CN1332293A - Pulping and paper-making process with palm shell as raw material - Google Patents

Pulping and paper-making process with palm shell as raw material Download PDF

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CN1332293A
CN1332293A CN 01126541 CN01126541A CN1332293A CN 1332293 A CN1332293 A CN 1332293A CN 01126541 CN01126541 CN 01126541 CN 01126541 A CN01126541 A CN 01126541A CN 1332293 A CN1332293 A CN 1332293A
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pulp
paper
cooking
black liquor
raw material
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CN 01126541
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CN1150365C (en )
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周汉臣
仇刚
刘以顺
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上海普豪经贸有限公司
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Abstract

The invention involves a kind of method for making pulp and paper using hull of palm tree as raw material, and belongs to the field of papermaking technique. By preprocessing hull, cooking, separating black liquor, washing, cleaning, pulping and paper making etc technical steps, all sorts of papers having met the specifications can be made out. This kind of paper has good physical capabilities that can be used as Kraft wrapping and cultural paper with middle or top grade. The invention discovers new raw material for papermaking and changes trash to treasure.

Description

以棕榈果壳为原料的制浆造纸方法 Methods of Pulp and Paper palm husk as a raw material

技术领域 FIELD

本发明属造纸技术领域,具体涉及一种以棕榈果壳为原料的制浆造纸方法。 The present invention belongs to the technical field of papermaking, particularly relates to a process for pulp and paper palm husk as a raw material.

技术背景棕榈树在世界上种植面广量大。 Background palm trees in the world wide large plantings. 棕榈果实经榨取油料后,其果壳渣一般作为废料抛弃。 After palm fruit oil extract, which is generally discarded as waste slag husk. 长期以来人们把它撒抛在山谷林间,任其自然发酵,或集中堆放后用火焚烧,作肥料使用。 For a long time people throw it spread in the valleys the forest, their natural fermentation, burned with fire after or focus stacking, as fertilizer use. 由此将造成对环境的污染。 Thereby pollute the environment. 一些大量种植棕榈树的国家,如马来西亚等,处理大量的棕榈果壳已成为一大社会问题。 Some countries massive planting of palm trees, such as Malaysia, handle large amounts of palm nut shell has become a major social problem. 为此,人们正在寻求处理和利用棕榈果壳渣的各种途径和方法。 For this reason, people are looking for ways and means of handling and use of palm husk residue. 例如,申请人曾利用该果壳生产中密度纤维板获得成功,但处理果壳渣的量远远不足。 For example, the applicant had used the husk production of medium density fiberboard to be successful, but the amount of processing slag Nutshell far from adequate. 本发明提出了以棕榈果壳作为制浆造纸新原料,并提出了相应的生产方法,化废为宝,造福社会,世界上至今尚无相关的报导。 The present invention proposes to palm husk as new pulp and paper raw materials and the corresponding production methods, waste to treasure for the benefit of society, the world has no relevant reports.

发明内容 SUMMARY

本发明的目的在于提出一种以棕榈果壳为原料的制浆造纸的方法,从而化废为宝,并提供了一种制浆造纸的新原料。 Object of the present invention is to provide a method of pulp and paper palm husk as a raw material, so that waste to treasure, one kind of material provides a new and pulp and paper.

本发明首先对棕榈果壳的化学成份进行了分析。 First, the chemical composition of the present invention were analyzed palm husk. 经过初步脱脂、洗涤、烘干处理后,使之变成为果壳渣丝,分析其化学成份为:水份9.4%,灰份3.33%,热水抽出物7.09%,苯酵抽出物1.65%,本质素12.71%,综合纤维素80.04%。 After a preliminary degreasing, washing and drying process, so that the slag becomes husk fiber, its chemical composition analysis was: 9.4% moisture, 3.33% ash, 7.09% hot water extractives, benzene was 1.65% yeast extracts , lignin 12.71%, 80.04% cellulose synthesis. 可见,其学成份已接近于草类纤维中芦苇的纤维,木质素含量又较芦苇低,纤维形态长宽度较短,纤维交织性能好,说明其可以作为造纸的一种理想原料。 Seen, which are close to learn composition reed grass fibers in the fiber, and lower than the lignin content of the reed, the width of the long short fiber morphology, fiber interlacing performance, which may be described as an ideal raw material for papermaking. 根据棕榈果壳含有一定的油脂以及其化学成份的组成,本发明提出以棕榈果壳为原料的造纸方法,其具体步骤如下:1、预处理。 The palm nut shell liquid composition comprising certain oil and its chemical composition, the present invention provides a papermaking process in palm fruit shell, the steps are as follows: 1, pre-treatment. 把从油榨厂出来的棕榈果壳原料进行预处理,包括清洗、初步脱脂、烘干、切碎、除尘等步骤。 Out of the palm husk Youzha plant material is pretreated, including cleaning, preliminary degreasing, drying, shredding, dust removal step.

