High basic value (TBN300) sulfurized calcium alkyl phenate and preparation thereof

A technology of sulfurized calcium alkyl phenolate and high base value, which is applied in the preparation of sulfides, hydrogenated polysulfides/polysulfides, organic chemistry, etc., and can solve the problems of harsh reaction conditions, increased production costs, and difficult user acceptance. , to achieve the effect of low precipitation value, high alkali value and improved flexibility

Active Publication Date: 2009-02-25
JINZHOU DPF TH CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, too high viscosity will limit the product when preparing internal combustion engine oil
The third class, reaction conditions are too harsh: in the U.S 5677270 patent, react with dodecylphenol and calcium hydroxide and sulfur, take formic ...

Method used

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  • High basic value (TBN300) sulfurized calcium alkyl phenate and preparation thereof
  • High basic value (TBN300) sulfurized calcium alkyl phenate and preparation thereof
  • High basic value (TBN300) sulfurized calcium alkyl phenate and preparation thereof

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0032] The chemical structure of this high base number (TBN300) sulfurized alkylphenate calcium is as follows:

[0033]

[0034] In the formula: R base - is C 9 -C 21 straight-chain or branched-chain saturated hydrocarbon structure,

[0035] X—1-4,

[0036] n—5-9.

[0037] The R group of the compound has at least nine carbon atoms, which can be nine, twelve, fifteen, eighteen and twenty-one carbon atoms, and the R group is a linear or branched saturated hydrocarbon structure, which is derived from nonyl Phenols, dodecylphenols, up to uncodecylphenols.

[0038] 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 5-9.

example 2

[0040] The preparation process of high alkali value (TBN300) sulfurized alkylphenate calcium is as follows:

[0041] 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 hexadecylphenol can be selected for use, and dodecylphenol is selected in this example. Shielded phenolic compound refers to the compound that there is a branched chain substituent from three carb...

example 3

[0045] The preparation process of high alkali value (TBN300) sulfurized alkylphenate calcium is as follows:

[0046] 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 hexadecylphenol can be selected for use, and pentadecylphenol is selected in this example. Shielded phenolic compound refers to the compound that there is a branched chain substituent from three c...

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Abstract

The invention relates to a high base number (TBN300) sulfuration alkylphenol calcium and a preparation method thereof; the chemical structural formula of the sulfuration alkylphenol calcium is shown at right, and alkyl phenolic compound, shielding phenolic compound, calcium oxide and/or calcium hydroxide and sulfur are put into a system containing solvent and diluent oil to have sulfuration/neutralization reaction to generate phenate intermediate; carbon dioxide is pumped into the system to have carbonatation reaction; alkyl polylol is added to take part in the reaction when the sulfuration/neutralization reaction is carried out, or the alkyl polylol is respectively added to take part in the reactions when the sulfuration/neutralization reaction and the carbonatation reaction are carried out; long chain carboxylic acid is added to take part in the reaction when the sulfuration/neutralization reaction or the carbonatation reaction is carried out, or the long chain carboxylic acid is respectively added to take part in the reactions when the sulfuration/neutralization reaction and the carbonatation reaction are carried out; the products are refined to prepare the finished goods. The sulfuration alkylphenol calcium is characterized by high base number, low viscosity and precipitation number, good heat storage stability, and the like; as having excellent cleanliness, hydrolysis invariability, alkali retentivity and good inoxidability, the sulfuration alkylphenol calcium causes no environmental protection problem when in use, and belongs to environment-friendly products; as one-step technique is adopted, the reactions are moderate, and filtration is easy.

Description

technical field [0001] The invention relates to a high alkali value (TBN300) 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, can well disperse the sludge, paint film and soot in the oil, and remove the deposits in the oil tank to keep it clean. [0003] At present, there are two types of sulfurized calcium alkylphenate products in China, which are: medium alkali value (TBN130) sulfurized calcium alkylphenate and high alkali value (TBN250) sulfurized calcium alk...

Claims

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Application Information

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