84 results about "Turpentine" patented technology

The utility model relates to the technical field of turpentine recovery, and discloses a turpentine processing waste recycling device which comprises a recovery cylinder, the lower surface of the recovery cylinder is fixedly connected with a first motor, the output end of the first motor is fixedly connected with a centrifugal cylinder, and the lower end of the left side surface of the recovery cylinder is fixedly connected with a discharging pipe communicated with the interior of the recovery cylinder. Two filter plates are movably connected to the upper surface of the discharge pipe from left to right in a penetrating manner; racks are fixedly connected to the upper ends of the filter plates, and a driving mechanism is arranged at the position, between the two filter plates, of the upper surface of the discharging pipe; according to the turpentine recycling device, the scraping mechanism is arranged, and a spring in the scraping mechanism is stretched under the action of centrifugal force, so that a scraping plate is attached to the inner wall of the recycling barrel, and adhered turpentine is removed; impurities in rosin are filtered through filter plates, a second motor drives a gear to rotate, and staggered lifting of two racks can be realized, so that the two filter plates are quickly switched for use, and blockage caused by long-time use of the same filter plate is avoided.

The utility model discloses a horizontal condenser which comprises a shell and a heat exchange pipe, fixing plates are arranged on the two sides of the heat exchange pipe, a plurality of sets of baffle plates are arranged between the two fixing plates, cold fluid pipes are arranged on the two sides of the shell, an air inlet assembly is arranged on the top of the shell, and a liquid discharging assembly is arranged at the bottom of the shell. The air inlet assembly comprises an air inlet pipe arranged on one side of the top of the shell, a backflow pipe arranged on one side of the air inlet pipe and a check valve arranged on one side of the backflow pipe. Through the arrangement of the gas inlet assembly and the liquid discharge assembly, the baffle plate can improve the condensation effect of turpentine gas, the drainage groove can increase the contact area of the turpentine gas and the baffle plate, and the problems that an existing horizontal condenser is low in condensation efficiency, low in turpentine extraction efficiency and high in efficiency are solved. The problems that a mixture of water vapor and turpentine is condensed in the advancing process, part of turpentine is not condensed completely, if the turpentine is not distinguished, the uncondensed turpentine volatilizes, and the extraction effect is affected are solved.

The invention discloses a green production process for synthesizing 1, 8-terpineol and preparing perfume-grade terpilenol by dehydrating the 1, 8-terpineol, which comprises the steps of hydration reaction, centrifugal separation, acid water recovery, by-product recovery, dehydration reaction and secondary distillation. Wherein the turpentine hydration reaction conditions are as follows: a catalyst is composed of alpha-hydroxy acid and phosphoric acid or boric acid, intermittent stirring is performed at room temperature, the reaction is performed for 2-15 days, an IBC ton barrel can be adopted as a reaction tank, and the mass yield of terpin hydrate is greater than 100%. Citric acid or tartaric acid is adopted to catalyze the dehydration reaction of terpineol hydrate, and the selectivity of terpineol can reach 91% or above. Compared with a traditional process, the method has the advantages that the catalyst is low in corrosivity and does not need an enamel reaction kettle; the reaction is carried out at room temperature, and no cooling equipment is needed; centrifuging to obtain terpin hydrate crystals without alkali neutralization; acid water is easy to recycle, and almost no wastewater is discharged; an IBC barrel is used as a reactor, so that the equipment investment is low.

The present invention provides a thin-layer identification method for pinecone formula granules, comprising: A) taking a test sample, and after pretreatment, obtaining a test solution; taking a pinosylvin monomethyl ether reference substance, and after pretreatment, obtaining a reference solution; B) taking a reference medicinal material of pinecone, and after pretreatment, obtaining a reference medicinal material solution; C) performing thin-layer chromatography detection on the test solution, the reference solution and the reference medicinal material solution, wherein the thin-layer plate is a silica gel G thin-layer plate; the developing agent is toluene-ethyl acetate-glacial acetic acid; D) examining, in the test chromatogram, if spots of the same color appear at the positions corresponding to the reference medicinal material and the reference substance, it is pinecone formula granules. The thin-layer identification chromatographic method for pinecone formula granules established by the present invention uses, as the identification points, the spots of the same color that appear at the positions corresponding to the reference medicinal material and the reference substance by observing the thin-layer chromatogram, so as to quickly and effectively identify pinecone formula granules.

