SU166428A1 - METHOD OF OBTAINING METAL CORROSION INHIBITOR - Google Patents
METHOD OF OBTAINING METAL CORROSION INHIBITORInfo
- Publication number
- SU166428A1 SU166428A1 SU883064A SU883064A SU166428A1 SU 166428 A1 SU166428 A1 SU 166428A1 SU 883064 A SU883064 A SU 883064A SU 883064 A SU883064 A SU 883064A SU 166428 A1 SU166428 A1 SU 166428A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- corrosion inhibitor
- metal corrosion
- obtaining metal
- imidazoline
- acid
- Prior art date
Links
- 239000003112 inhibitor Substances 0.000 title description 4
- 230000002401 inhibitory effect Effects 0.000 title description 4
- 238000005260 corrosion Methods 0.000 title description 3
- 239000002184 metal Substances 0.000 title description 3
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N Oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 6
- MTNDZQHUAFNZQY-UHFFFAOYSA-N 2-Imidazoline Chemical compound C1CN=CN1 MTNDZQHUAFNZQY-UHFFFAOYSA-N 0.000 description 5
- PIICEJLVQHRZGT-UHFFFAOYSA-N 1,2-ethanediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 3
- 239000005642 Oleic acid Substances 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 125000000217 alkyl group Chemical group 0.000 description 3
- -1 hydroxyethyl Chemical group 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 235000014113 dietary fatty acids Nutrition 0.000 description 2
- 239000000194 fatty acid Substances 0.000 description 2
- 150000004665 fatty acids Chemical class 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- LHIJANUOQQMGNT-UHFFFAOYSA-N Aminoethylethanolamine Chemical compound NCCNCCO LHIJANUOQQMGNT-UHFFFAOYSA-N 0.000 description 1
- 208000008425 Protein Deficiency Diseases 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- 150000001735 carboxylic acids Chemical class 0.000 description 1
- 238000007046 ethoxylation reaction Methods 0.000 description 1
- 150000001261 hydroxy acids Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- IAYPIBMASNFSPL-UHFFFAOYSA-N oxane Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000002194 synthesizing Effects 0.000 description 1
Description
Известен способ получени ингибитора коррозии металлов - оксиэтилалкилимидазолина путем оксиэтилировани этилендиамина и конденсации полученного продукта с олеиновой кислотой. Однако вследствие высокой стоимости олеиновой кислоты и ее дефицитности применение оксиэтилалкилимидазолина было ограничено.A method of producing a metal corrosion inhibitor, hydroxyethyl alkyl imidazoline, is known by ethoxylation of ethylene diamine and condensation of the resulting product with oleic acid. However, due to the high cost of oleic acid and its deficiency, the use of hydroxyethyl alkyl imidazoline was limited.
Предлагаетс использовать в качестве сырь дл синтеза этого ингибитора вместо олеиновой кислоты кубовые остатки от ректификации синтетических жирных кислот, представл ющ ие €обой смесь высших карбоновых кислот С21 и выше и оксикислот.It is proposed to use as a raw material for the synthesis of this inhibitor, instead of oleic acid, bottom residues from the rectification of synthetic fatty acids, which is a mixture of higher carboxylic acids of C21 and higher and hydroxy acids.
Процесс приготовлени оксиэтилалкилимидазолина заключаетс в следующем. В аппарат с мешалкой, охлаждаемый рассолом, загружают 370 кг этилендиамина и постепенно при температуре 5-8° С прибавл ют 150 кг окиСИ этилена. По окончании реакции избыток этилендиамина (в количестве 200 кг отгон ют и снова возвращают в реакцию, а оксиэтилэтилендиамин загружают в обогреваемый до 170° С реактор на конденсацию с 820 кг кубовых остатков.The process for the preparation of hydroxyethylalkyl imidazoline is as follows. 370 kg of ethylenediamine are loaded into the apparatus with a stirrer, cooled with brine, and 150 kg of ethylene oxide are gradually added at a temperature of 5-8 ° C. At the end of the reaction, an excess of ethylene diamine (in the amount of 200 kg is distilled off and returned to the reaction, and the hydroxyethylethylenediamine is loaded into a condensation reactor heated to 170 ° C from 820 kg of bottom residues.
В результате получают 1 т оксиэтилалкилимидазолина в виде светло-коричневой пасты.The result is 1 ton of hydroxyethylalkyl imidazoline in the form of a light brown paste.
10ten
Предмет изобретени Subject invention
Способ получени ингибитора коррозии металлов - оксиэтилалкилимидазолина с применением в качестве исходного сырь кислоты , отличающийс тем, что, -с целью удешевлени -продукта, в качестве кислоты примен ют кубовый остаток от ректификации синтетических жирных кислот.A method for producing a metal corrosion inhibitor, hydroxyethyl alkyl imidazoline, using an acid as a raw material, characterized in that, in order to reduce the cost of the product, an acid residue from the rectification of synthetic fatty acids is used as an acid.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU166428A1 true SU166428A1 (en) |
Family
ID=
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS611640A (en) | Manufacture of fatty acid ester of short chain alcohol | |
| JPS61236749A (en) | Manufacture of carboxylic acid alkyl ester, particularly fatty acid alkyl ester and use for diesel fuel | |
| US5416239A (en) | Process for the production of fatty ketones | |
| WO2013072466A1 (en) | Method for producing compounds comprising nitrile functions | |
| US1433308A (en) | Process of obtaining complete alcoholysis | |
| US6420577B1 (en) | Method for commercial preparation of conjugated linoleic acid | |
| US20040254387A1 (en) | Method of making alkyl esters | |
| SU166428A1 (en) | METHOD OF OBTAINING METAL CORROSION INHIBITOR | |
| US4189593A (en) | Process for making imidazolines | |
| US2521742A (en) | Method of treating low-grade fatty materials | |
| RU2463289C2 (en) | METHOD OF PRODUCING N-2-ETHYLHEXYL-N'-PHENYL-p-PHENYLENEDIAMINE | |
| RU2373190C2 (en) | Method of producing n-2-ethylhexyl-n'-phenyl-n-phenylenediamine and separating commercial grade 2-ethylhexanoic acid from wastes from production of n-2-ethyhexyl-n'-phenyl-n-phenylenediamine | |
| US5681971A (en) | Synthesis of fatty N-alkyl amides | |
| US4058553A (en) | Method of preparing alkoxymethylenemalonic acid esters | |
| JPS63150235A (en) | Manufacture of fatty acid nitrile and glycerine from glyceride | |
| US3253006A (en) | Preparation of amides of higher fatty acids | |
| US1954433A (en) | Method of preparing acid amides | |
| RU2754324C1 (en) | Method for obtaining bis-imidazolines and their derivatives based on tetraethylenepentamines for corrosion protection of oilfield equipment and pipelines | |
| EP0497920A1 (en) | Process for the production of polybasic acid esters with recovery of boron trifluoride | |
| Kramarev et al. | Influence of vacuum on kinetic of low quality rapeseed oil amidation by aminoethylethanolamine | |
| US5144040A (en) | Process for the preparation of 1-(acylaminoalkyl)-2-imidazolines substituted in the 2 position | |
| SU189417A1 (en) | Method of producing tetraalkyldiamides of aliphatic dicarboxylic acids | |
| RU2813102C1 (en) | Method of producing esters of carboxylic acids | |
| CN117247325A (en) | Fish oil bio-based esteramine product and process preparation method thereof | |
| DE2121635C3 (en) |