WO1992007996A1 - Agent de desencrage - Google Patents

Agent de desencrage Download PDF

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Publication number
WO1992007996A1
WO1992007996A1 PCT/JP1990/001367 JP9001367W WO9207996A1 WO 1992007996 A1 WO1992007996 A1 WO 1992007996A1 JP 9001367 W JP9001367 W JP 9001367W WO 9207996 A1 WO9207996 A1 WO 9207996A1
Authority
WO
WIPO (PCT)
Prior art keywords
alcohol
deinking agent
deinking
ethylene oxide
pulp
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP1990/001367
Other languages
English (en)
Japanese (ja)
Inventor
Hideaki Urushibata
Koji Hamaguchi
Hiroyoshi Hiramatsu
Yoshitaka Miyauchi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kao Corp
Original Assignee
Kao Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Kao Corp filed Critical Kao Corp
Priority to US07/752,620 priority Critical patent/US5281358A/en
Priority to PCT/JP1990/001367 priority patent/WO1992007996A1/fr
Priority to CA 2047182 priority patent/CA2047182C/fr
Priority to KR1019910701320A priority patent/KR940007870B1/ko
Publication of WO1992007996A1 publication Critical patent/WO1992007996A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • D21C5/025—De-inking
    • D21C5/027—Chemicals therefor
    • 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
    • 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