The invention discloses a plant cell extract-containing traditional Chinese medicine aromatic penetration enhancer and a preparation method thereof, and the penetration enhancer comprises the following components in parts by mass: 8-15 parts of storax nano-vesicles, 3-8 parts of agilawood nano-vesicles, 1-5 parts of refined turpentine, 0.5-3 parts of panax notoginseng saponins, 0.5-3 parts of rhododendron dauricum oil and 20-35 parts of grape seed oil, the storax nano-vesicles and the agilawood nano-vesicles are exosome-like nano-vesicles extracted from plant secretion, and the particle size of the vesicles is 50-200 nm. Skin interstices are opened, skin meridians and blood are dredged, and accordingly relieving, inflammation resisting, redness improving and skin barrier repairing are achieved.

The invention discloses a turpentine oil extraction device, and relates to the technical field of turpentine oil extraction. The turpentine oil extraction device comprises a feed port, a feed port, a residue discharge port and an oil outlet valve which are arranged on an extraction tank, a filter screen is arranged at an inlet of the oil outlet valve, a lifting disc is connected in the extraction tank through a lifting mechanism, a plurality of filter holes arranged in an array are formed in the top of the lifting disc, a rotating cover is rotationally connected to the top of the extraction tank, and the rotating cover is arranged in the extraction tank. A plurality of rectangular pipes are fixedly inserted into the side wall of the rotating cover, a plurality of round pipes are fixedly inserted into the bottom of each rectangular pipe, the round pipes are inserted into the filter holes, and a uniform feeding mechanism is arranged at the bottom of the lifting disc. According to the turpentine oil extraction device, when raw material turpentine is fed into the extraction tank through the feeding port, the turpentine entering the extraction tank is more uniformly dispersed and is prevented from being accumulated, the dissolution efficiency and effect can be improved, and then the turpentine oil extraction efficiency and effect are improved.

The invention relates to the technical field of pulping and paper-making factory equipment, and particularly discloses a turpentine recovery system of a pulping and paper-making factory, which comprises an evaporation heavy-dirt condensate water tank, the lower part of the evaporation heavy-dirt condensate water tank is connected with a heavy-dirt water pump through a pipeline, and the heavy-dirt water pump is connected with a condensate water cooler through a pipeline; the condensate water cooler is connected with the bottom of the turpentine separator through a pipeline, an overflow pipe is arranged at the top of the turpentine separator, a regulating valve is arranged on the overflow pipe, and the overflow pipe is connected with the turpentine tank through a pipeline; the bottom of the turpentine separator is connected with a U-shaped pipe, the liquid outlet end of the U-shaped pipe is connected with the heavy-pollution condensate water tank, and a U-shaped elbow of the U-shaped pipe is higher than the ground relative to the liquid inlet end and the liquid outlet end of the U-shaped pipe, so that turpentine can be separated through an overflow pipe at the top of the turpentine separator, but water cannot reach the top of the tank. According to the invention, turpentine in the evaporation heavy sewage tank can be separated, and the evaporation efficiency of the evaporation system is improved.

