Lignosulfonate for drilling fluid and lignosulfonate preparation method

A technology of lignosulfonate and sodium lignosulfonate, applied in chemical instruments and methods, drilling compositions and other directions, can solve problems such as difficulty in application, environmental pollution, residual chromium ions, etc., and achieve good mud performance Effect

Inactive Publication Date: 2015-09-09
JINAN SHENGQUAN GROUP SHARE HLDG
View PDF5 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Lignosulfonate for drilling fluid is a commonly used thinner for drilling mud. The traditional preparation method is to prepare by mixing papermaking waste liquid calcium lignosulfonate with ferrous sulfate, sulfuric acid and sodium dichromate; howev

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

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0041] Example 1

[0042] 100g corn cobs are crushed, 8g sulfurous acid, 1.4g phosphoric acid, 0.5g sodium sulfite are added to hydrolyze at 140℃, 05Mpa, after the hydrolysis is completed, solid-liquid separation, sugar liquid and xylose dregs are obtained; combined sugar liquid, xylose dregs are added four After washing at 100°C twice, and separating the solid and liquid, sugar liquor and xylose residue are obtained; the sugar liquor is combined, and the xylose residue is washed with water at twice 100°C to obtain xylose residue and sugar liquor after solid-liquid separation.

[0043] The obtained sugar liquid was concentrated into a solution with a solid content of 45% by weight, and then settled at 50°C for 48h, and sodium hydroxide was added at 55°C for neutralization reaction to obtain a solution with a pH value of 5.

[0044] The obtained solution with a pH of 5 is subjected to plate and frame filtration twice, and the filtration temperature is 50°C. The pre-coating agent for p...

Example Embodiment

[0051] Example 2

[0052] 100g corncobs are crushed, add 6.5g sulfurous acid, 1.5g oxalic acid, 0.55g sodium sulfite and hydrolyze at 160℃, 0.5Mpa, after the hydrolysis is completed, solid-liquid separation, sugar solution and xylose residue are obtained; combined sugar solution, xylose residue Add four times the 100°C water to wash, and after solid-liquid separation, sugar solution and xylose residue are obtained; combine the sugar solution, add twice the 100°C water to wash the xylose residue, and obtain xylose residue and sugar solution after solid-liquid separation.

[0053] The obtained sugar liquid was concentrated into a solution with a solid content of 45% by weight, and then settled at 50°C for 48h, and sodium hydroxide was added at 55°C for neutralization reaction to obtain a solution with a pH value of 5.

[0054] The obtained solution with a pH of 5 is subjected to plate and frame filtration twice, and the filtration temperature is 50°C. The pre-coating agent for plate an...

Example Embodiment

[0061] Example 3

[0062] 300g corn cob is crushed, 10g sulfurous acid, 5g sulfuric acid, 1.3g sodium sulfite are added to hydrolyze at 150℃, 0.6Mpa, after the hydrolysis is completed, solid-liquid separation, sugar liquid and xylose residue are obtained; combined sugar liquid, xylose residue is added to four After washing at 100°C twice and separating the solid and liquid, sugar liquor and xylose residue are obtained; the sugar liquor is combined, and the xylose residue is washed with water at twice 100°C to obtain xylose residue and sugar liquor after solid-liquid separation.

[0063] The obtained sugar liquid was concentrated into a solution with a solid content of 45% by weight, and then settled at 50°C for 48h, and sodium hydroxide was added at 55°C for neutralization reaction, to obtain a solution with a pH value of 4.

[0064] The obtained solution with a pH of 5 is subjected to plate and frame filtration twice, and the filtration temperature is 50°C. The pre-coating agent for...

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
Apparent viscosityaaaaaaaaaa
Apparent viscosityaaaaaaaaaa
Apparent viscosityaaaaaaaaaa
Login to view more

Abstract

The invention provides lignosulfonate for drilling fluid and a lignosulfonate preparation method. The lignosulfonate is obtained by mixed reaction of a complexing agent and sodium lignin sulfonate prepared from liquid glucose. By selection of special sodium salt of lignosulfonate and taking of the sodium lignin sulfonate prepared from liquid glucose as a starting material, the prepared lignosulfonate for drilling fluid has an excellent mud property no matter at the normal temperature or the high temperature, and generation of harmful waste residues in a preparation process is avoided.

Description

technical field [0001] The invention relates to a lignosulfonate for drilling fluid and a preparation method thereof. Background technique [0002] Lignosulfonate for drilling fluid is a commonly used thinner for drilling mud. The traditional preparation method is to prepare by mixing papermaking waste liquid calcium lignosulfonate with ferrous sulfate, sulfuric acid and sodium dichromate; however, The method for preparing lignosulfonate for drilling fluid will generate calcium sulfate waste residue and a certain amount of chromium ions will remain in the waste residue. Such residue is difficult to be used and will cause environmental pollution. Therefore, seeking a lignosulfonate for drilling fluid with good mud performance under high temperature conditions and no harmful waste residues in the preparation process is a technical problem that needs to be solved at present. Contents of the invention [0003] In view of this, the technical problem to be solved by the present...

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): C08H7/00C09K8/035
Inventor 唐一林江成真高绍丰宁辉张茜刘洁
Owner JINAN SHENGQUAN GROUP SHARE HLDG
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