2、蒸煮。 2, cooking. 将经过预处理的棕榈果壳原料送到螺旋预浸机,并加入蒸煮用化学药品(行业内称药液),再送入蒸煮器蒸煮,使果壳渣变成纸浆溶液。 After the palm husk pretreated feedstock to the spiral prepreg machine, and added with cooking chemicals (known as chemical industry), and then fed to the digester cooking the pulp into the slag solution husk. 蒸煮器可采用球形的,可以循环回转,也可以采用立式固定的,它靠体外抽液将容器内的药液循环,两种型式的蒸煮器都可以将药液和原料混合均匀。 Can be spherical digester, can be recycled rotation, vertical fixing it by in vitro chemical pumping fluid circulating within the vessel, two types of the digester can be uniformly mixed liquid and the feedstock can also be employed. 本工艺步骤中,蒸煮所用的化学药品为NaOH,加入量为干棕榈果壳原料重量的18—22%;药液和原料的重量比(简称药液比)为1∶4—1∶6,果壳渣的装锅量为120—140kg/m3,蒸煮压力由低到高,蒸煮最高压力为0.6Mpa,高压保温时间为5—6小时。 In this process step, the cooking chemicals used as NaOH, is added in an amount of 18-22% of dry weight of palm husk material; and a liquid feed weight ratio (the ratio of drug solution) was 1:4-1:6, husk tank filling amount of the slag was 120-140kg / m3, from low to high pressure cooking, cooking maximum pressure 0.6Mpa, high pressure holding time of 5-6 hours.

本工艺步骤中,蒸煮所用的化学药品也可以是NaOH和Na2S的混合物,Na2S为NaOH的1/3左右。 In this process step, the cooking chemicals used may be a mixture of NaOH and Na2S, NaOH Na2S about 1/3.

果壳渣原料和药液在蒸煮器内经高温高压蒸煮,进行化学反应,原料中的木质素、多糖类、油脂等有机物在强碱作用下溶解、降解和皂化,而尽可能地保留原料中的纤维素和半纤维素。 Husk material and liquid slag high temperature high pressure cooking in the digester, for chemical reactions, feed lignin, polysaccharides, fats and other organic matter dissolved in a strong base, saponification and degradation, and as far as possible to retain the feedstock cellulose and hemicellulose. 经蒸煮反应后,果壳渣变成了纸浆溶液,然后在高压下将纸浆喷放到料仓,贮存。 After the digestion reaction, the solution husk residue into a pulp, then the pulp is blown under high pressure into the silo, storage.

3、黑液提取。 3, black liquor extraction. 由蒸煮获得的纸浆溶液是一个混合体,其中包含有蒸煮药液和被溶解的有机物等,呈黑颜色,故称其为黑液。 Cooked pulp obtained from the solution is a mixture which contains a cooking liquor and dissolved organic matter, was a black color, so called black liquor. 本工艺步骤中,先申除节机除去纸浆溶液中一部分未被蒸介的粗茎杂物,然后由真空洗浆机组,采用逆流洗涤的方法,把黑液从浆料中分离出来。 In this process step, first application knotter pulp removed is not a part of the solution was distilled mediated thick stalk debris, and then by the vacuum washers unit, countercurrent washing method, the black liquor is separated from the slurry. 上述真空洗浆机组可由3—5台真空洗浆机串联组成,一般为4台。 Unit may be the above-described vacuum washers 3-5 station vacuum washers in series, typically four. 经过本工艺步骤,可以将绝大部分的黑液提取出来。 After this process step, most of the black liquor can be extracted. 分离得越净越好,一般提取率为80%左右(尚有20%左右的黑液仍和浆料混合,将在下道工艺中进一步去除);提取的黑液的浓度和温度越高越好,一般最后一段黑液的浓度为6—7°Be(波美度),温度>60℃,以便于对黑液的回收处理。 Net separating the more the better, generally about 80% extraction rate (there are still about 20% of the black liquor and slurry mixing, the further removal of the lower-end processes); extracting black liquor concentration and temperature as high as possible generally the last paragraph of the black liquor at a concentration of 6-7 ° Be (Baume), a temperature of> 60 ℃, in order to facilitate recycling of the black liquor.