The utility model discloses a turpentine processing tail gas purification device, which relates to the technical field of turpentine processing and comprises a device shell, a gas inlet pipe and an exhaust pipe, one end of the gas inlet pipe is connected with an activated carbon purification mechanism, and a gas valve is arranged between the gas inlet pipe and the activated carbon purification mechanism. A fixing assembly is movably arranged at the top end of the activated carbon purification mechanism, an extraction mechanism is arranged on one side of the activated carbon purification mechanism, the activated carbon purification mechanism communicates with the extraction mechanism through an extraction pipe, and a sealing mechanism is arranged at the position where the extraction mechanism is connected with the extraction pipe. According to the utility model, through the cooperative arrangement of the extraction mechanism and the sealing mechanism, when the filter element needs to be replaced after long-term use, the air valve is firstly operated to close the connecting channel, then the extraction mechanism is controlled to extract untreated tail gas, then the fixing assembly is disassembled to start the activated carbon purification mechanism, and the inner filter element is replaced; and untreated harmful tail gas is prevented from leaking.

The present invention discloses a micro / supergravity-microinterface jet-type self-rotating reaction device for enhancing the catalytic hydrogenation of heavy turpentine / resin oil. The reaction device comprises: a heat exchanger; a super / microgravity-microinterface reactor disposed within the heat exchanger; and a fluid conveyor, wherein the material inlet is connected to the fluid conveyor. Also disclosed is a method for using the micro / supergravity-microinterface jet-type self-rotating reaction device for enhancing the catalytic hydrogenation of heavy turpentine / resin oil. The present invention utilizes the self-rotating circular flow of the materials participating in the reaction within the reaction device to generate centrifugal force, thereby overcoming gravity to form a super / microgravity-microinterface field, thereby causing the heterogeneous reaction materials to form millimeter- or micrometer-sized droplets and bubbles. The collective scale of the gas-liquid and gas-liquid-liquid interfaces is efficiently controlled from the milli-centimeter level to the micrometer level, effectively promoting interphase mixing and enhancing the transfer process of the heterogeneous reaction materials.

The invention belongs to the technical field of traditional Chinese medicine preparations, and particularly relates to traditional Chinese medicine compound paste for treating spinal lesions and a preparation method thereof.The traditional Chinese medicine compound paste is prepared from rhizoma drynariae, rhizoma cibotii, herba taxilli, fructus amomi, cortex cinnamomi, tripterygium wilfordii, radix aconiti carmichaeli, garden balsam stem, poria cocos, rhizoma polygonati, propolis, turpentine and traditional Chinese medicine fermentation components, the black sesame, the cornu cervi pantotrichum slices, the earthworms and other traditional Chinese medicines after fermentation treatment are rich in organic selenium and mineral elements and are used for providing nutrition and promoting metabolism, and the traditional Chinese medicine compound cream prepared through cold soaking, ultrafiltration and oil-water two-phase extraction can effectively retain micromolecule polypeptide and other active substances and achieve a multi-target and high-penetration long-acting transdermal treatment effect.

The invention relates to a method for preparing EPS (Expandable Polystyrene) dissolved and regenerated plastic particles based on a composite solvent, which comprises the following steps of: preparing the composite solvent from an ethyl acetate solvent and a turpentine solvent according to the mass ratio of (3-10): (0-7); crushing EPS, putting the crushed EPS into the composite solvent, and then stirring until the EPS is completely dissolved; the dissolved solution is filtered through a screen, solid impurities are removed, and then the solvent is recovered through distillation; the purified polystyrene solution is dried and converted into solid particles through a spray drying or precipitation method, and the regenerated EPS particles are prepared through an extrusion granulation process. The composite solvent is adopted, the dissolving efficiency is high, the cost is low, the environmental protection property is good, the high-purity polystyrene solution is obtained through filtering and purifying, the regenerated EPS particles are more excellent in performance, and the whole preparation process is simple and suitable for industrial production.

