1916 results about "Eucalyptus" patented technology

A continuous and modular process converts lignocellulosic materials for the production of ethanol principally and / or chemicals such as methanol, butanediol, propanediol, hydrocarbon fuel, etc. Renewable lignocellulosic biomass such as but not all inclusive hardwoods (gum, beech, oak, sweet gum, poplar, eucalyptus, etc.), soft woods (pines, firs, spruce, etc.), corn stovers, straws, grasses, recycled papers, waste products from pulp and paper mills, etc can be used as feedstock. The process is designed to be modular and the feed entry point can be selected to adapt to different biomass feedstock. Lignocellulosic biomass such as hardwood and softwood are subjected to chemical / pressure treatment stages using potent and selective chemicals such as sodium chlorite / acetic acid (anhydrous) and chlorine / chlorine dioxide to separate the main components—lignin, cellulose (glucose) and hemicelluloses (xylose, arabinose, galactose)—into three process streams. The separated carbohydrates are further subjected to washing, cleaning, neutralization, and / or mild hydrolysis and subsequently fermented to produce ethanol. Residual lignin and extractives remained with the cellulose are removed by chemical treatment steps to enhance the fermentations of cellulose. Pre-hydrolysate after neutralization to neutralize and remove toxic components such as acetic acid, furfural, phenolics, etc. containing (xylose, arabinose, galactose) and hexoses (glucose) can be either separately or together with the purified cellulosic fraction fermented to produce ethanol. Approximately 100 gallons of ethanol, suitable to be used as a fuel, can be produced from one dried ton of wood. Significant amount of lignin are separated as a by-product and can be converted to hydrocarbon fuel, surfactant, drilling aid, or can be incinerated for generation of power and steam.

A cellulosic tissue includes cellulosic fibers selected from the group consisting of chemically pulped fibers and mechanically pulped fibers, the cellulosic fibers have from about 10% to about 50% by weight eucalyptus fibers having a lignin content of at least about 20% by weight, and from about 3% to about 10% by weight regenerated cellulosic microfibers.

An object of the present invention is to provide a bactericide (and a fungicide) that is highly safe and has strong bactericidal power even when used in low concentration, and that can be used repeatedly in a sterilizing process.The object can be achieved by the bactericide (or the fungicide) comprising a polar solvent extract of leaves of eucalyptus plants and chitosan. The polar solvent is preferably chosen from the group consisting of lower alcohols and glycols.

The invention discloses a mosquito repellent liquid, comprising the following ingredients: 10-25 weight portions of lavender, 35-50 weight portions of lemongrass, 8-20 weight portions of aloe, 8-15 weight portions of calendula, 10-20 weight portions of chamomile, 25-40 weight portions of jasmine, 10-20 weight portions of rose, 35-50 weight portions of cordate telosma, 35-50 weight portions of mint leaves, 35-55 weight portions of camphor leaves, 20-40 weight portions of wormwood, 20-40 weight portions of eucalyptus leaves, 10-20 weight portions of star anise, 20-40 weight portions of Lantana camara, 15-35 weight portions of Mozzie buster, 10-20 weight portions of Salvia officinalis, 10-20 weight portions of marjoram, and 10-18 weight portions of rosemary. The preparation method comprises the following steps: weighing and mixing the raw materials according to the weight proportions, immersing the raw material mixture in ethanol having 15-30 times the weight of the mixture for 20-35 h, filtering, and filling. The mosquito repellent liquid disclosed herein contains no chemical additives, can effectively protect skin from being bitten by mosquito, and has the effects of removing miliaria, relieving itching, reducing swelling, relieving pain, refreshing mind, restoring consciousness, purifying air, resisting inflammation, and sterilizing.

