WO1995029288A1 - Adjuvant pour lessivage des pulpes - Google Patents

Adjuvant pour lessivage des pulpes Download PDF

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Publication number
WO1995029288A1
WO1995029288A1 PCT/JP1995/000806 JP9500806W WO9529288A1 WO 1995029288 A1 WO1995029288 A1 WO 1995029288A1 JP 9500806 W JP9500806 W JP 9500806W WO 9529288 A1 WO9529288 A1 WO 9529288A1
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WO
WIPO (PCT)
Prior art keywords
aqueous dispersion
rosin
anthraquinones
acid
dispersion
Prior art date
Application number
PCT/JP1995/000806
Other languages
English (en)
Japanese (ja)
Inventor
Syuji Matsushima
Yorishige Matsuba
Original Assignee
Harima Chemicals, Inc.
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 Harima Chemicals, Inc. filed Critical Harima Chemicals, Inc.
Publication of WO1995029288A1 publication Critical patent/WO1995029288A1/fr

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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
    • D21C3/00—Pulping cellulose-containing materials
    • D21C3/22—Other features of pulping processes
    • D21C3/222—Use of compounds accelerating the pulping processes

Definitions

  • the present invention provides a widely used anthraquinone as a pulp digestion aid, which provides a stable aqueous dispersion for enhancing workability in use. It is something. Background art
  • the present inventors aim to prepare a stable, high-concentration aqueous dispersion of anthraquinones as an anthraquinone-based pulp digestion aid.
  • the surface of anthraquinone particles was treated with a rosin metal salt, and this was treated with a non-colored material such as a polyoxyethylene rosin ester.
  • the inventors have found that when dispersed in water together with an on-active surfactant, the stability of the dispersion system is extremely improved, and the present invention has been completed.
  • Anthraquinones are anthraquinone, 1,4-dihydroanthraquinone, and 1,4-dihydroanthraquinone , 1, 4, 4a, 9a — Tetrahydroanthraquinone, 1, 2, 3, 3, 4 — Tetrahydroanthraquinone and A It is a generic term for known anthraquinones including ancethrone.
  • the aqueous dispersion of anthraquinones is Can contain anthraquinones at a concentration of 1 to 99% by weight, but the range of 25 to 75% by weight is practically preferable. Concentrations below 25% by weight reduce the economic merit due to the expense of transport and storage, and above 75% by weight increase the viscosity of the dispersion. At the same time, stability may be impaired.
  • the particles of anthraquinones be pulverized to 50 ⁇ or less, and preferably to ⁇ or less.
  • Either dry pulverization or wet pulverization can be used for pulverization, but wet pulverization is preferred for preservation of the working environment such as prevention of dust scattering.
  • Common milling equipment such as ball mills, colloid mills, attritors, kneaders, and homomixers, or high-pressure emulsifiers are used as mills. However, these devices can be used together.
  • the rosin used in the present invention includes gamurodin obtained from raw pine resin and resin acid content in tall oil obtained from pulp digestion waste liquid. There are slight differences in the chemical composition, such as tollogin obtained by separating pulp from distillate by distillation, or pododine obtained by extraction from pine. However, all can be used in the present invention. In addition, a chemically modified product of such a mouth resin (such as a disproportionated rosin, a polymerized rosin, a malein rosin, or a hydrogenated rosin) can also be used in the present invention.
  • a chemically modified product of such a mouth resin such as a disproportionated rosin, a polymerized rosin, a malein rosin, or a hydrogenated rosin
  • the rosin is a natural resin derived from pine crab, including gamlodin, tritolone rosin, and woodlodine, and is abietic acid, dehydroabietic acid, and tetrahedral acid.
  • Resin acids including lahydroabietic acid, neoabietic acid, norastrinic acid, levopimaric acid, pimaric acid, isopimaric acid, and sandaracopimalic acid It is also suitable for the practice of the present invention that it has at least one of its chemical modifications.
  • an appropriate surface treatment can be considered.
  • a method was used in which the box was added to a dispersion of anthraquinones having a temperature equal to or higher than its melting point and cooled, Due to the strong interfacial interaction in the liquid layer, wax forms sox emulsion rather than fuses to the anthraquinone compound particles.
  • a method of adsorbing a surface-active substance to anthraquinone-like particles and modifying the surface-active substance is effective.
  • a water-soluble rosin stone that is, a rosin sodium salt or a rosin sodium salt
  • a specific surface treatment is to disperse anthraquinones and rosin stones in water, 10 o.
  • a water-soluble polyvalent metal salt such as a molar range of sodium chloride, magnesium chloride or zinc chloride.
  • the purpose of the present invention is determined by a method in which a metathesis reaction occurs and poorly water-soluble rosin calcium salts and the like are precipitated on the surface of the anthraquinone-based particles. Is described as being achieved.
  • non-ionic surfactants are effective for dispersing surface-treated anthraquinone-type particles.
