55results about How to "High recycling cost" patented technology

There is disclosed a process for producing a polyarylene sulfide (PAS) which comprises reacting a sulfur source with a dihalogenated aromatic compound in the presence of an aprotic organic solvent, characterized in that the process comprises at least one polymerization reaction step wherein a polymer phase as a dispersed phase is in the form of spherical droplets. It is made possible by the continuous polymerization process to discharge the polymer phase and solvent phase from a polymerization vessel at a constant ratio and as a result, to maintain PAS composition (concentration) at a constant level at all times, and thus to provide a continuous PAS production process which is effective for enhancing its molecular weight and stabilizing the same.

The invention discloses a method for preparing silk protein composite cellulose fibers, which includes steps: firstly, adding degummed waste silk into LiBr solution, dissolving the waste silk to prepare silk protein solution in which silk protein accounts for 3-15%, by weight; secondly, adding the silk protein solution into sodium hydroxide solution with cellulose sulfonate to obtain blended solution of silk protein and cellulose, wherein blended silk protein solution accounts for 5-50% of that of the sodium hydroxide with cellulose sulfonate by weight; and thirdly, spinning the blended solution by coagulating bath and obtaining the silk protein composite cellulose fibers by post-processing. By the method, recovery value of the waste silk is improved greatly, special effects of whitening and skin caring of the silk protein composite cellulose fibers can be realized, and the fibers are smooth and soft to touch as silk, and have the skin caring and whitening effects that the effects of protein powder fibers or blended fibers of protein powder and cellulose solution cannot match.

The invention relates to a method for recovering germanium from germanium-containing smoke dust, in particular to a method for leaching the germanium-containing smoke dust by using sulfuric acid and sodium hydroxide sequentially and recovering the germanium from the germanium-containing smoke dust by hydrochloric acid distillation, and relates to the technical field of wet-process metallurgy. The method is realized by processes of leaching by the sulfuric acid twice, leaching by the sodium hydroxide twice, neutralizing leachate, performing evaporating and concentrating, chloridizing and distilling, preparing germanium dioxide and the like. In the method for recovering the germanium, the recovery rate of the germanium is more than 93 percent, so the successful study of the method has a great positive significance for the solving of problems of low recovery rate, high recovery cost and low resource utilization rate of the germanium in the germanium-containing smoke dust, a problem that distillation residues are needed to be processed repeatedly and a problem that environmental pollution is serious and the like.

A method and apparatus are described for embedding information in digital cinema content, including accepting a scene from a digital cinema content file, selecting a scene object in the scene to be modified with the information, determining a characteristic for the selected scene object and generating a scene build based on the characteristic, wherein the characteristic is representative of the information. The method and apparatus further include time-stamping, compressing and storing the scene build. Further, a method and apparatus are described for embedding forensic information in digital cinema content, accepting a digital cinema content file having therein a plurality of scene builds, accepting a forensic code and selecting a scene build from the digital cinema content file based on the forensic code. The scene build, having forensic information, is thereafter displayed.

The aim of this invention is to fill up above described blank and supplies a breadboard wastewater reclaiming craft. The aim is accomplished by follows technical proposal: partly introduce each wastewater department of breadboard workshop to mixing pool, through precipitation, then takes pretreatment filtration by microfilter and ultrafilter, then pass recovery system, the water quality can reach standard that conductivity less than 20us / sq cm, and has no particle that greater than 10 micrometer, PH is neutrality, can reclaim to workshop for water of productive using; flow tank sludge after dewatering is disposed by other departments.; high COD wastewater through this system can reach discharging standard; acid and alkali department, water washing, and complexation wastewater after precipitation is introduced to mixing pool, sludge after dewatering is disposed by other departments.

The invention provides a preparation method of a halogen-free flame-retardant polyacrylonitrile fiber. The method mainly comprises the following steps: heating and melting a halogen-free flame retardant containing phosphorus and nitrogen, then stirring and blending with a polyacrylonitrile spinning solution, carrying out wet spinning, and then carrying out cross-linking hydrolysis to obtain the flame-retardant polyacrylonitrile fiber. According to the preparation method disclosed by the invention, the halogen-free organic phosphorus-nitrogen flame retardant can be uniformly and stably dispersed in the spinning solution, so that a hole blocking phenomenon is effectively avoided during spinning, and the period of replacing a nozzle during spinning is greatly prolonged. Meanwhile, chemical modification of crosslinking and alkaline hydrolysis is further carried out on the surface of the fiber after a hot drafting procedure in a spinning process of the flame-retardant acrylic fiber, the flame retardance LOI of the prepared acrylic fiber is larger than or equal to 26%, and the hygroscopicity of the acrylic fiber is improved.

The invention discloses a food box device capable of preserving heat through excess heat of cooking oil fume. The device comprises a fan housing, wherein the big end of the air housing is clamped intoan oil storing groove, and the upper small end is connected to a fan barrel body; a filtering net is arranged between the lower end of the fan barrel body and the small end of the fan housing; an airoutlet of a fan is movably connected to an inlet of an air filter; an outlet of the air filter is connected to one end of a heating pipe of a food box through a pipeline; two ends of a spiral pipe are correspondingly connected to two ends of a heat preserving pipe; the heating pipe and the heat preserving pipe are arranged in an interlayer of a groove body which is fixedly connected to the upperpart of a frame, and a storing rack is arranged at the lower part of the frame. The food box device is compact in structure, reasonable in design, and unique and novel in idea; the oil fume and the heat are pumped as blades rotate; oil is removed by secondary filtering; hot air is transferred to heat the spiral pipe, and hot water in the spiral pipe is capable of preserving the heat of foods in aheat preserving groove. Therefore, the energy is saved; in addition, the filtered oil can be recovered, thus the waste recovery cost is increased; the hot air is recovered through the excess heat andis used as energy for heating the food groove; the running cost of a catering enterprise is decreased, and meanwhile, the air pollution is reduced; the effect is obvious; the food box device has a good application prospect and is worthy of popularization.

The invention belongs to the technical field of fiber production and manufacturing, and relates to an efficient production and manufacturing method and equipment for lyocell fibers. A spinning stock solution prepared by dissolving is added into a screw extruder, is sheared and dissolved at a certain temperature and then is sprayed out after passing through a filter, a static mixer, a metering pump and a spinning assembly; sprayed tows are oriented and stretched in air and then enter a coagulating bath; due to solvent diffusion, the solvent concentration is reduced, cellulose is separated out, and the tows are coagulated and formed; then water washing, oiling and drying post-treatment procedures are carried out; and next, inspecting and packaging are performed to obtain short fibers.

The invention relates to a light high-strength sandwich composite board and a production method thereof. The sandwich composite board is formed by pressing and connecting a laminated non-woven fabric layer, a prepreg tape layer, a light felt layer, a waste prepreg tape scrap layer, a light felt layer, a prepreg tape layer and a laminated non-woven fabric layer which are sequentially arranged from top to bottom. According to the light high-strength sandwich composite board, the high strength of prepreg tapes, the lightness of felt and filling of waste prepreg tapes are used, the waste prepreg tapes are changed into wealth, the utilization rate of the prepreg tapes is increased, resources are saved, and the cost is reduced. The density of the produced board is in a range of 1-1.2 g/cm<3>, the bending strength is higher than 70 MPa, the bending modulus is higher than 6 GPa, and the board can be applied to fields of building, transportation and the like and has the broad market prospect.