4、洗涤、净化。 4, washed, purified. 对经步骤(3)处理的纸浆液加水稀释,用离心式除砂机和筛浆机进一步除去其中的杂质、泥沙等,然后用浓缩机进行脱水处理,进一步洗掉残留黑液。 Water was added to the pulp slurry was treated in the step (3) was diluted, wherein removing further impurities, such as silt and sand removing machine centrifugal pulp screen, and then dehydrated with a thickener, a further wash residual black liquor. 经几次反复稀释、脱水,直至将残存黑液洗净。 After several repeated dilution, dehydrated until the residual black liquor wash. 一般可通过测定浆料的pH值或侧定其残存碱度来确定洗涤是否终止。 Generally measured slurry pH or alkalinity remaining side thereof set to determine whether to terminate by washing.

5、打浆、造纸。 5, pulping, papermaking. 把经过步骤(4)的纸浆送多台串联的双盘磨进行打浆处理。 The pulp is subjected to step (4) is sent to a plurality of double disc refiners in series beaten. 本步骤的目的是使果壳纤维进一步疏解、分丝、帚化和切断,以满足不同纸种生产的要求。 Purpose of this step is to further ease husk fiber, sub-wire, broom and cutting, to meet the requirements of different paper grades. 打浆情况一般用肖氐叩解度(°SR)来表示。 Beating generally the case with a Shore beating degree (° SR) is represented. 本工艺的打浆度控制为40~50°R·S。 Freeness of the process is controlled to 40 ~ 50 ° R · S. 一般可根据不同纸种的要求所有不同。 All generally different according to different kinds of paper. 打浆度越高,纸浆滤水性越慢,纤维帚化、分丝好,抄成纸的干、温强度高,但透气性较差。 The higher the freeness, the slower pulp drainability, fiber fibrillation, good sub-wire, copied into the dry paper, high-temperature strength, but poor ventilation.

经过打浆工艺,根据纸种的不同要求,加入相应化学助剂和填料,调节好酸碱度,放贮存池贮存,供造纸机使用。 After beating process, depending on the kinds of paper required addition of the respective chemical additives and fillers, regulate the pH, the discharge storage reservoir for the paper machine. 本工艺中,加入的化学助剂为:松香:0.8—1.0%(相对于棕榈果壳重量而言),明矾:5—7%(同前)。 In this process, addition of chemical additives are: rosin: 0.8-1.0% (by weight relative to the palm husk), alum: 5-7% (supra). 另外根据纸种的要求,还可按不同比例,加入其它纸浆(例如针叶木、阔叶木纸浆等),与之混合。 Further according to the requirements of the paper grade, different proportions may also be added to other pulps (e.g. softwood, hardwood pulp, etc.), mixed therewith.

再将上述纸浆在混合池稀释,由泵送到混合箱再稀释,经旋翼筛入高位箱,至造纸机流浆箱,再上网形成纸页,经压榨脱水和烘干后成为纸张。 Then diluting said pulp in a mixing tank, a mixing tank and then pumped into the dilution, the high rotor sieve into the box, to the headbox of the paper machine, the paper sheet is formed and then the Internet, after dewatering and drying the paper becomes. 然后,根据用户要求,分切、复卷,成一定规格要求的卷筒纸或平装纸。 Then, according to user requirements, slitting, rewinding, to certain specifications or paperback paper web.

