119 results about "Litharge" patented technology

There is provided a process for recovering high purity litharge PbO from spent lead acid battery paste at low temperatures and the further preparation of highly pure lead oxides and Pb(OH)2.

The invention discloses a plant-growing type eco-concrete. The plant-growing type eco-concrete consists of a concrete framework structure and a culture medium, wherein the concrete framework structure mainly comprises cement, water, rock ballasts and a water reducing agent, the weight ratio of the cement to the water to the rock ballasts is 1:0.28-0.45:4-6.5, and the added amount of the water reducing agent is 1 to 3 percent of that of the weight of the cement; and the culture medium consists of natural soil, a water retention agent and a sustained-release fertilizer in a weight ratio of 1:0.1-0.2:0.01-0.015. A preparation method of the plant-growing type eco-concrete comprises the following steps of: manufacturing the concrete framework structure; maintaining the concrete framework structure; filling the culture medium; sowing grass seeds; covering and compacting the culture medium on the surfaces of the grass seeds; putting precast blocks in a place to be paved; and maintaining the precast blocks until root systems of the grass seeds grow into the soil under the concrete. Compared with the prior art, the plant-growing type eco-concrete has simple materials and a simple structure, and the preparation method is simple and easy to control.

The invention discloses traditional Chinese medicine mask powder for whitening and dispelling freckle, which has the advantages of little toxicity and capability of effectively achieving whitening, dispelling freckle and the like. A formulation for the mask powder comprises 3 to 10 grams of ginseng, 3 to 15 grams of rhizome polygonati, 6 to 15 grams of radix asparagi, 3 to 10 grams of rhizome typhonii, 3 to 10 grams of angelica dahurica, 6 to 15 grams of angelica, 3 to 10 grams of white stiff silkworm, 6 to 15 grams of fructus xanthil, 3 to 10 grams of bletilla, 6 to 15 grams of white gourd seed, 3 to 15 grams of gingko leaf, 3 to 10 grams of fragrant solomonseal rhizome, 3 to 10 grams of puncturevine, 3 to 10 grams of euphorbia lathyris, 1 to 6 grams of pearl powder, 1 to 6 grams of litharge, 3 to 10 grams of mint, 1 to 3 grams of human placenta, 3 to 6 grams of cinnamon, 3 to 10 grams of tasselblower, 3 to 10 grams of leucophanite, 1 to 3 grams of borneol, 10 to 30 grams of green bean powder, and 3 to 10 grams of honey-fried licorice root.

The invention provides a strong plaster for improving immunity and a preparation method thereof, and the strong plaster is characterized in that the strong plaster consists of the following components: the main medicines comprise golden thread, baical skullcap root, dried ginger, amur corktree bark, prepared common monkshood daughter root and pepper with 50-75g for each, the excipients comprise three parts, the first part comprises flos caryophyllata and borneol with 30g-50g for each, the second part comprises frankincense, myrrh, flos caryophyllata, prepared Sichuan pepper, villous amomum fruit, immature bitter orange and green tangerine peel with 70-100g for each and the third part comprises sal ammoniac and Chinese asafoetida with 100g-130g for each. The preparation method thereof is as follows: the main medicines are firstly soaked by using boiled oil, fried and then naturally cooled, then the medicine residues are removed by filtration, and the soaking is carried out by pouring into water after the full and uniform compound with litharge; the first part of the excipients is ground into powder for standby; the second part of the excipients is ground into the powder for standby; the third part of the excipients is arranged in the water for decoction by slow fire, the obtained decoction is poured into the ground powder of the second part of the excipients after the concentration for even stirring, and the mixture is dried in the sun and then smashed into the powder for standby; and an ointment is heated and evenly mixed with the ground powder of the first part and the smashed powder after the drying in the sun, thereby obtaining the immune plaster.

