Degreasing agent for stainless steel, carbon steel and petrochemical pipelines

A petrochemical and degreasing agent technology, applied in the field of chemical product preparation, can solve the problems of poor degreasing performance, physical harm to operators, poor high temperature performance, etc., and achieves green and environmentally friendly raw material sources, reduces physical harm, and has high degreasing efficiency. Effect

Inactive Publication Date: 2015-04-22
陕西凯利环境工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the known degreasing agent products in the art have too high alkali content, some products have substandard active substance content, poor degreasing performance, some products have poor high-te

Method used

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  • Degreasing agent for stainless steel, carbon steel and petrochemical pipelines
  • Degreasing agent for stainless steel, carbon steel and petrochemical pipelines
  • Degreasing agent for stainless steel, carbon steel and petrochemical pipelines

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0013] Example 1

[0014] Weigh 100g of sodium hydroxide, 40g of sodium gluconate, 20g of open powder, 30g of p-toluenesulfonic acid, and APG-081050g of alkyl glycoside. First dissolve sodium hydroxide in 760mL of water, then add sodium gluconate, open powder and P-toluenesulfonic acid is dissolved in sodium hydroxide solution, cooled to room temperature and packaged, and the product is ready. Dilute the degreaser product in Example 1 into 1000 mL of 10% aqueous solution, soak DN30 carbon steel or stainless steel elbows pickled with hydrochloric acid at room temperature for 30 minutes, take out the elbows, rinse with pure water, and then use oil-free dry air Blow dry, soak the dried elbow with 1000mL carbon tetrachloride for 10 minutes, and then determine the oil content of carbon tetrachloride to be 10mg / L, which is far better than the currently used degreasing agent (60g sodium hydroxide, 40g sodium carbonate, Base phenol polyoxyethylene ether OP-1020g, 880mL water compound, t...

Example Embodiment

[0015] Example 2

[0016] Weigh 150g of sodium hydroxide, 30g of powder, APG-081080g of alkyl glycoside, 70g of p-toluenesulfonic acid, and 80g of sodium gluconate. First dissolve sodium hydroxide in 590mL of water, then remove powder and p-benzyl. Sulfonic acid, APG-0810 and sodium gluconate are dissolved in sodium hydroxide solution, cooled to room temperature and packaged, ready to be a product. Dilute the degreaser product in Example 2 into 1000 mL of 10% aqueous solution, soak the DN30 carbon steel or stainless steel elbows pickled with hydrochloric acid at room temperature for 30 minutes, take out the elbows, rinse with pure water, and then use oil-free dry air Blow dry, soak the dried elbow with 1000mL carbon tetrachloride for 10 minutes, and then determine the oil content of carbon tetrachloride to be 8mg / L, which is far better than the oil content measured by the same method for the currently used degreasing agent.

Example Embodiment

[0017] Example 3

[0018] Weigh 100g of sodium hydroxide, APG-081050g of alkyl glycoside, 30g of powder, 65g of p-toluenesulfonic acid, 70g of sodium gluconate, first dissolve sodium hydroxide in 685mL water, and then add alkyl glycoside APG-0810, The powder, p-toluenesulfonic acid and sodium gluconate are dissolved in sodium hydroxide solution, cooled to room temperature and packaged, and the product is ready. Dilute the degreaser product in Example 3 into 1000 mL of 10% aqueous solution, soak DN30 carbon steel or stainless steel elbows pickled with hydrochloric acid at room temperature for 30 minutes, take out the elbows, rinse with pure water, and then use oil-free dry air Blow dry, soak the dried elbow with 1000mL carbon tetrachloride for 10 minutes, and then determine the oil content of carbon tetrachloride to be 15mg / L, which is far better than the oil content measured by the same method for the currently used degreasing agent.

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Abstract

The invention discloses a degreasing agent for stainless steel, carbon steel and petrochemical pipelines. The degreasing agent is prepared by mixing and dissolving p-benzene methane sulfonic acid, sodium gluconate, alkyl polyglycoside APG, sodium hydroxide, nekal and water. The degreasing agent is directly sprayed to the surface of the stainless steel or carbon steel, or is used for soaking the petrochemical pipelines and chemical plant oxygen (or nitrogen) pipelines after being diluted in use to ensure that the grease on the surfaces of the stainless steel, carbon steel and petrochemical pipelines and the chemical plant oxygen (or nitrogen) pipelines can be completely removed. Compared with the prior art, the degreasing agent disclosed by the invention has the advantages of high degreasing efficiency, green and environment-friendly raw material source, low alkalinity, high-temperature resistance and hard water resistance, cannot cause inter-crystalline corrosion to the stainless steel and the carbon steel, and cannot cause environmental pollution.

Description

technical field [0001] The invention belongs to the technical field of preparation of chemical products and relates to a degreasing agent for stainless steel, carbon steel and petrochemical pipelines. Background technique [0002] Degreasing agent is a chemical preparation used to remove oil stains (rust oil, butter, emulsified oil, machining oil) on the surface of metal workpieces. The product is widely used in stainless steel, carbon steel, petroleum pipelines and oxygen (or nitrogen) pipelines in chemical plants, etc. aspect. Most of the known degreasing agent products in the art have too high alkali content, some products have substandard active substance content, poor degreasing performance, some products have poor high-temperature performance, and some products contain halogens, which cause crystals of stainless steel and carbon steel. Inter-corrosion, pollution to the environment, but also a greater harm to the operator's body. Contents of the invention [0003] T...

Claims

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Application Information

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IPC IPC(8): C23G1/14C23G1/19
Inventor 黄述洲康东平张文东
Owner 陕西凯利环境工程有限公司
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