Method for preparing calcium sulfonate with high base number

A technology of high basic number calcium sulfonate and sulfonic acid, which is applied in the preparation of sulfonate, additives, organic chemistry, etc., can solve the problem of poor conversion effect, slow conversion of Newtonian calcium sulfonate, and poor performance of lubricating grease, etc. question

Active Publication Date: 2010-12-29
CHINA PETROLEUM & CHEM CORP +1
View PDF11 Cites 32 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There will be some problems in preparing lubricating grease with existing Newtonian calcium sulfonate, for example: the conversion speed of Newtonian calcium sulfonate is slow or

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for preparing calcium sulfonate with high base number

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Add 150 milliliters of gasoline (industrial products) in a 500 milliliter three-neck flask with a motor stirrer and a condenser, add 23.7 grams of methanol, 6 grams of distilled water, 43 grams of 150SN neutral oil (produced by Sinopec Yanshan Petrochemical Company), twelve 4 grams of alkylphenol, 16.5 grams of calcium oxide, 21.6 grams of dodecylbenzene high boiler sulfonic acid, after adding, control the reaction temperature at 45-50°C, and after 30 minutes of neutralization reaction, introduce carbon dioxide at a ventilation rate of 0.062L Between / min, when the amount of feed reaches 85% of the theoretical value, add the remaining 25 grams of calcium oxide, continue to feed carbon dioxide to carry out the carbonation reaction, when the carbon dioxide reaches 85% of the theoretical value, stop ventilation, add 20wt% 5 grams of ammonium carbonate solution, react at 45-50°C for 30 minutes, then heat up to 120°C for dealcoholization and water. Add 100 milliliters of gas...

Embodiment 2

[0033] Add 150 milliliters of xylenes (chemically pure) in the 500 milliliters three-necked flask that has motor stirrer and condensing tube, 38 grams of 150SN neutral oil (produced by Sinopec Yanshan Petrochemical Company), 4 grams of lauryl salicylic acid, 8.2 grams of methanol, 20 grams of n-butanol, 18 grams of calcium hydroxide, C 20-28 Add 25 grams of alkylbenzenesulfonic acid, add 3 grams of ammonia water, control the reaction temperature at 45-50°C after adding, neutralize for 30 minutes, feed carbon dioxide, the ventilation rate is between 0.065L / min, and the feeding amount reaches the theoretical value When 90%, add remaining 32.5 grams of calcium hydroxide, continue to feed carbon dioxide and carry out carbonation reaction, when carbon dioxide reaches 90% of theoretical value, stop aeration, add 30wt% sodium carbonate and 8 grams of 20wt% sodium chloride solution , react at 45-50°C for 45min, then raise the temperature to 120°C for dealcoholization and water. Add 1...

Embodiment 3

[0042] This embodiment is used to illustrate the effect of the present invention.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a method for preparing calcium sulfonate with high base number. In the method, alkyl benzene sulfonic acid and/or petroleum sulfonic acid serve as raw materials, low molecular alcohol serves as accelerating agent, calcium oxide and/or calcium hydroxide serve as calcifying agent; firstly, neutralization reaction is carried out to generate calcium sulfonate; then carbonation reaction is carried out for twice, post-treating agent is added for reaction; finally, alcohol, water, solvent and solid residue are removed to obtain the calcium sulfonate with high base number. The product of the invention is especially suitable for preparing lubricating grease, can shorten conversion time of calcium sulfonate crystal form, improve high-temperature bproperty and anti-moisture performance of the lubricating grease and satisfy the demands of high-performance lubricating grease.

Description

technical field [0001] The invention relates to a preparation method of high alkali value calcium sulfonate. Background technique [0002] Composite calcium sulfonate-based grease is a new type of grease, which has excellent extreme pressure performance, anti-wear performance, water resistance, salt spray resistance and corrosion resistance, and has a high dropping point and good thermal stability. It is widely used Used in automobile, steel, mining, paper making and other industries. [0003] For a long time, complex calcium sulfonate-based greases have directly used Newtonian calcium sulfonate as raw material. The calcium carbonate in Newtonian calcium sulfonate is amorphous, while the calcium sulfonate in complex calcium sulfonate-based grease is non-Newtonian. Calcium sulfonate, in which calcium carbonate is calcite type, so in the preparation process of complex calcium sulfonate-based grease, it is necessary to convert Newtonian calcium sulfonate into non-Newtonian cal...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C07C309/30C07C309/62C07C303/32C10M135/10C10N30/08
Inventor 刘依农段庆华
Owner CHINA PETROLEUM & CHEM CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap