36results about How to "Economic recycling" patented technology

A manually operated trigger sprayer is constructed with a reduced number of parts and in a novel manner in which all of the component parts of the sprayer are constructed of a plastic material. The construction of the trigger sprayer replaces the conventional metal coil spring in the pump chamber with a pair of plastic bowed springs that are integral with the piston rod and are positioned outside the pump chamber. Constructing all of the sprayer parts of a plastic material enables a cost efficient recycling of the parts, which does not require disassembling the parts to remove a metal spring.

The invention provides a recovery method for palladium from lapsed Pd-C catalyst. With alkali or alkaline earth carbonate as an additive, in 700 to 800 Deg. C, oxygenizing and burning the lapsed Pd-C, refined residue reacting with alkali bisulfate and generating soluble palladium salt, then separating palladium by electrolysis, the single-pass recovery ratio can achieve more than 94 percent, and the purity is 99.95 percent.

The invention provides a post-processing method for polypropylene powder, which belongs to the petroleum chemical field. In the polypropylene post-processing method of the prior art, the method comprises the following steps: polypropylene powder which departs from a polymerization system and is carried out preliminary gas/solid separation enters into a drier, indirectly heated through steam and nitrogen is introduced, hydrocarbons can be removed in powder and then enters in a steamer, nitrogen and water vapor are introduced for inactivation of a catalyst; or the polypropylene powder which departs from a polymerization system and is carried out preliminary gas/solid separation enters into a degassing chamber, water vapor-containing nitrogen is introduced in the degassing chamber; the present invention modifies the prior art. The post-processing method of the invention comprises the following steps: introducing water vapor, modifying the drier to a steam drier used for recovering hydrocarbons and inactivating the catalyst, introducing a hydrocarbons-removed polymer in the steam drier (or a degassing chamber), adding nitrogen without water vapor in the steam drier, modifying the steam drier to a moisture eliminator used for removing water vapor in powder. The method of the invention is capable of thoroughly recovering hydrocarbons which depart from the polymerization system by an economic method, reducing the unit consumption and energy consumption, and thoroughly solving the problem on environmental protection.

One or more water- and oil-porous containers or sacks are made of a pair of mesh sheets affixed together and stiffened around their perimeter. The sacks can be partially filled with a multitude of tubular bodies made of an oil-entrapping polymer, which have their longest dimension parallel to an axial hole. A preferred material is composed of a combination of SBS and EPDM, formed by an extrusion technique, to create highly fissured generally cylindrical bodies. The sacks may be deployed in areas where oil is floating on water, such as where oil has spilled from tankers on oceans, seas, lakes, or rivers. When the bodies are afloat, oily water can pass through the axial holes of and around the bodies, maximizing the surface area contacted by the oil and minimizing gel blocking. After a time sufficient for the bodies in the sacks to adsorb oil, the sacks can be collected. Various deployment and collection methods are disclosed. After collection, the oil may be recycled; alternatively the sacks may be incinerated, to recover the energy content for use as power while disposing of the oil.

A method and apparatus for cooling liquids, specifically beer, is disclosed. The method and apparatus utilize fluid carbon dioxide injected into a cooling apparatus. The cooling apparatus is submerged vertically in the beer when it is contained in a tank with the aim of cooling it.

The invention relates to a desulphurization and denitrogenation integrated method. The method includes the following steps: putting manganese oxide in two reactors A and B respectively; respectively heating the reactors A and B; feeding flue gas containing SO2 and NOx into the reactor A, and performing reaction at the temperature of 100-700 DEG C to obtain desulphurized tail gas I and desulphurized manganese ore; mixing the desulphurized tail gas I with NH3 prior to feeding the mixture into the reactor B, and performing reaction in the temperature range of 50-400 DEG C to obtain desulphurized and denitrated tail gas II and denitrated manganese ore; discharging the desulphurized manganese ore; adding the denitrated manganese ore into the reactor A, and adding fresh manganese oxide into the reactor B; cycling and repeating in sequence to complete series connection of the desulphurization process in the reactor A and the denitrogenation in the reactor B so as to enable the desulphurization and denitrogenation integrated process to be continuous. The method is high in desulphurization and denitrogenation efficiency, low in cost and good in economic benefit and environmental protection benefit.

The invention relates to a method for recovering precious metal palladium from aniline tar. The method includes the following steps that aniline tar raw materials are heated to 80 DEG C, the PH is adjusted, a precious metal collector is added, constant temperature heating is carried out, stirring is carried out, standing depositing is carried out, cooling and filtering are carried out, filter residues are reserved and burned in a muffle furnace, ash is collected and reserved after burning is complete, mixed acid is added, boiling is carried out after stirring, complete dissolving is carried out, cooling and filtering are carried out, filter residues are collected and treated, filter liquor is reserved and is subject to concentration and nitre expelling, then iron replacement is carried out, cooling and filtering are carried out, filter liquor is subject to secondary recovering, filter residues are reserved and washed until water obtained after washing is neutral, filter residues are dried, coarse palladium is obtained, and the coarse palladium is refined to obtain sponge palladium. The method has the beneficial effects that the problem of losses of the palladium in the burning process is solved, the problem that palladium oxide is generated in the burning process is solved, the metal palladium recovering rate is improved, the recovering cost is reduced, and the recovering period is shortened.

