RO93908B1 - Corrosion inhibitor for petrochemical installations - Google Patents

Corrosion inhibitor for petrochemical installations

Info

Publication number
RO93908B1
RO93908B1 RO122927A RO12292786A RO93908B1 RO 93908 B1 RO93908 B1 RO 93908B1 RO 122927 A RO122927 A RO 122927A RO 12292786 A RO12292786 A RO 12292786A RO 93908 B1 RO93908 B1 RO 93908B1
Authority
RO
Romania
Prior art keywords
weight
parts
corrosion inhibitor
triethanolamine
film
Prior art date
Application number
RO122927A
Other languages
Romanian (ro)
Other versions
RO93908A2 (en
Inventor
Ovidiu Dumitru Georgescu
Galina Nicolescu
Maria Stoica
Constantin Andrei
Iuliu Vlad
Toma Kassovitz
Original Assignee
Ovidiu Dumitru Georgescu
Galina Nicolescu
Maria Stoica
Constantin Andrei
Iuliu Vlad
Toma Kassovitz
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ovidiu Dumitru Georgescu, Galina Nicolescu, Maria Stoica, Constantin Andrei, Iuliu Vlad, Toma Kassovitz filed Critical Ovidiu Dumitru Georgescu
Priority to RO122927A priority Critical patent/RO93908B1/en
Publication of RO93908A2 publication Critical patent/RO93908A2/en
Publication of RO93908B1 publication Critical patent/RO93908B1/en

Links

Abstract

Inventia se refera la un inhibitor de coroziune cu actiune neutralizanta si peliculogena, pentru protectia suprafetelor metalice de la vîrful coloanelor de fractionare din instalatiile petrochimice. Inhibitorul de coroziune este solubil în solventi nepolari si dispersabili în apa, fiind constituit din 20...50 parti greutate baza Mannich, 2...10 parti greutate trietanolamina tehnica, 1...5 parti greutate nonilfenol etoxilat cu 2...4 mol oxid de etilena, 1...2 parti greutate monoetanolamina si 30...76 parti greutate alcooli alifatici saturati C3-C7, trietanolamina tehnica avînd min 85% trietanolamina, max 1% dietanolamina si max 15% polieteri. Acest inhibitor actioneaza atît în faza de vapori, cît si în faza lichida, neutralizînd aciditatea organica si anorganica, formeaza pe suprafata metalului un film de protectie care izoleaza metalul de mediul corosiv si formeaza amestecuri sinergetice cu alti inhibitori filmanti solubili în solventi nepolari.The invention relates to a corrosion inhibitor with neutralizing and film-forming action, for the protection of metallic surfaces at the top of fractionation columns in petrochemical plants. The corrosion inhibitor is soluble in non-polar and water-dispersible solvents, consisting of 20 ... 50 parts by weight of Mannich base, 2 ... 10 parts by weight of technical triethanolamine, 1 ... 5 parts by weight of nonylphenol ethoxylated with 2 ... 4 moles of ethylene oxide, 1 ... 2 parts by weight of monoethanolamine and 30 ... 76 parts by weight of C3-C7 saturated aliphatic alcohols, technical triethanolamine having at least 85% triethanolamine, max. 1% diethanolamine and max. 15% polyethers. This inhibitor acts both in the vapor phase and in the liquid phase, neutralizing organic and inorganic acid, forms on the surface of the metal a protective film that isolates the metal from the corrosive medium and forms synergistic mixtures with other non-polar solvents soluble film-forming inhibitors.

RO122927A 1986-04-08 1986-04-08 Corrosion inhibitor for petrochemical installations RO93908B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RO122927A RO93908B1 (en) 1986-04-08 1986-04-08 Corrosion inhibitor for petrochemical installations

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RO122927A RO93908B1 (en) 1986-04-08 1986-04-08 Corrosion inhibitor for petrochemical installations

Publications (2)

Publication Number Publication Date
RO93908A2 RO93908A2 (en) 1988-04-30
RO93908B1 true RO93908B1 (en) 1988-05-01

Family

ID=20119248

Family Applications (1)

Application Number Title Priority Date Filing Date
RO122927A RO93908B1 (en) 1986-04-08 1986-04-08 Corrosion inhibitor for petrochemical installations

Country Status (1)

Country Link
RO (1) RO93908B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101113524B (en) * 2007-09-04 2011-02-02 天津市华阳新兴科技有限公司 Cleaning antirust agent and preparation method thereof

Also Published As

Publication number Publication date
RO93908A2 (en) 1988-04-30

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