Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Liquid cement grinding aid and preparation method thereof

A cement grinding aid and liquid technology, applied in the field of cement grinding aids in the field of cement manufacturing, can solve problems such as rising prices and shortages of cement grinding aids

Inactive Publication Date: 2009-03-18
NANJING YONGNENG MATERIALS
View PDF0 Cites 16 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are some defects in the formula composition of these liquid grinding aids: due to the increasing shortage of world oil resources, the prices of triethanolamine and ethylene glycol, the main raw materials of cement grinding aids, are also constantly rising. Grinding aid products are an urgent problem that the domestic grinding aid industry needs to solve

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

Embodiment 1

[0010] Embodiment 1: a kind of liquid cement grinding aid, each component ratio is as follows (mass percentage):

[0011] Mass percentage concentration is 20% of acrylic acid-maleic anhydride copolymer sodium salt aqueous solution of 50%

[0012] 30% of sodium salt superplasticizer of sulfanilic acid with concentration of 35% by mass

[0013] 20% of sugarcane bagasse liquid containing 70% of dry matter mass percentage

[0014] Desugared Sodium Lignosulfonate 5%

[0015] Sodium tripolyphosphate 1%

[0016] Sodium carbonate 1%

[0017] The balance is water.

[0018] The preparation process of this liquid cement grinding aid is as follows:

[0019] Inject hot water at 30-40°C into the reactor, add desugared sodium lignosulfonate, sodium tripolyphosphate, and sodium carbonate and stir for 15 minutes, then add sugarcane waste liquid and stir for 10 minutes; the materials in the reactor Filter with a 150-mesh screen; add acrylic acid-maleic anhydride copolymer sodium salt solu...

Embodiment 2

[0020] Embodiment 2: a kind of liquid cement grinding aid, each component ratio is as follows (mass percentage):

[0021] 40% aqueous solution of acrylic acid-maleic anhydride copolymer sodium salt with a concentration of 50% by mass

[0022] The sodium salt superplasticizer of sulfanilic acid with a mass percentage concentration of 35% 20%,

[0023] Sugar cane bagasse liquid containing 70% dry matter mass percentage 10%

[0024] Desugared Sodium Lignosulfonate 15%

[0025] Sodium tripolyphosphate 5%

[0026] Sodium Carbonate 5%

[0027] The balance is water.

[0028] Its preparation process is with embodiment 1.

Embodiment 3

[0029] Embodiment 3: a kind of liquid cement grinding aid, each component ratio is as follows (mass percentage):

[0030] Mass percent concentration is 30% of acrylic acid-maleic anhydride copolymer sodium salt solution with a concentration of 50%

[0031] The sodium salt superplasticizer of sulfanilic acid with a mass percentage concentration of 35% 10%

[0032] Sugar cane bagasse liquid containing 70% dry matter mass percentage 15%

[0033] Desugared Sodium Lignosulfonate 10%

[0034] Sodium tripolyphosphate 3%

[0035] Sodium Carbonate 2%

[0036] Zinc Sulfate 5%

[0037] Sodium Gluconate 1%

[0038] The balance is water.

[0039] The preparation method of this liquid cement grinding aid is as follows:

[0040] Inject 30-40°C hot water into the reaction kettle, add desugared sodium lignosulfonate, sodium tripolyphosphate, and sodium carbonate and stir for 15 minutes, then add sugarcane waste liquid and stir for 10 minutes; then add zinc sulfate and Sodium gluconate ...

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
Viscosityaaaaaaaaaa
Proportionaaaaaaaaaa
Login to View More

Abstract

The invention discloses a liquid cement grinding aid and a method for preparing the same, wherein the cement grinding aid comprises the following components in weight percentage: 20 to 40 percent of acrylic acid-maleic anhydride copolymer sodium salt, 20 to 30 percent of aminobenzene fulfonic acid sodium salt water reducing agent, 10 to 20 percent of scum waste liquid of sugar cane, 5 to 15 percent of desugar sodium lignosulfonate, 1 to 5 percent of sodium tripolyhosphate, 1 to 5 percent of sodium carbonate and the balance of water. The technical proposal obviously improves the grinding efficiency of a grinding machine, properly improves the early strength of cement, does not require expensive triethanolamine and ethylene glycol and allows for the use of readily available and cheap raw materials. A further optimized proposal of the invention is as follows: based on the former technical proposal, 1 to 5 percent of zinc sulphate and 1 to 5 percent of sodium gluconate are added, which can improve the late strength of cement. Meanwhile, the invention also discloses a method for preparing the liquid cement grinding aid.

Description

technical field [0001] The invention relates to a cement grinding aid in the cement manufacturing field, in particular to a liquid cement grinding aid and a preparation method thereof. Background technique [0002] At present, domestic cement grinding aid products have two forms: powder and liquid. Because the liquid product is easy to use, it can be added smoothly only by adding a storage tank and a liquid metering pump, and does not require complicated and heavy equipment, so it has gradually been widely used. The formula of liquid cement grinding aid can be basically fixed, and it does not need to be changed frequently in order to adapt to the changes of cement and seasons like concrete admixture products. The formula composition of existing liquid cement grinding aid is mainly triethanolamine, ethylene glycol Alcohol, acetate and other single or compound products. Because these products have less dosage, convenient liquid metering and adding, improve the grinding effic...

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): C04B24/26C04B24/20C04B24/18C04B22/16C04B22/10
CPCC04B2103/52C04B7/52C04B40/0039Y02W30/91C04B14/26C04B18/24C04B22/142C04B24/10C04B24/18C04B24/243C04B24/2641C04B28/02C04B2103/302C04B24/16
Inventor 张伟袁玉乔
Owner NANJING YONGNENG MATERIALS
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com