The invention discloses a college teaching cloud platform based on micro services. A campus network and private cloud are combined through a virtual private network to build a cloud platform, and a micro service architecture is utilized to build services of the cloud platform; using an open source project Eucalyptus developed by the Department of Computer Science of the University of California to set up private cloud; and all requests of a client first pass through an API gateway, then the API gateway routes the requests to appropriate micro services, and generally the APT gateway calls a plurality of micro services and merges a result to process a request. According to the invention, the micro service architecture is used for the college teaching cloud platform, application of the teaching cloud platform is decoupled into micro services of different functions, thereby enabling each link of teaching to be called in a micro service mode, the response is quick, and the efficiency is high; and the private cloud and the campus network are connected through the virtual private network to form the college teaching cloud platform, thereby providing better resource sharing for teachers and students, and the college teaching cloud platform has good elasticity and expansibility.

The invention provides an air refreshing agent of traditional Chinese medicine for dispelling mosquito and sterilizing. The prescription of the invention, which is calculated according to the weight percentage, is 1 percent to 3 percent of essential oil of southernwood, 1 percent to 3 percent of essential oil of eucalyptus leaf, 2 percent to 3 percent of excipient, 1 percent to 3 percent of solubilizer, 0.5 percent to 1 percent of preservative, 0.5 percent to 1 percent of coagulant, 50 percent to 80 percent of solvent, 5 percent to 10 percent of essence and 0.5 percent to 1 percent of pigment, wherein the excipient is sodium alginate, gelatin and agar; the solubilizer is the tween series (40, 60 and 80); the preservative is sodium benzoate and potassium sorbate; the coagulant is calcium carbonate or calcium chloride; the solvent is water. The invention uses the traditional Chinese medicinal materials of the essential oil of southernwood and the essential oil of eucalyptus leaf as the main component for dispelling mosquito and sterilizing to replace a traditional chemical mosquito-dispelling and sterilizing agent with toxic and side effect, and the invention is nontoxic and innoxious to human body and is a green and environmental protective product and can be applied widely.

The present invention relates to a mosquito repelling and itching relieving toilet water and a preparation method thereof, and belongs to the field of daily chemicals. The mosquito repelling and itching relieving toilet water is characterized by comprising the following raw materials, by weight: 2-4 parts of lavender essential oil, 6-10 parts of argy wormwood leaf oil, 5-7 parts of robust eucalyptus leaf oil, 10-15 parts of peppermint, 12-18 parts of wild dendranthema flower, 5-8 parts of propolis, 80-100 parts of deionized water, and 1-4 parts of an emulsifying agent, wherein the emulsifying agent is one or a plurality of materials selected from modified soybean phospholipid, glyceryl monostearate and glycerol monolaurate. According to the present invention, the mosquito repelling and itching relieving toilet water is prepared from the pure nature raw materials, has characteristics of mosquito repelling, itching relieving, long acting time and good insect bite dermatitis treatment effect, and is an ideal daily care product. In addition, the finished production preparation method is simple and easy to popularize and apply.

The invention relates to a plant essential oil air-purifying agent and a preparation method thereof. The essential oil air-purifying agent is prepared from the following raw materials in parts by weight: 0.3 part of eucalyptus essential oil, 0.3 part of tea plant essential oil, 0.3 part of mugwort essential oil, 0.3 part of grapefruit essential oil, 0.4 part of lime essential oil, 0.4 part of lemon essential oil, 0.4 part of peppermint essential oil, 0.6 part of lavender essential oil, 0.9 part of geranium essential oil, 0.4 part of cedar essential oil, 0.7 part of rose essential oil, 0.4 part of patchouli essential oil and 94.6 parts of diluter. The invention has the following beneficial effects: the plant essential oil air-purifying agent has a simple preparation process, and can completely remove smoke smell and other peculiar smells in automobiles / rooms through decomposition and neutralization; as the essential oil has a short aroma-retaining time and can be volatilized quickly, the aroma can not be retained after the essential oil is used; the essential oil does not contain any chemical composition harmful to the human body, thereby ensuring the safety of the product and being acceptable to consumers; and because of the own attractive aroma of the essential oil, a comfortable, fresh, clean, delightful and healthy space can be provided for people after the essential oil is used.

