RU94038844A - Method of preparing high-alkaline alkylsalicylate additive for lubricating oils - Google Patents
Method of preparing high-alkaline alkylsalicylate additive for lubricating oilsInfo
- Publication number
- RU94038844A RU94038844A RU94038844/04A RU94038844A RU94038844A RU 94038844 A RU94038844 A RU 94038844A RU 94038844/04 A RU94038844/04 A RU 94038844/04A RU 94038844 A RU94038844 A RU 94038844A RU 94038844 A RU94038844 A RU 94038844A
- Authority
- RU
- Russia
- Prior art keywords
- additive
- earth metal
- promoter
- alkyl
- alkaline
- Prior art date
Links
- 239000000654 additive Substances 0.000 title claims abstract 10
- 230000000996 additive effect Effects 0.000 title claims abstract 9
- 238000000034 method Methods 0.000 title claims abstract 6
- 239000010687 lubricating oil Substances 0.000 title claims abstract 4
- 239000002904 solvent Substances 0.000 claims abstract 6
- 238000006386 neutralization reaction Methods 0.000 claims abstract 5
- 239000004215 Carbon black (E152) Substances 0.000 claims abstract 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract 4
- 229930195733 hydrocarbon Natural products 0.000 claims abstract 4
- 150000002430 hydrocarbons Chemical class 0.000 claims abstract 4
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims abstract 2
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract 2
- 239000001569 carbon dioxide Substances 0.000 claims abstract 2
- 239000002480 mineral oil Substances 0.000 claims abstract 2
- 235000010446 mineral oil Nutrition 0.000 claims abstract 2
- 239000011541 reaction mixture Substances 0.000 claims abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract 2
- -1 alkyl salicylate Chemical compound 0.000 claims 4
- 229960001860 salicylate Drugs 0.000 claims 3
- 229910001860 alkaline earth metal hydroxide Inorganic materials 0.000 claims 2
- 239000012535 impurity Substances 0.000 claims 2
- 150000001342 alkaline earth metals Chemical class 0.000 claims 1
- 125000000217 alkyl group Chemical group 0.000 claims 1
- 125000004432 carbon atom Chemical group C* 0.000 claims 1
- 238000004140 cleaning Methods 0.000 claims 1
- 238000004519 manufacturing process Methods 0.000 claims 1
- 238000000746 purification Methods 0.000 claims 1
- YGSDEFSMJLZEOE-UHFFFAOYSA-M salicylate Chemical compound OC1=CC=CC=C1C([O-])=O YGSDEFSMJLZEOE-UHFFFAOYSA-M 0.000 claims 1
- 239000002245 particle Substances 0.000 abstract 3
- 239000007787 solid Substances 0.000 abstract 3
- 239000002253 acid Substances 0.000 abstract 2
- 150000007513 acids Chemical class 0.000 abstract 2
- 150000005325 alkali earth metal hydroxides Chemical class 0.000 abstract 2
- 230000000694 effects Effects 0.000 abstract 1
- 230000003472 neutralizing effect Effects 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
Landscapes
- Lubricants (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
FIELD: lubricating oil additives. SUBSTANCE: method includes neutralizing alkylsalicylic acids with alkali- earth metal hydroxide in presence of mineral oil and hydrocarbon solvent, treating neutralization product to remove solid particles, and treating it with carbon dioxide and alkali-earth metal hydroxide in presence of hydrocarbon solvent and promoter at 65-80 C with 0.5- 35% water based on alkali-earth metal alkylsalicylate weight. Solvent and promoter are then stripped and resulting additive is set free from solid particles. In order to provide higher yield of additive and reduce its viscosity, neutralization product, prior to be treated to remove solid particles, is treated at 70-90 C with alkylsalicylic acids taken in quantity 5-30% based on reaction mixture weight. EFFECT: accelerated process with no loss in additive quality.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU94038844/04A RU2068443C1 (en) | 1994-10-20 | 1994-10-20 | Method of preparing high-alkaline alkylsalicylate addition agent to lubricant oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU94038844/04A RU2068443C1 (en) | 1994-10-20 | 1994-10-20 | Method of preparing high-alkaline alkylsalicylate addition agent to lubricant oil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| RU2068443C1 RU2068443C1 (en) | 1996-10-27 |
| RU94038844A true RU94038844A (en) | 1997-03-27 |
Family
ID=20161781
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RU94038844/04A RU2068443C1 (en) | 1994-10-20 | 1994-10-20 | Method of preparing high-alkaline alkylsalicylate addition agent to lubricant oil |
Country Status (1)
| Country | Link |
|---|---|
| RU (1) | RU2068443C1 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2188849C1 (en) * | 2001-01-12 | 2002-09-10 | Акционерное общество "Галол" | Method of preparing high-alkalinity alkylsalicylate lubrication oil additives |
| US7009072B2 (en) * | 2002-10-31 | 2006-03-07 | Crompton Corporation | Method for producing lubricant detergents |
| US7407920B2 (en) * | 2004-07-29 | 2008-08-05 | Crompton Corporation | Overbased calcium salicylate greases |
| RU2611431C2 (en) * | 2015-06-19 | 2017-02-22 | Открытое акционерное общество "Средневолжский научно-исследовательский институт по нефтепереработке" (ОАО "СвНИИНП") | Method of producing low-ash alkylsalicylate detergent-dispersing oil additive |
| CN116478748B (en) * | 2022-01-13 | 2024-07-19 | 中国石油天然气股份有限公司 | A preparation method of neutral salicylate detergent |
-
1994
- 1994-10-20 RU RU94038844/04A patent/RU2068443C1/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| RU2068443C1 (en) | 1996-10-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM4A | The patent is invalid due to non-payment of fees |
Effective date: 20051021 |