High basic value (TBN400) sulfurized calcium alkyl and preparation method thereof

A technology of sulfurized calcium alkylphenate and high alkali value, which is applied in the fields of sulfide preparation, hydrogenated polysulfide/polysulfide preparation, organic chemistry, etc., and can solve the problems of increased production of finished products, harsh reaction conditions, and high reaction temperature. Achieve improved flexibility, low viscosity and light color

Active Publication Date: 2009-05-06
JINZHOU DPF TH CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At the same time, too high viscosity will limit the product when preparing internal combustion engine oil
The third category, the reaction conditions are too harsh: in the U.S. 5677270 patent, when dodecylphenol is reacted with calcium hydroxide and sulfur, formic acid / acetic acid, ethylene glycol and stearic acid are used as accelerators, and carbon dioxide is introduced to carry out carbonation The chemical reaction can produce sulfurized calcium alkylphenate products with a total base value of 400mgKOH / g, but the reaction temperature of this process is high (205°C), the reaction conditions are harsh, and the energy consumption is high, which greatly increases the production of finished products and is difficult to be produced. User accepts

Method used

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  • High basic value (TBN400) sulfurized calcium alkyl and preparation method thereof
  • High basic value (TBN400) sulfurized calcium alkyl and preparation method thereof
  • High basic value (TBN400) sulfurized calcium alkyl and preparation method thereof

Examples

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Effect test

example 1

[0031] The chemical structure of the high base number (TBN400) sulfurized calcium alkylphenate is as follows:

[0032]

[0033] In the formula: R group - is C 9 -C 21 straight-chain or branched-chain saturated hydrocarbon structure.

[0034] X—1-4.

[0035] n—10-14.

[0036] The R group of the compound has at least nine carbon atoms, and may be nine, twelve, fifteen, eighteen and twenty-one carbon atoms. The R group is a straight-chain or branched saturated hydrocarbon structure, which is derived from nonylphenol, dodecylphenol, and up to 21-carbon alkylphenol.

[0037] In the -S(x)-bond in the compound, the number of its x includes 1, 2 up to 4, (CaCO in the compound 3 The value of n in the )n structure is 10-14.

example 2

[0039] The high alkali value (TBN400) sulfurized alkyl phenate calcium preparation process is:

[0040] In a system containing solvent and diluent oil, combine (a) alkylphenolic compound, (b) shielded phenolic compound with (c) calcium oxide and / or calcium hydroxide, (d) sulfur, (e) alkyl The mixture of polyhydric alcohol and (f) long-chain carboxylic acid undergoes vulcanization and neutralization reaction to generate phenate intermediate. Among them, the alkylphenol compound is a monosubstituted phenol, the R group of the alkylphenol contains at least nine carbon atoms, including nine carbon atoms to twenty-one carbon atoms, and the R group is a straight-chain or branched saturated hydrocarbon structure. Nonylphenol, dodecylphenol, pentadecylphenol, octadecylphenol or behenylphenol can be used, and dodecylphenol is selected in this example. Shielded phenolic compounds refer to compounds with branched chain substituents from three to twelve carbons on at least one ortho pos...

example 3

[0044] The high alkali value (TBN400) sulfurized alkyl phenate calcium preparation process is:

[0045] In a system containing solvent and diluent oil, combine (a) alkylphenolic compound, (b) shielded phenolic compound with (c) calcium oxide and / or calcium hydroxide, (d) sulfur, (e) alkyl The mixture of polyhydric alcohol and (f) long-chain carboxylic acid undergoes vulcanization and neutralization reaction to generate phenate intermediate. Among them, the alkylphenol compound is a monosubstituted phenol, the R group of the alkylphenol contains at least nine carbon atoms, including nine carbon atoms to twenty-one carbon atoms, and the R group is a straight-chain or branched saturated hydrocarbon structure. Nonylphenol, dodecylphenol, pentadecylphenol, octadecylphenol or behenylphenol can be used, and dodecylphenol is selected in this example. Shielded phenolic compounds refer to compounds with branched chain substituents from three to twelve carbons on at least one ortho pos...

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Abstract

The invention relates to high base number (TBN400) vulcanized alkyl phenol calcium and a preparation method thereof. The vulcanized alkyl phenol calcium has a chemical structure as right. The preparation method is as follows: in a system containing solvent and diluent oil, alkyl phenol compound, shielded phenol compound, calcium oxide and / or calcium hydroxide and sulfur are subjected to sulfonation / neutralization reaction at a temperature of between 60 and 180 DEG C to generate phenolate intermediate; balanced calcium oxide and / or calcium hydroxide are added into the mixture, carbon dioxide is introduced, and the mixture is subjected to carbonation reaction; and alkyl polylol is added into the mixture at the sulfonation / neutralization reaction or respectively at the sulfonation / neutralization reaction and the carbonation reaction to participate in the reaction, long-chain carboxylic acid is added into the mixture at the sulfonation / neutralization reaction or respectively at the sulfonation / neutralization reaction and the carbonation reaction to participate in the reaction, and products are obtained through refining. The vulcanized alkyl phenol calcium has the characteristics of high base number, low viscosity, low precipitation number, good heat storage stability, and the like, and has excellent combination property, does not cause environmental protection problem during use, and belongs to an environment-friendly product, and adopts a one-stage process, has mild reaction conditions, and is easy to filter.

Description

technical field [0001] The invention relates to a high alkali value (TBN400) sulfurized calcium alkylphenate and a preparation method thereof. Background technique [0002] Calcium sulfurized alkylphenate is a lubricating oil additive widely used and used in a large amount, and is the main additive component for preparing internal combustion engine oil and marine oil. Adding it to the oil can effectively neutralize the acidic substances produced by the corrosion of the machine parts and the oxidation of the oil, and increase the anti-oxidation and cleaning ability of the oil. When compounded with other additives, it has good compatibility and can well disperse the oil sludge, paint film and soot in the oil, remove the deposits in the oil tank and keep it clean. [0003] At present, there are two kinds of sulfurized calcium alkylphenate products in China, which are: medium alkali value (TBN130) sulfurized calcium alkylphenate and high alkali value (TBN250) sulfurized calcium...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07C323/20C07C319/14C07C319/22C10M135/28C10N30/04
Inventor 魏奇
Owner JINZHOU DPF TH CHEM CO LTD
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