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Detergent for synthetic calcium alkyl benzene sulfonate type lubricating oil and production technology

A technology of calcium alkylbenzene sulfonate and lubricating oil, applied in the petroleum industry, lubricating compositions, additives, etc., can solve problems such as undiscovered filter cake treatment methods, achieve the effect of reducing product cost and improving utilization rate

Inactive Publication Date: 2013-01-30
JINZHOU DPF TH CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

No report on the treatment method of the filter cake was found in the published literature

Method used

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  • Detergent for synthetic calcium alkyl benzene sulfonate type lubricating oil and production technology
  • Detergent for synthetic calcium alkyl benzene sulfonate type lubricating oil and production technology
  • Detergent for synthetic calcium alkyl benzene sulfonate type lubricating oil and production technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] (1) Prepare a mixture of calcium oxide and neutral oil (hereinafter referred to as lime slurry)

[0068] Stir 70 grams of CaO (weight content greater than 93%, particle size: 325 mesh) and 90 grams of neutral oil (150SN) in a beaker at room temperature to disperse calcium oxide evenly in the neutral oil.

[0069] (2) Preparation of accelerator solution

[0070] Add 2 grams of anhydrous calcium chloride into a conical glass flask filled with 40 grams of industrial methanol, and shake it fully at room temperature to dissolve it completely.

[0071] (3) Add 155 grams of toluene, 52 grams of neutral oil, and 25 grams of 1 # , 75 g 2 # Synthesis of alkylbenzenesulfonic acid (1 # ,2 # The characteristics of sulfonic acid are: 1 #: Sulfonic acid content ≥ 85% and monoalkyl substituent ≥ 85%, average molecular weight Mn-420, alkyl substituent: C 20 -C 24 Straight-chain alkyl; 2 # : Sulfonic acid content: 60% and mainly dialkyl substitutes; average molecular...

Embodiment 2

[0089] In the present embodiment, in addition to washing the filtrate of the filter cake once with 161 grams of toluene in Example 1 instead of the actual

[0090] Except the toluene in embodiment 1, all the other are identical with embodiment 1.

[0091] Result: hot press filtration time: 3min, filtrate weight: 366g, yield: 95%

[0092] The sample characteristic parameters are as follows:

[0093]

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Abstract

The invention relates to a detergent for synthetic calcium alkyl benzene sulfonate type lubricating oil and a production technology. A technological process for producing a lubricating oil additive with TBN (total base number) being from 20 to 300mgKOH / g comprises the steps of reacting the following components with the lower temperature of 0 to 70 DEG.C: a component (A): synthetic alkyl benzene sulfonic acid; a component (B): alkaline earth alkali can be added or added more than once in the reaction process in a disposable manner; a component (C): an aromatic hydrocarbon solvent; a component (D): neutral oil; a component (E): water; a component (F): sulfurized calcium alkyl phenolate; a component (I): methane solution; a component (J): carbon dioxide (CO2), CO2 is fed to perform alkalization after the neutral reaction and then is filtered, the filter cakes and the component (C) are filtered after being uniformly mixed, and a filtrate is served as a solvent instead of the component (C).

Description

technical field [0001] The invention relates to an additive for blending lubricating oil and a production method, in particular to a synthetic alkylbenzene sulfonate calcium type lubricating oil detergent and a production process. Background technique [0002] In the production process of lubricating oil, various additives are often added to the lubricating oil, such as extreme pressure agents, detergents, and dispersants, in order to obtain certain new characteristics of the lubricating oil or improve some existing characteristics of the lubricating oil. , antioxidants, tackifiers, etc. Among a wide variety of lubricating oil additives, detergents are widely used and occupy a large proportion in lubricating oil additives. [0003] Detergent is a surface-active substance that can absorb solid particle pollutants in lubricating oil and suspend the pollutants on the surface of lubricating oil to ensure that the oil participating in the lubricating cycle is clean and reduce pa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M159/24C10N30/04
Inventor 张跃臻
Owner JINZHOU DPF TH CHEM CO LTD
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