The invention relates to a curing agent for curing / stabilizing silt (sludge) and soft foundation, and the application thereof. The curing agent comprises 5-10 parts of cement clinker, 10-20 parts of aluminium hydroxide, 10-15 parts of quick lime, 1-5 parts of anhydrous gypsum, 50-60 parts of special rock ballast powder, 5-10 parts of sodium silicate, 0.1-3 parts of sodium fluosilicate, 1-3 parts of anionic polyacrylamide, 0.5-1.5 parts of sodium dodecyl benzene sulfonate and 0.3-1.0 part of carrageenan concentration powder; and the curing agent prepared by the components has the pH value of 8-9 and the particle size of 0.005-0.15mm. 5-10% of curing agent is evenly mixed with silt (sludge), and after treatment, the compression strength reaches 0.2-0.4Mpa and the compression strength of seven days reaches 0.9-1.85Mpa, so that the curing agent has the characteristics of excellent waterproof property, water stability and hydraulicity, and can be widely applied to the curing process for a sea reclamation intertidal zone, the curing process for the sludge generated by riverway dredging, the curing and stabilizing treatment for the sludge generated in a sewage treatment plant, the strengthening for the soil of a road soft foundation layer, and the leakage-proof treatment for a mud layer at the bottom of water in a river and a lake.

The invention discloses a separation and recovery method of uranium, thorium and rare earth in monazite slag, namely a method for separating and recovering valuable elements uranium, thorium and rare earth from monazite slag. The method is characterized by comprising the following steps of: acid leaching, filter pressing, washing and extraction of valuable components. According to the invention, the uranium, thorium and rare earth are leached out by weak acid at a low temperature, and the liquid phase and solid phase are easy to separate; the secondary slag is subjected to beneficiation and alkaline decomposition by a beneficiation technology, and closed-loop circular recovery of uranium, thorium and rare earth is realized; and meanwhile, the waste acid of residual liquid is circularly used, the discharge of wastewater is reduced, the consumption of sulfuric acid and new water as well as the wastewater treatment cost are reduced, the production cost is lowered, the recovery rate of the valuable elements uranium, thorium and rare earth is greater than 97%, and the discharge of radioactive wastewater and waste residue is avoided in the whole technology.

The present invention relates to the recovery of high purity litharge from spent lead acid battery paste at a low temperature which does not produce sulfur dioxide. In the process lead acetate is produced which is converted to pure litharge.

The invention discloses a heavy metal zinc polluted soil curing agent taking industrial waste carbide slag as a raw material, which comprises the following components in percentage by mass: 70 to 80 percent of common silicate cement and 20 to 30 percent of industrial waste carbide slag. The cement is a common curing agent for the treatment of heavy metal polluted soil, and the effect of improving the strength of cured soil can be achieved by adding cement powder or cement paste into the polluted soil and fully stirring. When the cement is separately used in a project, the mixing ratio is relatively high and is about 12 to 18 percent. Even so, the strength, durability and curing quality of the cured soil are still difficult to ensure. Aiming at the phenomena, the invention provides a heavy metal zinc polluted soil curing formula taking the industrial waste carbide slag as the raw material. The formula consists of cement, carbide slag and bentonite. By promoting the hydration reaction of the cement and enhancing the Zn<2+> coating capability of crystal, the purposes of reducing the consumption of the cement and improving the curing effect are fulfilled.

The invention provides an energy-saving and environment-friendly building ornament material. For the material, waste rock ballast powder is adopted as a raw material; inorganic bonds, assistants, inorganic pigments, aggregates and / or light fillers are added for preparing a sizing agent, and then blank preparation and curing are carried out so as to obtain the material; the waste rock ballast powder obtained after processing stone materials is adopted as the raw material; the mixing amount of the waste rock ballast powder is large; the source of the raw material is wide; the cost is low; the cyclic regeneration can be realized; waste materials which are different in production places, textures and granular sizes can also be utilized; the waste materials which occupy lands and cause pollution can be changed into wealthy materials and are subjected to secondary utilization, so that the resource regeneration, the resource cyclic utilization and the sustainable development in the stone industry are facilitated; by adding a plurality of kinds of inorganic bonds and assistants, high-temperature sintering during the preparation is not required, the product performance is stable, the strength is relatively high, the preparation process is simple and easy, and the energy-saving and environment-friendly building ornament material is suitable for being widely generalized.

