CN100580037C - Deinking agent - Google Patents
Deinking agent Download PDFInfo
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- CN100580037C CN100580037C CN200710113465A CN200710113465A CN100580037C CN 100580037 C CN100580037 C CN 100580037C CN 200710113465 A CN200710113465 A CN 200710113465A CN 200710113465 A CN200710113465 A CN 200710113465A CN 100580037 C CN100580037 C CN 100580037C
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- deinking agent
- deinking
- agent
- voranol
- water
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Abstract
The invention relates to a special deinking agent for old newspaper (ONP), containing polyoxyethylene alkyl ether, polyoxyethylene polyol ester, fatty salt, lauryl sulfate, sodium lignosulfonate and inorganic matter; the deinking agent has good biodegradability, which greatly reduces environment pollution. As appropriate amount of foam can be maintained during processing, the deinking agent provides good practicability. High quality reclaimed pulp with high whiteness and low amount of residual printing ink can be obtained when the deinking agent is used. The deinking agent is liquid, usage and storage is convenient, and cost for deinking is low, thereby reducing processing cost.
Description
Technical field
The present invention relates to pulp technology for making paper, the prescription of the special-purpose deinking agent of a kind of specifically old newspaper.
Background technology
Deinking is the new direction of paper industry development in recent years, and from effectively utilizing the angle of natural resources and enviroment protection, utilizing again of waste paper is more important with regard to what become.Especially the Deinking of Waste Newspaper slurry is widely used in fields such as producing newsprinting paper, supercalendered paper.
Utilize in the secondary fiber papermaking production process and generally will handle: add alkaline reagents such as sodium hydroxide, water glass etc. with following reagent is mixed, add SYNTHETIC OPTICAL WHITNER such as hydrogen peroxide, and sequestrant such as EDTA, add one or more tensio-active agents again as deinking agent.Deinking agent is divided into two kinds of flotation process deinking agent and washing method deinking agents.The washing method deinking requires to use a large amount of water, along with the reinforcement of environmental consciousness and environmental regulation, and the fewer and feweri aborning use of washing method, along with the modern paper development of technology, deinking technology mainly transfers the flotation process deinking to.
In recent years, from the angle of environmental protection, deinking agent is had higher requirement.Require deinking agent that good deinking performance is not only arranged, and also should possess good biodegradability.Yet traditional deinking agent has only been considered the deinking performance aspect, adopts materials such as being difficult to biodegradable tensio-active agent that contains phenyl ring such as polyoxyethylene nonylphenol ether, has increased the weight of the pollution to environment.
Though the employed compound of some patent has good biodegradability, its performance as deinking agent itself is very not enough.
On the other hand, along with deinking equipment such as drum-type pulping engine, the progress of heat dispersion machine etc., deinking efficient has had very big improvement, but the printing ink of peeling off simultaneously also trends towards micronize.Traditional deinking agent based on anion surfactant is being caught the poor ability of peeling off short grained ink particle, and the high-quality old newspaper recycled pulp that therefore will obtain high whiteness and low residual ink is just relatively more difficult.
Summary of the invention
The present invention is according to the characteristics of the used printing ink of old newspaper, find out its denominator, in conjunction with the influence of modern deinking equipment development, with various effective surfactant compounds to ink particle, obtain a kind of suitable flotation process, can efficiently remove the preparation method of old newspaper printing ink deinking agent.The deinking of Waste Newspaper that is fit to various homemade and imports.Simultaneously, selected tensio-active agent has good biodegradability, will drop to minimum to the pollution of environment.
The present invention can realize by following technical measures:
A kind of deinking agent, it comprises the water of 33-51wt%, the tensio-active agent of 49-67wt% and inorganics.The ratio of each component (weight percent) is:
Dodecyl sulfate 5-8%
Polyoxyethylene polyols ester 8-12%
Voranol EP 2001 8-12%
Soap 25-30%
Sodium lignosulfonate 1-2%
Water glass 1-2%
Remainder water
Wherein soap comprises stearic acid, oleic acid, palmitinic acid and linolenic acid.
Voranol EP 2001 is represented by following formula (1):
RO[CH
2CH
2O]
nH (1)
Wherein, R represents the alkyl of 10-18 carbon atom, and n represents 3-9.Its consumption folding 100%.
The polyoxyethylene polyols ester is by following formula (2) expression, and wherein R shows the alkyl of 10-12 carbon atom:
C
6H
8O[O(CH
2CH
2O)
20OH]OOCR(2)
Its consumption folding 100%.
Deinking agent pH value is 8-9.
Can find that by above description beneficial effect of the present invention is: with anionic tensio-active agent and the composite use of nonionogenic tenside, wherein dodecyl sulfate has good latherability, and bubble exquisiteness, stable, soap has excellent trapping ability, can capture tiny ink particle, polyoxyethylene polyols ester and Voranol EP 2001 have good dispersive ability and emulsifying capacity, make the deinking agent that obtains that long stability and excellent deinking performance be arranged.
