CN102002889A - Special anion garbage capturing agent for paper making - Google Patents
Special anion garbage capturing agent for paper making Download PDFInfo
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- CN102002889A CN102002889A CN 201010524121 CN201010524121A CN102002889A CN 102002889 A CN102002889 A CN 102002889A CN 201010524121 CN201010524121 CN 201010524121 CN 201010524121 A CN201010524121 A CN 201010524121A CN 102002889 A CN102002889 A CN 102002889A
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Abstract
The invention relates to a special anion garbage capturing agent for paper making. A preparation method for the capturing agent comprises the following steps of: carrying out hot melting on midbody polyacrylamide in an aqueous solution; completely dissolving the midbody in the aqueous solution at the temperature of 95 DEG C for one hour; adding 0.1-1 part of ammonium dihydrogen phosphate and 1 part of polyacrylamide in parts by weight at the temperature of 70 DEG C; sufficiently dissolving for one hour and then adding 0.6-1.2 parts of polymine; continuing sufficiently fusing for one hour; modifying 1 part of polyacrylamide-polymine mixture through cross-linking reaction; and then adding 0.002 part of glutaraldehyde to continue reacting for 0.5 hour to obtain the capturing agent. The invention has the advantages that the novel anion garbage capturing agent of a high molecular weight high-positive charge density modified polyacrylamide-polymine crosslinking body has the performance characteristics that the capturing agent can be used under the conditions that the wet end chemistry becomes very complicated, the anion garbage accumulates and the density becomes higher and higher in the environment that the water closed cycle degree of a paper machine is improved, and the interference of colloid dissolved matter can be reduced or eliminated.
Description
Technical field
The invention belongs to papermaking chemical, relate in particular to the special-purpose anionic trash agent for capturing of a kind of papermaking.
Background technology
Along with the progressively deeply raising of low-carbon economy environmental consciousness, become the of paramount importance green economy of solution sources of paper pulp at present, and be to solve the deficient best efficient resource of paper pulp for the enforcement of waste paper recycling.After the closed circulation of plain boiled water is implemented, reached and reduced the consumption that clear water is held energy and fiber, saved great amount of water resources, heat energy and raw material.Reach the zero-emission of sewage simultaneously, solved big public hazards of paper waste contaminated environment.Because sealing water degree improves constantly, organic and inorganic substances cycles of concentration collection increases in the system, makes in the plain boiled water enrichments such as suspended solids total organic matter electrical conductivity.Impel wet end of machine under these factors vary, the capability operation of page is not normal etc., and the aspect is endangered.In the closed cycle system, typical rubbish agent for capturing is a macromolecule, this base polymer of positive electricity polymer.It mainly relies on macromolecule and positive electricity to be adsorbed on filler, half fiber and fiber fines.Because closed circulation water-soluble colloidal substance (DCS) is productive set constantly, caused influencing the balance of electrical conductivity, the anion in the water system (DCS) and CATION absorption and neutralization have reduced the effect of anionic trash agent for capturing, have in addition lost efficacy.Pollutant will have a strong impact on whiteness and the intensity and the indexs such as optical property and fracture length of page in the plain boiled water on page characteristic.All kinds of impurity of water quality variation progressively concentrate after the water circulation of sealing on the paper machine operation, pipe-line equipment in the system easily produces obstruction, the suspension solid content is easy to generate sparge pipe, web part of paper machine and felt stop up, and can be deposited on slewing rollers dissolved solid and the metallic salt that flows case labial lamina and wet end, promptly can produce precipitation and fouling, also can produce corrosion and influence applying glue.The deposition of metal ion can produce efficient corrosiveness to production equipment, and normal operation is produced in influence.
Summary of the invention
The present invention is in order to overcome deficiency of the prior art, provide a kind of papermaking special-purpose anionic trash agent for capturing, can under wet end chemistry under the environment that the water seal circulation degree of paper machine improves becomes the more and more higher situation of very complicated anionic trash accumulation and concentration, use, can reduce or eliminate the interference of colloid dissolved matter.
The present invention for achieving the above object, be achieved through the following technical solutions, the special-purpose anionic trash agent for capturing of a kind of papermaking is characterized in that: with polyacrylamide, polymine, charge adjusting agent and crosslinking agent dissolve emulsification, and cross-linking reaction generates the crosslinked body polymer of polyacrylamide-polymine, its characteristicness polyacrylamide-polymine cross-linked polymer compound molecular weight is big, positive electricity density high stability is good, has the network structure characteristic, and the preparation method is:
(1) through aqueous solution hot melt intermediate polyacrylamide, under 95 degree conditions, all be dissolved in it in aqueous solution in 1 hour, under 70 degree, add ammonium dihydrogen phosphate (ADP) and polyacrylamide, fully added polymine after the dissolving in 1 hour, continuation in 1 hour is fully fused, wherein polyacrylamide, ammonium dihydrogen phosphate (ADP), the polymine ratio of weight and number is 1:0.1-1:0.6-1.2, and in the operating process, it is that transparent thickness body is a terminating point that thing is extracted in sampling;
(2), after above-mentioned (1) step mixed dissolution thing knot speed, add glutaraldehyde and continue reaction 0.5 hour through cross-linking reaction modified polyacrylamide-polymine mixed polymer, reaction finishes, wherein glutaraldehyde is 0.002:1 with the mixture quality ratio, transfers pH value 4-6 cessation reaction with cerinic acid, promptly.