The invention is applied to the production of eucalyptus crops, can improve soil structure and provide sufficient water, oxygen and nutrient to improve the output and the quality of planted eucalyptus crops. The invention relates to a fertilizer containing microorganisms and organic and inorganic substances. The fertilizer adopts cooperation of biotechnology and electrolytic technology, takes the microorganisms and mineralized matter as additives, and is added with nutrient formulation (nitrogen, phosphorus, potassium, sulfur, magnesium, calcium, silicon, boron, zinc, ferrum, molybdenum, and mycoprotein, amino acid, humus, plant nucleic acid, B vitamins, organized enzymes and unidentified factors improving the growth of the crops), which not only can provide sufficient nutrient for the crops, but also improves the soil, and is favorable for planting eucalyptus. Through the biotechnology, the microorganisms in the state of dormancy are injected the fertilizer, and are activated in favorable environment to decompose animal and plant residue, farm chemical, fertilizers, heavy metal toxic residue and minerals in the soil and change the contents of nitrogen, phosphorus and potassium; through the electrolytic technology, mineralized matter additives make the soil carry out chain reaction with the water and the supplied oxygen, so as to gradually change electric charge of ions in the soil, increase oxygen supply to the soil, improve the infiltrability of the water and strengthen conditions of microorganism activities.

A technology for industrialized processing and molding of a light matrix includes the steps of crushing agricultural and forest waste first, composting the waste with beneficial microbes, namely EM bacteria for fermentation, conducting rational sifting and matrix matching, using a light-matrix processing and molding machine to process the scattered matrix into an enteroid matrix container with a diameter of 35mm to 50mm, and then cutting the matrix container into small sections, namely matrix sections in the length of 80mm to 100mm, thereby suiting both the cultivation of eucalyptus grafts and the upper bag of the seedling container for tissue-culture rooting. The technology, which can be used for industrialized matrix production, greatly reduces labor intensity and protects ecological environment. The matrix, belonging to composite matrix, can be used for seeding, cuttage and transplant of plants and for the cultivation of other seedlings for greening purpose, with a high survival rate and robust root systems.

The invention relates to a plant essential oil bactericidal disinfectant. The plant essential oil bactericidal disinfectant is prepared from the following raw materials in percentage by weight: 0.3 percent of eucalyptus oil, 0.4 percent of tea tree oil, 0.3 percent of armoise oil, 0.5 percent of rosemary oil, 0.5 percent of bergamot oil, 0.5 percent of lemon oil, 0.7 percent of lavender oil, 0.2 percent of clove oil, 0.4 percent of thyme oil, and the balance of diluent. The plant essential oil bactericidal disinfectant has the advantages that: the plant essential oil bactericidal disinfectant is prepared from brand-new pure natural plant essential oils; and compared with the traditional human skin bactericide and bactericide for daily sanitary appliances, the plant essential oil bactericidal disinfectant has the characteristics of nature and environment friendliness, good sterilization and disinfection effects, and comfortable smell, has no harm to human bodies, and is beneficial to physical and psychological health of people.

This invention discloses a fertilizer specific for eucalyptuses. The fertilizer comprises: N 5-18 wt.%, P2O5 7-15 wt.%, K2O 5-12 wt.%, Cu 0.05-0.3 wt.%, Zn 0.05-0.4 wt.%, and B 0.05-0.2 wt.%. The fertilizer can supply nutrition for eucalyptuses growth, thus can raise the productivity of eucalyptuses. The fertilizer is particularly suitable for eucalyptuses in Guangxi province.

The invention provides a method for cultivating lucid ganoderma, relating to a method for cultivating edible fungi, in particle to a method for cultivating the lucid ganoderma with new cultivating material. The cultivating material in the method contains eucalyptus, wherein the cultivating material is preferably contains eucalyptus bark or eucalyptus branch or mixture of the eucalyptus bark and the eucalyptus branch. The method selects the eucalyptus as the cultivating material, wherein the eucalyptus is not usually regarded as to be suitable for cultivating the lucid ganoderma, to obtain lucid ganoderma seed entities with faster growth speed, wherein the seed entities almost have the same effective constituent of the lucid ganoderma. Furthermore, the eucalyptus has fast growth, short circulation period and high yield, therefore, the price is lower than the other broad-leaved trees. Because the other constituents such as cotton seed hulls, bagasse, and the like, are not needed to be added, comparatively speaking, the method has lower price.