上述步骤中,流浆箱的作用是保证纸浆纤维均匀分布,并使其流向造纸机的横向断面流量一致,以确保造出匀度好、全幅重量一致的纸张产品。 In the above step, the role of the headbox is to ensure uniform distribution of the pulp fiber and allowed to flow to the transverse cross-section consistent with the paper machine, in order to ensure evenness make good, consistent with the weight of full-size paper products.

造纸机网部主要是脱水成型。 Paper machine dewatering unit primarily molded. 从网部到压榨,对湿纸页进一步用机械方法强化脱水。 From the wire section to the press, to further strengthen the mechanical dewatering of wet paper method. 当纸页干度达到40%左右时进烘干部烘干。 When the dryer section into the dry sheet dryness of up to about 40%. 纸页从烘干部出来时干度达92—95%。 When the sheet from the dryer section of 92-95% dryness.

本发明中,使用的设备与通常的制浆造纸设备相同。 In the present invention, the device used in the conventional devices with the same pulp and paper.

上述方法生产得到的是本色纸。 The method of producing the above paper qualities is obtained. 如果需要生产白纸,还需对经洗涤、净化的纸浆进行漂白工艺的处理。 If you required the production of paper, the need for washing, purification of the pulp bleaching process. 漂白通常可以采取氯化—碱处理——H2O2法三段漂工艺:第一段氯化,纸浆通氯气,将大部分残余木质素变成氯化木质素而溶解,并用洗涤方法予以去除。 Bleaching may generally be taken chloride - alkali treatment method of three-stage bleaching process --H2O2: the first chlorination, chlorine gas through the pulp, most of the residual lignin into the chlorinated lignin is dissolved, and to be removed by washing process.

第二段碱处理,目的进一步洗净纸浆,调节纸浆酸碱度。 Second stage an alkali treatment, a further object of the washed pulp, the pulp pH adjustment.

第三段H2O2漂白,由于氧化脱木素比氯化脱木素更有效,用氧化方法以便获取更佳效果除去木质素。 H2O2 third stage bleaching, delignification due to oxidation than a more effective delignification chloride, to obtain better results by oxidation of lignin removed.

漂后白度>75%以上,以满足各类文化用纸生产需要。 After the bleaching of> 75% in order to meet all kinds of cultural paper production. 漂白也可以选择其中的二段。 Bleaching can also choose which of Sec. 经漂白处理的纸浆送往打浆、造纸工序。 Sent by beating bleached pulp, papermaking process.

本发明中,原料除了棕榈果壳以外,棕榈树本身及其枝叶也可以作为本发明的原料,工艺方法相同。 In the present invention, in addition to the raw material palm husk, palm trees and branches themselves may be used as a raw material of the present invention, the process for the same.

由本发明制造的纸张具有良好的性能,可作为牛皮包装纸和各种中高档文化用纸,成品的主要技术指标见下表1:表1 Paper produced by the present invention has excellent properties, as leather wrapping and a variety of fine paper, the major technical indicators finished in Table 1 below: TABLE 1 具体实施方式下面通过两个实施例,进一步描述本发明,其设备为通常的造纸生产线设备。 Two embodiments, the present invention is further described with the following specific embodiments, which is a conventional type of papermaking apparatus production line equipment.

原料预处理。 Feedstock pretreatment. 对棕榈果壳原料进行清洗、初步脱脂,经人工剪切,剪切长度为25—30mm,去除碎料、尘土等杂质,并将原料混合均匀后,贮存于塑料袋中备用。 Palm husk material to be cleaned, a preliminary degreasing, artificial cut, cut length of 25-30 mm, removal of debris, dust and other impurities, and the uniformly mixed raw material, stored in a plastic bag for use.

蒸煮:已知棕榈果壳原料的化学成份较接近草类原料,由此确定蒸煮工艺条件。 Cooking: Palm husk material known in the chemical composition of raw materials closer grasses, thereby determining the cooking process conditions. 蒸煮后的浆料经黑液提取,经60目筛洗涤、脱水,并在valley打浆机中打至半浆。 Slurry cooking liquor by extraction, washed with 60 mesh screen, dewatered, and beat until a semi-slurry in the valley beater. 两个实施例1#和2#的蒸煮、半浆工艺条件和结果见表2:表2 Two cases 1 and # 2 # cooking embodiment, a semi-slurry process conditions and results are shown in Table 2: Table 2 注:测定方法均采用国家标准方法进行。 Note: The method adopts the national standard method.