The invention relates to the field of environment-friendly recycling, in particular to a recycling device of an oiliness plastic bag. The technical problem to be solved is to provide a recycling device of an oiliness plastic bag. The recycling device of the oiliness plastic bag includes a transporting cutting mechanism, a deoiling separation breaking mechanism, a working table, a device protectiveshell, a plastic bag, and a control display screen. The transporting cutting mechanism and the deoiling separation breaking mechanism are arranged in the working table, the upper part of the workingtable is connected with the device protective shell, the transporting cutting mechanism is connected with the plastic bag, and the working table is connected with the control display screen. Accordingto the device, the problem that the oiliness plastic bag can not separate inner oiliness liquid so that the oiliness plastic bag can not be recycled is solved, and the purpose of protecting an environment can be achieved.

The invention discloses an innocent treatment method of waste incineration flying ash, comprising the following steps: S1, pretreatment, evenly mixing waste incineration flying ash with fluxing agent,performing pelletizing treatment to obtain flying ash pellets, and further mixing the flying ash pellets with combustion improver to obtain mixture evenly; S2, self-propagating pyrolytic incineration, placing the mixture in a self-propagating pyrolytic incineration device to execute self-propagating pyrolysis treatment, wherein the self-propagating pyrolysis refers to that heat propagates by itself through materials to execute pyrolysis under the premise that the materials are not turned over; S3, washing, grinding incineration residues into residue powder in grain size of not more than 20 meshes, mixing the residue powder with water according to solid-liquid mass ratio of 1:4-8, stirring and pulpifying, standing and precipitating, separating and filtering to obtain washing liquid and washing filter residue. The method provided by the invention completely decompose Dioxin and heavy metal ions in the waste incineration flying ash, can realize innocent treatment of the waste incineration flying ash, simultaneously can remove most soluble salt, chlorine, and so on, in the residues, and can realize comprehensive utilization of the residues.

The invention discloses a method for preparing an ultralow-mercury catalyst by recycling waste batteries. The method comprises the following steps of: by taking battery powder obtained by disassembling waste batteries as a raw material, performing extraction with diluted hydrochloric acid under an oxidation condition to obtain extract liquor; and adding a regulator according to the weight ratio, adjusting the ratio of main elements including mercury, zinc, manganese, copper, cadmium, nickel and cobalt in the extract liquor to be (3-5): (2-6): (2-6): (1-5): (1-5): (0.1-2): (0.1-2) to obtain an adjusted solution, adding activated carbon, soaking the activated carbon, and drying a product to obtain the ultralow-mercury catalyst for vinyl chloride synthesis catalysis. Valuable metal elements in the waste batteries are separated, the vinyl chloride synthesis catalyst is prepared, and recycling of the waste batteries is achieved.

The invention belongs to the technical field of pigment preparation, and particularly relates to a method of producing an oil-dosage-form aluminium powder pigment by utilization of inorganic membrane filtration and a device for the method. The production device comprises a grinding device, a sieving device and a separating device, wherein the sieving device and the separating device are connected after the grinding device in sequence. The separating device is a built-in type inorganic membrane separator. The inorganic membrane separator with a special structure is adopted to perform solid-liquid separation, thus achieving simultaneous performing of separation and purification of solvent oil, guaranteeing the product quality, simplifying processes at present, largely reducing the energy consumption in processes and saving the production cost.

The present invention relates to a method for separating hemi-fiber and fiber from plant stalk. Said method includes the following steps: soaking the fibrous material in dilute sulfuric acid, using drum to roll the fibrous material and remove the most of acid liquor, then heating the fibrous material and placing the fibrous material into a closed large container, heat-insulating, after a period of time, adding warm water and utilizing column extractor to make extraction so as to obtain the invented hemi-fibre and fiber.

The invention relates to a vermiculite surface in-situ grown potassium niobate material and a preparation method thereof.The preparation method includes: adopting a one-step hydrothermal method; placing vermiculite in a solution containing potassium hydroxide and niobium pentachloride; controlling nucleation and growth of KNbO3 on vermiculite by controlling reaction temperature and time, wherein potassium niobate grows on the surfaces of inner and outer layers of two-dimensional layered vermiculite in-situ through a one-dimensional needle-like structure to form a KNbO3/VMT material of a three-dimensional material, and KNbO3 and vermiculite interact through chemical bonds, so that adhesion force is large.The preparation method is simple and convenient in process.The material can be used as a photocatalytic material.The problem that reaction raw materials are prone to loss, difficult to store and separate and high in recovery cost due to the fact that only KNbO3 powder can be adopted as a catalyst in the past is solved.