A fibrous structure product comprising one or more plies of fibrous structure; a basis weight from about 10 lbs / 3000 ft2 to about 50 lbs / 3000 ft2; from 16% to about 40% of hardwood fibers, in one embodiment eucalyptus fibers, wherein the starting hardwood fibers have a Runkel Ratio of from 4.5 to about 15 and a fiber count of from about 12 fibers / gram to about 35 fibers / gram; and a Residual Water Value from about 0.001 to about 0.18. In one embodiment the product comprises two or more plies of fibrous structure, a basis weight from about 25 lbs / 3000 ft2 to about 50 lbs / 3000 ft2 and from about 23% to about 40% of hardwood fibers. In another embodiment at least one of the piles of the fibrous structure product further comprises a plurality of embossments thereon comprising an embossment height of from about 600 μm to about 1,200 μm.

The invention provides a penicilliums p. strain and application thereof. Eucalyptus endophyte is a penicilliums p. strain 1, and the collection number is CGMCC No.4297. The eucalyptus endophyte inoculated to eucalyptuses can improve the low phosphorus stress resistance of the eucalyptuses and promote phosphorus absorption of the eucalyptuses. Because the eucalyptus endophyte is used for promoting the phosphorus absorption of the eucalyptuses, and when the strains are inoculated to the eucalyptus plants, the activities of the plant phosphatase and the soil phosphatase can be improved, the pH value of the soil rhizosphere can be reduced, and the plant P utilization rate is greatly improved; therefore, the purpose of promoting normal growth of the plants in the low phosphorus soil is fulfilled, and the utilization rate of the soil phosphate fertilizer is greatly reduced.

The invention relates to a Chinese herbal medicinal insecticide, and aims to solve the problem of public hazards of the conventional insecticide. The Chinese herbal medicinal insecticide comprises the following Chinese herbal medicines in part by weight: 50 to 110 parts of macleaya cordata, 50 to 110 parts of eucalyptus robusta smith, 40 to 100 parts of betel nut, 40 to 100 parts of pumpkin seed,40 to 100 parts of clematis root, 40 to 100 parts of celastrus angulatus, 30 to 90 parts of stone-like omphalia, 30 to 90 parts of grand torreya seed, 30 to 90 parts of camphor tree, 30 to 90 parts of pomegranate rind, 30 to 90 parts of lightyellow sophora root, 30 to 90 parts of rhododendron molle, 30 to 70 parts of fourstamen stephania root, 30 to 70 parts of sessile stemona root, 30 to 70 parts of hindu datura flower and 30 to 70 parts of liquoric root. The Chinese herbal medicinal insecticide is prepared by the following steps of: performing alcohol precipitation on the Chinese herbal medicines to obtain the original liquid medicine; diluting sodium usnic acid by using a solvent; and adding 0.1 to 0.3 weight percent of diluted sodium usnic acid into the original liquid medicine. The finished Chinese herbal medicinal insecticide comprises 0.5 percent (g / ml) of sanguinarine, is brownish red, has the ph value of 7 to 8 and the density of 1.10g / cm<3>, and has the advantages of effective insecticidal capability, no damage to humans, high adsorbability and durable seepage force.

The invention discloses a three-hot-pressing and two-sanding eucalyptus poplar composite artificial board and a method for manufacturing the same. The composite artificial board is composed of a core layer, a poplar thin veneer layer and a grainy paper layer soaked with melamine polymer resins. The core layer is eucalyptus poplar plywood which is formed by assembly pressing of a plurality of layers of eucalyptus poplar veneers according to mutual vertical textures, a layer of eucalyptus poplar veneers is arranged on the upper and lower surfaces of the core layer respectively, the fiber direction of the eucalyptus poplar veneers is perpendicular to the fiber direction of the surface of the core layer, and a layer of grainy paper soaked with melamine polymer resins is arranged on outer surfaces of two layers of eucalyptus poplar veneers respectively. The method for manufacturing the artificial board includes log trim, rotary cut, shear, drying, veneer settling and repairing, veneer sizing, assembly row veneer aging, pre-pressing and hot pressing, thickness determination sanding, sizing to age the assembly, pre-pressing and hot pressing, thickness determination sanding, veneering, hot pressing and post processing. According to the three-hot-pressing and two-sanding eucalyptus poplar composite artificial board and the method for manufacturing the same, furniture cost can be reduced, harmful gas releasing of furniture is reduced, and indoor air is guaranteed to be clean.