漂白处理。 Bleaching treatment. H2O2用于纸浆漂白具有白度稳定性好、工艺适应性强、过程简单、废水污染轻等许多优点。 H2O2 pulp bleaching have many advantages whiteness stability, process adaptability, the process is simple, light wastewater pollution. 本实验采用H2O2漂白法以尽可能提高棕榈纤维浆料白度。 This experiment H2O2 possible to improve bleaching palm fiber pulp brightness. 漂白在热水浴锅中进行。 Bleach in hot water bath pot. 浆料置于不锈钢筒中,加入一定量的漂剂及助剂,控制漂白温度及漂白时间,漂白充分洗涤浆料备用。 The slurry was placed in a stainless steel tube, adding a certain amount of bleaching agents and additives, to control the temperature of the bleaching and bleaching time, to fully bleached pulp washing standby. 漂白条件和结果见下表3: Bleaching conditions and results in Table 3 below:

表3 table 3 对所得漂浆,经打浆后,再进行抄纸,按国家标准测定其物理性能,结果见下表4:表4: The resulting bleached pulp, after pulping, paper-making and then measured for physical properties according to the national standards, the results in Table 4 below: Table 4:

Claims (3)

  1. 1.一种以棕榈果壳为原料的制浆造纸方法,其特征在于具体步骤如下:(1)预处理,对棕榈果壳原料进行清洗、初步脱脂、烘干、切碎、除尘;(2)蒸煮,将原料送到螺旋预浸机,加入蒸煮化学药品,再送入蒸煮器蒸煮,使果壳变成纸浆溶液;蒸煮条件:加入的化学药品为NaOH,加入量为原料重量的18—22%,药液比为1∶4—1∶6,装锅量为120—140kg/m3,蒸煮最高压力为0.6Mpa,高压保温时间为5—6小时;(3)黑液提取,先由除节机除去纸浆溶液中的一部分未被蒸介的粗茎杂物,然后由真空洗浆机组,采用逆流洗涤的方法,把黑液从浆料中分离出来,提取率为80%左右;(4)洗涤、净化,对经步骤(3)的纸浆液加水稀释,用离心式除砂机和筛浆机进一步除去杂质、泥沙等,然后用浓缩机进行脱水处理,进一步洗掉残留黑液;经几次反复,直至浆残存黑液洗净;(5)打浆 A palm-nut shell liquid feedstock in the pulp and paper, wherein the following steps: (1) pre-treating, cleaning of raw palm nut shell, a preliminary degreasing, drying, shredding, dust; (2 ) cooking the raw material to the prepreg machine helix, addition of cooking chemicals, cooking and then fed to the digester, the pulp becomes so husk solution; cooking conditions: addition of chemicals as NaOH, is added in an amount of 18-22 wt feedstock %, liquid ratio 1:4-1:6, pot installed in an amount of 120-140kg / m3, the maximum pressure of 0.6Mpa cooking, high pressure holding time of 5-6 hours; (3) extracting black liquor, first addition removing a section of a portion of the non-evaporated dielectric thick stalk pulp debris in the solution, then by a vacuum method of pulp washing unit, washed with a countercurrent, the black liquor is separated out from the slurry, the extraction rate of about 80%; (4 ) washing, purification, dilution of the pulp slurry in step (3) with water, is further removed by centrifugal sand removing machine pulp screen and impurities, sand and the like, and then subjected to dehydration treatment with a thickener, a further wash residual black liquor; It was repeated a few times, until the residual black liquor pulp wash; (5) beating 造纸,把经步骤(4)的纸浆送多台串联的双盘磨进行打浆处理,打浆度控制为40—50°R·S;然后,根据不同纸种要求,加入相应化学助剂、填料,调节酸碱度,加入的化学助剂为:松香:0.8—1.0%,明矾:5—7%;再将上述纸浆稀释,经旋翼筛入高位箱,至造纸机流浆箱,再上网形成纸页,经压榨脱水和烘干后成为纸张。 Paper, the pulp in step (4) is sent to a plurality of double disc refiners in series beating process, beating degree is controlled to 40-50 ° R · S; then, according to the requirements of different types of paper, by adding the appropriate chemical additives, fillers, adjusting the pH, addition of chemical additives are: rosin: 0.8-1.0%, alum: 5-7%; then diluting said pulp, into the upper tank through the screen rotor, to the headbox of the paper machine, the paper sheet is formed and then the Internet, after dewatering and drying into a paper.
  2. 2.根据权利要求1所述的制浆造纸方法,其特征在于对经洗涤、净化的纸浆进行漂白工艺处理。 2. The method according to pulp and paper according to claim 1, characterized in that to the washed, cleaned pulp bleaching process.
  3. 3.根据权利要求2所述的制浆造纸方法,其特征在于漂白采取氯化—碱处理—H2O2法三段漂白工艺。 3. The method of pulp and paper according to claim 2, characterized in that the bleach taken chloride - alkali treatment method -H2O2 three-stage bleaching process.
CN 01126541 2001-08-24 2001-08-24 Pulping and paper-making process with palm shell as raw material CN1150365C (en)