The invention relates to a compound turpentine liniment as well as a preparation method and application of the compound turpentine liniment. Comprising the following preparation raw materials in percentage by mass: 8 to 12 percent of turpentine, 45 to 55 percent of glycerol, 12 to 18 percent of cyperus esculentus extract, 5 to 10 percent of soft soap, 0.5 to 1.5 percent of camphor, 0.1 to 1 percent of glucosamine, 0.5 to 2 percent of chondroitin sulfate, 0.1 to 1 percent of dimethyl sulfone, 0.5 to 2.5 percent of oil-soluble azone, 0.1 to 1 percent of lauramide propyl amine oxide and 12 to 20 percent of purified water. The cyperus esculentus extract prepared by the preparation method disclosed by the invention is compounded with the turpentine for use, a certain synergistic effect exists between the cyperus esculentus extract and the turpentine, the effect of reducing inflammatory factors in serum of the compound turpentine liniment can be improved, and the high-temperature-resistant stability is good; the compound turpentine liniment has an obvious better effect on reducing inflammatory factors in serum, so that a synergistic effect possibly exists between cellulase and mannase, and the compound turpentine liniment has a better curative effect on arthritis.

According to the plaster prepared from the medicinal material of the Chinese fiveleaf schizophragma herb suitable for arthralgia, the Chinese fiveleaf schizophragma herb is used as a monarch drug to play core roles in dispelling wind, eliminating dampness and activating meridians to stop pain, and is matched with ministerial drugs such as garden balsam stems, ligusticum wallichii and angelica sinensis to form a synergistic effect of promoting blood circulation to remove blood stasis and warming channels to dispel cold; multi-target intervention is realized aiming at the pathological mechanism of wind, cold, dampness and blood stasis of arthralgia; by adopting ultrasonic extraction and CO2 supercritical extraction technologies, effective components in the medicinal materials are fully extracted, and by combining eucalyptus oil and turpentine penetration enhancers, the transdermal absorption efficiency of the medicine is improved; through a low-temperature mixing process and an elastic non-woven fabric carrier, the damage of high temperature to active ingredients is reduced, and meanwhile, the air permeability is guaranteed; the drug effect intensity can be adjusted in a targeted manner through different proportioning schemes, for example, the 5% formula of the fiveleaf schizophragma root is suitable for strong pain relieving in the acute stage, and the 1% formula of the fiveleaf schizophragma root is suitable for maintenance treatment in the chronic stage, and the individualized medication requirement is met.

The utility model discloses a turpentine condensing device, which belongs to the technical field of turpentine condensation and comprises a platform, a condensing barrel arranged at the upper end of the platform and used for condensing turpentine and four condensing pipes arranged in the condensing barrel and used for condensing. A sleeve ring is welded to the inner wall of the condensation barrel, a connecting barrel is welded to the bottom end of the sleeve ring, a rotating motor is installed on the inner bottom wall of the connecting barrel, a rotating rod of a hollow structure is installed at the driving end of the rotating motor, a plurality of sliding grooves are formed in the periphery of the rotating rod, and a telescopic rod is installed on the inner top wall of the rotating rod. According to the turpentine condensing device, the contact area of turpentine and the condensing pipe is increased, heat dissipation is accelerated, turpentine on the inner wall of the condensing pipe and the inner wall of the condensing barrel is automatically scraped off, and the use efficiency is improved.

[Problem] To provide a composition which can be used for a developing solution in lithography, a fuel for combustion, or the like. [Solution] The present invention comprises a liquid and a metal, wherein the liquid includes at least one substance selected from the group consisting of fatty acids, furan derivatives, and turpentine derivatives, and the metal content is not more than 10 ppb.

The invention belongs to the technical field of chemical synthesis, and relates to a preparation method of hydrogenated rosin glyceride, which comprises the following steps: adding rosin glyceride and turpentine into a reaction kettle, adding a catalyst, controlling the pressure at 5-10 atmospheric pressure, heating to 160-180 DEG C, reacting for 4-6 hours, and removing a solvent to obtain the hydrogenated rosin glyceride, the catalyst is a Pd-Cu loaded modified SBA-15 molecular sieve-PDMS (Polydimethylsiloxane) catalyst. According to the hydrogenated rosin glyceride prepared by the method disclosed by the invention, the weight yield is 95% or above, and the content reaches 99.1%-99.9%; the softening point is 120 DEG C or above; after long-term storage for 12 months, the quality is stable.