The invention discloses a method for culturing large eucalyptus seedlings. The method comprises the following technical steps: 1. selection of seedling field; 2. preparation of a plug seedling bed; 3.preparation and sterilization of matrix soil; 4. selection and treatment of ear rods and tissue culture seedlings; 5. cutting and plug transplantation of the tissue culture seedlings, wherein, the cutting seedlings are vertically inserted in the midpoint of holes at depth of 1.5-2cm; and the tissue culture seedlings are directly transplanted to the prepared plug seedling bed; 6. water and fertilizer management; 7. transplantation in vessels: the seedlings are cultured in the plugs for about 50-70 days, and terminal buds are newly extracted to 2-3cm; when the root systems of most of nursery stocks are lumped, the seedlings in the plugs are transplanted to a black polyethylene plastic nursery cup with 8*8 (cm) for culturing the large seedlings; and 8. culture of the large seedlings: the transplanted young seedlings are placed in a shading arched cover for culture, and a shading net is gradually opened for hardening the seedlings at the later period; water and fertilizer management is strengthened; and then the seedlings are removed out of a seedling nursery and planted in a mountain for afforestation in the case of seedling height up to 35-50cm and ground stems up to more than 0.25cm, fertilization is stopped 10 days before afforestation, and the nursery stocks are applied with transferring fertilizer by 0.3% of complex fertilizer once 1-2 days before outplanting.

The externally applied plaster for treating infantile fever is developed on the infantile physiological and pathological characteristics and fever cause and is prepared with 18 kinds of Chinese medicinal materials, including sweet wormwood, eucalyptus leaf, mint, schizonepta, etc. and through decoction, concentration, crushing, mix and other steps. It has the functions of dispelling wind and other pathogenic evil, clearing away heat and toxic material, resolving stagnation and alleviating mental depression, is used to treat infantile fever diseases, and has obvious curative effect and high safety.

Compositions for the treatment of fungal nail disease (onychomycosis), including camphor, menthol, eucalyptus and thymol are described. The ingredients are natural and very effective in treating the nail fungus.

The invention discloses electric-heating liquid mosquito-repellent incense with natural plant fragrance of agilawood and a preparation method of the electric-heating liquid mosquito-repellent incense. The preparation method comprises the following steps: after uniformly stirring and dispersing 40-60 parts of ethanol, 10-30 parts of butyric acid butylester, 10-15 parts of a traditional Chinese medicine mosquito-repellent purified liquid, 18-19 parts of eucalyptus oil, 1-2 parts of isopropyl myristate, 10-15 parts of fatty alcohol polyoxyethylene ether sodium sulfate and 0.1-0.3 part of sodium benzoate in parts by weight, feeding the raw materials into a bottle, inserting a volatilizing bar made from fiber into the bottle, and heating, so as to volatilize the electric-heating liquid mosquito-repellent incense to repel mosquitoes. The electric-heating liquid mosquito-repellent incense has high safety performance, can be used for effectively repelling the mosquitoes and further has certain inhibiting and killing effects on multiple germs and fungi such as staphylococcus, mycobacterium tuberculosis, pseudomonas aeruginosa, gram-negative bacteria and gram-positive bacteria; meanwhile, the electric-heating liquid mosquito-repellent incense has fragrance and mild properties, can refresh mind, has the effects of relieving pressure and effectively improving sleep quality and is suitable for crowds of all ages.

emollient and methyl salicylate, where said methyl salicylate comprises between 10 and 30 percent by weight of said cream; a skin stimulant comprising menthol crystals and two or more reactants selected from a group of camphor, cinnamomum cassia, diclofenac, eucalyptus, and ginger to cause a hot and cool stimulus on an epidermal surface; a pain reliever comprising two or more agents selected from a group of benzocaine, emu oil, eucalyptus oil, methylsulfonylmethane and glucosamine; and an inflammatory comprising two or more agents selected from a group of artemisia vulgaris, amica Montana flower extract, licorice root extract, oat extract, and thyme oil.