The invention discloses a method for preparing a natural antirust paint, which comprises the following steps: firstly, an upper cleaning layer of raw paint is refined to ripe paint; raw tung oil is refined to ripe tung oil; in refining, litharge is added; and secondly, the ripe paint, the ripe tung oil, a firming agent and a thinning agent are mixed to prepare the natural antirust paint. The method uses a natural product as a raw material, has wide source and low cost; moreover, a paint vehicle prepared by the method has strong adhesive force on the surface of metal and achieves the aim of protecting an ironware, thereby prolonging the service life of the ironware, which can reach over 20 years.

The invention relates to a composition of whitening and anti-wrinkle cream for treating chloasma and freckles, a preparation method thereof and a matching use of the composition during the treating process. Raw material medicines including litharge, rhizoma typhonii, Chinese angelica, hyacinth bletilla tuber, white poria cocos, angelica dahurica, salvia miltiorrhiza and Chinese gromwell are ground together into fine powder; the fine powder is uniformly mixed with talcum powder and zinc oxide, added with egg white and manufactured into paste, and de-scar cream is manufactured; 5 percent titania ointment, zinc oxide ointment and 5 percent quinine ointment are manufactured into sunproof cream; Chuanxiong rhizome, peach blossom and Chinese waxgourd seeds are alcohol extracted and concentrated by 10 percent superoxol, 5 to 10 percent ammoniated mercury ointment, 1 percent crude mercury alcohol and 20 percent benzenediol one-phenyl emulsion, and are synthesized with the de-scar cream and the sunproof cream into de-scar ointment by addition of honey and uniform mixing; fructus gleditsiae offieinalis, soirodela polyrhiza, salted and dried plums, whiteheart cherry branches and white pigeon dung are ground into fine powder and prepared into a freckle mask with water; and almond, mongolian snakegourd fruit and pork tripe are baked and ground into fine powder, and then the composition of the whitening and anti-wrinkle cream is manufactured.

The invention discloses a compound tincture for treating dermatophytosis, which has good curative effect and no side effect and reaches the effect of treating both the symptoms and root causes by toxin expelling, inflammation diminishing, sterilization, restoration, skin cell reactivation, and epidermis microcirculation promotion for skin refinement. The compound tincture for treating dermatophytosis comprises the following raw materials according to weight ratio: ethanol of each 100 parts comprises traditional Chinese medicine raw materials, such as 10 to 20 parts of potassium permanganate, 10 to 20 parts of salicylic acid, 10 to 20 parts of vinegar, 8 to 15 parts of broomjutre sida herb, 8 to 15 parts of loewigite, 8 to 15 parts of yellow-corktree bark, 8 to 15 parts of cuttlebone, 8 to 15 parts of cortex dictamni radicis, 8 to 15 parts of cnidium fruit, 8 to 15 parts of Chinese honeylocust fruit, 6 to 10 parts of calamus, 6 to 10 parts of balsam, 4 to 8 parts of kuh-seng, 4 to 8 parts of lilac, 4 to 8 parts of borneol, 4 to 8 parts of sulfur, 4 to 8 parts of xanthium sibiricum, 4 to 8 parts of honeycomb, 4 to 8 parts of uncaria stem with hooks, 1 to 5 parts of realgar, 1 to 5 parts of camphor, 1 to 5 parts of mercurous chloride, 1 to 5 parts of calamine, 1 to 5 parts of litharge, 1 to 5 parts of phaseolus calcaratus, 8 to 15 parts of peppermint oil and the like which are matched.

The invention provides ash oil putty for an ancient architecture material and a preparation method thereof. The ash oil putty contains ash oil, a blood material and brick dust, wherein the mass ratio of the ash oil to the blood material to the brick dust is 1 to 1-3 to 5-10, the ash oil is prepared from raw tung oil, moringa seed oil, linseed oil, catalpa oil, Chinese herbal medicine volatile oil, minium powder, manganese dioxide metal drier, litharge, graphene and other raw materials. The blood material is prepared from pig plasma, quick lime water, activated carbon powder, light calcium powder, aerogel powder and hypocrellin. The brick dust is obtained by smashing oil-immersed black brick coarse granules. The ash oil, the blood material and the brick dust are mixed in proportion. The ash oil putty has good adhesion and toughness, increased tension, good coating continuity and is easy to construct. Dried ash oil putty does not crack, is easy to polish, also has excellent waterproof, anticorrosive, antibacterial and ultraviolet-proof properties, is especially suitable for repair and filling of the ancient architecture material, is especially used for ancient architecture wood materials and plays an excellent wood material filling effect.

