CN101413227A - Cotton pulp steam boiling additive - Google Patents
Cotton pulp steam boiling additive Download PDFInfo
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- CN101413227A CN101413227A CNA2008102331997A CN200810233199A CN101413227A CN 101413227 A CN101413227 A CN 101413227A CN A2008102331997 A CNA2008102331997 A CN A2008102331997A CN 200810233199 A CN200810233199 A CN 200810233199A CN 101413227 A CN101413227 A CN 101413227A
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Abstract
The invention discloses a cotton pulp cooking additive, which consists of the following raw materials in portion by weight: 4 to 12 portions of anthraquinone, 8 to 18 portions of sodium hydrosulfite, 18 to 28 portions of sodium alkyl sulfonate, 18 to 28 portions of sodium carbonate, and 28 to 38 portions of anhydrous sodium sulfate or/and anhydrous sodium sulfite. The cotton pulp cooking additive can improve the reaction performance in the cooking process of cotton linters, reduce using amount of alkali for cooking, shorten cooking time, improve content of alpha-cellulose, improve yield of pulps, reduce chroma and COD value of a black liquor, reduce corrosion of equipment, lighten environmental pollution, reduce production cost, and has good application prospect and popularization value.
Description
Technical field
The present invention relates to a kind of pulping chemistry auxiliary agent, particularly a kind of cotton pulp steam boiling additive.
Background technology
The cotton pulp dregs of rice are main raw materials of producing viscose.In recent years, along with viscose developing rapidly in textile industry, the market demand of the cotton pulp dregs of rice also constantly promotes.
The cotton pulp dregs of rice are to be raw material with the cotton linter, through get the raw materials ready, three basic process steps preparations of boiling, purification and getting.In pulping process, digesting assistant can influence the speed and degree, the quality that becomes oar and yield and follow-up purification effects etc. of delignification to a great extent.At present, the pulp production industry generally adopts vulcanized sodium, anthraquinone and derivative thereof as digesting assistant, but exists cooking liquor slower to the raw material infiltration, and the decomposition and the dissolution time of lignin are longer; The lignin that removes, colloid, resin etc. are easily adsorbed once again by cellulose, and the difficult rinsing of slurry influences the quality and the yield of pulping; Equipment is perishable, and environmental pollution is big, problems such as production cost height.
Summary of the invention
In view of this, deficiency at the prior art existence, the object of the present invention is to provide a kind of cotton pulp steam boiling additive, can improve the reactivity worth in the cotton linter digestion process, reduce the boiling alkali charge, shorten digestion time, improve pulp quality and yield, reduce the colourity and the COD value of black liquor, alleviate environmental pollution, reduce production costs.
For reaching this purpose, cotton pulp steam boiling additive of the present invention, be made up of following raw materials in portion by weight: 4～12 parts of anthraquinones, 8～18 parts of sodium dithionites, 18～28 parts of sodium alkyl sulfonates, 18～28 parts in sodium carbonate, anhydrous sodium sulfate are or/and 28～38 parts of anhydrous sodium sulfites;
Further, the weight portion proportioning of each raw material is: 5～10 parts of anthraquinones, 10～15 parts of sodium dithionites, 20～25 parts of sodium alkyl sulfonates, 20～25 parts in sodium carbonate, anhydrous sodium sulfate are or/and 30～35 parts of anhydrous sodium sulfites;
Further, the weight portion proportioning of each raw material is: 8 parts of anthraquinones, 12 parts of sodium dithionites, 22 parts of sodium alkyl sulfonates, 22 parts in sodium carbonate, anhydrous sodium sulfate are or/and 32 parts of anhydrous sodium sulfites;
Further, described sodium alkyl sulfonate is selected from one or more of dodecyl sodium sulfate, tridecyl sodium sulfonate, myristyl sodium sulfonate, pentadecyl sodium sulfonate and sodium cetanesulfonate.