The invention discloses a treatment method of third phases in a wet metallurgy extraction system. The method is characterized by comprising the following steps that a, extraction agents are added intothe third phases in the wet metallurgy extraction system; stirring is performed; b, acid is added into a mixture obtained in the step a for performing back extraction; c, a mixture obtained after back extraction in the step b is subjected to phase splitting. The treatment method has the advantages that material liquid and organic phases carried by the third phases can be economically, simply andconveniently recovered in an environment-friendly way; the loss caused by a third phase extraction system is reduced.

Disclosed is a method for recycling silicon cutting waste mortar. The method comprises the steps of performing solid-liquid separation of the waste mortar; performing solid flow washing and vacuum filtration; drying the obtained filter cake, mixing with deionized water and performing activation reaction; adding water glass and sodium hydroxide successively and performing heating reaction, performing solid-liquid separation of the obtained product, performing ion exchange resin decolorization and distillation of the liquid phase to obtain silica sol, and performing solid phase washing and drying to obtain a silicon carbide raw material; and performing ultra precision filter of obtained liquid phase after solid-liquid separation of the waste mortar, adding a decoloring agent a filter aid to perform solid-liquid separation, reducing the conductivity, and heating and evaporating water to obtain finished polyethylene glycol cutting liquid. According to the technical scheme of the method, the flow line production is achieved, the silicon cutting waste mortar is recycled, the silica sol is prepared effectively, and the environmental pollution is reduced.

The invention discloses a heat pipe type anti-adhesion crude gas waste heat recycling system, and belongs to the field of technologies for recycling crude gas waste heat in coking technological procedures. The heat pipe type anti-adhesion crude gas waste heat recycling system comprises a riser, a heat pipe heat exchange device and a special-shaped connecting pipe. A riser extension section is arranged on the top of the riser in the vertical direction and is communicated with the special-shaped connecting pipe via the heat pipe heat exchange device; optional heat exchange devices in the riser are omitted. The heat pipe heat exchange device comprises a heat-insulation tank, inlets of the heat-insulation tank are formed in the side surfaces of the heat-insulation tank, outlets of the heat-insulation tank are formed in the bottom surface of the heat-insulation tank, the inlets of the heat-insulation tank are connected with the outlets of the heat-insulation tank by a bottom heat-insulation plate which is obliquely arranged, and the bottom heat-insulation plate is detachably fixed to the bottom surface of the heat-insulation tank. The heat pipe type anti-adhesion crude gas waste heat recycling system has the advantage that crude gas waste heat resources can be safely, economically and efficiently recycled by the aid of the heat pipe type anti-adhesion crude gas waste heat recycling system.

The invention discloses a method for treating iron-containing waste sulfuric acid. The method comprises the following steps: adding concentrated sulfuric acid into the iron-containing waste sulfuric acid until the sulfuric acid concentration in the mixed solution is higher than 45wt%; at room temperature, separating out dissolved iron in the mixed solution basically in the form of ferrous sulfate crystal; separating solid and liquid mixtures; discharging solid ferrous sulfate; diluting a part of the liquid or the entire liquid by using water to obtain regenerated diluted sulfuric acid; freezing the other part; subsequently performing solid and liquid separation; discharging water from the solid; taking the liquid as regenerated concentrated sulfuric acid; or directly freezing the solid and liquid mixtures and then performing solid and liquid separation; discharging the water of the solid and the ferrous sulfate crystal; diluting a part of the liquid by water to obtain regenerated diluted sulfuric acid, and taking the other part as regenerated concentrated sulfuric acid. The invention also discloses a device for treating the iron-containing waste sulfuric acid. The sulfuric acid treated by the method and the device disclosed by the invention is basically free of iron component, can be effectively reutilized, is high in concentration and can be used as mixed concentration sulfuric acid or reused for acid washing after being diluted, so that economical and high-efficiency treatment of the waste sulfuric acid is realized.

The invention relates to a logistics package recycling system and a logistics package recycling method, the logistics package recycling system comprises a cloud server, and the cloud server is provided with an information receiving module, a processor module and an information sending module; the system also comprises a recycling device used for recycling a logistics package, collecting information of the logistics package and sending the collected logistics package information to the cloud server; wherein the information receiving module is used for receiving logistics package demand information and logistics package information from the recycling device, and the processor module is used for calculating based on the logistics package information and the logistics package demand information from the recycling device so as to generate matching information of recycled logistics packages and demands. The information sending module is configured to send the matching information to an execution unit. According to the logistics package recycling system, rapid, economical and manageable recycling of logistics packages is achieved.

The invention belongs to the field of fluid machinery and energy recovery. According to the technical scheme, a high-speed centrifugal pump reverse rotation hydraulic turbine device is characterized by comprising a volute, a turbine shaft, a flow guide shell fixed in an inner cavity of the volute, an impeller rotationally positioned in the flow guide shell and connected with the left end of the turbine shaft, and an inducer fixed at the left end of the impeller, wherein a working medium flows along an inlet section of the volute, the inner cavity of the volute, the impeller and the inducer inan inner cavity of the flow guide shell, and an outlet section of the volute in sequence; a plurality of spraying holes are peripherally distributed in the shell wall of the flow guide shell, and communicate with the inner cavity of the volute and the inner cavity of the flow guide shell; an extension section extending into the outlet section of the volute is arranged on the left side end surfaceof the flow guide shell; the inducer is arranged in the extension section; and the axis of the volute, the axis of the flow guide shell, the rotating axis of the impeller, the rotating axis of the inducer and the rotating axis of the turbine shaft are coaxially arranged. The device can be suitable for the working conditions of low flow and high abundant energy, and is high in energy recovery efficiency and reliable in operation.