Definitions

  • the present invention relates to a deinking agent used when recycling used paper such as newspapers and magazines. More specifically, high b-value deinked pulp can be obtained when deinking newspapers, magazines, etc. by a flotation method and an eclectic method with the washing method. Black ink.
  • waste paper is becoming even more steep in terms of deinking, such as changes in printing technology and printing methods, changes in printing ink components, and the use of waste paper that has not been collected and used in the past.
  • improvements have been made to equipment to further promote deinking.
  • Chemicals that have been used in the past to separate and remove ink and other impurities from waste paper include alkaline agents such as caustic soda, sodium silicate, sodium carbonate, and sodium phosphate, hydrogen peroxide, and the like.
  • -Yin activators such as refine sulfonate and dialkyl sulfosuccinate, high-grade alcohol, alcohol
  • Nonionic activators such as kylphenol and fatty acid ethylenoxide adducts, and alkanolamides, have been used alone or in combination of two or more.
  • these deinking agents have a high foaming property in the flotation treatment, but have a low ink-collecting ability.
  • the cleaning method has a low detergency and a high foaming property, so that they can be used in the drainage process. It caused foam trouble and resulted in only low grade deinked pulp.
  • the use of deinked pulp is restricted due to its dullness even at high whiteness (reduction of the amount of paperboard used below and below, reduction of the blending amount in newspapers, etc.) and use of bleaching agents to eliminate dullness The situation had to be increased.
  • the b value should be increased.
  • As a method for increasing the b-value a large amount of alcohol may be used, but it has the disadvantage of increasing stickiness (sticky material), increasing drainage load, and causing pulp embrittlement. There was no effective means.
  • the present inventor has previously proposed that a reaction product obtained by adding an alkylene oxide to a mixture of natural fats and oils and a polyhydric alcohol having three or more valencies is used as a deinking agent (Japanese Patent Application Laid-Open No. 60-239585). ).
  • the present inventors have shown excellent ink removal ability (high b value) in a method that is a compromise between the flotation method and the cleaning method, and have good reject bubble removal properties in the ⁇ -tension step.
  • high b value high b value
  • a deinking agent containing a specific non-ionic active agent as an essential component satisfies the above performance. Heading reached the present invention.
  • the present invention relates to a method of preparing a natural oil or fat or a reaction product obtained by reacting the natural oil or fat with glycerin in advance and a monovalent or divalent alcohol with the alcohol and the glycerin in the natural oil or fat.
  • the hydroxyl value (0HV) obtained by reacting with a molar ratio of 0.02 / 1 to 1/1, particularly preferably 0.05 / 1 to 0.48 / 1, is a monovalent alcohol.
  • L50 particularly preferably the former is 3-28 and the latter is 10-78, for the ester mixture of ethylenoxide and propylene oxide.
  • Ethylene oxide Z propylene oxide 0.5 to 4, particularly preferably 1.8 to 2.2 (molar ratio), in the case of monovalent alcohol, ethylene oxide added mole number of 5 to 200, divalent In the case of alcohol, the number of moles of ethylenoxide added is 10 to 400, particularly preferably the former is 10 to: 100, and the latter is 20 to 200. There is provided a deinking agent for the made so added was an ester mixture as an active Ingredient.
  • Examples of the monovalent alcohol used in the present invention include an alcohol having 1 to 24 carbon atoms, an alcohol 1, an unsaturated alcohol, and a cyclic alcohol.
  • Tanore, Nonanole, Decanol, Independence Knoll, Raurile Record, Myristi J Rea Record J, Setilea Rea Record, Stearia Rea Record Fatty alcohols, such as alcohol, alcohol, alcohol, alcohol, linoleic alcohol, etc., methyl alcohol, ethyl alcohol, propyl alcohol Synthetic alcohols such as isopropyl alcohol, isopropyl alcohol, 2-ethylhexanol, hexane 2-ole, 2-hexenole, cyclono nano-J, cyclodecanol, etc. And the like.
  • Examples of the divalent alcohol used in the present invention include “, —glycol, 1,2-diol, symmetric” monoglycol and cyclic 1,2-diol having 2 to 32 carbon atoms. Specifically, hexadecane-1,2-diol, octadecane-1,2-diol, eicosane-1,2-diol, ethylene glycol, propylene glycol, butanediol, hexanediol And cyclononan-1,2-diol, butanol-glycol, hexanoyl- ⁇ glycol, and the like.
  • Examples of the fats and oils used in the present invention include coconut oil, palm oil, olive oil, soybean oil, rapeseed oil, vegetable oils such as linseed oil, castor oil, and castor oil, terrestrial animal oils such as lard, tallow, bone oil, and the like.
  • Examples include marine animal oils such as sardine oil and nisin oil, and their hardened oils, semi-hardened oils, and recovered oils obtained in the purification process of these oils and fats. Further, monoester-diester produced by previously reacting these natural fats and oils with glycerin can also be used.
  • the molar ratio of the monovalent or divalent alcohol used to glycerin in natural fats and oils is 0.02 / 1 to 1Z1. It is also important that the ester mixture has a hydroxyl value (0HV) of 3 to 50 for monovalent alcohol and 10 to 150 for divalent alcohol.
  • glycerin in natural fats and oils refers to glycerol that forms natural fats and oils by binding to fatty acids. It means the sum of phosphorus and glycerin added and reacted further to modify the fat or oil.
  • the addition of ethylene oxide and propylene oxide can be carried out by mixing the two and adding them (random addition) or by sequentially adding them (block addition), but reducing foaming trouble. Considering the above, random addition is preferred.
  • the number of moles of ethylene oxide added is 5 to 200, and the dihydric alcohol is used. In the case of, it must be 10 to 400. Deviating from this range will reduce the ability of ink to be released from waste paper.
  • the rejection at the flotation pipe Defoamability deteriorates. Therefore, a deinking agent that obtains high b-value deinked pulp and has good foam-removing properties of the treatment liquid cannot be obtained unless a compound that satisfies the above conditions is used.
  • the method for the addition reaction of ethyleneoxide and pi-pyreneoxide is not particularly limited, and the reaction can be carried out under the conditions of a general alkylene oxide addition reaction to a compound having active hydrogen.
  • a general alkylene oxide addition reaction to a compound having active hydrogen.
  • a catalytic amount of an alkaline substance is added to the mixture to which the ester has been added, and this is done by reacting ethylene oxide and propylene oxide for several hours at about 100 to 200 at 1 to 3 kg / cm 2 (gauge). obtain.
  • the deinking agent of the present invention is excellent even when used in combination with a known deinking agent, for example, a higher alcohol sulfate, an alkylbenzene sulfonate, a higher alcohol, an ethylene oxide adduct of alkyl phenol or the like. Demonstrates performance.
  • the deinking agent of the present invention may be added to any one of the waste paper disintegration step, the high-concentration bleaching step, the pre-flotation step and each step.
  • the addition amount is preferably from 0.03 to 1.0% by weight based on the raw waste paper.
  • a 1.5 pound autoclave is charged with 100 g of coconut oil and 1.3 g of 2.4 g and 100 g of KOH, respectively, and heated up to 150 at a stirring speed of about 600 rpra. did.
  • the b value of the obtained pulp sheet was measured with a colorimeter.
  • the foam-removing property of the froth reject was measured.
  • Table 2 shows the molar ratio of ethylene oxide and propylene oxide for various deinking agents and the deinking performance results.
  • the b value of the obtained pulp sheet was measured with a colorimeter.
  • the foam removal property of the mouth treatment product was also measured.
  • Table 3 shows the number of moles of ethylene oxide added to each deinking agent and the deinking performance results.
  • Used magazine Z (50Z 50wt%) collected in the market is cut into 2 x 5 cm pieces, and a certain amount is put into a desktop disintegrator, in which water and caustic soda (based on raw material) 0.8%, silica Soda No. 3 (based on raw material) 2.0%, 30% hydrogen peroxide (based on raw material) 1.5%, deinking agent shown in Table 4 (based on raw material) 0.5%, pulp concentration 5% , 50 ripening treatment was performed at 50 for 2 hours. Then, water was added to dilute the pulp concentration to 1.0%, and the mixture was treated with 30:10 for 10 minutes. The pulp slurry after flotation was concentrated to a 6% concentration, and then diluted with water to 1% concentration to prepare a pulp sheet using a tapping machine.
  • the b value of the obtained pulp sheet was measured with a colorimeter.
  • the foam-removing properties of the froth-section product were also measured.
  • Table 4 shows the order of addition of alkylene oxide of glycerin ester and the results of deinking performance for various deinking agents.
  • the b value of the obtained pulp sheet was measured with a colorimeter.
  • the foam removal property of the flotation product was also measured.
  • the b value of the obtained pulp sheet was measured using a colorimeter.
  • the foam removal property of the treatment product was also measured. .
  • Table 6 shows the mole ratio of ethylene oxide and propylene oxide for various deinking agents and the deinking performance results.
  • the b value of the obtained pulp sheet was measured with a colorimeter.
  • the foam-removing property of the froth-section product was also measured.
  • Table 7 shows the number of moles of ethylene oxide added to various deinking agents and the deinking performance results.
  • Waste Zushi (50Z50wt%) recovered from the market is shredded to 2 x 5 cm, and a certain amount is put into a tabletop disintegrator.
  • aging treatment was performed at 50 ° C for 2 hours. Thereafter, adding water to dilute the pulp concentration to 1.0%, it was subjected to full Roteshi ® down for 10 minutes at 30 e C. Pulp rally after front-end
  • the b value of the obtained pulp sheet was measured with a colorimeter.
  • the foam removal property of the front-end treatment was also measured.
  • Table 8 shows the order of addition of alkylene oxide of glycerin ester and the results of deinking performance for various deinking agents.

