CN1103660A - After-treatment of sulfur-preserving and denitrifying additive for base oil of lubricating oil - Google Patents
After-treatment of sulfur-preserving and denitrifying additive for base oil of lubricating oil Download PDFInfo
- Publication number
- CN1103660A CN1103660A CN 94116575 CN94116575A CN1103660A CN 1103660 A CN1103660 A CN 1103660A CN 94116575 CN94116575 CN 94116575 CN 94116575 A CN94116575 A CN 94116575A CN 1103660 A CN1103660 A CN 1103660A
- Authority
- CN
- China
- Prior art keywords
- oil
- polar solvent
- sulfur
- preserving
- nitride
- Prior art date
- Legal status (The legal status 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 status listed.)
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Abstract
In the present invention, the leavings produced by adding sulfur-keeping and denitrifying additive to the base oil of lubricating oil are treated with solution of base compound and polar solvent, so that the nitride is dissociated. Using this way, the dissociated nitride is used as industrial fuel and the organic polar solvent can reused.
Description
The invention belongs to the lubricating oil field, relate to and lubricant base is carried out sulfur-preserving and denitrifying add after the additive, to the treatment process of the useless thick thing of nitrogenate and denitrfying agent, International Classification of Patents belongs to C10M177/00.
Nitrogen content is generally 0.04～0.4% in the well-known crude oil, content much smaller than sulphur, 90% crude oil nitrogen content is all less than 0.2% in the world, its mean value is 0.094%, and the most of crude oil nitrogen content of China is about 0.3%, belong to high nitrogenous crude oil, at present the high nitrogen content of the crude oil in China of finding is 1.32%, the nitrogen distribution is rapid the increasing of rising nitrogen content along with fraction oil boiling point in the oil, wherein about 80% nitrogen concentrates in the fraction oil more than 400 ℃, promptly concentrate in the lubricant base, it is closely related that domestic and international many documents are illustrated oxidation stability and its chemical constitution of lubricant base.And sulfide wherein has certain restraining effect to the oxidation of lubricant base, it is the oxidation stability that the existence of sulfide can improve base oil, and nitride, especially basic nitrogen compound is very harmful to the oxidation stability of lubricant base, can quicken oil oxidation, since China's lubricant base with compare characteristics abroad with the high nitrogen of low-sulfur, so oxidation stability is generally relatively poor, in order to improve the nitrogenize stability of lubricant base, CN94115100.5 invention provides a kind of lubricant base that is used for (to comprise that boiling range is greater than 360 ℃ wax oil, residual oil, heavy aromatics oil) the sulfur-preserving and denitrifying agent that the strong denitrification percent of selectivity is high, this denitrfying agent is by A, B, C three parts are formed, be that A is an acidizer, B is that complexing agent and C are that solvent three parts are formed, and the A acidizer comprises phosphorous acid, Hypophosporous Acid, 50, metaphosphoric acid, ortho-phosphoric acid, polyphosphoric acid, phosphorus trioxide, six tetraphosphine oxides, Vanadium Pentoxide in FLAKES, six tetraphosphine oxides, organic acid anhydride comprises diacetyl oxide, maleic anhydride, pyromellitic acid anhydride B complexing agent comprises phosphorus trioxide, six tetraphosphine oxides, Vanadium Pentoxide in FLAKES, ten tetraphosphine oxides, P
4S
3, P
4S
6, P
4S
7, P
4S
10, the C solvent comprises that water, methyl alcohol, ethanol, propyl alcohol, butanols, acetone, furfural forms, the shared ratio of its composition is: A is 6.85%(wt); B is 0.1-85%(wt); C is 0.1-85%(wt), utilize the sulfur-preserving and denitrifying agent lubricating oil to be carried out being divided into after the denitrogenation processing two-layer, the upper strata is a denitrogenation oil, lower floor is the thick waste residue of denitrfying agent and nitride.
The objective of the invention is to the nitrogenate after handling with the CN94115190.5 additives for base oil of lubricating oil and the thick waste residue of denitrfying agent are handled, thereby reclaim nitride, avoid environmental pollution.
The highly selective sulfur-preserving and denitrifying additive that CN94116100.5 provided is handled the waste residue that lubricant base produced handle, method is to comprise mineral alkali: NaOH, KOH, NH with basic component (A)
3, Ca(OH)
2, NH
4OH; Organic bases: monoethanolamine, diethanolamine, trolamine, have R-NH
2Compound; Salt such as Na that strong base weak acid generates
2CO
3, NaHCO
3, NaAc, Na
3PO
4, Na
2S, Na
2HPO
4, NaH
2PO
4Water glass, Sodium Tetraborate; And polar solvent (B) comprises saturated solution or unsaturated solution and waste residue stirring reaction that methyl alcohol, ethanol, propyl alcohol, butanols, acetone, butanone and water are formed, sedimentation layering then, nitride dissociates out from polar solvent, thereby reclaims nitride, processing waste residue, avoids contaminate environment.
Nitride can dissociate out after the residue treatment after the denitrogenation, comprise the quinoline woods through the infrared spectrum analysis nitride, Yin, carbazole, N-methylpyrrole compounds, it is carried out the standard that viscosity, condensation point, flash-point, ash content, mechanical impurity, sulphur content analysis of physical and chemical property all meet No. 3 heavy oil, therefore through the waste residue of the aftertreatment oil that can act as a fuel, the recycling of organic polar solvent energy, and eliminated the pollution of waste residue to environment.
