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Natural and synthetic sodium sulfonate emulsifier blends

An emulsifier and blend technology, applied in lubricating compositions, chemical/physical processes, additives, etc., can solve problems such as changes in emulsification properties, inconsistent quality of natural petroleum sulfonates, etc.

Inactive Publication Date: 2008-02-06
CHEMTURA CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Another major disadvantage that accompanies natural petroleum sulfonates is the inconsistency in their quality and thus the variation in their emulsifying properties

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0010] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

[0011] The present invention relates to a blend of natural and synthetic alkali metal sulfonates, preferably sodium sulfonates. Natural sodium sulfonates are prepared by sulfonation of petroleum fractions derived from naturally occurring crude oils. Synthetic sodium sulfonates are prepared by sulfonation of selected hydrocarbon compounds such as linear or branched alkyl or alkylaromatic compounds.

[0012] The list of sulfonates in Table 1 below is exemplary of various sulfonates that can be blended to produce products with emulsifying properties comparable to or better than Shell Reg (465). These sulfonates are commercially available and are provided herein by the following designations for the purpose of identifying these sulfonates corresponding to the test results in the Examples below.

[0013] Table 1

[0014] Sulfonate Description

[0015] Sulfonate A Sodium salt of straight-chain mono- and dialkylbenzenesul...

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PUM

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Abstract

An emulsifier composition includes at least one natural alkali metal petroleum sulfonate and at least one synthetic alkali metal sulfonate. The emulsifier composition can be combined with a lubricant oil to provide a water-miscible lubricating oil concentrate which forms a stable aqueous emulsion upon the addition thereto of an aqueous medium.

Description

[0001] Cross References to Related Applications [0002] This application claims priority to US Provisional Application Serial No. 60 / 653,685, filed February 15, 2005 and claiming priority, which is incorporated herein by reference. [0003] background 1. Field of invention [0004] The present invention relates to an emulsifier composition comprising a blend of natural and synthetic sodium sulfonates. 2. Technical Background [0005] Sodium petroleum sulfonate is widely used as the primary emulsifier in the formulation of emulsifiable lubricating compositions for cutting fluids, hydraulic fluids, metalworking lubricants, and the like. [0006] Sodium petroleum sulfonate is commonly produced as a by-product of refining processes in which certain highly refined petroleum products are produced, such as white lubricating oils, pharmaceutical oils, and certain grades of transformer oil. Highly refined petroleum products made by treating refined petroleum distillates or raffina...

Claims

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Application Information

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IPC IPC(8): B01F17/02B01F17/08B01F17/12C10M135/10C10M173/00C10M169/04C09K23/02C09K23/08C09K23/12
Inventor M·T·科斯特洛I·里夫J·A·韦弗R·F·塞伯特
Owner CHEMTURA CORP