Composite scale and corrosion inhibitor and preparation method thereof
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A scale and corrosion inhibitor, phosphorus-free scale inhibition technology, applied in chemical instruments and methods, complex/solubilizer treatment, scale removal and water softening, etc., can solve problems such as aggravating environmental deterioration and achieve biodegradability high, high-efficiency
Inactive Publication Date: 2014-01-01
SHANDONG TIANQING TECH DEV
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[0004] Since part of the reclaimed water used for circulating cooling water comes from urban domestic sewage, it is likely to contain a part of phosphorus, and phosphorus is the most fundamental factor that causes eutrophication of water bodies and may cause "red tides", so if the used Phosphorus-based substances are also contained in water treatment agents, which will inevitably aggravate the deterioration of the environment
"A scale and corrosion inhibitor suitable for reuse of reclaimed water" (Chinese Patent Publication No. CN101423300) discloses a scale and corrosion inhibitor. It can
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[0018] Preparation method: Take two 250ml beakers respectively, rinse the beakers, add the materials into the beakers according to the above proportions to prepare agent A and agent B, then mix, stir evenly, and then pour it into the sample storage bottle. Store in a cool and ventilated place.
[0026] The specific preparation method of the medicament is the same as in Example 1.
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Abstract
The invention provides a phosphate-free high-biodegradability scale and corrosion inhibitor applicable to water reclamation, which mainly comprises an agent A and an agent B, wherein the agent A is prepared from the following raw materials in parts by weight: 3-6 parts of polyepoxysuccinic acid, 1.3-4.5 parts of sodium molybdate, 20-35 parts of phosphate-free antiscale dispersant, 0.5-1.5 parts of benzotriazole and 52-75.2 parts of deionized water; and the agent B is prepared from the following raw materials in parts by weight: 5-12 parts of sodium gluconate, 15-30 parts of zinc sulfate, 0.5-3 parts of concentrated sulfuric acid and 55-80 parts of deionized water. The preparation method comprises the following steps: respectively preparing the agent A and agent B, and uniformly stirring to obtain the scale and corrosion inhibitor. The experiment indicates that the composite scale and corrosion inhibitor has favorable scale inhibition property and corrosion inhibition effect for reclaimed circulating cooling water.
Description
technical field [0001] The invention belongs to the technical field of chemical products, and in particular relates to a composite scale and corrosion inhibitor and a preparation method thereof. Background technique [0002] With the rapid development of industrial production, the level of industrialization continues to increase, and industrial water consumption is increasing. In developed countries, industrial water consumption accounts for 1 / 2-3 / 4 of the total water intake. The annual industrial water consumption in my country is about 110 billion cubic meters meters, and industrial circulating cooling water accounts for more than 50% of it. Especially in the north of my country, the situation of limiting electricity by water and determining electricity by water is quite serious. The shortage of water resources has gradually become the bottleneck of power development. How to save water and improve water utilization is an urgent problem for power plants. If the reclaimed wa...
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