Preparation method of sewage corrosion and scale inhibitor

A technology for corrosion and scale inhibitor and sewage, which is applied in the field of preparation of sewage corrosion and scale inhibitor, can solve the problems of low scale inhibition rate, low elution rate of heavy metal ions and high corrosion rate of sewage corrosion and scale inhibitor, and achieves Good biodegradability, good dehydration performance, good heat resistance effect

Inactive Publication Date: 2018-03-30
江苏悠谷未来科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The invention provides a preparation method of a sewage corrosion and scale inhibitor, which solves the technical problems of the existing sewage corrosion and scale inhibitors such as low scale inhibition rate, high corrosion rate, low heavy metal ion elution rate and poor tolerance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The first step: weighing according to the ratio of parts by mass: 100 parts of reverse osmosis water, 16 parts of ammonium persulfate, 6 parts of perchloric acid, 4 parts of phosphorus trichloride, 5 parts of sodium sulfonate, and methyl benzotriazole 3 parts, 5 parts of expanded graphite, 8 parts of disodium hydroxyethylene diphosphonate, 10 parts of dimethylamine, 15 parts of acrylic acid, 30 parts of acrylamide, 7 parts of zinc chloride, 8 parts of ammonium carbonate, lignosulfonic acid 3 parts sodium, 1 part isopropanol.

[0028] Step 2: Dry the expanded graphite, sodium sulfonate and zinc chloride in a constant temperature drying oven at 80°C for 35 minutes, then put them into the grinder and grind them for 30 minutes, and roast them at 600°C for 10 minutes after the grinding is complete. .

[0029]The third step: the roasted product is put into the reaction with a thermometer, heating device, reflux condenser and agitator with reverse osmosis water, phosphorus tr...

Embodiment 2

[0033] The first step: weighing according to the ratio of parts by mass: 100 parts of reverse osmosis water, 20 parts of ammonium persulfate, 10 parts of nitric acid, 8 parts of phosphorus trichloride, 15 parts of sodium sulfonate, 5 parts of tolyl benzotriazole , 25 parts of expanded graphite, 12 parts of disodium hydroxyethylene diphosphonate, 20 parts of dimethylamine, 25 parts of acrylic acid, 50 parts of acrylamide, 11 parts of zinc chloride, 10 parts of ammonium carbonate, 7 parts of sodium lignosulfonate Parts, 5 parts of isopropanol.

[0034] Step 2: Dry the expanded graphite, sodium sulfonate and zinc chloride in a constant temperature drying oven at 100°C for 45 minutes, then put them into the grinder and grind them for 40 minutes, and roast them at 700°C for 30 minutes after the grinding is complete .

[0035] The third step: the roasted product is put into the reaction with a thermometer, heating device, reflux condenser and agitator with reverse osmosis water, ph...

Embodiment 3

[0039] The first step: weighing according to the ratio of parts by mass: 100 parts of reverse osmosis water, 18 parts of ammonium persulfate, 8 parts of hydrogen peroxide, 6 parts of phosphorus trichloride, 10 parts of sodium sulfonate, 4 parts of tolyl benzotriazole , 15 parts of expanded graphite, 10 parts of disodium hydroxyethylene diphosphonate, 15 parts of dimethylamine, 20 parts of acrylic acid, 40 parts of acrylamide, 9 parts of zinc chloride, 9 parts of ammonium carbonate, 5 parts of sodium lignosulfonate 3 parts, 3 parts of isopropanol.

[0040] Step 2: Dry the expanded graphite, sodium sulfonate and zinc chloride in a constant temperature drying oven at 90°C for 40 minutes, then put them into the grinder and grind them for 35 minutes, and roast them at 650°C for 20 minutes after the grinding is complete. .

[0041] The third step: the roasted product is put into the reaction with a thermometer, heating device, reflux condenser and agitator with reverse osmosis wate...

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Abstract

The invention relates to a preparation method of a sewage corrosion and scale inhibitor. The raw materials include: reverse osmosis water, ammonium persulfate, an oxidizing agent, phosphorus trichloride, sodium sulfonate, methylbenzotriazole, expanded graphite, disodium hydroxyethylidene diphosphonate, dimethylamine, acrylic acid, acrylamide, zinc chloride, zinc chloride, sodium lignin sulfonate and isopropyl alcohol. The heavy metal ion elution rate is up to 92-99%, the BOD removal rate is 88-92%, the penicillium fermentation broth and streptomyces griseus fermentation broth have a flocculation rate of 88-90%, the calcium carbonate scale inhibition rate is 98-99%, the corrosion rate of carbon steel is 0.0014-0.002mm/a, the COD removal rate is 84-94%, the SS removal rate is 99.7-99.9%, thecalcium carbonate scale inhibition rate is up to 99-99.6%, the strontium sulfate scale inhibition rate is 99.2-99.6%, the carbon steel slow release rate is 89-97%, and the sustained release rate of galvanized material is 93-97%.

Description

technical field [0001] The invention relates to an environment-friendly material, in particular to a preparation method of a sewage corrosion and scale inhibitor. Background technique [0002] Large, medium and small boilers prevent scaling and corrosion. The chemical treatment method in the furnace is commonly used. Anti-corrosion and scale inhibitors are added to the boiler water to reduce the hardness of the boiler water, soften the water quality, and reduce scaling and corrosion. This method is simple and practical, and is very popular among users. . [0003] Boilers are no strangers to our daily life. Boilers in operation often have hard scale and corrosion, which not only wastes fuel, but also affects boiler output. In severe cases, the tubes will explode, causing shutdown accidents and affecting their service life. [0004] EDTMPS is a nitrogen-containing organic polyphosphonic acid, which is a cathodic corrosion inhibitor. Compared with inorganic polyphosphate, its ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F5/14C02F1/50C23F11/08A01N59/26A01N59/02A01N59/00A01N43/647A01N57/20A01N33/04A01N31/06A01N37/18A01N59/16A01N31/02A01N41/04A01P1/00
CPCA01N31/02A01N31/06A01N33/04A01N37/18A01N41/04A01N43/647A01N57/20A01N59/00A01N59/02A01N59/16A01N59/26C02F1/50C02F5/145C23F11/08
Inventor 王维根
Owner 江苏悠谷未来科技有限公司
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