Beneficial effect of the present invention is: The present invention be directed to the cotton pulp steam boiling additive that cotton linter fiber structure and characteristic are specialized in exploitation, Compositional type digesting assistant for function admirable, it has overcome the deficiency of single auxiliary agent, the advantage that has both multiple auxiliary agent: (1) has the protection carbohydrate, quickens the ability of delignification, anthraquinone can be oxidized to carboxyl with the terminal aldehyde radical of carbohydrate, thereby effectively suppress peeling reaction, reduce cellulose degradation, obviously improve into pulp yield; Simultaneously, anthraquinone can make lignin degradation, thereby effectively promotes removing of residual lignin in intercellular layer lignin and the cell membrane, accelerates the speed of delignification, shortens digestion time; (2) has the ability of modification anthraquinone, sodium dithionite can reduce anthraquinone at a lower temperature, obtain modification anthraquinone soluble in water, overcome the shortcoming that anthraquinone is insoluble in cooking liquor, is difficult to further bring into play its performance, have good dissolubility and permeability, more can bring into play anthraquinone protection carbohydrate, quicken the function of delignification; (3) have very strong wetting, infiltration, diffusivity, can improve the effect of impregnation may of cooking liquor to raw material, promote the infiltration of cooking liquor and evenly diffusion, quicken and promote colloid to dissolve and delignification, thereby reduce the boiling alkali charge, shorten digestion time, improve the boiling uniformity, improve digester yield, reduce the colourity and the COD value of black liquor; (4) has the macromolecule complexing power, active group in the fibrous raw material and metal ion can be carried out the complexing shielding, reduce the redox reaction of degradation product, prevent active group and lignin generation condensation reaction, improve the presentation quality of cooking liquor, improve pulp brightness; (5) have the high surfaces activity, the lignin that can will remove, pectin etc. are distributed in the cooking liquor equably, prevent that it from being adsorbed by cellulose once again, and the easy rinsing of slurry can reduce the rinsing water amount; (6) has ability high temperature resistant for a long time, anti-cooking liquor;
Confirm through commerical test, cotton pulp steam boiling additive of the present invention effect in the cotton pulp dregs of rice are produced is obvious, can improve the reactivity worth in the cotton linter digestion process, reduce boiling alkali charge 2%, improve alpha cellulose content 0.5～1%, improve pulp yield 1.0～1.2% (reducing cotton linter consumption 1.0～1.2%), reduce black liquor colourity 8～12%, reduce black liquor COD value 10%, reduce equipment corrosion, alleviate environmental pollution, reduce production costs, producing pulp per ton can increase economic benefit and reach more than 60 yuan, has a good application prospect and promotional value.
The specific embodiment
In order to make the purpose, technical solutions and advantages of the present invention clearer, will be described in detail the preferred embodiments of the present invention below.
Embodiment one
The weight proportion of each raw material is: anthraquinone 40g, sodium dithionite 80g, dodecyl sodium sulfate 180g, sodium carbonate 180g, anhydrous sodium sulfate 280g;
Embodiment two
The weight proportion of each raw material is: anthraquinone 50g, sodium dithionite 100g, tridecyl sodium sulfonate 200g, sodium carbonate 200g, anhydrous sodium sulfite 300g;
Embodiment three
The weight proportion of each raw material is: anthraquinone 80g, sodium dithionite 120g, myristyl sodium sulfonate 220g, sodium carbonate 220g, anhydrous sodium sulfate 320g;
Embodiment four
The weight proportion of each raw material is: anthraquinone 100g, sodium dithionite 150g, pentadecyl sodium sulfonate 250g, sodium carbonate 250g, anhydrous sodium sulfite 350g;
Embodiment five
The weight proportion of each raw material is: anthraquinone 120g, sodium dithionite 180g, sodium cetanesulfonate 280g, sodium carbonate 280g, anhydrous sodium sulfate 180g, anhydrous sodium sulfite 200g;
Get each raw material by embodiment one to embodiment five described weight proportion, mix, promptly make cotton pulp steam boiling additive of the present invention; Product is white, nontoxic powder, is soluble in alkali lye and water, and the pH value is 7～9; In the alkaline medium of temperature below 120 ℃, be difficult for to decompose, be difficult for oxidized, can be in the alkaline medium of temperature more than 145 ℃ by bromination, sulfonation, nitrated.
Cotton pulp steam boiling additive of the present invention is easy to use, need not change original digesting technoloy, directly adds uses such as spherical digester or lye tank (vat) and gets final product, and consumption is controlled at 0.3～0.35% of cotton linter consumption.
Explanation is at last, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although by invention has been described with reference to the preferred embodiments of the present invention, but those of ordinary skill in the art is to be understood that, can make various changes to it in the form and details, and the spirit and scope of the present invention that do not depart from appended claims and limited.
Claims (4)
1, a kind of cotton pulp steam boiling additive is characterized in that: be made up of following raw materials in portion by weight: 4～12 parts of anthraquinones, 8～18 parts of sodium dithionites, 18～28 parts of sodium alkyl sulfonates, 18～28 parts in sodium carbonate, anhydrous sodium sulfate are or/and 28～38 parts of anhydrous sodium sulfites.
