CN106320047B - Paper pulp glue joins the agent of object flotation control and its application method - Google Patents
Paper pulp glue joins the agent of object flotation control and its application method Download PDFInfo
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- CN106320047B CN106320047B CN201610763315.0A CN201610763315A CN106320047B CN 106320047 B CN106320047 B CN 106320047B CN 201610763315 A CN201610763315 A CN 201610763315A CN 106320047 B CN106320047 B CN 106320047B
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- paraffin
- paper pulp
- suspension
- glue
- parts
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Classifications
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
- D21C5/02—Working-up waste paper
- D21C5/022—Chemicals therefor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/64—Paper recycling
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Toxicology (AREA)
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Abstract
The present invention relates to a kind of connection object flotation control agent of paper pulp glue and its application methods, and under conditions of higher than paraffin melting temperature, the controlling agent includes：It is mixed according to parts by weight and is sufficiently stirred water, cationic starch and paraffin together, controlling agent by adequately mixing and adequately stirring formation is suspension, wherein water is 80 84 parts, cationic starch is 28 parts, paraffin is 8 18 parts, and the controlling agent is configured to the basic solvent in 89 range of pH value by basic solvent.Application method includes the following steps：（1）Suspension is poured into paper pulp and is thoroughly mixed, the temperature of wherein suspension and paper pulp is above the melting temperature of paraffin；（2）The mixeding liquid temperature of suspension and paper pulp is gradually reduced to the melting temperature critical point of paraffin, stops stirring at this time, and stand, continues to cool down under static conditions；（3）When the glue for being stained with paraffin joins object and swims on liquid level, floating material is pulled out.
Description
Technical field
The present invention relates to a kind of crosslinking agent controlling agent more particularly to a kind of connection object flotation control agent of paper pulp glue and its users
Method.
Background technology
It is well known that three big features of pulping and paper-making industry are：Raw material is intensive, intensive capital, technology-intensive, with the energy
It is increasingly paid close attention to by every country with environmental problem, the recycling of secondary stock is increasingly taken seriously, and secondary
The utilization of fiber proportion shared in paper industry from now on is more and more, and also by further sustainable growth, but produces
In various problems it is also following, wherein the most prominent and more scabrous problem is exactly sicker problem on obstacle.Sicker
Adhesive tape, label, bookbinding glue or hot melt adhesive residue, the coating of coating paper, wax, ink connection in waste paper
Agent, latex, wet strength agent and other polymer.The harm of sicker is mainly shown as：（1）It is deposited on strainer, blocks mesh, make
At drainage difficulty, increase the stop cleaning time；（2）It is deposited on press felt and pressure roller, shortens felt service life, influence paper
Page dehydration；（3）Being adhered on dryer surface causes page to break end；（4）Remain in page, form stain, increases paper defects；（5）
It is gathered in plain boiled water, forms anionic trash, influence the effect of cationic auxiliary, shadow is generated to the closed circulation of paper making water
It rings.
Sicker can be divided into macro stickies according to particle size classification（Grain size 100 or 150 μm or more are until 2000 μm）
And microstickies（0.003-25 μm of grain size）.In general, the removal of macro stickies is mainly the method by physical mechanical,
These methods include screening, washing, heat partition etc., and mainly most of sicker is removed by fine screen wherein in screening installation, because
The selection of this fine screen equipment is most important；Heat partition and mechanical dispersion process can further size degradation larger particles gluing
Object, make its be dispersed to visually observe less than state, finally as paper pulp enters follow-up workshop section, but these can not be prevented
Influence of the sicker being invisible to the naked eye to follow-up workshop section.Removal for microstickies, chemical method are a kind of having for row
The means of effect, the biological enzyme stickies control agent occurred at present are a kind of novel stickies control agent, the effect of the controlling agent
Principle is directly to interrupt the ester bond connection of sicker, and the sicker for macromolecular of degrading makes it lose the viscosity of sicker itself, prevents
The wadding again for having stopped sicker in follow-up workshop section is poly-.But for manufacturing for class paper plant, biological enzyme stickies control agent
Use can greatly increase use cost, lose more than gain compared with the loss that sicker is brought.Therefore our company is in prior art
Under the conditions of study the sicker that new method is come in removal system.
Invention content
The present invention overcomes the deficiencies in the prior art, a kind of paper pulp glue connection object flotation control agent of low cost is provided and its is made
Use method.