  • a compound obtained by adding 1 to 50 moles, or 15 to 30 moles, of ethylene oxide to 1 mole of rosin has excellent dispersion stability. was released.
  • water-soluble polymers examples include starches, various polymers derived from seaweed (such as sodium alginate), plant gums, and fermented polysaccharides (pullulane, Dextran), animal proteins (mica, casein), celluloses (canolepoxime tylsenolose, hydroxyshetylcellulose), polyvinizolea coco Lire, polyethylene glycol, polypropylene glycol, polyacrylamide, polyria Poly (acrylic acid), poly (vinyl pyrrolidone), water-soluble alkyd resin, poly (vinyl ether), poly (maleic acid copolymer), poly (ethylene imide) Examples include sodium phosphate and water glass.
  • the aqueous dispersion of anthraquinones of the present invention has a high concentration and excellent long-term storage stability.
  • the concentration of 50% of A down scan la-board emissions include, at a temperature ranging from room temperature or et 5 0 e C, it is stably dispersed for over 1 force month.
  • aqueous dispersion of anthraquinones of the present invention is used in the pulp digestion step, it is preferably used in an amount of 0.01 to 5% with respect to the raw material lignocellulose. In this case, 0.001 to 0.1% is added.
  • Pulping methods include alcohol pulp production methods such as the Kraft method, the soda method, and the soda carbonate method, as well as the sulfite method, the bisulfite method, and the alkaline sulfite method.
  • Known cooking conditions such as salt method, semi-chemical pulp method, chemical groundwood method, polysulfide method, hydrogen peroxide method, etc. can be used. .
  • the added anthraquinones are uniformly dispersed in the reaction system, promoting the elution of lignin and increasing the digestion rate, thereby saving cooking chemicals and steam. It also contributes to improving the yield of pulp and the quality of pulp.
  • the stainless steel ball agitator (described above) was used as the dispersing device.
  • Anthraquinone 100.0.Og was charged to an attritor, and gamurodin sodium salt (solid content 50%) was added to the attritor.
  • Ethylene oxide 30-mole added rosin (Harima Kasei Co., Ltd.) “REO — 30”) was added at 5.0 Og, and 60.0 g of distilled water was added.
  • the mixture was stirred at 25 ° C. for one hour under a predetermined dispersion condition to obtain a stirred liquid. After the obtained stirred solution was heated to 50 ° C, a solution of 1.0 g of calcium chloride dissolved in 10 g of distilled water was slowly added dropwise. .
  • an aqueous solution obtained by dissolving 5.0 g of polyvinyl alcohol in a predetermined amount of distilled water was added.
  • the solid content of the obtained dispersion was 50.0%
  • the viscosity was 300 mPas
  • the average particle size of anthraquinone was 1.5 ⁇ m. .
  • Example 2 Using a commercially available anionic surfactant in place of the metal salt, the same dispersing operation as in Example 1 was carried out. The properties and stability are shown in Table 1 together with the results of Examples 1 and 2. In addition, the dispersion stability was evaluated on a five-point scale ( ⁇ , ⁇ , ⁇ , x, XX), from ⁇ with good dispersion to XX with no effect.
  • Example 3 As a dispersing device, an attritor using a stainless steel ball (described above) was used. Anthraquinone 100 .Og was charged into a writer, and the mixture was mixed with non-uniform hydrin sodium salt (Harima Chemical Co., Ltd. G — 25 KJ active ingredient (25%) in 10 .Og and ethylenoxide 15 mol-added rosin (Hachierima Kasei Co., Ltd.) (REO-15)) was added at 5.0 g and distilled water was added at 60.0 g.
  • non-uniform hydrin sodium salt Hardima Chemical Co., Ltd. G — 25 KJ active ingredient (25%) in 10 .Og and ethylenoxide 15 mol-added rosin (Hachudima Kasei Co., Ltd.) (REO-15)
  • the mixture was stirred for 1 hour under a constant dispersion condition at 25 eC to obtain a stirred liquid.
  • After heating the obtained stirring liquid at 50 ° C slowly dissolve a solution of 1.0 g of calcium chloride in 10.0 g of distilled water. Dropped. While stirring the stirring solution for one hour, a water solution obtained by dissolving 5.0 g of polyvinyl alcohol in a predetermined amount of distilled water was added.
  • the solid content of the obtained dispersion liquid was 50.4%, the viscosity was 325 mPa, and the average particle size of anthraquinone was 1.5 ⁇ m.
  • Example 2 Using a commercially available nonionic surfactant in place of the ethylene oxide-added rosin, the same dispersion operation as in Example 1 was performed, and the dispersion obtained in each case was obtained.
  • the properties and stability of the liquid are shown in Table 2 along with the results of Examples 1 and 3.
  • the evaluation was performed in five stages ( ⁇ , ⁇ , ⁇ , X, XX) from ⁇ with good dispersion stability to XX with no effect at all.
  • Example 1 a dispersion operation was performed in the same manner as in Example 1 except that calcium chloride was not added.Properties and stability of the obtained dispersion liquid Are shown in Table 3 in comparison with the results of Example 1. Note that the dispersion stability is good ⁇ to XX where no effect is obtained at all.
  • anthraquinones particles Unless the surface treatment of the anthraquinones particles is performed by adding an alkaline earth metal salt such as calcium chloride, the particles settled during the standing and storage. However, they were aggregated to form a hard cake.
