CN1035522C - Separating method of vegetable cellulose and non-cellulose - Google Patents
Separating method of vegetable cellulose and non-cellulose Download PDFInfo
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- CN1035522C CN1035522C CN89100671A CN89100671A CN1035522C CN 1035522 C CN1035522 C CN 1035522C CN 89100671 A CN89100671 A CN 89100671A CN 89100671 A CN89100671 A CN 89100671A CN 1035522 C CN1035522 C CN 1035522C
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Abstract
The present invention relates to the fields of textile industry and paper-making industry, particularly to a method for separating plant cellulose and noncellulose, which is characterized in that one-level boiling off is adopted in the method; the bath ratio is from 1 to (8 to 10); the temperature is from 95 to 110 DEG C; the normal pressure is 1 kg/cm<2>; the time is from 30 to 50 minutes; the dosage of sodium hydroxide and the dosage of auxiliary agents respectively account for 4 to 6 wt% of raw materials and 2.5 to 3.0 wt% of raw materials. The present invention has the advantages of simple technology, high product yield, high product quality, short boiling off time and low energy consumption.
Description
The present invention relates to weaving, paper industry field, particularly a kind ofly be used for string and come unstuck the method that promptly adopts the caustic soda boiling-off, plant cellulose is separated with non-cellulose.
In " the main attack object of opinion China grass degumming " (ramie textile academic discussion paper was reprinted 1984 the 8th phase P22-26 of textile journal in 1984) literary composition, once introduced a kind of technology that removes hemicellulose in the ramie and other non-cellulose, its technological process is: raw ramie → sour prehydrolysis → rinsing → first order boiling-off → rinsing → second level boiling-off → rinsing → post processing.Its two-stage boiling-off technology major parameter is: 129 ℃ of temperature, pressure 2 kilograms per centimeter
2(promptly 1.96 * 10
5Pa), caustic soda, auxiliary agent sodium phosphate trimer consumption are respectively about 16%, 2% of raw material, and about the 4 hours boiling-off time of accumulative total, the product row yielding is about 62% of a raw material, and the product residual gum content is about 2%.As from the foregoing, this technology exist the production cycle long, caustic soda consumption big, product row yielding and quality is lower, production cost is higher defective.
The objective of the invention is defective, provide that a kind of technology is simple, less energy consumption, product row yielding and quality is higher, production cost is lower and do not need to drop into the plant cellulose of new equipment and the separation method of non-cellulose at above-mentioned technology.
The object of the present invention is achieved like this: use the caustic soda boiling-off, it is characterized in that adopting the one-level boiling-off, the auxiliary agent that adopts is made into by surfactant, anthraquinone, sodium sulphate, and this boiling-off technological parameter is: bath raio 1: 8-10, temperature 95-110 ℃, pressure is normal pressure～9.80665 * 10
4Pa, time 30-50 minute, NaOH, auxiliary dosage accounted for the plant fiber material percentage by weight and are respectively 4-6,2.5-3.0.
Purpose of the present invention can also realize like this: described surfactant can be an anionic, such as the Sulfonates activating agent.Can be the betaines of amphoteric ion type also, such as dodecyldimethylammonium hydroxide inner salt.
In the boiling-off process, correctly select temperature and pressure for use, and the selection of auxiliary agent and consumption, for improving row yielding and quality, consumption such as reduction caustic soda are very important.At present, ramie textile producer is at 129 ℃ of high temperature, high pressure 1.96 * 10
5Pa, to select sodium phosphate trimer for use be under the condition of auxiliary agent, and the caustic soda consumption is about 16%, about 4 hours boiling-off time.And the present invention is owing to select the auxiliary agent that is made into by surfactant, anthraquinone and sodium sulphate for use, thus can be at bath raio 1: 8-10, and temperature 95-110 ℃, pressure is normal pressure～9.80665 * 10
4Pa, time 30-50 minute, NaOH, auxiliary dosage account for the plant fiber material percentage by weight, be respectively under the condition of 4-6,2.5-3.0, finish the boiling-off process that removes non-cellulose of ramie, in addition, also can finish the boiling-off process that other string removes non-cellulose with process conditions of the present invention, and product row yielding height, the non-cellulose content of material is low, and economic benefit is considerable.