In order to achieve the above objectives, a kind of technical solution that the present invention uses for：A kind of connection object flotation control agent of paper pulp glue and
Its application method, including：It is characterized in that, under conditions of higher than paraffin melting temperature, the controlling agent includes：According to weight
Part mixes and is sufficiently stirred water, cationic starch and paraffin together, by adequately mixing and adequately stirring formation
Controlling agent is suspension, and wherein water is 80-84 parts, and cationic starch is 2-8 parts, and paraffin is 8-18 parts, and the controlling agent passes through
Basic solvent is configured to the basic solvent within the scope of pH value 8-9.
In a preferred embodiment of the present invention, the paraffin of the melting forms the wax drop of melting in aqueous solution, melting
Wax grain surface adhesion has one layer of cationic starch.
In a preferred embodiment of the present invention, the paraffin melting temperature is 52-80 DEG C.
In a preferred embodiment of the present invention, basic solvent is sodium bicarbonate.
The another technical solution that the present invention uses for：A method of joining object flotation control agent using paper pulp glue, it is special
Sign is, includes the following steps：
（1）Suspension is poured into paper pulp and is thoroughly mixed, the temperature of wherein suspension and paper pulp is above paraffin
Melting temperature；
（2）The mixeding liquid temperature of suspension and paper pulp is gradually reduced to the melting temperature critical point of paraffin, is stopped at this time
Stirring, and stand, continue to cool down under static conditions；
（3）When the glue for being stained with paraffin joins object and swims on liquid level, floating material is pulled out.
In a preferred embodiment of the present invention, the temperature drop for continuing cooling under static conditions is not less than 5 DEG C.
In a preferred embodiment of the present invention, the suspension is gradually added into the process for being stirred continuously paper pulp.
The invention solves the defect existing in the background technology, and the present invention has following advantageous effect：
（1）It, can be after its adhesive gel joins object by the static glue for making paraffin adhere to by using the smaller density of paraffin
Connection object is swum on liquid level, is easy to remove the glue in paper pulp and is joined object.
（2）By using the smaller fusing point of paraffin, make more than its fusing point, makes it be easy to be combined with cationic starch, so
It is combined afterwards with glue connection object, realizes the removal of glue connection object.
（3）The negative electrical charge that glue connection object carries is easy to adhere to each other together with cationic starch, is combined in advance since wax drips
Starch.Fiber is mostly neutral uncharged, therefore its accurate combination for realizing wax drop and glue connection object, is ensured on paraffin
Floating is only that glue joins object, and fiber content is relatively low.
（4）Adequately stirring makes wax drop in suspension exist in the form of molecule, and has taken positive charge, to paper
Suspension is poured into slurry can gradually make wax drop that glue be combined to join object.
Specific implementation mode
Presently in connection with embodiment, the present invention is described in further detail.
A kind of connection object flotation control agent of paper pulp glue and its application method, including：Under conditions of higher than paraffin melting temperature,
Controlling agent includes：It is mixed according to parts by weight and is sufficiently stirred water, cationic starch and paraffin together, by adequately mixing
The controlling agent formed with sufficient stirring is suspension, and wherein water is 80-84 parts, and cationic starch is 2-8 parts, paraffin 8-18
Part, controlling agent is configured to the basic solvent within the scope of pH value 8-9 by basic solvent.
By using the smaller density of paraffin, object can be joined by the static glue for making paraffin adhere to after its adhesive gel joins object
It swims on liquid level, is easy to remove the glue in paper pulp and joins object.By using the smaller fusing point of paraffin, makes more than its fusing point, make
It is easy to be combined with cationic starch, is then combined with glue connection object, realizes the removal of glue connection object.
The paraffin of melting forms the wax drop of melting in aqueous solution, and the wax grain surface adhesion of melting has one layer of cation to form sediment
Powder.The negative electrical charge that glue connection object carries is easy to adhere to each other together with cationic starch, since wax drop combines starch in advance.It is fine
Mostly dimension is neutral uncharged, therefore its accurate combination for realizing wax drop and glue connection object, ensures to float only with paraffin
It is glue connection object, fiber content is relatively low.
Paraffin melting temperature is 52-80 DEG C, and basic solvent is sodium bicarbonate.
A method of joining object flotation control agent using paper pulp glue, which is characterized in that include the following steps：
（1）Suspension is poured into paper pulp and is thoroughly mixed, the temperature of wherein suspension and paper pulp is above paraffin
Melting temperature；
（2）The mixeding liquid temperature of suspension and paper pulp is gradually reduced to the melting temperature critical point of paraffin, is stopped at this time
Stirring, and stand, continue to cool down under static conditions；
（3）When the glue for being stained with paraffin joins object and swims on liquid level, floating material is pulled out.