  • an alkaline earth metal salt such as calcium chloride
  • a stainless steel ball writer (described above) was used as a dispersing device. Anthraquinone 100 g was added to an attritor, and the mixture was mixed with uneven potassium hydroxide salt (Harima Chemical Co., Ltd. Disk T
  • Example 2 the same operation as in Example 1 was performed. A solution of 1.0 g of magnesium chloride in 10.0 g of distilled water was slowly dropped into the obtained stirring liquid. While stirring the stirring solution for 1 hour, an aqueous solution in which 5.0 g of polyacrylamide was dissolved in a predetermined amount of distilled water was added. The solid content of the obtained dispersion was 50.3%, the viscosity was 1,600 mPa.S, and the average particle size of anthraquinone was 1.6 ⁇ m.
  • the procedure up to obtaining the stirring liquid was performed in exactly the same manner as in Example 1.
  • a solution prepared by dissolving 1.0 g of zinc chloride in 10.0 g of distilled water was slowly added dropwise to the obtained stirring liquid. While the stirring liquid was further stirred for 1 hour, an aqueous solution in which 1.0 g of hydroxyshethyl cellulose was dissolved in a predetermined amount of distilled water was added.
  • the solid content of the obtained dispersion was 48.9%, the viscosity was 2900 mPas, and the average particle size of anthraquinone was 1.7 ⁇ m. .
  • a stainless steel ball writer (described above) was used as a dispersing device. Anthraquinone in the attritor Og was added to the mixture, and the mixture was mixed with an unbalanced solution of potassium and potassium salt ("Bandice T-125K” manufactured by Harima Kasei Co., Ltd.). 5%) was added with 10 .Og and 5.0 mol of ethylene chloride (REO — 15) manufactured by Norima Kasei Co., Ltd. Further, 160.0 Og of distilled water was added. In 25, the mixture was stirred for 1 hour under a predetermined dispersion condition to obtain a stirring liquid.
  • a solution prepared by dissolving 1.0 g of calcium chloride in 10.0 g of distilled water was slowly added dropwise to the obtained stirring liquid.
  • An aqueous solution in which 5.0 g of polyvinyl alcohol was dissolved in a predetermined amount of distilled water was added while the stirring liquid was further stirred for 1 hour.
  • the solid content of the obtained dispersion was 48.8%, the viscosity was 135 mPas, and the average particle size of anthraquinone was 3.5 ⁇ m.
  • a stainless steel ball writer (described above) was used as a dispersing device.
  • An attritor was charged with 50.0 g of anthraquinone, and the resulting mixture was mixed with a non-uniform toluene sorbitan salt (NO, manufactured by Lima Kasei Co., Ltd.).
  • NO non-uniform toluene sorbitan salt
  • "Non-disc T-125KJ, active ingredient 25%) was added to 5.Og and ethylenoxide 15-mol added rosin (Harima Chemical Co., Ltd.) 2.5 g of “RE 0-15”), and 11.0 g of distilled water.
  • the mixture was stirred for 1 hour under predetermined dispersion conditions to obtain a stirred liquid.
  • the obtained stirring liquid The obtained stirring liquid
  • a solution prepared by dissolving 1.0 g of sodium chloride in 10.0 g of distilled water was slowly added dropwise. While stirring the stirring liquid for one hour, the polyvin
  • a stainless steel ball writer (described above) was used as the dispersing device. Anthrone was charged with Anthrone 100.Og into an attritor, and the mixture was then mixed with non-uniform hiroshima potassium salt (Nonday manufactured by Harima Chemicals, Inc.). G — 25 Kj, 25% active ingredient) with 10 .Og and 30 moles of ethylene oxide (Remo Chemical Co., Ltd. 0 — 30 ”)), and 5.00 g of distilled water was added. In 25, the mixture was stirred for 1 hour under predetermined dispersion conditions to obtain a stirred liquid. A solution prepared by dissolving 1.0 g of calcium chloride in 10.0 g of distilled water was slowly dropped into the obtained stirring liquid.
  • a stirring liquid was obtained by performing the same operation as in Example 9 except that the amount of distilled water used was changed to 22.Og instead of 11.7 g. .
  • a solution of 1.0 g of chlorinated sodium in 10.0 g of distilled water was slowly added dropwise to the obtained stirring liquid. While stirring the stirring solution for one hour, an aqueous solution in which 2.5 g of polyvinyl alcohol was dissolved in a predetermined amount of distilled water was added.
  • the solid content of the obtained dispersion was 61.0%, the viscosity was 7400 mPas, and the average particle size of anthraquinone was 1.7 jum. there were .
  • anthraquinones used as a pulp digestion aid in water at a high concentration
  • the anthraquinones must be dispersed. It is extremely effective to carry out dispersion treatment in the presence of a polyvalent metal salt-treated rosin, and by doing so, the metal salt of rosin can be absorbed.
  • Surface treatment is performed to adsorb onto the surface of the raquinone-type particles to precipitate rosin-alkaline earth-metal salts by metathesis reaction with alkaline earth metals. It is understood that.
  • a nonionic surfactant is used. The steles are particularly effective, and The combined use of a water-soluble polymer such as alcohol further improves the stability.

