Non-phosphate environment-friendly type inhibition anti-sludging agent and preparation method thereof

A corrosion and scale inhibitor, an environmentally friendly technology, applied in the field of corrosion and scale inhibitor preparation, can solve the problems of insignificant effect, limited ability to disperse iron, general corrosion inhibition performance, etc.

Active Publication Date: 2007-10-31
SOUTHEAST UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the molecular structure of polyepoxysuccinic acid is mainly carboxyl functional groups, its effect on inhibiting calcium phosphate scale, calcium sulfate scale, calcium silicate scale, magnesium silicate scale, etc. is not significant, and a single functional group limits its ability to disperse iron ability, and the corrosion inhibition performance is general

Method used

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  • Non-phosphate environment-friendly type inhibition anti-sludging agent and preparation method thereof
  • Non-phosphate environment-friendly type inhibition anti-sludging agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Example 1: N 2 Under the atmosphere, take 78g sodium epoxysuccinate and dissolve in 160g deionized water, add 4.5g urethanesulfonic acid at room temperature, mix well, add dropwise NaOH solution with a concentration of 50% to adjust the pH value to 11.0, add 3.1g Ca ( Oh) 2The powder was heated to 90° C., polymerized for 3 hours, cooled to room temperature, and filtered to obtain a viscous yellow sulfonate amine polyepoxysuccinate liquid. The sulfonate amine-based polyepoxysuccinate liquid was exchanged with a polystyrene-based hydrogen-type cation exchange resin with an ion exchange capacity of 300 mmol / 100 g at room temperature for 1 hour to obtain a sulfonate amine-based polyepoxysuccinic acid liquid.

[0023] The scale inhibition performance results of sulfonate amine polyepoxysuccinic acid show that: when the addition amount of sulfonate amine polyepoxysuccinic acid is 30ppm, the scale inhibition rate of calcium carbonate scale can reach 94.3%, and the scale inhib...

Embodiment 2

[0024] Example 2: N 2 Under the atmosphere, weigh 74g of ammonium epoxysuccinate and dissolve it in 160g of deionized water, add 4.9g of sulfamic acid at room temperature, mix well, add dropwise the concentration of 40% NH 3 ·H 2 The pH of the O solution was adjusted to 10.0, 4.5 g of CaO powder was added, the temperature was raised to 90° C., and after polymerization for 2.5 hours, the solution was cooled to room temperature and filtered to obtain a viscous yellow sulfonate amine polyepoxysuccinate liquid.

[0025] The results of scale inhibition performance of sulfonate amine polyepoxysuccinate show that: when the addition amount of sulfonate amine polyepoxysuccinate is 30ppm, the scale inhibition rate to calcium carbonate scale can reach 91.2%, and the scale inhibition rate to sulfuric acid The scale inhibition rate of strontium scale can reach 89.9%; when the addition amount of sulfonate amine polyepoxy succinate is 3ppm, the scale inhibition rate of calcium sulfate scale...

Embodiment 3

[0026] Example 3: N 2 Under the atmosphere, weigh 78g of sodium epoxysuccinate and dissolve it in 160g of deionized water, add 4.5g of urethanesulfonic acid at room temperature, mix well, add dropwise NaOH solution with a concentration of 50% to adjust the pH value to 10.0, add 2.5g of NaOH solid , heated to 90° C., polymerized for 3 hours, cooled to room temperature, and filtered to obtain viscous yellow sulfonate amine polyepoxysuccinate liquid.

[0027] The results of scale inhibition performance of sulfonate amine polyepoxysuccinate show that: when the addition amount of sulfonate amine polyepoxysuccinate is 30ppm, the scale inhibition rate to calcium carbonate scale can reach 92.5%. The scale inhibition rate of strontium scale can reach 90.8%; when the addition amount of sulfonate amine polyepoxy succinate is 3ppm, the scale inhibition rate of calcium sulfate scale can reach 95.6%; When the addition of succinate is 6ppm, the scale inhibition rate to barium sulfate scale ...

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Abstract

The invention discloses a non-phosphate environment-friendly type inhibiting antisludging agent and preparing method, which is characterized by the following: fitting for disposing industrial recirculated cooling water and oil-field sewage disposal system as water treatment agent; using to inhibit water quality and antisludging treatment; possessing good detergency for CaCO3, CaSO4, BaSO4 and SrSO4 dirty; possessing high bearable degree for calcium; possessing good inhibition for corrosion of carbon steel; setting the R1 of the structural general formula as H or HO(CH2)a-; setting the a as 1-5 or one of MO3SCH2CH(OH)CH2- ; setting the R2 as -(CH2)b- and b as 0-6; expressing n as polymerization degree; setting the n as 2-50; setting n as one or several mixed-ion from NH4+ or Na+ or K+ or 1/2Ca2+.

Description

technical field [0001] The invention relates to a sulfonate amine polyepoxysuccinic acid or salt (SA / PESA) phosphorus-free and environmentally friendly corrosion and scale inhibitor and a preparation method thereof, which is suitable for industrial circulating cooling water and oil field sewage treatment systems A phosphorus-free and biodegradable water treatment agent is used for corrosion inhibition and scale inhibition treatment of water quality, and belongs to the technical field of preparation of corrosion and scale inhibitors in the technical field of water treatment. Background technique [0002] In the circulating cooling water system in industrial production, due to the evaporation of water, the change of pH value, the rise of temperature, the change of water flow rate, the impurities in water, the pressure of the system and other factors during use, the alkaline earth metal cations contained in the water, such as Ca 2+ , Mg 2+ 、Ba 2+ and small amounts of other c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F5/12
Inventor 周钰明张云
Owner SOUTHEAST UNIV
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