Supercharge Your Innovation With Domain-Expert AI Agents!

Analysis method for determining content of monosulfonate and disulfonate in sulfonate sample

A monosulfonate and disulfonate technology, which is applied in the direction of measuring devices, analysis materials, material separation, etc., can solve the problem of the inability to quickly and accurately detect the content of monosulfonate and polysulfonate in sulfonate samples and other problems, to achieve the effect of comprehensive information, fast analysis speed and high purity

Pending Publication Date: 2021-04-30
PETROCHINA CO LTD
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The object of the present invention is to provide a kind of analysis method of monosulfonate and double sulfonate content in the determination sulfonate sample, to solve the problem that the existing analysis method cannot detect monosulfonate in the sulfonate sample quickly and accurately and the content of polysulfonates

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
  • Analysis method for determining content of monosulfonate and disulfonate in sulfonate sample
  • Analysis method for determining content of monosulfonate and disulfonate in sulfonate sample
  • Analysis method for determining content of monosulfonate and disulfonate in sulfonate sample

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0086] This embodiment provides a kind of analytical method of monosulfonate and disulfonate content in the determination sulfonate sample, comprising:

[0087] S1. Separation and purification of sulfonate effective substance components, comprising the following steps:

[0088] (1) Accurately weigh 10 g of sulfonate sample A into a 250 mL beaker, bake in an oven at 110°C until constant weight, and the lost amount is light components and water.

[0089] (2) After fully dissolving the constant weight part with 50 mL of hot absolute ethanol (~60°C), centrifuge at a rate of 8000 rpm for 10 min to collect the supernatant; dissolve the insoluble part with hot absolute ethanol and centrifuge. Repeat 4 times, each time is 50mL; combine the supernatant part. The insoluble part is baked in an oven at 110°C to constant weight, which is the inorganic salt and impurity components.

[0090] (3) Remove the solvent from the absolute ethanol part of the supernatant in step (2), add 50mL of i...

Embodiment 2

[0102]It should be noted that the sulfonate sample B in this example and the sulfonate sample A in Example 1 belong to different batches of petroleum sulfonate samples.

[0103] This embodiment provides a kind of analytical method of monosulfonate and disulfonate content in the determination sulfonate sample, comprising:

[0104] S1. Separation and purification of sulfonate effective substance components, comprising the following steps:

[0105] (1) Accurately weigh 10g of sulfonate sample B into a 250mL beaker, bake in an oven at 110°C until constant weight, and the lost amount is light components and water.

[0106] (2) After fully dissolving the constant weight part with 50 mL of hot absolute ethanol (~60°C), centrifuge at a rate of 8000 rpm for 10 min to collect the supernatant; dissolve the insoluble part with hot absolute ethanol and centrifuge. Repeat 4 times, each time is 50mL; combine the supernatant part. The insoluble part is baked in an oven at 110°C to constant ...

Embodiment 3

[0119] It should be noted that the sulfonate sample C in this example, the sulfonate sample B in Example 2, and the sulfonate sample A in Example 1 belong to different batches of petroleum sulfonate samples.

[0120] This embodiment provides a kind of analytical method of monosulfonate and disulfonate content in the determination sulfonate sample, comprising:

[0121] S1. Separation and purification of sulfonate effective substance components, comprising the following steps:

[0122] (1) Accurately weigh 10 g of sulfonate sample C into a 250 mL beaker, bake in an oven at 110°C until constant weight, and the lost amount is light components and water.

[0123] (2) After fully dissolving the constant weight part with 50 mL of hot absolute ethanol (~60°C), centrifuge at a rate of 8000 rpm for 10 min to collect the supernatant; dissolve the insoluble part with hot absolute ethanol and centrifuge. Repeat 4 times, each time is 50mL; combine the supernatant part. The insoluble part ...

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

PropertyMeasurementUnit
wavelengthaaaaaaaaaa
Login to View More

Abstract

The invention provides an analysis method for determining the contents of monosulfonate and disulfonate in a sulfonate sample, which comprises the following steps: separating and purifying the sulfonate sample to obtain sulfonate effective substance components, carrying out liquid chromatography analysis on the effective substance components, and determining the chromatographic retention time of the monosulfonate and the disulfonate; using a preparative liquid chromatography technology, methanol and water being used as mobile phases, and performing separation and preparation of monosulfonate and disulfonate components in a gradient elution mode; and carrying out liquid chromatographic analysis on the separated and prepared monosulfonate and disulfonate components, and calculating the purity result according to the peak area of chromatographic peaks. Compared with the existing industrial standard that only the effective substance content in the petroleum sulfonate is analyzed and tested, the result information amount obtained by adopting the analysis method provided by the invention is more comprehensive, so that more reference bases and comparison data are provided for accurately and efficiently evaluating the quality of the sulfonate sample.

Description

technical field [0001] The invention belongs to the field of oilfield chemical flooding surfactants, in particular to an analysis method for determining the content of monosulfonate and disulfonate in a sulfonate sample. Background technique [0002] Surfactant molecules are composed of two parts: oleophilic group and oleophobic group. They have good surface characteristics, are easy to enrich at the liquid-liquid interface, and reduce the interfacial tension of the solution. Therefore, they have been widely used in the field of oilfield chemical flooding. Petroleum sulfonate is one of the most widely used anionic surfactants in oilfield chemical flooding. It has the advantages of less adsorption, easy availability of raw materials, and wide application range. Changqing sulfonate samples have been widely used in Changqing Oilfield and the effect is remarkable. For sulfonate samples, the content of effective components in the sample is often used as an index to evaluate, that...

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
Patent Type & Authority Applications(China)
IPC IPC(8): G01N30/02G01N30/06G01N30/14G01N30/34G01N30/60G01N30/74
CPCG01N30/02G01N30/06G01N30/14G01N30/34G01N30/6052G01N30/74G01N2030/062
Inventor 张永强徐飞艳王永宏王帅李文宏苗林郭勇冯春艳张晓斌向中远上官阳南杨文军陈振波张宏强
Owner PETROCHINA CO LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com