The application discloses a turpentine production distillation device and relates to the technical field of turpentine production. The turpentine production distillation device comprises a pretreatment tank and a cover plate rotating at the bottom of the pretreatment tank, the top of the pretreatment tank is connected with a mounting cover through a lifting mechanism, the mounting cover is rotationally connected with a rotating disc, a plurality of mixing grooves are formed in the top of the rotating disc, L-shaped pipes are fixedly arranged at the bottom of each mixing groove, and a first feeding mechanism for feeding turpentine raw materials into the mixing grooves is arranged at the top of the pretreatment tank. The turpentine production distillation device is convenient for flocculation operation on raw materials before distillation, the mixing efficiency is higher, the mixing effect is better, the flocculation efficiency and effect are improved, after flocculation is completed, the upper turpentine phase, the middle water phase and the lower impurity layer can be separately discharged, the lower impurity layer can be extruded, raw material waste is avoided, and transportation and disposal are facilitated.

The utility model discloses a grease turpentine water washing impurity removal tank which comprises a box body, the top of the box body is communicated with a material pipe, the bottom of the box body is fixedly connected with a first electric push rod, the bottom end of the first electric push rod is fixedly connected with a lifting plate, and the top of the lifting plate is rotationally connected with a rotating rod. The top end of the rotating rod penetrates through and extends into the box body, the bottom of the lifting plate is fixedly connected with a motor, an output shaft of the motor is fixedly connected with the rotating rod, and the top of the rotating rod communicates with three groups of stirring rods which are annularly distributed. According to the cleaning device, the effect of separating the grease turpentine from cleaning water can be achieved while the grease turpentine is cleaned and impurities are removed, then the steps of using the grease turpentine by a user are effectively reduced, the cleaning device is very rapid, the difficulty of the cleaning device is effectively reduced, and then the efficiency of cleaning the grease turpentine by the device is improved.

The utility model discloses a tail gas deodorization device for rosin processing, which belongs to the field of rosin processing and comprises a water spraying tank, a liquid medicine atomizing device is arranged on one side of the water spraying tank, a waste gas inlet is arranged on one side of the water spraying tank, and a dust particle filtering device is arranged on one side of the waste gas inlet. The dust particle filtering device comprises a vent groove connected to the waste gas inlet end and a plurality of HEPA filter screens located in the vent groove. Compared with the prior art, the device has the advantages that the dust particle filtering device is additionally arranged in front of the waste gas inlet, dust and rosin in tail gas are filtered through the multiple layers of HEPA filter screens in the vent groove, the phenomenon that the impurities block the liquid medicine atomization device is avoided, the anti-blocking filter screen is installed above the water storage tank of the water spraying tank, and therefore the dust and rosin in the tail gas can be filtered out. And the impurities easy to block are filtered for the second time, so that smooth operation in the liquid medicine atomization device is ensured.

The invention discloses preparation and performance research of a dye-sensitized solar cell photo-anode based on {PW12O40} (at) Cu-Melamine / GO polyacid salt, and relates to preparation and performance research of a solar cell photo-anode. The invention aims to solve the problems of low energy utilization in a visible light region and low cell efficiency caused by compounding of interface photon-generated carriers when a dye-sensitized cell photo-anode is prepared under the conditions of the prior art, and provides a preparation method of a photo-anode capable of improving the performance of a device. The preparation method disclosed by the invention comprises the following steps: 1, preparing polyacid-loaded titanium dioxide nanoparticles by adopting a gel-sol method; 2, preparing a polyacid salt {PW12O40} (at) Cu-Melamine / Go powder body; and 3, preparing a photo-anode (uniformly mixing the modified powder with ethyl cellulose, turpentine alcohol and ethanol, carrying out silk-screen printing to form a film, and then carrying out high-temperature calcination). According to the invention, the photo-anode material capable of broadening spectrum absorption and inhibiting carrier recombination can be obtained.

