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 efficien

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0023] Example 1 Prepare 100kg of out-of-use, standby equipment protective agent, required cyclohexylamine carbonate 30kg, ammonium carbonate 30kg, dicyclohexylamine nitrite 30kg, nitrite 6kg, urotropine 4kg.

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

[0025] Its preparation method is as follows:

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

[0027] (2) cyclohexylamine carbonate and ammonium carbonate are added in mixer A to mix and stir more than 3 hours at a rotating speed of 30-50 rev / min to make it uniform;

[0028] (3) dicyclohexylamine nitrite and nitrite are added in mixer...

Example Embodiment

[0034] Example 2 Prepare 100kg of deactivation, standby equipment protective agent, required cyclohexylamine carbonate 40kg, ammonium carbonate 20kg, dicyclohexylamine nitrite 30kg, nitrite 6kg, urotropine 4kg.

[0035] Wherein the sources of cyclohexylamine carbonate, ammonium carbonate, dicyclohexylamine nitrite, nitrite, and urotropine are the same as in Example 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 those in Example 1.

Example Embodiment

[0038] Example 3 Prepare 100kg of deactivation, standby equipment protective agent, required cyclohexylamine carbonate 50kg, ammonium carbonate 10kg, dicyclohexylamine nitrite 30kg, nitrite 6kg, urotropine 4kg.

[0039] Wherein the sources of cyclohexylamine carbonate, ammonium carbonate, dicyclohexylamine nitrite, nitrite, and urotropine are the same as in Example 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 is up to 98% after inspection.

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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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