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Dead and spare equipment protecting agent and preparation method thereof

A backup equipment and protective agent technology, which is applied in the field of equipment preservatives, can solve the problems of high manufacturing cost, short rust prevention period, and low corrosion inhibition efficiency, and achieve the goals of enhancing site adaptability, preventing under-deposit corrosion, and expanding the application range Effect

Inactive Publication Date: 2008-08-13
杨逢春
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] During the shutdown period of large oil refining and chemical equipment, chemical fertilizer and chemical fiber equipment, heat pipe network, heating boiler, etc., due to the contact between the equipment and the atmosphere or the residual corrosive medium, the corrosion during this period is often more serious than that during operation. To avoid this In such cases, desiccant, nitrogen filling protection, water agent anti-rust protection method, oil anti-rust protection method and conventional gas phase anti-rust protection are usually used to protect the equipment, but these methods have short anti-rust period and corrosion inhibition. The disadvantages of low efficiency and potential safety hazards, so the use of vapor phase corrosion inhibitors has become a trend
[0003] Chinese patent 200610118310.5 "Preparation method of a gas phase corrosion inhibitor", 200310101610.2 "Gas phase corrosion inhibitor for industrial equipment protection and its preparation method", 02815037 "Gas phase corrosion inhibitor and its preparation method", 92106291 "A gas phase corrosion inhibitor "Production Process of Corrosion Inhibitors" discloses some vapor phase corrosion inhibitors and their preparation methods, but the formula source and production process of these corrosion inhibitors are relatively complicated, and the manufacturing cost is relatively high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Example 1 To prepare 100kg of out-of-service and standby equipment protection agents, 30kg of cyclohexylamine carbonate, 30kg of ammonium carbonate, 30kg of dicyclohexylamine nitrite, 6kg of nitrite, and 4kg of urotropine are required.

[0024] Among them, cyclohexylamine carbonate and dicyclohexylamine nitrite are products produced by Shenyang Organic Chemical Plant No. 2; ammonium carbonate is a product produced by Lanzhou Petrochemical Company; nitrite is a product produced by Dalian Chemical Industry Company; Products produced by Shanghai Pacific Chemical Company. The above-mentioned products are all industrial grade, powdery, and the active ingredient content is 99%.

[0025] Its preparation method is as follows:

[0026] (1) Weighing various medicaments in proportion;

[0027] (2) Add cyclohexylamine carbonate and ammonium carbonate into mixer A and mix and stir at a speed of 30-50 rpm for more than 3 hours to make it uniform;

[0028] (3) Add dicyclohexylamine...

Embodiment 2

[0034] Example 2 To prepare 100kg of out-of-service and standby equipment protection agents, 40kg of cyclohexylamine carbonate, 20kg of ammonium carbonate, 30kg of dicyclohexylamine nitrite, 6kg of nitrite, and 4kg of urotropine are required.

[0035] Wherein the source of cyclohexylamine carbonate, ammonium carbonate, dicyclohexylamine nitrite, nitrite, urotropine is with embodiment 1.

[0036] Its preparation method is the same as that of Example 1, wherein the drying time is 24 hours.

[0037] The corrosion inhibition efficiency of the protective agent is 96.5% after inspection, and the inspection method and data processing are based on the same standards as in Example 1.

Embodiment 3

[0038] Example 3 To prepare 100kg of out-of-service and standby equipment protection agents, 50kg of cyclohexylamine carbonate, 10kg of ammonium carbonate, 30kg of dicyclohexylamine nitrite, 6kg of nitrite, and 4kg of urotropine are required.

[0039] Wherein the source of cyclohexylamine carbonate, ammonium carbonate, dicyclohexylamine nitrite, nitrite, urotropine is with embodiment 1.

[0040] Its preparation method is the same as that of Example 1, wherein the drying time is 48 hours.

[0041] The corrosion inhibition efficiency of the protective agent reaches 98% after inspection, and the inspection method and data processing are based on the same standards as in Example 1.

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PUM

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Abstract

The invention relates to a protective agent for reserve equipment and idle equipment, characterized in that the agent is composed of cyclohexylamine carbonate, salvolatile, dicyclohexylamine nitrite, nitrite and methenamine. The compositions are 30% to 60%, 5% to 30%, 5% to 30%, 2% to 10%, 2% to 10% of the total weight respectively. The invention also discloses a preparation of the protective agent. The invention has the characteristics of long rust-proof life, high corrosion inhibition efficiency, low cost and simple process.

Description

technical field [0001] The invention relates to an equipment antiseptic, in particular to a deactivated and standby equipment protection agent, and also relates to a preparation method of the protection agent. Background technique [0002] During the shutdown period of large oil refining and chemical equipment, chemical fertilizer and chemical fiber equipment, heat pipe network, heating boiler, etc., due to the contact between the equipment and the atmosphere or the residual corrosive medium, the corrosion during this period is often more serious than that during operation. To avoid this In such cases, desiccant, nitrogen filling protection, water agent anti-rust protection method, oil anti-rust protection method and conventional gas phase anti-rust protection are usually used to protect the equipment, but these methods have short anti-rust period and corrosion inhibition. There are disadvantages of low efficiency and potential safety hazards, so the use of vapor phase corro...

Claims

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Application Information

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IPC IPC(8): C23F11/14
Inventor 杨逢春
Owner 杨逢春
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