CN100500399C - A neutral degreasing method of pine - Google Patents
A neutral degreasing method of pine Download PDFInfo
- Publication number
- CN100500399C CN100500399C CNB2007100357235A CN200710035723A CN100500399C CN 100500399 C CN100500399 C CN 100500399C CN B2007100357235 A CNB2007100357235 A CN B2007100357235A CN 200710035723 A CN200710035723 A CN 200710035723A CN 100500399 C CN100500399 C CN 100500399C
- Authority
- CN
- China
- Prior art keywords
- pine
- degreasing
- degreaser
- timber
- neutral
- 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.)
- Expired - Fee Related
Links
Landscapes
- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
The invention discloses a neutral pine degreasing method. The invention comprises the following steps that: (1) degreasing fluid is dispensed; (2) the degreasing fluid is canned; (3) the degreasing processing is performed. The invention enables the pine degreasing depth to reach 5 to 6 cm, the fresh wood color of the pine is kept, the decline of the physical mechanical properties is smaller, and the requirements of the furniture can be completely satisfied. The invention is easy to realize, the operation is convenient, the production cost is low, thereby being more important, the utilization of the technology does not produce waste water, the added value of the pipe is enhanced, and more employment posts are created, and the invention is advantageous in the promotion of the harmonious development of artificial forest resources and the ecology and the society.
Description
Technical field
The present invention relates to the neutral degreasing method of a kind of pine, specifically, relate to and a kind ofly utilize neutral organic mixed solution to remove the method for rosin in the pine.
Background technology
At present, various pines are because the difference of its wood property, rosin content and inclusion, degreasing method is variant slightly, but current degreasing pinewoods method and technology can be concluded five kinds: (1) alkali lye saponification method, (2) solvent extraction, (3) catalyst polymerization, (4) high temperature drying method, (5) boulton process.
Generally, usually adopt two or more degreasing method to combine, but manufacturer is unsatisfactory in actual applications in order to improve degreasing effect.As the degreasing pinewoods rate of utilizing the alkali lye saponification method to handle is low, easy to change, the gloss dimness, and wastewater problem is not basic yet to be solved, and has hindered the development that the pine wood products is produced.
In sum,, obtained considerable progress, also had problems, can not satisfy the requirement in enterprise and market at aspects such as degreasing rate, the anti-variable color processing of degreasing material and degreasing depth though developed many methods in that degreasing pinewoods is technical at present both at home and abroad.Simultaneously, on present degreasing pinewoods theory and technological development, also there are two problems of obviously being badly in need of research:
At first, related in the timber process of manufacture relevant with degreaser infiltration all is non-steady-state permeation process, and the parameter of promptly describing process is the amount relevant with the time.But model in the past is too idealized, and uses steady-state flow data fitting unstable state infiltration mostly.Therefore, set up a theoretical model that meets timber unstable state degreaser infiltration real process, design suitable unstable state degreaser permeability experimental technique, this is an all very important job in theoretical and production application.
Secondly, because measuring large scale test specimen degreaser infiltration coefficient has any problem in practical operation, and the research about the degreasing infiltration all is based on laboratory scale small size test specimen at present, add that the infiltrative variation of degreaser is very big, small size test specimen degreaser permeability has certain limitation in the application of reality, is difficult to the accurately actual degreaser Penetration Signature of reflection large scale test specimen.Thereby the degreaser saturated model of structure large scale timber test specimen, study its permeability, prediction and estimation large scale timber test specimen degreaser infiltration coefficient, can shorten the gap of experimental study and production practices, more effectively be applied in the relevant production reality of timber industry, avoid " large scale effect " to take place.
Therefore, utilize modern test, analysis means, carry out theory and technological innovation, new technology that research and development low cost, high efficiency, low pollution, wood color are fresh, technology maturation and industrialization level are high and new technology are development trends from now on.Applicant of the present invention carries out system research to degreasing pinewoods, obtains to utilize the technology of efficient degreasing, and this can change the situation that China's pine poor benefit is utilized, and also the sustainable development to China Forest has crucial meaning.
Summary of the invention
The neutral degreasing method of the pine that technical problem to be solved by this invention provides a kind of low cost, high efficiency, lowly pollutes, wood color is fresh and industrialization level is high.