The invention discloses a method for comprehensively recycling phosphorus and rare earth from rare earth phosphorite containing monazite. The method includes the following steps that rare earth phosphorite containing monazite is obtained from phosphoric acid in a leaching manner, and a monocalcium phosphate solution containing rare earth and slag containing monazite are obtained through filtration; the monocalcium phosphate solution containing rare earth is processed through a precipitation method, dissolved rare earth precipitates, a monocalcium phosphate solution and rare earth slag containing phosphoric acid are obtained through filtration, and the rare earth slag containing phosphoric acid and slag containing monazite are mixed to form mixed slag; and phosphorus in the monocalcium phosphate solution is recycled, and rare earth in the mixed slag is recycled. Acid leaching is conducted by adding phosphoric acid, phosphorus in rare earth phosphorite containing monazite forms monocalcium phosphate high in solubility, and therefore monazite existing in a precipitation manner and phosphorus can be separated. Then, the monocalcium phosphate solution containing rare earth is processed through the precipitation method, and rare earth and phosphorus elements in phosphorite can be effectively separated. Rare earth and phosphorus are effectively separated through two times of separation steps, and therefore the rare earth recycling rate is increased.

The present invention relates to the field of traditional Chinese medicine, in particular to a plaster for the treatment of burns, scalds and infected wounds caused by various reasons and the preparation method. The present invention includes the following components: sophora japonical, membranous milkvetch root, bletilla striata, garden burnet root, ovientvine, Chinese arborvitae twig, sappan wood, diverse wormwood herb, gardenia jasminoides ellis, Chinese honeylocust spine, castor bean, frankincense, litharge, borneol, camphor and patchouli oil; the specific preparation steps are that: (1) soaking-the sophora japonical, membranous milkvetch root, bletilla striata, garden burnet root, ovientvine, Chinese arborvitae twig, sappan wood, diverse wormwood herb, gardenia jasminoides ellis, Chinese honeylocust spine, castor bean, frankincense and patchouli oil are weighed according to the mix ratio by weight and are placed into a jar for soaking for 7 days; (2) frying - the soaked medicines are placed into an iron pot for frying for 60 to 80 minutes; (3) oil refining - the medicine residues are removed, the oil refining is started, litharge is added after 60 to 90 minutes of the pot boiling, then the pot is removed from the fire till the litharge melts down; (4) cooling - when the medicines which are removed from the fire are cooled down to 60 to 80 DEG C, then the borneol and camphor which are ground into the fine powder are placed into the pot for even agitating; (5) soaking - the medicines which are removed from the pot are placed into the water for soaking for 24 hours for use.

The present invention relates to a medicine for treatment of skin ulcer. The medicine comprises, by weight, 5-15 parts of selaginella tamariscina, 3-8 parts of borneol, 10-20 of rheum officinale; 5-15 parts of litharge; 5-15 parts of catechu; 10-20 parts of crude fossil fragments; 10-20 parts of Chinese angelica; 3-8 parts of cinnabar; 5-15 parts of frankincense; 3-8 parts of dragon's blood; 4-12 parts of lithospermum; 6-14 parts of Chinese magnoliavine; and 10-16 parts of calamine. Traditional Chinese medicines of the invention are formulated by clinical combination for several times, The medicine has effects of invigorating blood circulation and dispelling slough, relieving pain and promoting regeneration, engendering flesh, astringing sore and solidifying skin, nourishing blood, moistening skin and dispelling turgescence. The medicine is based on systemic treatment, treats both principal and secondary aspect of disease after being used. Proved by hundreds of clinical experiments, the medicine has obvious effects for severe and lingering ulcer, complex wound (such as cutting, stamping contusion, open fracture, and the like), bedsore, lower limb ulcer, and the like. The effective rate achieves 92%. The medicine has high cure rate.

