CN104672404A - Condition study on copolymerization and grafting of acrylamide and lignosulfonate - Google Patents
Condition study on copolymerization and grafting of acrylamide and lignosulfonate Download PDFInfo
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- CN104672404A CN104672404A CN201310648648.5A CN201310648648A CN104672404A CN 104672404 A CN104672404 A CN 104672404A CN 201310648648 A CN201310648648 A CN 201310648648A CN 104672404 A CN104672404 A CN 104672404A
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- acrylamide
- sulfonated lignin
- lignosulfonate
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Abstract
The invention relates to a condition study on the copolymerization and grafting of acrylamide and lignosulfonate, a raw material is lignosulfonate prepared by using pulping waste liquor produced after a sulphite process is performed in a paper mill, and the mass ratios of components in a system are as follows: 10-20 parts of lignosulfonate, 200-800 parts of water, 40-100 parts of acrylamide, and 1-10 parts of potassium persulfate. A specific operation method comprises the following steps of adding lignosulfonate and water in mass ratios above in a three-neck bottle; adding a sulfonic acid for acidizing the obtained mixture above, wherein the addition amount of the sulfonic acid is equal to the amount of the lignosulfonate and the water; adding an acrylamide monomer and potassium persulfate, heating to a special temperature, and stirring for reacting for a certain time; separating an obtained product by sedimentation by using acetone, cleaning the obtained object by using aether, and drying the obtained product, so that a product is obtained. A lignin acrylamide product synthesized according to the invention, after being further modified, can be applied to the treatment of sludge and wastewater such as dyes and the like.
Description
Technical field
The present invention is specifically related to the research of a kind of acrylamide and sulfonated lignin copolymerized grafting condition, belongs to chemical technology field.
Background of invention
Acrylamide can be used for preparing a kind of water-soluble polymer auxiliary agent, it has thickening, flocculates, helps the functions such as heavy and stable colloid, be widely used in the aspects such as oil recovery, mining industry, papermaking, coating, environmental protection and medical biotechnology, use as flocculation agent in ore dressing, coal and sewage disposal, there is irreplaceable effect.Polyacrylamide is as a kind of linear macromolecule polymkeric substance, and as flocculation agent, the object adding acrylamide in water treatment makes water-borne glue body particle form separable macrobead by congregation, thus water quality is purified.Xylogen is the macromolecular compound be formed by connecting by ehter bond and carbon-carbon double bond by alkyl oxide unit, it has the several functions bases such as methoxyl group, hydroxyl and carbonyl, and the xylogen also containing all types of undersaturated double bond all has typical polymolecularity and structure unhomogeneity.And xylogen is the natural polymers that occurring in nature content is only second to Mierocrystalline cellulose and chitin, whole world annual production can reach 6E14t, it is as filling and cohere material, can strengthen the interaction between plant cellulose, be also appoint the extensive composition extracting plant cellulose and must go out.Therefore, lignin derivative is separated generation already in a large number as the by product of paper industry.Directly utilize sulfonated lignin can not meet the industrial requirements of high stability, high dispersive type as dye dispersant, therefore must carry out the modification of certain condition to ligninsulfonate, so that better utilised.Find when early stage people are in research Mierocrystalline cellulose is with the graft reaction of methyl methacrylate vinyl cyanide that the graft reaction of xylogen is active.
The present invention relates to the research of a kind of acrylamide and sulfonated lignin copolymerized grafting condition, the sulfonated lignin adopting the pulping waste liquor of paper mill sulphite process obtained are raw material, synthesize xylogen acrylamide grafted copolymer, and synthesis condition is studied, determine the top condition of this system copolymerized grafting, the further modification of xylogen acrylamide product of synthesis can be used in the process of the waste water such as mud and dyestuff.
Summary of the invention
The present invention relates to the research of a kind of acrylamide and sulfonated lignin copolymerized grafting condition.
In order to achieve the above object, this invention takes following technical scheme:
The present invention relates to the research of a kind of acrylamide and sulfonated lignin copolymerized grafting condition, it is characterized in that: the sulfonated lignin that raw material adopts the pulping waste liquor of paper mill sulphite process obtained.
Other reagent that the present invention relates to are: sodium bisulfite, Potassium Persulphate, deionized water, ether, acetone and sulfuric acid etc.The mass ratio of each component in system: sulfonated lignin: (10-20 part): water: (200-800 part): acrylamide (40-100 part): Potassium Persulphate (1-10 part).
Concrete operation method: add sulfonated lignin and water by above-mentioned mass ratio in there-necked flask, after adding 1:1 sulfuric acid acidation, add acrylamide monomer and Potassium Persulphate, to be heated to after specified temp after stirring reaction certain hour, product acetone precipitation be separated, ether cleaning after drying can obtain product.
