CN101555371B - Waste paper deinking agent and preparation method thereof - Google Patents
Waste paper deinking agent and preparation method thereof Download PDFInfo
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- CN101555371B CN101555371B CN2009100434461A CN200910043446A CN101555371B CN 101555371 B CN101555371 B CN 101555371B CN 2009100434461 A CN2009100434461 A CN 2009100434461A CN 200910043446 A CN200910043446 A CN 200910043446A CN 101555371 B CN101555371 B CN 101555371B
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- waste paper
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Abstract
The invention discloses a waste paper deinking agent and a preparation method thereof. The invention is characterized by comprising the following substances by gewichtszusammensetzung: 15-20 parts of stearic acid, 20-25 parts of oleic acid, 35-40 parts of hexadecanoic acid, 10-15 parts of sodium hydroxide and 5-10 parts of fatty alcohol polyoxyethylene ether. The preparation method is: adding stearic acid, oleic acid, hexadecanoic acid to a thermostatic reaction kettle at the temperature of 75-85 DEG C, stirring the mixture for 30-40min at the speed of 30-50r/min to mix the mixture evenly; adjusting the pH value to 9.5-10.5 by sodium hydroxide; adding the fatty alcohol polyoxyethylene ether and carrying out even mixing, standing, drying and natural cooling to room temperature, thus obtaining the waste paper deinking agent. The waste paper deinking agent of the invention features good floatation capacity, good printing ink capturing property, moderate foam, high degree of whiteness of pulp and small fiber loss; in particular, the waste paper deinking agent is applicable to deinking of news bogus paper by floatation method.
Description
Technical field
The present invention relates to a kind of waste paper deinking agent and preparation method thereof, belong to the papermaking chemical product field.
Background technology
Waste paper is important renewable resources, the recycling of waste paper be solve that paper industry faces that there is lack of raw materials, the effective way of energy shortage and three big problems such as seriously polluted.Utilize deinking slurrying to produce recycled writing paper to have the environmental pollution of minimizing, simplify technical process, advantage such as cut down the consumption of energy, have good economic benefit and social benefit.
The key link of waste paper regenerated utilization is a deinking, and wherein waste paper deinking agent is the key assistant that influences the regenerated paper pulp quality, the good and bad quality that directly influences regenerated paper pulp of waste paper deinking agent.Deinking process generally can be divided into three phases, and the one, discongest separated fiber: main effect is to make fiber separation, and under mechanical effect and proper temperature condition, fiber evenly separates, and ink particle in blocks is spread out, for the next stage stablizes deinking and creates conditions; The 2nd, the process that ink particle breaks away from from fiber: mainly be to utilize pharmaceutical chemicals, make the printing ink saponification, pigment particles is separated from fiber; The 3rd, ink particle is removed from slurry.And ink particle will be removed from will expect, method commonly used has washing method and flotation process, and flotation, washing hybrid system.The flotation process deinking process require ink particle will be gathered into bigger particle diameter, and the washing method deinking then requires the ink particle high dispersing.
Difference according to de-inking method can be divided into waste paper deinking agent flotation process deinking agent and washing method deinking agent.The flotation process deinking agent requires that foaming power is preferably arranged, and makes the surface that swims in that the printing ink ion can be very fast, and foam is of moderate size when flotation, and the trapping ink performance is good.The whipability of tensio-active agent also plays a decisive role in waste paper deinking agent, and the foaming properties of tensio-active agent comprises two aspects, i.e. foaming power and froth stability.In the washing method deinking, the foam that require to produce is less, and the ink particle of foam absorption is less, can be in the finished product slurry because lather collapse produces big printing ink group, both required the tensio-active agent of foaming power and froth stability difference.Foam to tensio-active agent in the flotation process deinking has many-sided requirement, flotation is to utilize foam ink particle and fiber separation, the printing ink ionic adsorption is on bubble, float on the slurry face, be sucked away or overflow is walked, how many ink particles can be adsorbed by foam, depends primarily on foam volume and foam size, and the ink particle that foam is adsorbed more is just many.The foam particle diameter is excessive, and the foam lift velocity is fast, and is few with the ink particle touch opportunity, and the ink particle of absorption is just few; The foam particle diameter is too small, and the quantity of ink of absorption is also little, so the foam particle diameter is moderate.After foam floats on the slurry face, need certain stability, so that foam overflows to the scum silica frost pond if having time or siphoned away by vacuum, but foam is too stable, antifoaming speed is too slow, concerning the big paper plant of output, can cause that foam volume is too big in the scum silica frost pond, have little time froth breaking, foam disorderly overflows, need to come froth breaking, cause unnecessary waste with big water gaging or defoamer.Flotation cell adopts overflow to remove the foam of slurry face more, and this requires foam that certain fluidity will be arranged.Need reach the bubble power of appropriateness in a word to the foam of deinking agent, foam is of moderate size, and bubble mobility is good, and froth breaking is fast, and foam to the absorption of printing ink well.
