CN104418976A - Preparation method of chelating dispersant - Google Patents
Preparation method of chelating dispersant Download PDFInfo
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- CN104418976A CN104418976A CN201310416219.5A CN201310416219A CN104418976A CN 104418976 A CN104418976 A CN 104418976A CN 201310416219 A CN201310416219 A CN 201310416219A CN 104418976 A CN104418976 A CN 104418976A
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Abstract
The invention discloses a preparation method of a chelating dispersant. The preparation method of the chelating dispersant comprises the following steps: adding 100 parts of sodium sulfite solution into a four-necked flask to serve as bottom water; mixing maleic acid, acrylic acid and acrylamide at a ratio of 1:1:1 to prepare a solution 1; mixing hydroxyethyl acrylate and deionized water at a ratio of 1:50 to prepare a solution 2; dropwise adding 50 parts of solution 1 and 50 parts of solution 2 into the four-necked flask slowly under the initiation of 30 parts of sodium persulfate solution by using an atmospheric-pressure dropping funnel; finishing dropwise adding 1/3 of solution 1, 1/3 of solution 2 and 1/3 of sodium persulfate solution in 0.5 hour at a temperature of 75 DEG C; preserving heat for 0.5 hour, finishing dropwise adding the remaining 2/3 of solution 1 and the remaining 2/3 of solution 2 in 1 hour, and finishing dropwise adding the remaining 2/3 of sodium persulfate solution in 1.5 hours; preserving heat for 2 hours at a temperature of 82 DEG C; preserving heat for 0.5 hour at a temperature of 90 DEG C; neutralizing a product of reaction until the pH value thereof is up to 7-8; and discharging to obtain the chelating dispersant. The chelating dispersant prepared by adopting the preparation method has a strong chelating capability and is environment-friendly.
Description
Technical field
The present invention relates to a kind of preparation method of textile auxiliary agent, particularly a kind of preparation method of novel environment-friendly chelated dispersants.
Background technology
Chelated dispersants integrates the advantage of sequestrant and dispersion agent, has chelating ability and dispersing property, both can chelated metal ions, and flocculate group or drop of solid can be made again to be separated into tiny to be particle-stabilisedly suspended in liquid.Along with the development of textile printing and dyeing industry, the processing quality of textiles improves constantly, and the application of chelated dispersants in dyeing is more and more extensive.
The dyeing and finishing processing of textiles is generally all carried out in the medium taking water as solution, Ca in water quality
2+, Fe
3+can have a huge impact quality product Deng metal ion.When oxygen bleaching, iron ion etc. can accelerate the decomposition of hydrogen peroxide, and cause local excessive oxidation in textile bleaching processes, powerful decline, even produces broken hole; When dyeing, Ca
2+, Mg
2+easily cause dyestuff to condense, produce color dot; When soaping, can calcium soap be generated, being deposited on fabric, make the feel of textiles hardening.
Add the precipitation that chelated dispersants can avoid hydrolised dye when soaping, thoroughly remove printing product surface loose colour, improve soaping fastness, stain fastness and dry fastness to wet rubbing.Stamp and Yarn-dyed fabric add chelated dispersants and can prevent white background from staiing when soaping, make white background whiter, color and luster is more bright-coloured, and can avoid deflector roll and steam box fouling, and life-time service can also prevent drying cylinder surface scale.In scavenging solution, add chelated dispersants after destarch, base fabric can be made pure whiter, destarch is more complete, and equipment also can be made clean; Chelated dispersants is added in the fiber scouring process of cellulose family, metal ion can be avoided to form water soluble complex, the metal ion containing and adhere to can be removed in fiber more up hill and dale, calcium, magnesium ion simultaneously in energy chelating, dispersion kiering liquid, be beneficial to pectin to remove, prevent insoluble calcium, magnesium salts is deposited on fabric, thus improve the wettability of kiering textiles, contribute to improving feel and whiteness.
For this reason, general factory adds man-hour carrying out dyeing and finishing, all will add the metal ion that the appropriate intercalating agent of people comes in huge legendary turtle Heshui solution, to improve the processing quality of textiles.
Summary of the invention
For solving the problems of the technologies described above, the invention provides a kind of preparation method of chelated dispersants, to reach the object of the without phosphorus chelated dispersants that can provide a kind of environment-friendly type.