In order to solve the problems of the technologies described above, the neutral degreasing method of pine provided by the invention, adopt following steps:
(1), preparation degreaser: according to mixed ethanol of volume ratio 1～9:1 and benzene, must mix solvent, and then, be mixed with degreaser according to the mixed solvent of volume ratio 1:99～1:9 dilute with water;
(2), tinning: according to V
Pine/ V
DegreaserVolume ratio is 1:10～1:0.5 with degreaser and the pine high pressure degreasing tank of packing into;
(3), ungrease treatment: be warming up to 110～160 ℃ with prestissimo, insulation 4～8h is cooled to 50～80 ℃ then, discharges liquid, reclaims rosin; After having arranged liquid, open degreasing tank, draw off pine and get final product.
Degreasing tank described in the above-mentioned steps (2) requires the pressure of anti-3MPa.
Pine described in the above-mentioned steps (2) means masson pine timber, pinus sylvestris var. mongolica timber, Huashan pine timber, larchwood, wet-land pine tree timber or torch pine timber.
Temperature retention time described in the above-mentioned steps (3) is that degreasing depth reaches the temperature retention time that 5～6cm needs.
Adopt the neutral degreasing method of the pine of technique scheme, reaching the purpose of degreasing by benzene/alcohol dissolving rosin) the present invention can make the degreasing pinewoods degree of depth reach 5～6cm, wood color keeps the fresh wood color of pine, and physico-mechanical properties descends less, can satisfy the requirement of furniture fully.This invention have be easy to realize, easy to operate, production cost is low, what is more important utilizes this technology not produce waste water, improves the added value of pine, job-creation helps promoting artificial forest resource and ecological, social harmonious development.
In sum, the present invention be a kind of low cost, high efficiency, lowly pollute, the neutral degreasing method of wood color is fresh and industrialization level is high pine.
The specific embodiment
Can further be expressly understood the present invention by specific embodiments of the invention given below, but following embodiment is not a limitation of the invention.
Embodiment 1:
(1) preparation degreaser: according to mixed ethanol of volume ratio 1:1 and benzene, must mix solvent, and then, be mixed with degreaser according to the mixed solvent of volume ratio 1:99 dilute with water;
(2) tinning: according to pine volume/degreaser volume is 1:1, with degreaser and the larch sheet material high pressure degreasing tank (requiring the pressure of anti-3MPa) of packing into;
(3) ungrease treatment: be warming up to 110 ℃ with prestissimo, insulation 8h makes its degreasing depth reach 5～6cm, and wood color keeps fresh pine wood color; Be cooled to 50 ℃ then, discharge liquid, reclaim rosin; After having arranged liquid, open degreasing tank, draw off pine and get final product.After the degreasing, degreasing rate reaches more than 80%, and color presents new green wood wood color, and the physico-mechanical properties variation is no more than 8%.
Embodiment 2:
(1), preparation degreaser: according to mixed ethanol of volume ratio 9:1 and benzene, must mix solvent, and then, be mixed with degreaser according to the mixed solvent of volume ratio 1:9 dilute with water;
(2), tinning: according to pine volume/degreaser volume is 1:10, with degreaser and the masson pine sheet material high pressure degreasing tank (requiring the pressure of anti-3MPa) of packing into;
(3), ungrease treatment: be warming up to 160 ℃ with prestissimo, insulation 4h makes its degreasing depth reach 5～6cm, and wood color keeps fresh pine wood color; Be cooled to 80 ℃ then, discharge liquid, reclaim rosin; After having arranged liquid, open degreasing tank, draw off pine and get final product.After the degreasing, degreasing rate reaches more than 80%, and color presents new green wood wood color, and the physico-mechanical properties variation is no more than 8%.
Embodiment 3:
(1), preparation degreaser: according to mixed ethanol of volume ratio 3:1 and benzene, must mix solvent, and then, be mixed with degreaser according to the mixed solvent of volume ratio 1:66 dilute with water;
(2), tinning: according to pine volume/degreaser volume is 1:0.5, with degreaser and the wet-land pine tree sheet material high pressure degreasing tank (requiring the pressure of anti-3MPa) of packing into;
(3), ungrease treatment: be warming up to 140 ℃ with prestissimo, insulation 6h makes its degreasing depth reach 5～6cm, and wood color keeps fresh pine wood color; Be cooled to 60 ℃ then, discharge liquid, reclaim rosin; After having arranged liquid, open degreasing tank, draw off pine and get final product.After the degreasing, degreasing rate reaches more than 80%, and color presents new green wood wood color, and the physico-mechanical properties variation is no more than 8%.