Waste paper deinking agent generally is to be formed by dissimilar surfactant compounds.The kind of tensio-active agent is a lot, and effect is different, the range of application difference.The foaming power of anion surfactants such as fatty acid soaps, sulphonated oil, linear alkylbenzene sulphonic acid, sodium alkyl sulfate, Sodium docusate salt, polyoxyethylene alkyl ether sulfate sodium is better, and foam is also fine and smooth, and deinking efficiency is also stronger.Soap (as sodium oleate, sodium stearate etc.) has good chela and ability for metal ion, and can effectively capture and flotation printing ink by electrostatic attraction, has good trapping ink ability.Nonionogenic tensides such as alkylphenol polyoxyethylene, fatty alcohol-polyoxyethylene ether, polyoxyethylene sorbitan fatty acid ester, polyoxyethylene carboxylate have performances such as good wetting, infiltration, emulsification, dispersion, and are also very favourable aspect foaming properties control.
Summary of the invention
The object of the present invention is to provide and a kind ofly floating make that ability is strong, trapping ink is good, moderate foam, pulp brightness height, waste paper deinking agent that fiber loss is few.At the characteristics of flotation process deinking process and crushed news raw material, adopt stearic acid (CH
3(CH
2)
16COOH), oleic acid (CH
3(CH
2)
15CHCOOH), palmitinic acid (CH
3(CH
2)
14COOH) be main raw material synthetic fatty acid soap, tested of the influence of the ratio of three kinds of lipid acid, determined the proportioning of these three kinds of lipid acid deinking efficiency; Tested simultaneously and the composite influence of the fatty alcohol-polyoxyethylene ether of different amounts, determined the proportioning of fatty alcohol-polyoxyethylene ether deinking efficiency.
The object of the present invention is achieved like this: a kind of waste paper deinking agent, it is characterized in that: by following material by weight component constitute, its components by weight percent is: stearic acid 15～20, oleic acid 20～25, palmitinic acid 35～40, sodium hydroxide 10～15, fatty alcohol-polyoxyethylene ether 5～10.The preparation method of waste paper deinking agent of the present invention is: with stearic acid, oleic acid, palmitinic acid by weight component join in 75～85 ℃ of isothermal reaction stills, stirred 30～40 minutes with 30～50 rev/mins, make it to mix equably, regulate pH to 9～10 with sodium hydroxide, add fatty alcohol-polyoxyethylene ether, mix, leave standstill, drying naturally cools to room temperature promptly.The deinking agent outward appearance is faint yellow flap, is convenient to store, transports and uses.
Deinking agent of the present invention has fairly obvious synergistic action effect.When flotation, foam is of moderate size, and foam stabilization, foam be black (absorption to oil is better), and the scum silica frost froth breaking is fast.Its major advantage is that flotation capacity is strong, trapping ink is good, moderate foam, pulp brightness height, fiber loss are few etc.Be applicable to the flotation process deinking of crushed news.Built up 1000 tons of/year waste paper deinking agent production lines at present, successively used, reached import deinking agent result of use, alternative imported product in large-scale paper mills such as Yueyang paper industry, Yongzhou Xiang River paper industries.
Embodiment:
Embodiment 1:
100g stearic acid, 125g oleic acid, 175g palmitinic acid are added in the 1000ml beaker, be heated to 75 ℃ of thawings, and maintain the temperature at 80 ℃, with 50 rev/mins of stirrings 30 minutes, make it to mix equably, add sodium hydroxide 60g and carry out saponification, react 60 minutes adding fatty alcohol-polyoxyethylene ether 40g, mix, leave standstill, drying naturally cools to room temperature and promptly gets product.
Embodiment 2:
150kg stearic acid, 200kg oleic acid, 350kg palmitinic acid are added in 80 ℃ of isothermal reaction stills, stirred 40 minutes with 30 rev/mins, make it to mix equably, add sodium hydroxide 100kg and carry out saponification, react 60 minutes adding fatty alcohol-polyoxyethylene ether 50kg, mix, leave standstill, drying naturally cools to room temperature and promptly gets product.