For achieving the above object, technical scheme of the present invention is as follows:
A preparation method for chelated dispersants, comprises the steps:
The sodium sulfite solution of 100 parts is inserted in four-hole boiling flask as end water, again by toxilic acid, vinylformic acid, acrylamide is joined for solution one according to the ratio mixing of 1:1:1, Hydroxyethyl acrylate and deionized water are joined for solution two with the ratio of 1:50, slowly instill in four-hole boiling flask with the solution two of constant pressure addition funnel by the solution one of 50 parts and 50 parts under the initiation of Sodium Persulfate solution, the consumption of Sodium Persulfate solution is 30 parts, when 75 DEG C, 0.5h instillation 1/3 and solution one, solution two and Sodium Persulfate solution, insulation 0.5h, 1h drips off remaining 2/3 again, Sodium Persulfate solution remaining 2/3 drips off with 1.5h, 82 DEG C of insulation 2h, 90 DEG C of insulation 0.5h, being neutralized to pH is 7 ~ 8, discharging, obtained chelated dispersants.
Pass through technique scheme, the preparation method of chelated dispersants provided by the invention adopts toxilic acid, vinylformic acid, acrylamide and Hydroxyethyl acrylate to be raw material, be that initiator carries out copolyreaction with Sodium Persulfate, synthesized a kind of novel environment-friendly type chelated dispersants, this chelated dispersants is to Ca
2+, Fe
3+good Deng metal biosorption ability.
Embodiment
Be clearly and completely described to the technical scheme in the embodiment of the present invention below.
The invention provides a kind of preparation method of chelated dispersants, this kind of chelated dispersants environmental protection, environmentally safe, strong to metal biosorption ability.
The preparation method of this chelated dispersants, comprises following preparation method:
The sodium sulfite solution of 100 parts is inserted in four-hole boiling flask as end water, again by toxilic acid, vinylformic acid, acrylamide is joined for solution one according to the ratio mixing of 1:1:1, Hydroxyethyl acrylate and deionized water are joined for solution two with the ratio of 1:50, slowly instill in four-hole boiling flask with the solution two of constant pressure addition funnel by the solution one of 50 parts and 50 parts under the initiation of Sodium Persulfate solution, the consumption of Sodium Persulfate solution is 30 parts, when 75 DEG C, 0.5h instillation 1/3 and solution one, solution two and Sodium Persulfate solution, insulation 0.5h, 1h drips off remaining 2/3 again, Sodium Persulfate solution remaining 2/3 drips off with 1.5h, 82 DEG C of insulation 2h, 90 DEG C of insulation 0.5h, being neutralized to pH is 7 ~ 8, discharging, obtained chelated dispersants.
The preparation method of chelated dispersants provided by the invention adopts toxilic acid, vinylformic acid, acrylamide and Hydroxyethyl acrylate to be raw material, be that initiator carries out copolyreaction with Sodium Persulfate, synthesized a kind of novel environment-friendly type chelated dispersants, this chelated dispersants is to Ca
2+, Fe
3+good Deng metal biosorption ability.
To Ca
2+, Fe
3+chelating ability is tested:
Take about 5g sequestrant, be settled in 500ml volumetric flask by water dissolution, draw 10ml, add 5ml ammonia-ammonium chloride buffer solution adjust ph and be about 10, add 1ml sodium oxalate solution again, be titrated to solution with calcium acetate standardized solution to present muddiness and be considered as titration end point, chelating ability calculation formula is as follows:
X=(c×V×100.1)／(m×100／500)
In formula: c is the concentration of calcium acetate standardized solution, unit mol/L;
V is the volume that titration consumes calcium acetate standardized solution, units/ml;
M is the quality of sequestrant, unit g;
100.1 is CaCO
3molar mass.