Embodiment 1
The 750SN lubricant base, its alkali nitrogen content 266ppm, the residue 10g after the denitrogenation, add KOH aqueous ethanolic solution 100g, KOH5% wherein, ethanol 45% and water 50% stir 20min down at 70 ℃, the post precipitation nitride dissociates out, and the alkali nitrogen content is 19857ppm in the nitride
Embodiment 2
Paraffinic base 500SN lubricant base contains alkali nitrogen 15ppm, and residue after the denitrogenation is handled with the NaOH aqueous acetone solution: wherein NaOH10%, acetone 30%, water 60%.Stir 30min down at 50 ℃, the post precipitation nitride dissociates out, and it contains alkali nitrogen is 2320g ppm, and its analysis of physical and chemical property sees Table 1.
Learn that by table-1 nitride of recovery meets the requirement of 3# heavy oil fully.
Claims (3)
1, a kind of lubricant base adds behind the sulfur-preserving and denitrifying additive method to the residue treatment that produces, it is characterized in that mixing stirring with residue with the solution that basic component (A) and polar solvent (B) are formed, sedimentation then, nitride dissociate out as industrial fuel, and organic polar solvent can reclaim and use.
2, method according to claim 1 is characterized in that basic component (A) comprises mineral alkali: NaOH, NH
3, KOH, Ca(OH)
2, NH
4OH; Comprise containing-NH
2,-NH-,-organo-alkali compound of N-: ethamine, monoethanolamine, diethanolamine, trolamine; Also comprise the salt that strong base weak acid generates: Na
2CO
3, NaHCO
3, Na
3PO
4, Na
2HPO
4, NaH
2PO
4, NaAc, Na
2S, water glass, Sodium Tetraborate.
3, method according to claim 1 is characterized in that polar solvent comprises ethanol, methyl alcohol, propyl alcohol, butanols, acetone, butanone and water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94116575 CN1032699C (en) | 1994-10-10 | 1994-10-10 | After-treatment of sulfur-preserving and denitrifying additive for base oil of lubricating oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94116575 CN1032699C (en) | 1994-10-10 | 1994-10-10 | After-treatment of sulfur-preserving and denitrifying additive for base oil of lubricating oil |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1103660A true CN1103660A (en) | 1995-06-14 |
| CN1032699C CN1032699C (en) | 1996-09-04 |
Family
ID=5037983
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94116575 Expired - Lifetime CN1032699C (en) | 1994-10-10 | 1994-10-10 | After-treatment of sulfur-preserving and denitrifying additive for base oil of lubricating oil |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1032699C (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1064391C (en) * | 1997-04-21 | 2001-04-11 | 荆门石油化工研究院 | Method of extracting acid agent and nitrides from denitrified residual in prodn. of lubricating oil basic oil |
| CN1103361C (en) * | 1997-03-28 | 2003-03-19 | 许乐新 | Process for treating petroleum product denitrification waste residue |
| CN102127463A (en) * | 2010-01-20 | 2011-07-20 | 沈陟 | Method for recycling denitrifying agent |
| CN104312614A (en) * | 2014-10-29 | 2015-01-28 | 北京石油化工学院 | Treatment method of denitrified tail oil of base oil of lubricating oil |
-
1994
- 1994-10-10 CN CN 94116575 patent/CN1032699C/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1103361C (en) * | 1997-03-28 | 2003-03-19 | 许乐新 | Process for treating petroleum product denitrification waste residue |
| CN1064391C (en) * | 1997-04-21 | 2001-04-11 | 荆门石油化工研究院 | Method of extracting acid agent and nitrides from denitrified residual in prodn. of lubricating oil basic oil |
| CN102127463A (en) * | 2010-01-20 | 2011-07-20 | 沈陟 | Method for recycling denitrifying agent |
| CN102127463B (en) * | 2010-01-20 | 2013-08-21 | 沈陟 | Method for recycling denitrifying agent |
| CN104312614A (en) * | 2014-10-29 | 2015-01-28 | 北京石油化工学院 | Treatment method of denitrified tail oil of base oil of lubricating oil |
| CN104312614B (en) * | 2014-10-29 | 2016-04-06 | 北京石油化工学院 | The complexometry denitrogenation tail oil treatment process of lubricant base |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1032699C (en) | 1996-09-04 |
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Owner name: CHINA PETROCHEMICAL CORPORATION Free format text: FORMER OWNER: CHINA PETROCHEMICAL CORPORATION; WUHAN PETRO-CHEMICAL PLANT, CHINA PETRO-CHEMICAL CORP. Effective date: 20080815 |
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Owner name: CHINA PETROCHEMICAL CORPORATION; WUHAN PETRO-CHEMI Free format text: FORMER NAME OR ADDRESS: CHINA PETRO-CHEMICAL CORP.; CHINA PETROCHEMICAL WUHAN OIL CHEMICAL WORKS |
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Address after: Wuhan branch, Evergreen Road, Qingshan District, Hubei, Wuhan Province, China: 430082 Co-patentee after: WUHAN PETRO CHEMICAL PLANT CHI Patentee after: CHINA PETROLEUM & CHEMICAL Corp. Address before: Beijing City Anwai Xiaoguan Street No. 24 China Petrochemical Industry General Co. Co-patentee before: Wuhan Petro-chemical Factory, China Petro-chemical Corp. Patentee before: China Petrochemical Corporation |
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Effective date of registration: 20080815 Address after: Wuhan branch, Evergreen Road, Qingshan District, Hubei, Wuhan Province, China: 430082 Patentee after: CHINA PETROLEUM & CHEMICAL Corp. Address before: Wuhan branch, Evergreen Road, Qingshan District, Hubei, Wuhan Province, China: 430082 Co-patentee before: WUHAN PETRO CHEMICAL PLANT CHI Patentee before: CHINA PETROLEUM & CHEMICAL Corp. |
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Expiration termination date: 20141010 Granted publication date: 19960904 |