The invention discloses a medicament tablet which is placed in a medicine storage chamber for a mask, volatile components of the medicament tablet are diffused outwards through breathable meshes in a bottom wall, and the medicament tablet is prepared from the following raw materials in percentage by mass: 5-40wt% of menthol, 5-40wt% of menthol, 5-40wt% of menthol, 5-40wt% of menthol, 5-40wt% of menthol, 5-40wt% of menthol and the balance of water. 5 to 25 wt% of borneol; 8 to 15 weight percent of camphor; 10 to 50 wt% of eucalyptus oil; 2 to 10 weight percent of wintergreen oil; 5-10 wt% of turpentine oil; 1-5 wt% of clove oil; 1 to 3.5 wt% of orange peel; and 0.5 to 2.1 wt% of bergamot. According to the present invention, when the air purification material is applied to the mask, the harmful substances such as pathogenic bacteria, dust, PM2.5 and the like in the air can be adsorbed and filtered while the pathogenic bacteria can be effectively inactivated.

The invention belongs to the field of leather manufacturing and processing, discloses a microemulsion leather degreasing agent and a preparation method thereof, a disclosed microemulsion leather degreasing agent and a preparation method thereof adopt nonionic surfactant, anionic surfactant, short-chain alcohol, turpentine as raw materials, first nonionic surfactant, anionic surfactant, short-chain alcohol, turpentine are mixed in proportion, and then NaCl solution is slowly added dropwise thereto and stirred until a transparent and uniform solution is formed to obtain the microemulsion leather degreasing agent. The present invention uses anionic surfactant and nonionic surfactant in combination to prepare a microemulsion leather degreasing agent, the degreasing agent has lower surface tension, can effectively reduce the oil content of crust leather, and the preparation method is simple, raw materials are easily available, conditions are mild, low energy consumption, and has good application prospects.

The invention discloses an environment-friendly multifunctional herbicide and a preparation method thereof. The environment-friendly multifunctional herbicide comprises red oil and / or acid water separated during synthesis of 1, 8-terpin from turpentine; the red oil is pinene and isomerization or addition byproducts thereof, and comprises one or more of tricyclene, camphene, carene, limonene, cymene, terpinene, isoterpinene, phellandrene, 1, 4-cineole, 1, 8-cineole, fenchene, fenchol, isoborneol, borneol, 4-terpilenol, beta-terpilenol, alpha-terpilenol and gamma-terpilenol. Compared with turpentine, the herbicide has a broad-spectrum and efficient killing effect and also has killing and repelling effects on pests, and meanwhile, the compounds are easy to naturally degrade in the environment and are non-toxic to human.

The present application relates to nematode disease prevention and treatment agent technical field, especially to a kind of pine wood nematode disease prevention and treatment agent and preparation method thereof, by weight parts, including the following components: sophocarpidine 10-30 parts;Azadirachtin 5-20 parts;Turpentine 40-70 parts;Emulsifier 5-15 parts;Efficiency agent 1-5 parts;Stabilizer 0.5-3 parts, the synergistic effect of sophocarpidine and azadirachtin constitutes the core of the present application;Quinolone ring and pyridine ring structure in sophocarpidine molecule endow it with strong insecticidal activity, mainly by inhibiting acetylcholinesterase to interfere with the nerve conduction of nematode;And the complex triterpenoid structure of azadirachtin can interfere with the hormone system of nematode, inhibit its growth and development and reproduction.The two different mechanisms of action form complementation at molecular level, both can quickly kill nematode, and can long-term inhibit its population growth;Second, turpentine as natural terpene compound, the permeability of other active ingredients is enhanced.

The present invention relates to an emulsion comprising an aqueous phase A and a nonaqueous phase B emulsified with phase A, wherein phase B comprises larch turpentine as component B1 and at least one emulsifier as component B2. The present invention further relates to a topical spray comprising said emulsion, the use of said emulsion in a method of treatment of wounds of a subject, and a process for producing said emulsion.

