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Acid corrosion inhibitor

Patent:

Abstract

An acid corrosion inhibitor is prepared by a 2-stage vacuum evaporation of effluents obtained from the ammonia columns of the coking oven plant. The effluent, leaving a scrubber in which the phenols are removed at a temperature of 98$C, passes through a quartz filter and flows into a heated chamber in which it is used for preheating a solution circulating through a vacuum unit, maintaining the temperature of the solution at 55$ to 60$C. The effluent enters a large tank in which it is boiled at 55$ to 60$C under 635 to 640 mm Hg pressure. Double evaporation of this solution yields a very effective acid corrosion inhibitor. Its corrosion-preventing effect is 97.9% compared with 90.1% for thiourea and 88.5% for urotropin under identical conditions.
Authors:
Publication Date:
Apr 28, 1964
Product Type:
Patent
Report Number:
SU 172439
Reference Number:
EDB-81-043779
Subject:
02 PETROLEUM; CORROSION INHIBITORS; CHEMICAL PREPARATION; CORROSION RESISTANCE; OIL WELLS; PASSIVITY; THIOUREA; UROTROPIN; AMINES; ANTITHYROID DRUGS; CARBONIC ACID DERIVATIVES; ORGANIC COMPOUNDS; ORGANIC SULFUR COMPOUNDS; SYNTHESIS; THIOUREAS; WELLS; 020300* - Petroleum- Drilling & Production
OSTI ID:
6894760
Country of Origin:
USSR
Language:
English
Submitting Site:
TUL
Size:
Pages: v
Announcement Date:

Patent:

Citation Formats

Chen, N G. Acid corrosion inhibitor. USSR: N. p., 1964. Web.
Chen, N G. Acid corrosion inhibitor. USSR.
Chen, N G. 1964. "Acid corrosion inhibitor." USSR.
@misc{etde_6894760,
title = {Acid corrosion inhibitor}
author = {Chen, N G}
abstractNote = {An acid corrosion inhibitor is prepared by a 2-stage vacuum evaporation of effluents obtained from the ammonia columns of the coking oven plant. The effluent, leaving a scrubber in which the phenols are removed at a temperature of 98$C, passes through a quartz filter and flows into a heated chamber in which it is used for preheating a solution circulating through a vacuum unit, maintaining the temperature of the solution at 55$ to 60$C. The effluent enters a large tank in which it is boiled at 55$ to 60$C under 635 to 640 mm Hg pressure. Double evaporation of this solution yields a very effective acid corrosion inhibitor. Its corrosion-preventing effect is 97.9% compared with 90.1% for thiourea and 88.5% for urotropin under identical conditions.}
place = {USSR}
year = {1964}
month = {Apr}
}