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CN 01126541 CN1150365C (en) 2001-08-24 2001-08-24 Pulping and paper-making process with palm shell as raw material
MY129493A MY129493A (en) 2001-08-24 2002-08-24 Method of pulping and paper-making from oil palm empty fruit bunch

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Cited By (7)

* Cited by examiner, † Cited by third party
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CN1318690C (en) * 2003-08-26 2007-05-30 山东泉林纸业有限责任公司 In ball washing classifying digesting technology
CN1318688C (en) * 2003-08-26 2007-05-30 山东泉林纸业有限责任公司 Impregnation pretreatment technology of raw material used in soda process pulp making
CN100489190C (en) 2004-08-25 2009-05-20 山东泉林纸业有限责任公司 Method for producing black liquid by intraball cleaning stepwise cooking technology
CN100497810C (en) 2005-09-12 2009-06-10 轻工业杭州机电设计研究院 Pulp and paper making method by continuously boiling hollow palm fruit string fiber
WO2010004581A2 (en) * 2008-07-08 2010-01-14 Venkata Reddy Guntakanti Laserscript on leaves
CN103103864A (en) * 2012-11-30 2013-05-15 中国林业科学研究院林产化学工业研究所 Method for preparing chemical-mechanical pulp for fluting medium by using fresh empty fruit bunches
CN105862494A (en) * 2016-05-26 2016-08-17 四川理工学院 Method for preparing unbleached pulp from sunflower seed shells

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CN103696306B (en) * 2013-12-17 2015-10-21 中南林业科技大学 Camellia one kind of semi-chemical pulp manufacturing process husk

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1318690C (en) * 2003-08-26 2007-05-30 山东泉林纸业有限责任公司 In ball washing classifying digesting technology
CN1318688C (en) * 2003-08-26 2007-05-30 山东泉林纸业有限责任公司 Impregnation pretreatment technology of raw material used in soda process pulp making
CN100489190C (en) 2004-08-25 2009-05-20 山东泉林纸业有限责任公司 Method for producing black liquid by intraball cleaning stepwise cooking technology
CN100497810C (en) 2005-09-12 2009-06-10 轻工业杭州机电设计研究院 Pulp and paper making method by continuously boiling hollow palm fruit string fiber
WO2010004581A2 (en) * 2008-07-08 2010-01-14 Venkata Reddy Guntakanti Laserscript on leaves
WO2010004581A3 (en) * 2008-07-08 2010-05-06 Venkata Reddy Guntakanti Laserscript on leaves
CN103103864A (en) * 2012-11-30 2013-05-15 中国林业科学研究院林产化学工业研究所 Method for preparing chemical-mechanical pulp for fluting medium by using fresh empty fruit bunches
CN103103864B (en) * 2012-11-30 2015-02-11 中国林业科学研究院林产化学工业研究所 Method for preparing chemical-mechanical pulp for corrugating medium by using palm fresh empty fruit bunches
CN105862494A (en) * 2016-05-26 2016-08-17 四川理工学院 Method for preparing unbleached pulp from sunflower seed shells
CN105862494B (en) * 2016-05-26 2017-06-30 四川理工学院 A method for preparing the paste in sunflower shells

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