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Abstract

La présente invention concerne une dispersion d'anthraquinone utilisable comme adjuvant pour le lessivage des pulpes. Cet adjuvant est obtenu en dispersant dans l'eau une anthraquinone en présence d'un métal polyvalent traité à la colophane, ce qui permet d'améliorer la dispersabilité de l'anthraquinone et en présence d'un agent tensioactif hydrosoluble ou d'un polymère.
PCT/JP1995/000806 1994-04-26 1995-04-25 Adjuvant pour lessivage des pulpes WO1995029288A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP8841794 1994-04-26
JP6/88417 1994-04-26

Publications (1)

Publication Number Publication Date
WO1995029288A1 true WO1995029288A1 (fr) 1995-11-02

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10611926B2 (en) 2017-06-30 2020-04-07 Kraton Polymers Llc Light rosin ester compositions and methods of making same

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54138603A (en) * 1978-04-15 1979-10-27 Bayer Ag Dispersion used in pulp making
JPS556585A (en) * 1978-06-21 1980-01-18 Bayer Ag Reagent for pulp making
JPS564792A (en) * 1979-06-25 1981-01-19 Bayer Ag Production of prepared agent containing organic compound having keto and * or hydroxyl group
JPS5696981A (en) * 1979-12-17 1981-08-05 Bayer Ag Dinitroanthraquinone dispersion and production and use thereof
JPS6197492A (ja) * 1984-10-18 1986-05-15 川崎化成工業株式会社 高濃度パルプ蒸解助剤水溶液
JPS61137836A (ja) * 1984-12-10 1986-06-25 Kawasaki Kasei Chem Ltd １，４，４ａ，９ａ−テトラヒドロアントラキノン類の造粒方法
JPS61155349A (ja) * 1984-12-21 1986-07-15 ソソシエテ　アトケム 木材のアルカリ蒸解浴用アントラキノン分散物と、その使用方法

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS54138603A (en) * 1978-04-15 1979-10-27 Bayer Ag Dispersion used in pulp making
JPS556585A (en) * 1978-06-21 1980-01-18 Bayer Ag Reagent for pulp making
JPS564792A (en) * 1979-06-25 1981-01-19 Bayer Ag Production of prepared agent containing organic compound having keto and * or hydroxyl group
JPS5696981A (en) * 1979-12-17 1981-08-05 Bayer Ag Dinitroanthraquinone dispersion and production and use thereof
JPS6197492A (ja) * 1984-10-18 1986-05-15 川崎化成工業株式会社 高濃度パルプ蒸解助剤水溶液
JPS61137836A (ja) * 1984-12-10 1986-06-25 Kawasaki Kasei Chem Ltd １，４，４ａ，９ａ−テトラヒドロアントラキノン類の造粒方法
JPS61155349A (ja) * 1984-12-21 1986-07-15 ソソシエテ　アトケム 木材のアルカリ蒸解浴用アントラキノン分散物と、その使用方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10611926B2 (en) 2017-06-30 2020-04-07 Kraton Polymers Llc Light rosin ester compositions and methods of making same
US11111411B2 (en) 2017-06-30 2021-09-07 Kraton Polymers Llc Light color rosin ester compositions and methods of making same

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