The invention discloses a method for separating valuable components of monazite slags, and particularly relates to a method for separating valuable components of monazite slags into a liquid phase (a solution containing uranium, thorium and rare earth) and a solid phase (a filter residue containing useful minerals such as monazite, zirconite and rutile). The method is characterized by comprising the following steps of acid leaching, filter pressing and water scrubbing. According to the invention, monazite slags are subjected to low-acid and low-temperature leaching, and a liquid phase and a solid phase are separated easily; after secondary slags are subjected to mineral processing and alkaline decomposition by using a mineral processing process, the closed cycle collection of uranium, thorium and rare earths can be realized; meanwhile, an extract residue waste acid can be subjected to cyclic utilization, thereby reducing the wastewater discharge, reducing the consumption of sulfuric acids and new water and the wastewater treatment cost, and reducing the production cost; and the recovery rates of valuable elements such as uranium, thorium and rare earths can be greater than 97%, therefore, an effect of no radioactive wastewater and waste residue discharge in the whole process can be achieved.

The invention discloses a separation method for rare earth elements in monazite. The method comprises the following steps that monazite and a rare earth ore are mixed and ground into ore powder at first, the particle size of the ore powder is -80 microns, batch open-circuit grinding is adopted at first, then simulation-closed-circuit grinding is adopted, and a method adopted for grinding comprisesthe substeps that after selected crude ore is ground for a certain time, products with the particle sizes being equal to or greater than -70 microns are screened out, oversize products are reground,water is added during regrinding according to the oversize product weight and the ore grinding concentration during crude ore grinding, and ore powder is washed after the content of ore powder with the particle size being -50 microns reaches 80% or above; and monazite slag (in kg) is added into a sulfuric acid solution (in L) with the concentration being 0.25-0.5 mol / L according to the proportionof the monazite slag to acid being 1:1-15, a mixture is heated to 40-100 DEG C, stirring is conducted for 5-8 h, cooling, still standing and clarification are conducted for 4-8 h, and a solution containing valuable elements of uranium, thorium and rare earth is obtained through siphoning of a supernatant.

The invention discloses a process for producing calcium carbonate by utilizing waste carbide slag. The process comprises the following steps: (1) carbide slag pretreatment; (2) alkali and impurity removal by using ammonium chloride; (3) carbonization. The calcium carbonate is produced with a method of drying waste carbide at high temperature and removing alkali, so that the problem of environmental pollution in the current treatment method is solved.

The invention discloses a sand-making dry method by using granite leftover rock powders and rock ballasts. The method comprises the following steps: 1) selecting the granite leftover rock ballasts and crushing; 2) removing the powders with a particle size below 0.075mm from the crushed sand-powder mixture and granite leftover rock powders by an air classification blower so as to leave the sand grains with a particle size above 0.075mm, and screening the sands with uniform particle size; 3) repeating the step 1) and the step 2) on the remaining large clastic rocks processed in the step 2) to obtain the sands with uniform particle size; 4) adding the rock powders with small particle size, screened in the step 2) by a screen, into a coagulator to obtain lumps; 5) carrying out the step 1) and the step 2) on the lumps to obtain the sands with uniform particle size; 6) repeating the step 1) and the step 2) on the remaining lumps to obtain the sands with uniform particle size; and 7) repeating the step 4) and the step 5) on the micro powders with smaller particle size processed in the step 5) to obtain the sands with uniform particle size. The method provided by the invention can turn waste into wealth and protect the environment.

The present invention belongs to the field of plastic stabilizers, and specifically relates to a plastic pipe fitting-used composite stabilizer and a preparation method thereof. Provided is the plastic pipe fitting-used composite stabilizer, which is composed of the following raw materials by weight: 345-355parts of stearic acid, 122-130 parts of litharge, 40-45 parts of calcium stearate, 15-22 parts of acetic acid, 20-25 parts of polyethylene wax, 368-371 parts of tribasic lead sulfate, 88-95 parts of light calcium carbonate, 75-82 parts of barium stearate, 18-30 parts of dibasic lead stearate, 10-15 parts of bisphenol A, 20-26 parts of paraffin, and 48-55 parts of dibasic lead phosphite. The composite stabilizer of the present invention is suitable for plastic pipe fittings, and is good in stability and lubricating effect, low in cost, and low in lead content.