Beneficial effect: the novel anionic rubbish agent for capturing of the crosslinked body of polyacrylamide-polymine of high molecular Gaoyang charge density modification, its performance characteristic can use under wet end chemistry under the environment that the water seal circulation degree of paper machine improves becomes the more and more higher situation of very complicated anionic trash accumulation and concentration, can reduce or eliminate the interference of colloid dissolved matter.It can decided DCS on paper pulp fiber, makes wet end of machine keep the balance and stability of electric charge.It has positive electricity density height, dispersed strong, the strong molecular weight of crosslinked body performance is big, easily control, convenience operation can purify the DCS of white water loop system, and can produce than the adhesion of forceful electric power lotus balance with filler and fiber and remedied the paper stock drainability, improve the retention of paper stock, thereby reached the wet end situation of improving the paper machine.
The specific embodiment
Below in conjunction with preferred embodiment, to details are as follows according to the specific embodiment provided by the invention:
Embodiment 1
The special-purpose anionic trash agent for capturing of a kind of papermaking, with polyacrylamide, polymine, charge adjusting agent and crosslinking agent dissolve emulsification, and cross-linking reaction generates the crosslinked body polymer of polyacrylamide-polymine, its characteristicness polyacrylamide-polymine cross-linked polymer compound molecular weight is big, positive electricity density high stability is good, has the network structure characteristic, and the preparation method is:
(1) through aqueous solution hot melt intermediate polyacrylamide, under 95 degree conditions, all be dissolved in it in aqueous solution in 1 hour, under 70 degree, add ammonium dihydrogen phosphate (ADP) and polyacrylamide, fully added polymine after the dissolving in 1 hour, continuation in 1 hour is fully fused, wherein polyacrylamide, ammonium dihydrogen phosphate (ADP), the polymine ratio of weight and number is 1:0.1:0.6, and in the operating process, it is that transparent thickness body is a terminating point that thing is extracted in sampling;
(2) through cross-linking reaction modified polyacrylamide-polymine mixed polymer, after above-mentioned (1) step mixed dissolution thing knot speed, add glutaraldehyde and continue reaction 0.5 hour, reaction finishes, wherein glutaraldehyde is 0.002:1 with the mixture quality ratio, transfer pH value 4 cessation reactions with cerinic acid, promptly.
Embodiment 2
The special-purpose anionic trash agent for capturing of a kind of papermaking, the preparation method is:
(1) through aqueous solution hot melt intermediate polyacrylamide, under 95 degree conditions, all be dissolved in it in aqueous solution in 1 hour, under 70 degree, add ammonium dihydrogen phosphate (ADP) and polyacrylamide, fully added polymine after the dissolving in 1 hour, continuation in 1 hour is fully fused, wherein polyacrylamide, ammonium dihydrogen phosphate (ADP), the polymine ratio of weight and number is 1:1:1.2, and in the operating process, it is that transparent thickness body is a terminating point that thing is extracted in sampling;
(2), after above-mentioned (1) step mixed dissolution thing knot speed, add glutaraldehyde and continue reaction 0.5 hour through cross-linking reaction modified polyacrylamide-polymine mixed polymer, reaction finishes, wherein glutaraldehyde is 0.002:1 with the mixture quality ratio, transfers pH value 6 cessation reactions with cerinic acid, promptly.
Embodiment 3
The special-purpose anionic trash agent for capturing of a kind of papermaking, the preparation method is:
(1) through aqueous solution hot melt intermediate polyacrylamide, under 95 degree conditions, all be dissolved in it in aqueous solution in 1 hour, under 70 degree, add ammonium dihydrogen phosphate (ADP) and polyacrylamide, fully added polymine after the dissolving in 1 hour, continuation in 1 hour is fully fused, wherein polyacrylamide, ammonium dihydrogen phosphate (ADP), the polymine ratio of weight and number is 1:0.5:1, and in the operating process, it is that transparent thickness body is a terminating point that thing is extracted in sampling;
(2), after above-mentioned (1) step mixed dissolution thing knot speed, add glutaraldehyde and continue reaction 0.5 hour through cross-linking reaction modified polyacrylamide-polymine mixed polymer, reaction finishes, wherein glutaraldehyde is 0.002:1 with the mixture quality ratio, transfers pH value 5 cessation reactions with cerinic acid, promptly.
Test example: be used for recycled fiber and produce 120g/m
2Boxboard, the addition 12-16 kilogram of ton paper anionic trash agent for capturing, contrast does not add 20 test piece paper of anionic trash agent for capturing and on average heavily is 117g, adding 20 test pieces of anionic trash agent for capturing on average heavily is 132 g, average weight gain 15 g, the rate of recovery significantly promotes, ton paper reclaims more than 14%, 2000 yuan/ton on above ton paper, relatively adopt the not only not increase of cost of the new and effective anionic trash agent for capturing of the present invention as calculated, and regain paper pulp more than 100 yuan more than the ton paper, be paper plant's extra earning environmental protection fund more than 100 yuan/ton, and strengthened the water filtering performance that the paper machine is produced the woollen blanket wet end.