The effect of auxiliary agent of the present invention in the boiling-off process: surfactant is an example with the anionic Sulfonates: in the alkaline solution of the high PH of high temperature, because it can significantly reduce the surface tension and the interfacial tension of solution, improve solubilising, infiltration, emulsification, dispersion, the wetting and foaming capacity of solution, so in the separation process of cellulose and non-cellulose, play crucial facilitation.Anthraquinone can be accelerated the dissolving of non-cellulose material under alkaline solution and higher temperature conditions, and reduces the consumption of caustic soda.Sodium sulphate in alkaline solution, also can reduce solution surface tension, improve fiber for solution absorbs speed and adsorbance.Because the effect respectively and the cooperative effect of above three kinds of materials, so the alkaline solution of fluidized state can promptly be penetrated in the wall interbed and cell membrane of cell of string, adhesion between the fiber is weakened, make character be not so good as the stable non-cellulose materials such as hemicellulose of cellulose, in the alkaline solution of the high PH of this high temperature, produce peeling reaction rapidly, the generation basic hydrolysis that continues is dissolved among the solution.And because the synergy of auxiliary agent, the non-cellulose material after the dissolving is suspended in the solution, is not easy to be adsorbed onto fiber again and gets on.
Advantage of the present invention is, owing to adopted the novel boiling-off auxiliary agent that is made into by surfactant, anthraquinone, sodium sulphate, thereby: one, shortened technological process, promptly save rinsing totally four procedures after sour prehydrolysis, rinsing and a boiling-off and the boiling-off: they are two years old, shortened the boiling-off time, reduced energy consumption, promptly changing the boiling-off technology of High Temperature High Pressure about 4 hours is 95-110 ℃, normal pressure～9.30665 * 10
4Pa, the boiling-off technology about 40 minutes, and save caustic soda consumption more than 60%; Its three, improved the row yielding and the quality of product, economize in raw materials about 15% than prior art ton product, promptly the product row yielding is brought up to about 69% by about 62%, the residual gum content of product is reduced to below 1.5% by 2%; Its four because the consumption of caustic soda, sulfuric acid reduces, and auxiliary agent of the present invention degrades easily than sodium phosphate trimer, so help the protection of environment.
The invention will be further described below in conjunction with embodiment:
The ramie of being adopted among the embodiment be the Hunan produce two season secondary, kind giantreed green grass or young crops, quantity is 1 kilogram.Boiling house solution and auxiliary agent form see Table one respectively, table two.
Table one boiling house solution
| The embodiment sequence number | Consumption is formed (kg) |
| One | NaOH (95%) 0.06+ water 8+I type auxiliary agent 0.03 |
| Two | NaOH (95%) 0.05+ water 9+I type auxiliary agent 0.03 |
| Three | NaOH (95%) 0.06+ water 9+II type auxiliary agent 0.03 |
Table two auxiliary agent
| The embodiment sequence number | Classification | Form |
| One, two | The I type | Sodium alkyl benzene sulfonate+anthraquinone+sodium sulphate |
| Three | The II type | Dodecyldimethylammonium hydroxide inner salt+anthraquinone+sodium sulphate |
Three embodiment operating process are as follows: earlier ramie is immersed in the boiling-off solution, is warming up to 100 ℃ then rapidly, boil 45,50,60 minutes continuously after, take out ramie, carry out post processing again after cold slightly.Aftertreatment technology is same as the prior art, copies fiber crops, bleaching, peracid, oil supply, dehydration, baking operation that is:.Products obtained therefrom row yielding (%) is respectively: 68.6,67.8,69.4, and product residual gum content (%) is respectively 0.8,1.5,1.8.