Embodiment 4:
(1) preparation degreaser: according to mixed ethanol of volume ratio 4:1 and benzene, must mix solvent, and then, be mixed with degreaser according to the mixed solvent of volume ratio 1:99 dilute with water;
(2) tinning: according to pine volume/degreaser volume is 1:8, with degreaser and the pinus sylvestris var. mongolica sheet material high pressure degreasing tank (requiring the pressure of anti-3MPa) of packing into;
(3) ungrease treatment: be warming up to 120 ℃ with prestissimo, insulation 8h makes its degreasing depth reach 5～6cm, and wood color keeps fresh pine wood color; Be cooled to 50 ℃ then, discharge liquid, reclaim rosin; After having arranged liquid, open degreasing tank, draw off pine and get final product.After the degreasing, degreasing rate reaches more than 80%, and color presents new green wood wood color, and physico-mechanical properties changes fluctuation and is no more than 8%.
Embodiment 5:
(1), preparation degreaser: according to mixed ethanol of volume ratio 5:1 and benzene, must mix solvent, and then, be mixed with degreaser according to the mixed solvent of volume ratio 1:9 dilute with water;
(2), tinning: according to pine volume/degreaser volume is 1:5, with degreaser and the torch pine sheet material high pressure degreasing tank (requiring the pressure of anti-3MPa) of packing into;
(3), ungrease treatment: be warming up to 150 ℃ with prestissimo, insulation 7h makes its degreasing depth reach 5～6cm, and wood color keeps fresh pine wood color; Be cooled to 60 ℃ then, discharge liquid, reclaim rosin; After having arranged liquid, open degreasing tank, draw off pine and get final product.After the degreasing, degreasing rate reaches more than 80%, and color presents new green wood wood color, and the physico-mechanical properties variation is no more than 8%.
Embodiment 6:
(1), preparation degreaser: according to mixed ethanol of volume ratio 2:1 and benzene, must mix solvent, and then, be mixed with degreaser according to the mixed solvent of volume ratio 1:66 dilute with water;
(2), tinning: according to pine volume/degreaser volume is 1:0.5, with degreaser and the Huashan pine sheet material high pressure degreasing tank (requiring the pressure of anti-3MPa) of packing into;
(3), ungrease treatment: be warming up to 130 ℃ with prestissimo, protect 5h, make its degreasing depth reach 5～6cm, wood color keeps fresh pine wood color; Be cooled to 70 ℃ then, discharge liquid, reclaim rosin; After having arranged liquid, open degreasing tank, draw off pine and get final product.After the degreasing, degreasing rate reaches more than 80%, and color presents new green wood wood color, and the physico-mechanical properties variation is no more than 8%.
Claims (4)
1, the neutral degreasing method of a kind of pine is characterized in that adopting following steps:
(1), preparation degreaser: according to volume ratio 1～9: 1 mixed ethanol and benzene must mix solvent, and then according to 1: 99～1: 9 mixed solvent of dilute with water of volume ratio, be mixed with degreaser;
(2), tinning: according to V
Pine/ V
DegreaserVolume ratio be 1: 10～1: 0.5 with degreaser and the pine high pressure degreasing tank of packing into;
(3), ungrease treatment: be warming up to 110～160 ℃ with prestissimo, insulation 4～8h is cooled to 50～80 ℃ then, discharges liquid, reclaims rosin; After having arranged liquid, open degreasing tank, draw off pine and get final product.
2, the neutral degreasing method of pine according to claim 1 is characterized in that: the degreasing tank described in the above-mentioned steps (2) requires the pressure of anti-3MPa.
3, the neutral degreasing method of pine according to claim 1 is characterized in that: the pine described in the above-mentioned steps (2) means masson pine timber, pinus sylvestris var. mongolica timber, Huashan pine timber, larchwood, wet-land pine tree timber or torch pine timber.