The present invention relates to a baking-free and steaming-free brick. It is formed from main material and auxiliary material as gelatinizing agent, the main material is stone ballast and slag, its content is 80-85 weight portions, and the gelatinizing agent is huangbanzi stone powder and quicklime, in which the huanbanzi stone powder content is 7-10 portions and the quicklime content is 6-13 portions, gran size of ballast or slag is less than or equal to 8mm, and the grain size of huangbanzi stone powder is greater than or equal to 85 meshes. Said invention adopts the processes of pressure forming and natural curing to form hydrated calcium silicate and reducing it to obtain tobermorite crystal. Said invention can use the huangbanzi stone powder and quicklime instead of cement to obtain the product similar to cement concrete brick.

The invention discloses a method for treating waste carbide slag and waste hydrochloric acid. The method comprises the following steps: pouring waste carbide slag and water into an active carbon pretreatment device with a stirring device at a weight ratio to stir the waste carbide slag and the water into uniform emulsion; naturally settling the emulsion; feeding the settled product to a filter press to press and filter the settled product to obtain calcium hydroxide and storing the supernatant of the waste carbide slag slurry for further use at the same time; treating the waste hydrochloric acid by the adsorption of active carbon to obtain very pure hydrochloric acid; reacting the calcium hydroxide with the hydrochloric acid in a reactor according to pure mass; controlling the reaction temperature; absorbing the generated waste gas with the supernatant of the waste carbide slag slurry; adding the supernatant of the waste carbide slag slurry into the reaction liquid and stirring till the pH value is adjusted to 12; sucking and filtering the reaction liquid to obtain calcium chloride filter liquor and a filter cake; and finally, concentrating, distilling, centrifugally separating and drying the calcium chloride filter liquor to obtain calcium chloride. The method is low in cost, solves the problem of exhaust emission, is favorable for thorough reaction, ensures the quality of product and implements the effective comprehensive utilization of waste carbide slag and waste hydrochloric acid.

The present invention relates to a hose comprising: a thermoplastic fluoropolymer barrier layer; and a rubber layer adjacent to the barrier layer, the rubber layer comprising 100 parts by weight of an elastomer comprising FKM fluoroelastomer; from about 1 to about 15 parts by weight, per 100 parts by weight of elastomer, of at least one acid acceptor selected from the group consisting of magnesium oxide, calcium hydroxide, litharge, dibasic lead phosphite, calcium oxide, and zinc oxide; from about 1 to about 6 parts by weight, per 100 parts by weight of elastomer, of at least one diamine curative; and from about 1 to about 10 parts by weight, per 100 parts by weight of elastomer, of at least one of a hydrotalcite or tricalcium aluminate hexahydrate; wherein the weight ratio of the at least one acid acceptor to the at least one hydrotalcite ranges from about 1 to about 5.

The invention relates to a heat dissipation material for lamps, and in particular relates to a reinforced active aluminum-based composite heat dissipation material for an LED (light emitting diode) and a production method of the material. The heat dissipation material is prepared from the following raw materials in parts by weight: 83-85 parts of aluminum, 15-18 parts of aluminum nitride, 4-5 parts of magnesium nitride, 8-10 parts of zirconia, 4-6 parts of magnesium oxide, 1-3 parts of straw powder, 1-2 parts of tourmaline powder, 0.1-0.2 part of monazite slag, 0.5-1 part of natrolite and 4-5 parts of aids. The heat dissipation material disclosed by the invention integrates the advantages of aluminum, aluminum nitride, zirconia and the like, has good heat conduction and heat dissipation capabilities; the tourmaline powder is an active matter and can endow the material with good detergency, electromagnetic radiation reducing capability and moisture resistance, the monazite slag contains multiple rare earth elements and can effectively improve the heat dissipation performance of the material and can improve the sintering effect and the compactness of the material together with the aids. The material has good mechanical properties, is simple in use and maintenance and durable and can be used for effectively protecting an LED lamp and greatly prolonging the service life of the lamp.