In above-mentioned bulge test, after adopting novel anionic rubbish agent for capturing of the present invention, plain boiled water suspended solid dissolved matter significantly reduces, stable production process significantly improves, the grammes per square metre of having eliminated fiber fines, half fiber and influence paper in producing continuously changes, kept balance, guaranteed and promoted the constant product quality performance.And the dissolving of closed recirculating system suspension thing solid has remained more stable numerical value, thereby reduce the load of water treatment, reduce great amount of manpower and financial resources, for manufacturing enterprise creates the production environment of very environmental protection, for condition has been created in the green sustainable development of enterprise.
The above only is preferred embodiment of the present invention, is not structure of the present invention is done any pro forma restriction.Every foundation technical spirit of the present invention all still belongs in the scope of technical scheme of the present invention any simple modification, equivalent variations and modification that above embodiment did.
Claims (1)
1. the special-purpose anionic trash agent for capturing of a papermaking, it is characterized in that: with polyacrylamide, polymine, charge adjusting agent and crosslinking agent dissolve emulsification, and cross-linking reaction generates the crosslinked body polymer of polyacrylamide-polymine, its characteristicness polyacrylamide-polymine cross-linked polymer compound molecular weight is big, positive electricity density high stability is good, has the network structure characteristic, and the preparation method is:
Through aqueous solution hot melt intermediate polyacrylamide, under 95 degree conditions, all be dissolved in it in aqueous solution in 1 hour, under 70 degree, add ammonium dihydrogen phosphate (ADP) and polyacrylamide, fully added polymine after the dissolving in 1 hour, continuation in 1 hour is fully fused, wherein polyacrylamide, ammonium dihydrogen phosphate (ADP), the polymine ratio of weight and number is 1:0.1-1:0.6-1.2, and in the operating process, it is that transparent thickness body is a terminating point that thing is extracted in sampling;
Through the modified polyacrylamide-polymine mixed polymer of cross-linking reaction, after above-mentioned (1) step mixed dissolution thing knot speed, add glutaraldehyde and continue reaction 0.5 hour, reaction finishes; Wherein glutaraldehyde is 0.002:1 with the mixture quality ratio, transfers pH value 4-6 cessation reaction with cerinic acid, promptly.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010524121 CN102002889A (en) | 2010-10-29 | 2010-10-29 | Special anion garbage capturing agent for paper making |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010524121 CN102002889A (en) | 2010-10-29 | 2010-10-29 | Special anion garbage capturing agent for paper making |
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| CN102002889A true CN102002889A (en) | 2011-04-06 |
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| CN 201010524121 Pending CN102002889A (en) | 2010-10-29 | 2010-10-29 | Special anion garbage capturing agent for paper making |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103046435A (en) * | 2012-12-31 | 2013-04-17 | 天津市奥东化工有限公司 | Dedicated anionic trash scavenger for papermaking and preparation method thereof |
| CN112301780A (en) * | 2020-09-18 | 2021-02-02 | 江苏理文造纸有限公司 | Anionic garbage control process for papermaking system |
| CN114105402A (en) * | 2021-10-22 | 2022-03-01 | 江苏理文造纸有限公司 | Papermaking white water anion garbage control process |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1200156A (en) * | 1995-09-06 | 1998-11-25 | 普罗克特和甘保尔公司 | Multilayer paper products joined with adhesives |
| EP0870868B1 (en) * | 1997-04-11 | 2003-05-28 | Metso Paper, Inc. | Press roll with ceramic coating for difficult corrosion conditions and method for manufacture of the roll |
| CN101225615A (en) * | 2008-01-04 | 2008-07-23 | 广东轻工职业技术学院 | Method for producing low weight newsprint by adding retention and drainage aids to 100% deinked waste paper pulp |
-
2010
- 2010-10-29 CN CN 201010524121 patent/CN102002889A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1200156A (en) * | 1995-09-06 | 1998-11-25 | 普罗克特和甘保尔公司 | Multilayer paper products joined with adhesives |
| EP0870868B1 (en) * | 1997-04-11 | 2003-05-28 | Metso Paper, Inc. | Press roll with ceramic coating for difficult corrosion conditions and method for manufacture of the roll |
| CN101225615A (en) * | 2008-01-04 | 2008-07-23 | 广东轻工职业技术学院 | Method for producing low weight newsprint by adding retention and drainage aids to 100% deinked waste paper pulp |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103046435A (en) * | 2012-12-31 | 2013-04-17 | 天津市奥东化工有限公司 | Dedicated anionic trash scavenger for papermaking and preparation method thereof |
| CN112301780A (en) * | 2020-09-18 | 2021-02-02 | 江苏理文造纸有限公司 | Anionic garbage control process for papermaking system |
| CN114105402A (en) * | 2021-10-22 | 2022-03-01 | 江苏理文造纸有限公司 | Papermaking white water anion garbage control process |
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Application publication date: 20110406 |