The invention discloses a eucalyptus seedling culture substrate. The eucalyptus seedling culture substrate comprises the following components in part by weight: 35 to 40 parts of coconut shell powder, 25 to 30 parts of peat, 15 to 20 parts of bentonite, 20 to 25 parts of attapulgite, 0.5 to 0.8 part of soil water-retaining agent, 15 to 20 parts of nutrient substance and 0.2 to 0.3 part of composite strain. A production process of the eucalyptus seedling culture substrate comprises the following steps of: drawing silk from a coconut shell to generate fragments; crushing the fragments; sieving until the granular size is 10 to 20 meshes; performing salt exclusion; mixing 35 to 40 weight parts of the coconut shell powder subjected to the salt exclusion, 15 to 20 weight parts of the nutrient substance and 0.2 to 0.3 weight part of high-temperature-resistant fermenting strain; adding clean water to stir and wet; stacking into a circular truncated cone shape; covering a membrane on the circular truncated cone so as to ferment; and after fermenting completely, adding the peat, the composite strain, the bentonite, the attapulgite and the soil water-retaining agent according to the weight ratio to mix and stir uniformly to prepare into block shapes. The coconut shell powder serves as a main raw material, so the materials are obtained singly and easily, the nutrient ingredients and the content are easy to control, and large-scale standard production can be performed easily.

The invention belongs to the technical field of preparing bleached chemical thermomechanical pulp and in particular relates to a process method for preparing the bleached chemical thermomechanical pulp from eucalyptus and poplar. The process method adopts the eucalyptus and the poplar as raw materials to prepare the bleached chemical thermomechanical pulp; through the addition of a pulp grinding accelerant, the process reduces energy consumption of pulp grinding by 10 to 15 percent compared with the prior process for the bleached chemical thermomechanical pulp, reduces production cost, saves energy and simultaneously reduces the content of pulping fasciculus.

The invention discloses a manufacture process for a eucalyptus core plate. The manufacture process comprises the following steps of: drying, groove planing, material cutting, plate joining, primary sanding, assembly, cold pressing, repairing, primary heat pressing, ash scraping, secondary sanding, surfacing, secondary heat pressing, edge sawing, polishing, inspecting, putting in storage and the like. The manufactured eucalyptus core plate has the advantages of good quality, attractive patterns on an edge, a smooth plate surface, large density, heavy weight, sensibility of thickness, easiness in processing, excellent nail holding force, non-deformation and the like. According to the manufacture process, core bars inside the eucalyptus are recycled and processed to form a eucalyptus core plate, thus the energy is saved, the cost is lowered, and the manufactured eucalyptus core plate can be applied in various fields of furniture industry.

The invention discloses natural traditional Chinese medicine mosquito-repellent incense. The natural traditional Chinese medicine mosquito-repellent incense is prepared from following raw materials in parts by weight: 15-30 parts of mosquito-repellent vanilla, 7-12 parts of stramonium, 10-20 parts of melia azedarach, 10-20 parts of eucalyptus leaves, 8-17 parts of african marigolds, 8-15 parts of michelia alba, 10-25 part of cinnamomum porrectum, 11-25 parts of mandarin orange peels, 5-12 parts of common jasmin orange, 3-10 parts of mints, 12-25 parts of white acorus calamus, 7-12 parts of foeniculum vulgare, 5-10 parts of citronella, 9-18 parts of muntiacus reevesi micrurus, 11-20 parts of chenopodium ambrosioides, 5-17 parts of tobacco leaves, 15-30 parts of artemisia argyi, 7-15 parts of angelica dahurica, 8-15 parts of syzygium aromaticum and 5-15 parts of realgar. According to the natural traditional Chinese medicine mosquito-repellent incense, the raw materials are green and natural Chinese herbal medicinal ingredients and have no chemical component; when the natural traditional Chinese medicine mosquito-repellent incense is used, no smoke and dust are generated and the mosquito-repellent effect is good; the natural traditional Chinese medicine mosquito-repellent incense has no harm to a human body and has the characteristics of environmental protection, health, and simple, the utilization method is convenient, and the cost is low.