Claims (5)
1, the separation method of a kind of plant cellulose and non-cellulose is used the caustic soda boiling-off, it is characterized in that adopting the one-level boiling-off, the auxiliary agent that adopts is made up of surfactant, anthraquinone, sodium sulphate, this boiling-off technological parameter is: bath raio 1: 8-10, temperature 95-110 ℃, pressure is normal pressure～9.80665 * 10
4Pa, time 30-50 minute, it was respectively 4-6,2.3-3.0 that NaOH, auxiliary dosage account for the plant fiber material percentage by weight.
2, separation method according to claim 1 is characterized in that described surfactant, is to adopt the anionic activating agent.
3, separation method according to claim 2 is characterized in that described anionic activating agent, is to adopt the Sulfonates activating agent.
4, separation method according to claim 1 is characterized in that described surfactant, is to adopt the amphoteric ion type activating agent.
5, separation method according to claim 1 is characterized in that described amphoteric ion type activating agent, is to adopt the dodecyldimethylammonium hydroxide inner salt class.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN89100671A CN1035522C (en) | 1989-02-01 | 1989-02-01 | Separating method of vegetable cellulose and non-cellulose |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN89100671A CN1035522C (en) | 1989-02-01 | 1989-02-01 | Separating method of vegetable cellulose and non-cellulose |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1044661A CN1044661A (en) | 1990-08-15 |
| CN1035522C true CN1035522C (en) | 1997-07-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN89100671A Expired - Fee Related CN1035522C (en) | 1989-02-01 | 1989-02-01 | Separating method of vegetable cellulose and non-cellulose |
Country Status (1)
| Country | Link |
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| CN (1) | CN1035522C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100334298C (en) * | 2005-10-14 | 2007-08-29 | 山东轻工业学院 | Cotton rod caustic soda anthraquinone method boiling liquor for papermaking |
| KR101657100B1 (en) * | 2008-10-29 | 2016-09-19 | 삼성전자주식회사 | Method and Apparatus for Fractionating Lignocellulose-based Biomass |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5482401A (en) * | 1977-12-05 | 1979-06-30 | Kawasaki Kasei Chemicals | Pulp making method |
| JPS5696981A (en) * | 1979-12-17 | 1981-08-05 | Bayer Ag | Dinitroanthraquinone dispersion and production and use thereof |
| JPS57112486A (en) * | 1980-12-27 | 1982-07-13 | Kawasaki Kasei Chemicals | Alkali pulp digesting method |
| US4384921A (en) * | 1980-05-21 | 1983-05-24 | Osakeyhtio A. Ahlstrom | Alkaline sulfite pulping process with sodium aluminate and anthraquinone |
-
1989
- 1989-02-01 CN CN89100671A patent/CN1035522C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5482401A (en) * | 1977-12-05 | 1979-06-30 | Kawasaki Kasei Chemicals | Pulp making method |
| JPS5696981A (en) * | 1979-12-17 | 1981-08-05 | Bayer Ag | Dinitroanthraquinone dispersion and production and use thereof |
| US4384921A (en) * | 1980-05-21 | 1983-05-24 | Osakeyhtio A. Ahlstrom | Alkaline sulfite pulping process with sodium aluminate and anthraquinone |
| JPS57112486A (en) * | 1980-12-27 | 1982-07-13 | Kawasaki Kasei Chemicals | Alkali pulp digesting method |
Non-Patent Citations (2)
| Title |
|---|
| 《中国造纸》，85年第5期 1985.5.1 余家鸾等，《蔗渣碱性亚硫酸钠和碱性亚硫酸钠加蒽醌蒸煮历程的研究》 * |
| 《中国造纸》，86年第3期 1986.3.1 黄于强等，《稻草原料蒸煮脱木素反应历程的动力学研究》 * |
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| Publication number | Publication date |
|---|---|
| CN1044661A (en) | 1990-08-15 |
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