Embodiment 3:
With the crushed news is raw material, and deinking agent of the present invention is carried out pulping and flotation test.The pulping condition is a pulping concentration: 15%, and the pulping temperature: 50 ℃, pulping time: 10min.The chemical addition is a deinking agent 0.4%, NaOH:0.45%, Na
2SiO
3: 0.9%, H
2O
2: 0.5%.Flotation conditions is a floatation concentration: 1%, and flotation time: 30min, air pressure: 11PSI.Domestic and international deinking agent effect is compared, and the result is as follows:
As can be seen from the above table, deinking agent flotation whiteness of the present invention increment reaches 6.06%ISO, is higher than 3#, 4#, the homemade deinking agent of 5# and 1# import deinking agent, and is approaching with import deinking agent 2# ten minutes; The printing ink clearance reaches 60.23%, is higher than 3#, 4#, the homemade deinking agent of 5# and 1#, 2# import deinking agent far away.
Claims (2)
1. waste paper deinking agent is characterized in that: by following material by weight component constitute, its components by weight percent is: stearic acid 15～20, oleic acid 20～25, palmitinic acid 35～40, sodium hydroxide 10～15, fatty alcohol-polyoxyethylene ether 5～10.
2. the preparation method of waste paper deinking agent according to claim 1, it is characterized in that: with stearic acid, oleic acid, palmitinic acid by weight component join in 75～85 ℃ of isothermal reaction stills, stirred 30～40 minutes with 30～50 rev/mins, make it to mix equably, regulate pH to 9.5～10.5, add fatty alcohol-polyoxyethylene ether with sodium hydroxide, mix, leave standstill, drying naturally cools to room temperature promptly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100434461A CN101555371B (en) | 2009-05-15 | 2009-05-15 | Waste paper deinking agent and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100434461A CN101555371B (en) | 2009-05-15 | 2009-05-15 | Waste paper deinking agent and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101555371A CN101555371A (en) | 2009-10-14 |
| CN101555371B true CN101555371B (en) | 2011-05-11 |
Family
ID=41173662
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100434461A Expired - Fee Related CN101555371B (en) | 2009-05-15 | 2009-05-15 | Waste paper deinking agent and preparation method thereof |
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| Country | Link |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102277031B (en) * | 2011-07-06 | 2014-01-29 | 单县天元化工有限公司 | Preparation method of efficient waste paper de-inking agent |
| CN102391713B (en) * | 2011-10-25 | 2013-12-11 | 华南理工大学 | Deinking agent containing modified product of lignin and preparation method thereof |
| CN102505548B (en) * | 2011-11-07 | 2013-11-27 | 华南理工大学 | Synchronous remover for mixed impurities of ink and adhesive in waste paper, and preparation method thereof |
| CN102516840B (en) * | 2011-12-05 | 2013-11-13 | 华南理工大学 | Deinking agent adopting drainage oil as main raw material and preparation method of deinking agent |
| CN102675955A (en) * | 2012-06-15 | 2012-09-19 | 沛县卫星化工厂 | Waste paper deinking agent and preparation method thereof |
| CN104710854A (en) * | 2015-03-19 | 2015-06-17 | 九洲生物技术（苏州）有限公司 | Solid deinking agent, preparation method and application thereof |
-
2009
- 2009-05-15 CN CN2009100434461A patent/CN101555371B/en not_active Expired - Fee Related
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|---|---|
| CN101555371A (en) | 2009-10-14 |
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Owner name: HU NAN TAIGELIN PAPER GROUP ANTAI TRADING CO., LTD Free format text: FORMER OWNER: YUEYANG PAPER-MAKING INDUSTRY CO., LTD. Effective date: 20110222 |
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Inventor after: Pan Guihua Inventor after: Yang Aolin Inventor after: Li Dan Inventor after: Chen Jinshan Inventor after: Ding Chunhua Inventor after: Chen Jianguo Inventor before: Pan Guihua Inventor before: Yang Aolin Inventor before: Li Dan Inventor before: Chen Jinshan |
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Free format text: CORRECT: INVENTOR; FROM: PAN GUIHUA YANG AOLIN LI DAN CHEN JINSHAN TO: PAN GUIHUA YANG AOLIN LI DANCHEN JINSHAN DING CHUNHUA CHEN JIANGUO |
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Effective date of registration: 20110222 Address after: 414002 No. 1 Guangming Road, Yueyang, Hunan, Chenglingji Applicant after: Hunan Taigelin Paper Group Antai Trade Co., Ltd. Address before: 414002 No. 1 Guangming Road, Yueyang, Hunan, Chenglingji Applicant before: Yueyang Paper-making Industry Co., Ltd. |
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