Deinking agent of the present invention has favorable biological degradability, greatly reduces the pollution to environment.This deinking agent provides good operating performance, can keep suitable bubble amt during the whole floatation and ink removing.Use this deinking agent, can obtain to have the high-quality regenerated paper pulp of high whiteness and low residual ink amount.The deinking of Waste Newspaper that is fit to various homemade and imports.
This deinking agent is brown liquid, and is nonflammable, nontoxic, therefore as safe as a house, and satisfactory stability was arranged in six months, can not decompose also and can not precipitate.
Description of drawings
Fig. 1 deinking of Waste Newspaper process flow sheet of the present invention.
Embodiment
Below by embodiment the present invention is described in further detail.
Preparing 1 kilogram of this deinking agent needs:
Water 400g
Polyoxyethylene polyols ester 100g
Stearate 300g
Dodecyl sulfate 50g
Sodium lignosulfonate 20g
Water glass 20g
Sodium hydroxide 10g
Voranol EP 2001 100g
Above-mentioned pharmaceutical chemicals is market and buys, and wherein polyoxyethylene polyols ester and Voranol EP 2001 are commercially available commodity nonionogenic tenside, its consumption folding 100%.
Start mixing tank, above-mentioned medicine is joined in the mixing tank successively, the intact a kind of stock yard of every throwing was every 15 minutes, and medicine is pulpous state after dissolving fully.Medicine has all been thrown the back stirring and had been got final product discharging in 20 minutes.
It is stable that the deinking agent of preparation kept in 6 months, do not have demixing phenomenon, and pH is 9.
In the deinking production process, the same hydrogen peroxide of the deinking agent that is respectively waste paper weight 3%, water glass etc. are squeezed in the drum-type pulping engine by volume pump, finish the whole process of deinking slurrying by the described flow process of Fig. 1.
The evaluating data that obtains on this production line is shown in subordinate list 1.
Shown in subordinate list 1, the deinking agent that the present invention prepared has excellent performance on the deinking of Waste Newspaper production line, and the flotation average energy improves the 8.6%ISO whiteness, and finished product is starched and become paper that good whiteness is all arranged.
The testing data that obtains on table 1 production line
Annotate: the %ISO of whiteness unit.
Can find by last table, use deinking agent of the present invention, can obtain to have the high quality regenerated paper pulp of high whiteness.
Claims (4)
1, a kind of deinking agent comprises the water of 33-51wt%, and the tensio-active agent of 49-67wt% and inorganics is characterized in that each weight percentages of components is in the prescription:
Dodecyl sulfate 5-8%
Polyoxyethylene polyols ester 8-12%
Voranol EP 2001 8-12%
Soap 25-30%
Sodium lignosulfonate 1-2%
Water glass 1-2%
Sodium hydroxide 1%
Remainder water.
2, a kind of deinking agent according to claim 1 is characterized in that: soap comprises stearic acid, oleic acid, palmitinic acid and oleum lini hydrochlorate.
3, a kind of deinking agent according to claim 1, the Voranol EP 2001 that wherein comprises is represented by following formula (1):
RO[CH
2CH
2O]
nH (1)
Wherein, R represents the alkyl of 10-18 carbon atom, and n represents 3-9.
4, a kind of deinking agent according to claim 1 is characterized in that: the pH value is 8-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710113465A CN100580037C (en) | 2007-10-30 | 2007-10-30 | Deinking agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710113465A CN100580037C (en) | 2007-10-30 | 2007-10-30 | Deinking agent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101177558A CN101177558A (en) | 2008-05-14 |
| CN100580037C true CN100580037C (en) | 2010-01-13 |
Family
ID=39403990
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710113465A Expired - Fee Related CN100580037C (en) | 2007-10-30 | 2007-10-30 | Deinking agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100580037C (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101928485B (en) * | 2009-06-24 | 2012-05-30 | 中国制浆造纸研究院 | Waste paper deinking agent |
| CN102277763B (en) * | 2011-08-12 | 2013-06-05 | 西安理工大学 | Neutral deinking agent for waste newspaper and waste book and periodical paper, preparation method of neutral deinking agent and deinking method |
| CN103464302A (en) * | 2013-08-20 | 2013-12-25 | 铜陵鑫腾矿业科技有限公司 | Copper oxide ore beneficiation collecting agent and preparation method thereof |
| CN106318011A (en) * | 2015-06-19 | 2017-01-11 | 上海东升新材料有限公司 | High-efficiency deinking agent and preparation method thereof |
| CN105504955A (en) * | 2016-01-19 | 2016-04-20 | 黄家亨 | Deinking agent, and preparation method and technological conditions thereof |
| CN106087510B (en) * | 2016-07-29 | 2018-06-01 | 广州造纸股份有限公司 | A kind of fatty acid soaps deinking agent and its preparation method and application |
| CN110183897A (en) * | 2019-06-26 | 2019-08-30 | 珠海横琴思国科技发展有限公司 | A kind of environmental protection, efficient polyurethane ink deinking agent and preparation method thereof |
-
2007
- 2007-10-30 CN CN200710113465A patent/CN100580037C/en not_active Expired - Fee Related
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| Publication number | Publication date |
|---|---|
| CN101177558A (en) | 2008-05-14 |
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