A bio-based cleaning solvent comprising a mixture of ethyl acetate and crude turpentine.

The utility model discloses a turpentine recycling device, which belongs to the technical field of turpentine treatment, and comprises a bottom plate, a collecting tank is fixedly mounted on the upper surface of the bottom plate, a booster oil pump is fixedly mounted on the upper surface of the bottom plate, the input end of the booster oil pump is fixedly communicated with a liquid pumping pipe, a liquid injection hopper is arranged above the bottom plate, and the liquid injection hopper is fixedly communicated with the liquid pumping pipe. The top end of the liquid pumping pipe penetrates through the liquid injection hopper and extends into the liquid injection hopper, the top end of the liquid pumping pipe is fixedly connected with a filter screen plate, the effect of injecting turpentine oil is achieved through the arranged liquid injection hopper, meanwhile, the turpentine oil in the liquid injection hopper can be pumped through cooperation of a booster oil pump, the liquid pumping pipe and a liquid discharging pipe, and therefore the turpentine oil can be conveniently injected into the liquid injection hopper. The turpentine can be continuously filtered and discharged into the lower filter cover through pressurization, double filtration can be performed through a primary filter plate and a high-efficiency filter plate, and through arrangement of a liquid conveying pipe and a collecting tank, the turpentine subjected to continuous filtration can be collected and treated, and then the turpentine can be continuously pressurized, filtered and collected.

The invention relates to a natural pharmaceutical composition for prevention and treatment of gastric ulcer and a preparation method of the natural pharmaceutical composition. The natural pharmaceutical composition comprises active natural medicinal ingredients. It is composed of turpentine oil, black seed oil, vitamin D and hyaluronic acid. The natural pharmaceutical composition provides a significant synergistic effect, combining anti-inflammatory, antibacterial, and gastroprotective properties, while also ensuring cost-effectiveness and minimal side effects compared to conventional treatments. Beside gastric ulcer is effective in relief of symptoms associated with gastric ulcer. The natural composition has the advantages of accurate curative effects, preparation stability, simplicity and feasibility in process and suitableness for industrial production.

The invention discloses a high-density low-freezing-point turpentine-based ring-linked compound and a preparation method and application thereof, and the structural formula of the high-density low-freezing-point turpentine-based ring-linked compound is shown in the specification. The high-density and low-freezing-point turpentine-based ring-linked compound disclosed by the invention not only has relatively high density and heat value, but also has an extremely low freezing point, and can be used as high-density aviation fuel oil; the synthetic process is simple and novel, the product yield is high, the controllability of the reaction process is high, the catalyst is simple and easy to obtain, the economical efficiency is high, and a new thought is provided for preparation and application of turpentine-based high-density aviation fuel and high value-added utilization of turpentine.

The utility model relates to the technical field of vacuum buffer tanks, in particular to a vacuum buffer tank for extracting turpentine, which comprises a buffer tank body, the top end of the buffer tank body is communicated with a vacuumizing pipe, and the middle part of the bottom end of the buffer tank body is communicated with an injection pipe; a condensation mechanism is arranged in the middle of the inner side of the buffer tank body, and an anti-blocking mechanism is arranged at the upper end, close to the condensation mechanism, of the buffer tank body. According to the buffer tank, the movable disc with the hole, the cold guide groove, the sleeve rod and the spring are used in cooperation, when a compression pump injects gas into the buffer tank body from the injection pipe, due to the fact that the air pressure of the lower end of the cold guide block is larger than that of the upper end of the cold guide block, the sleeve rod is jacked by the entering gas till the sleeve rod retreats from the upper end of the cold guide groove and compresses the spring; during use, external gas is reversely injected into the buffer tank body from the vacuumizing pipe, the compressed spring rebounds to control the sleeve rod to be inserted into the cold guide groove from top to bottom, and an oil film formed in the cold guide groove is discharged from the bottom end, so that blockage can be avoided.