Embodiment
Below in conjunction with embodiment, the present invention is described further, but is not limited only to this.
Embodiment 1:
Raw material and proportioning:
Sulfonated lignin: 10 parts: water: 200 parts: acrylamide 40 parts: Potassium Persulphate 5 parts.
Preparation method:
Concrete operation method: add sulfonated lignin and water by above-mentioned mass ratio in there-necked flask, after adding 1:1 sulfuric acid acidation, add acrylamide monomer and Potassium Persulphate, after being heated to 40 DEG C after stirring reaction 4h, product acetone precipitation be separated, ether cleaning after drying can obtain product.
Embodiment 2:
Raw material and proportioning:
Sulfonated lignin: 15 parts: water: 300 parts: acrylamide 80 parts: Potassium Persulphate 8 parts.
Concrete preparation method is with embodiment 1.
Embodiment 3:
Sulfonated lignin: 20 parts: water: 600 parts: acrylamide 60 parts: Potassium Persulphate 10 parts.
Concrete preparation method is with embodiment 1.
Above-described embodiment is only and clearly the invention example is described, and the restriction not to the invention embodiment.For those of ordinary skill in the field, other multi-form change and variations can also be made on the basis of the above description.Here exhaustive without the need to also giving all embodiments.
Claims (5)
1. the present invention relates to the research of a kind of acrylamide and sulfonated lignin copolymerized grafting condition, it is characterized in that: the sulfonated lignin that raw material adopts the pulping waste liquor of paper mill sulphite process obtained.
2., as the research of above-mentioned alkene acid amides according to claim 1 and sulfonated lignin copolymerized grafting condition, other reagent selected are: sodium bisulfite, Potassium Persulphate, deionized water, ether, acetone and sulfuric acid etc.
3. as the research of above-mentioned alkene acid amides according to claim 1 and sulfonated lignin copolymerized grafting condition, the mass ratio of each component in system: sulfonated lignin: (10-20 part): water: (200-800 part): acrylamide (40-100 part): Potassium Persulphate (1-10 part).
4., as the research of above-mentioned alkene acid amides according to claim 1 and sulfonated lignin copolymerized grafting condition, selected temperature of reaction is 40 DEG C.
5., as the research of above-mentioned alkene acid amides according to claim 1 and sulfonated lignin copolymerized grafting condition, the selected reaction times is 4h.Preferred concrete operation method: add sulfonated lignin and water by above-mentioned mass ratio in there-necked flask, after adding 1:1 sulfuric acid acidation, add acrylamide monomer and Potassium Persulphate, to be heated to after specified temp after stirring reaction certain hour, product acetone precipitation be separated, ether cleaning after drying can obtain product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310648648.5A CN104672404A (en) | 2013-12-03 | 2013-12-03 | Condition study on copolymerization and grafting of acrylamide and lignosulfonate |
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| CN201310648648.5A CN104672404A (en) | 2013-12-03 | 2013-12-03 | Condition study on copolymerization and grafting of acrylamide and lignosulfonate |
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| CN104672404A true CN104672404A (en) | 2015-06-03 |
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| CN201310648648.5A Pending CN104672404A (en) | 2013-12-03 | 2013-12-03 | Condition study on copolymerization and grafting of acrylamide and lignosulfonate |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108164174A (en) * | 2017-12-04 | 2018-06-15 | 杨忠华 | A kind of preparation method of cement grinding aid |
| CN109280174A (en) * | 2018-08-31 | 2019-01-29 | 华南理工大学 | A kind of hyperbranched lignin grafted cation polyacrylamide flocculant and preparation method thereof |
| CN110229289A (en) * | 2019-07-16 | 2019-09-13 | 上海纳米技术及应用国家工程研究中心有限公司 | Preparation method of modified lignin resin base amphoteric flocculating agent and products thereof and application |
-
2013
- 2013-12-03 CN CN201310648648.5A patent/CN104672404A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108164174A (en) * | 2017-12-04 | 2018-06-15 | 杨忠华 | A kind of preparation method of cement grinding aid |
| CN109280174A (en) * | 2018-08-31 | 2019-01-29 | 华南理工大学 | A kind of hyperbranched lignin grafted cation polyacrylamide flocculant and preparation method thereof |
| CN109280174B (en) * | 2018-08-31 | 2020-09-22 | 华南理工大学 | Hyperbranched lignin grafted cationic polyacrylamide flocculant and preparation method thereof |
| CN110229289A (en) * | 2019-07-16 | 2019-09-13 | 上海纳米技术及应用国家工程研究中心有限公司 | Preparation method of modified lignin resin base amphoteric flocculating agent and products thereof and application |
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Application publication date: 20150603 |