4, the neutral degreasing method of pine according to claim 1 is characterized in that: the temperature retention time described in the above-mentioned steps (3) is the temperature retention time that degreasing depth reaches 5～6cm needs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100357235A CN100500399C (en) | 2007-09-12 | 2007-09-12 | A neutral degreasing method of pine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100357235A CN100500399C (en) | 2007-09-12 | 2007-09-12 | A neutral degreasing method of pine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101157230A CN101157230A (en) | 2008-04-09 |
| CN100500399C true CN100500399C (en) | 2009-06-17 |
Family
ID=39305522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2007100357235A Expired - Fee Related CN100500399C (en) | 2007-09-12 | 2007-09-12 | A neutral degreasing method of pine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100500399C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102837343B (en) * | 2012-08-29 | 2015-04-08 | 中南林业科技大学 | Degreasing method for pines |
| CN107584605A (en) * | 2017-08-22 | 2018-01-16 | 安徽省霍山县金园竹艺有限公司 | A kind of method of discarded bamboo stick bamboo chip recovery processing |
-
2007
- 2007-09-12 CN CNB2007100357235A patent/CN100500399C/en not_active Expired - Fee Related
Non-Patent Citations (4)
| Title |
|---|
| L-M马尾松单板脱脂的工艺与设备研制. 林启模，胡淑宜.福建林学院学报，第14卷第3期. 1994 |
| L-M马尾松单板脱脂的工艺与设备研制. 林启模，胡淑宜.福建林学院学报，第14卷第3期. 1994 * |
| 马尾松单板脱脂的工艺研究. 林启模，胡淑宜.福建林学院学报，第10卷第3期. 1990 |
| 马尾松单板脱脂的工艺研究. 林启模，胡淑宜.福建林学院学报，第10卷第3期. 1990 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101157230A (en) | 2008-04-09 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103612304B (en) | A kind of formula of pencil board tenderizer, preparation method and application | |
| CN104059425B (en) | A kind of paint stripper and preparation thereof and using method | |
| CN105236798A (en) | Preparation method of naphthalene-series water reducing agent | |
| CN100500399C (en) | A neutral degreasing method of pine | |
| CN107011840A (en) | A kind of preparation method of non-formaldehyde wood adhesive | |
| CN104388107B (en) | Esterified biological asphalt and preparation method thereof | |
| CN204624362U (en) | Anti-clogging funnel | |
| CN100551651C (en) | A kind of degreasing method of pine veneer | |
| CN100532036C (en) | Pine acid degreasing method | |
| CN102837342B (en) | Degreasing method for wood | |
| CN100562416C (en) | A kind of method of degreasing pinewoods | |
| CN102837343A (en) | Degreasing method for pines | |
| CN106243562A (en) | A kind of preparation method of Starch Based Biodegradable Plastics | |
| CN103013592A (en) | Technical formula and production process for alcohol-based biodiesel | |
| CN105082269A (en) | Wood base composite and manufacturing method thereof | |
| CN103756609A (en) | Plywood glue and preparation method thereof | |
| CN204079852U (en) | A kind of poly-unit of C5 petroleum resin | |
| CN103820143B (en) | Breaking emulsion and dewatering agent for the treatment of of aged viscous crude and preparation method thereof | |
| CN105296134B (en) | The regeneration method of used oil | |
| CN205216565U (en) | Processing apparatus of biodiesel vacuum tail gas | |
| CN204768504U (en) | High efficiency agitating unit for chemical industry | |
| CN105251369B (en) | Nanofiltration membrane modification method and application thereof | |
| CN212142577U (en) | A online air stripping device for acrylic resin production | |
| Linzmeyera et al. | Comparison of different separation methods for solids removal in an ethanol fermentation broth from banana culture waste | |
| CN106010018A (en) | Antibacterial water-based coating and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: SINO-SOUTH AFRICAN FORESTRY UNIVERSITY OF SCIENCE Free format text: FORMER OWNER: LIU YUAN Effective date: 20090515 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090515 Address after: Central South University of Forestry and Technology, 498 South Changsha Road, Hunan, Shaoshan Province, China: 410004 Patentee after: Central South University of Forestry and Technology Address before: School of materials science and engineering, Central South University of Forestry and Technology, 498 Shaoshan South Road, Changsha, Hunan, China: 410004 Co-patentee before: Peng Wanxi Patentee before: Liu Yuan Co-patentee before: Wu Yiqiang Co-patentee before: Li Xianjun |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090617 Termination date: 20110912 |