Adequately stirring makes wax drop in suspension exist in the form of molecule, and has taken positive charge, to paper pulp
In pour into suspension can gradually make wax drop combine glue join object.
The temperature drop for continuing cooling under static conditions is not less than 5 DEG C, can ensure that all wax drops can be whole in this way
Liquid level is precipitated and swum in from slurries with the solid-state form of wax grain, facilitates the paraffin removed in slurries.
Suspension is gradually added into the process for being stirred continuously paper pulp, and the effect that can reach and gradually combine is gradually added into.
Based on the above description of the preferred embodiments of the present invention, through the above description, related personnel completely can be with
Without departing from the scope of the technological thought of the present invention', various changes and amendments are carried out.The technical scope of this invention
It is not limited to the contents of the specification, it is necessary to determine the technical scope according to the scope of the claims.
Claims (7)
1. a kind of paper pulp glue joins object flotation control agent, which is characterized in that under conditions of higher than paraffin melting temperature, the control
Agent includes：Water, cationic starch and paraffin together is mixed and is sufficiently stirred according to parts by weight, by adequately mixing and filling
The controlling agent that the stirring divided is formed is suspension, and wherein water is 80-84 parts, and cationic starch is 2-8 parts, and paraffin is 8-18 parts,
The controlling agent is configured to the basic solvent within the scope of pH value 8-9 by basic solvent.
2. paper pulp glue according to claim 1 joins object flotation control agent, it is characterised in that：Paraffin shape in aqueous solution
It is dripped at the wax of melting, the wax grain surface adhesion of melting has one layer of cationic starch.
3. paper pulp glue according to claim 1 joins object flotation control agent, it is characterised in that：The paraffin melting temperature is
52-80℃。
4. paper pulp glue according to claim 1 joins object flotation control agent, it is characterised in that：Basic solvent is sodium bicarbonate.
5. a kind of method joining object flotation control agent using paper pulp glue as described in claim 1, which is characterized in that including following
Step：
（1）Suspension is poured into paper pulp and is thoroughly mixed, the temperature of wherein suspension and paper pulp is above the melting of paraffin
Temperature；
（2）The mixeding liquid temperature of suspension and paper pulp is gradually reduced to the melting temperature critical point of paraffin, stops stirring at this time,
And stand, continue to cool down under static conditions；
（3）When the glue for being stained with paraffin joins object and swims on liquid level, floating material is pulled out.
6. according to the method described in claim 5, it is characterized in that：The temperature drop for continuing cooling under static conditions is not less than
5℃。
7. according to the method described in claim 5, it is characterized in that：The suspension is gradual in the process for being stirred continuously paper pulp
It is added.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610763315.0A CN106320047B (en) | 2016-08-31 | 2016-08-31 | Paper pulp glue joins the agent of object flotation control and its application method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610763315.0A CN106320047B (en) | 2016-08-31 | 2016-08-31 | Paper pulp glue joins the agent of object flotation control and its application method |
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| Publication Number | Publication Date |
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| CN106320047A CN106320047A (en) | 2017-01-11 |
| CN106320047B true CN106320047B (en) | 2018-07-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610763315.0A Active CN106320047B (en) | 2016-08-31 | 2016-08-31 | Paper pulp glue joins the agent of object flotation control and its application method |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1277285A (en) * | 1999-06-15 | 2000-12-20 | 杭州市化工研究所 | Resin obstruction controlling agent for paper making |
| CN103422382A (en) * | 2012-05-21 | 2013-12-04 | 埃科莱布美国股份有限公司 | A method and a composition for reducing viscosity of organic contaminants in pulp processes and papermaking processes |
-
2016
- 2016-08-31 CN CN201610763315.0A patent/CN106320047B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1277285A (en) * | 1999-06-15 | 2000-12-20 | 杭州市化工研究所 | Resin obstruction controlling agent for paper making |
| CN103422382A (en) * | 2012-05-21 | 2013-12-04 | 埃科莱布美国股份有限公司 | A method and a composition for reducing viscosity of organic contaminants in pulp processes and papermaking processes |
Non-Patent Citations (2)
| Title |
|---|
| 废旧铜版纸中胶粘物的化学法脱除工艺及其机理研究;崔璜婷;《万方学位论文数据库》;20101222;第5-7页 * |
| 高取代度阳离子淀粉和瓜尔胶控制废纸浆胶粘物;山东东达生物化工有限公司;《http://www.sddasw.com/article/20150208143424.html》;20150208 * |
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| Publication number | Publication date |
|---|---|
| CN106320047A (en) | 2017-01-11 |
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