The invention particularly relates to a traditional Chinese medicine liniment for treating epichrosis leucasmus and armpit odor. The effective ingredient of the liniment come from the traditional Chinese medicines in following weight parts: 1-6 parts of arsenic sulphide, 1-6 parts of sulfur, 1-6 parts of litharge, 1-3 parts of hydrargyri subchloridum, 1-9 parts of fructus cnidii, 1-6 parts of honeycomb, 1-15 parts of fructus psoraleae, 1-9 parts of radix aconiti carmichaeli, 1-9 parts of aconitum chinese paxton, 1-9 parts of hurricane lamp and 1-9 parts of trumpet creeper. A preparation methodof the liniment is simple and only comprises following steps: grinding the medicines in a recipe into fine powder, and then adding alcohol or vinegar the weight of which is 8-15 times of the medicinepowder to soak the medicine powder for 2-7 days. The medicines in the recipe are combined, enabling the prepared liniment to have the efficiencies of dispelling wind and arresting itching, detoxicating and destroy intestinal worms, eliminating dampness and astricting tumefaction, resuscitating and removing dirt, activating blood flow and removing blood stasis, disintegrating mass and eliminatingpus and the like. Through clinical verification, the liniment is used for treating epichrosis leucasmus, and the effectual rate reaches as high as 100%. The liniment can effectively restrain armpit odor and can thoroughly treat armpit odor after being used for a long time.

The invention relates to a method utilizing witherite to prepare barium hydroxide octahydrate and belongs to the technical field of fine chemical engineering. The method utilizes witherite to serve as a raw material, witherite slag is sieved after grinding, the grain size is controlled at 120 mesh>50-80%, 8-15% of graphite powder, 1-2% of sodium humate and 2-3% of paraffin are added into the witherite, and pelletizing is performed through a pelletizer. After the grains are dry and hard, the grains are placed in a corundum boat and roasted for 2-3h at 1,000-1,200 DEG C, and the roasted grains are cooled to 500-700 DEG C, placed in hot water at 85-95 DEG C and soaked for 1-2h according to the solid-to-liquid ratio 1:(6-10). After desulfurization, material liquid is concentrated and crystallized so that a barium hydroxide product is obtained, and filtrate returns to a leaching tank to be recycled. Compared with other methods, the method enables thermal decomposition efficiency of witherite to be high, enables water leaching rate to be high, enables the product to be subjected to little influence of impurities in an additive, enables discharged solid residue to be little, and has a certain advantages.

The invention discloses a treatment method of tailings after the separation and recovery of monazite slag, namely a treatment method of tailings after separating and recovering valuable elements uranium, thorium and rare earth from monazite slag. The method is characterized by comprising the following steps of: acid leaching, filter pressing, washing and treatment of filter residue. According to the invention, the tailings are leached out by weak acid at a low temperature, and the liquid phase and solid phase are easy to separate; the secondary slag is subjected to beneficiation and alkaline decomposition by a beneficiation technology, and closed-loop circular recovery of uranium, thorium and rare earth is realized; and meanwhile, the waste acid of residual liquid is circularly used, the discharge of wastewater is reduced, the consumption of sulfuric acid and new water as well as the wastewater treatment cost are reduced, the production cost is lowered, the recovery rate of the valuable elements uranium, thorium and rare earth is greater than 97%, and the discharge of radioactive wastewater and waste residue is avoided in the whole technology.

The invention discloses a separation and recovery method of uranium, thorium and rare earth in monazite slag, namely a method for separating and recovering valuable elements uranium, thorium and rare earth from monazite slag. The method is characterized by comprising the following steps of: acid leaching, filter pressing, washing and extraction of valuable components. According to the invention, the uranium, thorium and rare earth are leached out by weak acid at a low temperature, and the liquid phase and solid phase are easy to separate; the secondary slag is subjected to beneficiation and alkaline decomposition by a beneficiation technology, and closed-loop circular recovery of uranium, thorium and rare earth is realized; and meanwhile, the waste acid of residual liquid is circularly used, the discharge of wastewater is reduced, the consumption of sulfuric acid and new water as well as the wastewater treatment cost are reduced, the production cost is lowered, the recovery rate of the valuable elements uranium, thorium and rare earth is greater than 97%, and the discharge of radioactive wastewater and waste residue is avoided in the whole technology.