Through test, this chelated dispersants is to Ca
2+sequestering power be 343, to Fe
3+sequestering power be 412.Therefore, chelated dispersants sequestering power obtained by this method is strong, is highly suitable for textile printing and dyeing processing.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (1)
1. the preparation method of a chelated dispersants, it is characterized in that, the sodium sulfite solution of 100 parts is comprised the steps: to insert in four-hole boiling flask as end water, again by toxilic acid, vinylformic acid, acrylamide is joined for solution one according to the ratio mixing of 1:1:1, Hydroxyethyl acrylate and deionized water are joined for solution two with the ratio of 1:50, slowly instill in four-hole boiling flask with the solution two of constant pressure addition funnel by the solution one of 50 parts and 50 parts under the initiation of Sodium Persulfate solution, the consumption of Sodium Persulfate solution is 30 parts, when 75 DEG C, 0.5h instillation 1/3 and solution one, solution two and Sodium Persulfate solution, insulation 0.5h, 1h drips off remaining 2/3 again, Sodium Persulfate solution remaining 2/3 drips off with 1.5h, 82 DEG C of insulation 2h, 90 DEG C of insulation 0.5h, being neutralized to pH is 7 ~ 8, discharging, obtained chelated dispersants.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310416219.5A CN104418976A (en) | 2013-09-07 | 2013-09-07 | Preparation method of chelating dispersant |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310416219.5A CN104418976A (en) | 2013-09-07 | 2013-09-07 | Preparation method of chelating dispersant |
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|---|---|
| CN104418976A true CN104418976A (en) | 2015-03-18 |
Family
ID=52969161
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| CN201310416219.5A Pending CN104418976A (en) | 2013-09-07 | 2013-09-07 | Preparation method of chelating dispersant |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105064087A (en) * | 2015-07-07 | 2015-11-18 | 宜兴市华联化工有限公司 | Efficient and environment-friendly chelating dispersant |
| CN106283635A (en) * | 2016-08-22 | 2017-01-04 | 绍兴市柯桥区科创高新技术开发中心 | A kind of cotton scouring agent |
| CN106283753A (en) * | 2016-08-22 | 2017-01-04 | 绍兴市柯桥区科创高新技术开发中心 | Alkali Weight Reduction Treatment of Polyester one-pass bath method for dyeing technique |
| CN106381693A (en) * | 2016-08-22 | 2017-02-08 | 绍兴市柯桥区科创高新技术开发中心 | Polyester-cotton blended fabric one-bath pretreatment process |
| CN107151927A (en) * | 2017-05-22 | 2017-09-12 | 苏州凯邦生物技术有限公司 | A kind of pigment dyeing polyacrylic dispersant and preparation method thereof |
| CN108264325A (en) * | 2018-03-12 | 2018-07-10 | 雅安市弘利展化工有限公司 | A kind of concrete dense curing agent and preparation method thereof |
| CN111139669A (en) * | 2020-01-09 | 2020-05-12 | 嘉兴华晟助剂工业有限公司 | Preparation and application of novel pH value regulator for dyeing |
-
2013
- 2013-09-07 CN CN201310416219.5A patent/CN104418976A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105064087A (en) * | 2015-07-07 | 2015-11-18 | 宜兴市华联化工有限公司 | Efficient and environment-friendly chelating dispersant |
| CN106283635A (en) * | 2016-08-22 | 2017-01-04 | 绍兴市柯桥区科创高新技术开发中心 | A kind of cotton scouring agent |
| CN106283753A (en) * | 2016-08-22 | 2017-01-04 | 绍兴市柯桥区科创高新技术开发中心 | Alkali Weight Reduction Treatment of Polyester one-pass bath method for dyeing technique |
| CN106381693A (en) * | 2016-08-22 | 2017-02-08 | 绍兴市柯桥区科创高新技术开发中心 | Polyester-cotton blended fabric one-bath pretreatment process |
| CN106283635B (en) * | 2016-08-22 | 2018-08-31 | 绍兴市柯桥区科创高新技术开发中心 | A kind of cotton scouring agent |
| CN107151927A (en) * | 2017-05-22 | 2017-09-12 | 苏州凯邦生物技术有限公司 | A kind of pigment dyeing polyacrylic dispersant and preparation method thereof |
| CN108264325A (en) * | 2018-03-12 | 2018-07-10 | 雅安市弘利展化工有限公司 | A kind of concrete dense curing agent and preparation method thereof |
| CN111139669A (en) * | 2020-01-09 | 2020-05-12 | 嘉兴华晟助剂工业有限公司 | Preparation and application of novel pH value regulator for dyeing |
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Application publication date: 20150318 |