass of AA, MA, HPA,

[0051] The consumption of molecular weight regulator isopropanol is 5% of AA, MA, HPA total mass,

[0052] Get HK-101 scale inhibitor 1;

[0053] Components of soda ash mother liquor antiscalant:

[0054]

[0055] Soda ash mother liquor scale inhibitor 1 was obtained.

Embodiment 2

[0057] The ratio of HK-101:

[0058] The molar ratio of AA, MA, and HPA is AA:MA:HPA=2.5:3.5:2,

[0059] The consumption of initiator ammonium persulfate is 9% of AA, MA, HPA gross mass,

[0060] The consumption of molecular weight regulator isopropanol is 10% of AA, MA, HPA total mass,

[0061] Get HK-101 scale inhibitor 2;

[0062] Components of soda ash mother liquor antiscalant:

[0063]

[0064]

[0065] Soda ash mother liquor scale inhibitor 2 is obtained.

Embodiment 3

[0067] The ratio of HK-101:

[0068] The molar ratio of AA, MA, and HPA is AA:MA:HPA=3.5:3.0:1.5,

[0069] The consumption of initiator ammonium persulfate is 7% of the total mass of AA, MA, HPA,

[0070] The consumption of molecular weight regulator isopropanol is 15% of AA, MA, HPA total mass,

[0071] Get HK-101 scale inhibitor 3;

[0072] Components of soda ash mother liquor antiscalant:

[0073]

[0074] Soda ash mother liquor scale inhibitor 3 was obtained.

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Abstract

The invention discloses a scale inhibitor with soda ash mother liquor and belongs to the technical field of fine chemical products. The scale inhibitor comprises the following components in part by mass: 50 to 70 parts of HK-101 scale inhibitor, 5 to 15 parts of sodium gluconate, 10 to 20 parts of polyepoxysuccinic acid and 3 to 7 parts of pH regulator, wherein the HK-101 scale inhibitor is prepared through crylic acid, maleic acid, hydroxy-propyl acrylate, an initiator and a molecular weight regulator. The scale inhibitor applied to the soda ash mother liquid can prolong the scaling time of calcium ions and magnesium ions in the mother liquid, reduces the chemical cleaning frequency of a soda ash mother liquid production system from 2 to 4 times per year to 1 time per 2 to 3 years, guarantees long-period and stable operation of soda ash mother liquid production, greatly reduces damage to equipment caused by chemical cleaning and does not influence the quality of the soda ash product.

Description

technical field [0001] The present invention relates to a kind of antiscalant, relate in particular to a kind of antiscalant used in the production of soda ash mother liquor to prevent CaCO 3 , CaSO 4 The invention relates to a composition in which impurities such as impurities scale in equipment and pipelines, and belongs to the technical field of fine chemical products. Background technique [0002] The existing soda ash production process is mainly divided into trona method and synthetic soda method. The soda production by trona method has a low yield and many impurities in the product, so the synthetic soda production process is the main soda ash production process. At present, the domestic synthetic alkali method mainly adopts the ammonia-alkali method and the combined alkali method. [0003] The ammonia-soda method is still used in some large-scale soda plants in China (such as Dahua and Tianjian, Weifang, Tangshan, etc.). The main production process of the ammonia-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F5/10
Inventor 李平殷捷叶军赵永祥
Owner 四川鸿康科技股份有限公司