Landscapes

  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Toxicology (AREA)
  • Paper (AREA)
  • Fats And Perfumes (AREA)

Abstract

Agent de désencrage comprenant comme ingrédient actif un mélange d'esters obtenu par la réaction d'une graisse naturelle, ou d'un produit de la réaction d'une graisse naturelle avec du glycérol, avec un alcool monovalent ou bivalent, dans une proportion de 0,02/1 - 1/1, cela représentant le rapport molaire de l'alcool au glycérol dans la graisse naturelle nécessaire pour la constitution d'un mélange, et par addition d'oxyde d'éthylène et d'oxyde de propylène audit mélange. Cet agent permet d'obtenir une pâte désencrée sans avoir les inconvénients du moussage et du manque d'éclat.
PCT/JP1990/001367 1990-10-24 1990-10-24 Agent de desencrage Ceased WO1992007996A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
US07/752,620 US5281358A (en) 1990-10-24 1990-10-24 Deinking agent
PCT/JP1990/001367 WO1992007996A1 (fr) 1990-10-24 1990-10-24 Agent de desencrage
CA 2047182 CA2047182C (fr) 1990-10-24 1990-10-24 Agent de desencrage
KR1019910701320A KR940007870B1 (ko) 1990-10-24 1990-10-24 탈묵제

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP1990/001367 WO1992007996A1 (fr) 1990-10-24 1990-10-24 Agent de desencrage

Publications (1)

Publication Number Publication Date
WO1992007996A1 true WO1992007996A1 (fr) 1992-05-14

Family

ID=13986773

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP1990/001367 Ceased WO1992007996A1 (fr) 1990-10-24 1990-10-24 Agent de desencrage

Country Status (3)

Country Link
KR (1) KR940007870B1 (fr)
CA (1) CA2047182C (fr)
WO (1) WO1992007996A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4910433B1 (fr) * 1963-04-22 1974-03-11
JPS5778497A (en) * 1980-11-04 1982-05-17 Kao Corp Detergent composition
JPS63227880A (ja) * 1987-03-12 1988-09-22 日本油脂株式会社 古紙再生用脱墨剤
JPH0112876B2 (fr) * 1986-04-11 1989-03-02 Kao Corp
JPH01111086A (ja) * 1987-10-21 1989-04-27 Kao Corp 古紙再生用脱墨剤
JPH0157194B2 (fr) * 1984-05-02 1989-12-04 Kao Corp
JPH0159393B2 (fr) * 1986-12-24 1989-12-18 Kao Corp

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4910433B1 (fr) * 1963-04-22 1974-03-11
JPS5778497A (en) * 1980-11-04 1982-05-17 Kao Corp Detergent composition
JPH0157194B2 (fr) * 1984-05-02 1989-12-04 Kao Corp
JPH0112876B2 (fr) * 1986-04-11 1989-03-02 Kao Corp
JPH0159393B2 (fr) * 1986-12-24 1989-12-18 Kao Corp
JPS63227880A (ja) * 1987-03-12 1988-09-22 日本油脂株式会社 古紙再生用脱墨剤
JPH01111086A (ja) * 1987-10-21 1989-04-27 Kao Corp 古紙再生用脱墨剤

Also Published As

Publication number Publication date
KR940007870B1 (ko) 1994-08-26
CA2047182C (fr) 2002-01-29
KR920702878A (ko) 1992-10-28
CA2047182A1 (fr) 1992-04-25

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