The invention discloses a degradable agricultural natural insect-repelling mulching film and a preparation method thereof, wherein the degradable agricultural natural insect-repelling mulch is made of a degradable plant fiber film, and a natural repellent is applied to the degradable plant fiber film. The preparation method comprises the following steps: mixing one, two or more plant extracts of cinnamomum camphora, houttuynia cordata, turpentine, eucalyptus, wormwood and pyrethrum with capsalcin or / and garlicin to prepare the natural repellant with insect repelling effect; and soaking the degradable plant fiber film into the natural repellant or spraying the natural insect repellant to the degradable plant fiber film. The degradable agricultural natural insect repelling mulching film disclosed by the invention has good insect repelling effect when spread on the ground or suspended on a crop, so that use of pesticide can be greatly reduced, pesticide residues on the crops can be reduced, the crops can grow in an environmentally-friendly environment, and food safety is ensured from the source.

The invention discloses a eucalyptus dissolving pulp and a production method thereof, wherein the eucalyptus dissolving pulp is prepared after the steam prehydrolysis, sulfate cooking, oxygen delignification and D0EoPD1 bleaching of eucalyptus pieces, the whiteness is not less than 88%, the alpha cellulose is not less than 94.5%, the pentosan is not higher than 3.0%, the dynamic viscosity is 9-25mPa s, the ash content is not higher than 0.1%, and the iron content is not higher than 15mg kg<-1>. The production method of the eucalyptus dissolving pulp comprises the following steps that: the eucalyptus pieces undergo the steam prehydrolysis, and the P- factor of the steam prehydrolysis is 300-800; the sulfate cooking is carried out after the steam prehydrolysis of the eucalyptus pieces to obtain the pulp; the eucalyptus chemical pulp undergoes the D0EoPD1 bleaching after the oxygen delignification; and after the bleaching, the pulp is washed, dried and processed into the eucalyptus dissolving pulp.

The invention belongs to a timber drying method for eucalyptus planted forests. The method comprises the following steps: selecting materials; measuring initial moisture content, in which, sawtimbers are detected to obtain moisture contents and the sawtimbers of different moisture contents are respectively dried; stacking, in which, reasonable circulation of airflow inside a kiln is ensured and the capacity of the kiln is fully utilized to prevent timber warping and end checking; placing a moisture content check plate inside the kiln, in which, the moisture content check plate of dried timber inside the same kiln is determined according to requirements to check the moisture content of the check plate; and controlling the temperature and humidity inside the kiln according to the drying standards of different eucalyptus species. The timber drying method has the advantages of preventing eucalypti from crimpling in the process of drying and ensuring drying quality of eucalypti.

The invention discloses a preparation method of a eucalyptus biomorphic Fe2O3 / Fe3O4 composite heavy metal adsorbent. According to the invention, dilute ammonia water is adopted as a digestion agent, and a pretreatment of extraction is carried out. Ferric nitrate is adopted as a precursor solution, and the eucalyptus biomorphic Fe2O3 / Fe3O4 composite heavy metal adsorbent with a natural plant structural form is produced through a manual controlled preparation technology. Experimental measurements are carried out upon phase, structure, components and appearance characteristics of the absorbent. The adsorbent is applied in a water environment toxic heavy metal absorption treatment experiment. As a result, the material is cheap and environment-friendly. The preparation method provided by the invention provides a novel method and a novel approach of eucalyptus wood material utilization.