The invention discloses a thermal-insulated hybrid coating containing waste polystyrene foam plastic. The coating is prepared from raw materials as follows: perfluoroalkyl alcohol, methyl isobutyl ketone, HDI tripolymer, methyl methacrylate, styrene, hydroxyethyl methacrylate, tridecafluorooctyl methacrylate, benzoyl peroxide, methanol silica sol, propylene glycol methyl ether acetate, waste polystyrene, maleic anhydride, hexadecyl trimethyl ammonium chloride, an emulsifier OP-10, rosin, ferrite powder, a proper amount of 5% ammonia water, a proper amount of mercaptoalkylalkoxysilane, a proper amount of dimethyl silicone, a proper amount of 10% dibutyl tin dilaurate, a dispersant, a flatting agent, a defoaming agent, a proper amount of butyl acetate, a proper amount of 20% alkali liquor, ethyl acetate, a proper amount of dichloromethane, a proper amount of acetone and a proper amount of deionized water. The prepared coating has good hydrophobic and oleophobic effects, good thermal-insulated effects and high adhesion, is simple in preparation process and has better practical application prospects.

The invention provides a full-plant-fiber pulp-molded buckle. The full-plant-fiber pulp-molded buckle comprises a primary buckle body and a secondary buckle body, and the primary buckle body and the secondary buckle body are made of full-plant-fiber pulp or pulp made of recycled paper products. The full-plant-fiber pulp-molded buckle is designed and developed, is used for connecting and supporting a storage rack and can replace part of metal or plastic buckles, and the technical problems that metal or plastic buckles in the background art are troublesome to disassemble and need to be classified for the second time in the using process of part of storage racks, consequently, the recovery cost is increased, the cost is high in sustainable economic development, plastic buckles and part of storage racks are combined for supporting, bearing faces are formed for supporting placed objects, however, the storage racks and the plastic buckles are not made of the same material and cannot be naturally degraded, and consequently environmental pollution is serious are solved.

The invention discloses a kitchen fume sucking and recycling device. The kitchen fume sucking and recycling device comprises a fan cover, wherein an oil storage tank is clamped on the big end of the fan cover, a fan cylinder is connected to the small end of the upper part of the fan cover, a filter screen is arranged between the lower end of the fan cylinder and the small end of the fan cover, anair outlet of a fan is movably connected with an inlet of an air filter, an inlet pipe is connected to the outer bottom of a housing of the air filter in a penetrating mode, an oil storage pipe is connected to the side of the housing of the air filter in the penetrating mode, a spiral pipe is arranged on the outer wall of the housing, and a connecting end cover is spirally sealed on an upper end opening of the housing. The kitchen fume sucking and recycling device has the advantages of compact structure, reasonable design and unique and novel concept; blades rotate to suck fume and heat, secondary filter is realized so as to remove oil, the spiral pipe is heated by hot air through a transfer layer, and hot water in the spiral pipe is used, so that energy is saved; in addition, filtered oilcan be recycled, so that the waste recovery cost is increased, and air pollution is reduced.

It is an object of this invention to efficiently recycle a plastic resin material used in a process cartridge. To achieve this object, in a method of recycling a plastic material of a process cartridge, the process cartridge is crushed in a crushing step while particles such as toner are collected by suction, particles including toner are further separated in a screening step, metal materials are separated in a magnetic selection step, a drum magnetic selection step, and an eddy current step, particles including toner and foreign matter are separated in an air selection step, a secondary crushing step, a peeling step, and a dry gravity separation step, and a plastic material having a specific density is separated in a color selection step.