2, cotton pulp steam boiling additive according to claim 1 is characterized in that: the weight portion proportioning of each raw material is: 5～10 parts of anthraquinones, 10～15 parts of sodium dithionites, 20～25 parts of sodium alkyl sulfonates, 20～25 parts in sodium carbonate, anhydrous sodium sulfate are or/and 30～35 parts of anhydrous sodium sulfites.
3, cotton pulp steam boiling additive according to claim 1 is characterized in that: the weight portion proportioning of each raw material is: 8 parts of anthraquinones, 12 parts of sodium dithionites, 22 parts of sodium alkyl sulfonates, 22 parts in sodium carbonate, anhydrous sodium sulfate are or/and 32 parts of anhydrous sodium sulfites.
4, according to claim 1,2 or 3 described cotton pulp steam boiling additives, it is characterized in that: described sodium alkyl sulfonate is selected from one or more of dodecyl sodium sulfate, tridecyl sodium sulfonate, myristyl sodium sulfonate, pentadecyl sodium sulfonate and sodium cetanesulfonate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102331997A CN101413227B (en) | 2008-12-03 | 2008-12-03 | Cotton pulp steam boiling additive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102331997A CN101413227B (en) | 2008-12-03 | 2008-12-03 | Cotton pulp steam boiling additive |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101413227A true CN101413227A (en) | 2009-04-22 |
| CN101413227B CN101413227B (en) | 2010-10-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008102331997A Expired - Fee Related CN101413227B (en) | 2008-12-03 | 2008-12-03 | Cotton pulp steam boiling additive |
Country Status (1)
| Country | Link |
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| CN (1) | CN101413227B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102154869A (en) * | 2010-12-28 | 2011-08-17 | 宜宾长毅浆粕有限责任公司 | Cooking aid for preparing chemical fiber pulp |
| CN102587180A (en) * | 2012-01-13 | 2012-07-18 | 大连工业大学 | Alkyl sulfonate cooking auxiliary agent |
| EA020360B1 (en) * | 2012-01-19 | 2014-10-30 | Джамал Вейс оглы Мамедов | Reactive cellulose and process for production thereof |
| CN108060598A (en) * | 2017-12-11 | 2018-05-22 | 安徽比伦生活用纸有限公司 | A kind of pulping agents used in paper for daily use processing |
| CN111379184A (en) * | 2018-12-28 | 2020-07-07 | 安徽雪龙纤维科技股份有限公司 | Cotton pulp for producing cellulose acetate butyrate and preparation method thereof |
| CN112080957A (en) * | 2020-09-18 | 2020-12-15 | 广东鼎丰纸业有限公司 | High-efficiency caustic soda anthraquinone cooking aid and preparation method thereof |
-
2008
- 2008-12-03 CN CN2008102331997A patent/CN101413227B/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102154869A (en) * | 2010-12-28 | 2011-08-17 | 宜宾长毅浆粕有限责任公司 | Cooking aid for preparing chemical fiber pulp |
| CN102154869B (en) * | 2010-12-28 | 2013-04-10 | 宜宾长毅浆粕有限责任公司 | Cooking aid for preparing chemical fiber pulp |
| CN102587180A (en) * | 2012-01-13 | 2012-07-18 | 大连工业大学 | Alkyl sulfonate cooking auxiliary agent |
| CN102587180B (en) * | 2012-01-13 | 2014-02-19 | 大连工业大学 | Alkyl sulfonate cooking auxiliary agent |
| EA020360B1 (en) * | 2012-01-19 | 2014-10-30 | Джамал Вейс оглы Мамедов | Reactive cellulose and process for production thereof |
| CN108060598A (en) * | 2017-12-11 | 2018-05-22 | 安徽比伦生活用纸有限公司 | A kind of pulping agents used in paper for daily use processing |
| CN111379184A (en) * | 2018-12-28 | 2020-07-07 | 安徽雪龙纤维科技股份有限公司 | Cotton pulp for producing cellulose acetate butyrate and preparation method thereof |
| CN111379184B (en) * | 2018-12-28 | 2022-03-15 | 安徽雪龙纤维科技股份有限公司 | Cotton pulp for producing cellulose acetate butyrate and preparation method thereof |
| CN112080957A (en) * | 2020-09-18 | 2020-12-15 | 广东鼎丰纸业有限公司 | High-efficiency caustic soda anthraquinone cooking aid and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| CN101413227B (en) | 2010-10-20 |
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Granted publication date: 20101020 Termination date: 20101203 |