31results about "Packaging corrosive chemicals" patented technology

This invention provides a method for storing fluoro-2-butene that minimizes the progression of isomerization reactions during storage. [Solution] General formula C4H x F y Fluoro-2-butene, represented by the general formula where x is between 0 and 7, y is between 1 and 8, and x+y is 8, may or may not contain at least one of chromium, molybdenum, iron, zinc, and aluminum as a metal impurity. This fluoro-2-butene is stored in a container with the sum of the concentrations of chromium, molybdenum, iron, zinc, and aluminum (in the case where it contains these impurities) being 1000 ppb by mass or less.

The invention belongs to the technical field of concentrated acid tank replenishing, and relates to a ceramic filter concentrated acid tank with a protection function, which comprises a concentrated acid tank body, a connecting part and a liquid level meter, the connecting part comprises an upper thread part, a middle transition part and a lower flange part; the upper thread part is provided with an internal thread; the middle transition part extends towards the concentrated acid tank body; the interior of the middle transition part is of a hollow structure; the lower flange part is mounted on the reserved mounting flange; the top end of the liquid level meter is connected with an internal thread of the upper thread part, and the bottom end of the liquid level meter penetrates through the middle transition part and the lower flange part and then extends into the concentrated acid tank body; the liquid level meter is a corrosion-resistant capacitive liquid level meter; according to the device, accurate monitoring and linkage alarming of the upper limit and the lower limit of the liquid level are achieved, and the production safety and the intrinsic safety level are effectively improved.

The present invention relates to a protective padding for a storage box, in particular made of metal, such as aluminium, for hazardous materials, such as energy storage devices or energy converters, in particular a battery, an accumulator or a fuel cell, which has a body with four circumferential walls as well as a bottom wall and a lid wall, comprising a cuboid network of six interconnected padding sections, each facing a wall of the storage box, in each of which an electrically insulating and / or thermally insulating and / or moisture-absorbing and / or acid-resistant and / or intumescent insulating material is housed.

The present invention relates to a protective pad for a storage box, in particular made of metal, such as aluminium, for hazardous materials, such as energy stores or energy converters, in particular a battery, an accumulator or a fuel cell, which has a body with four surrounding walls and a bottom wall and a top wall, comprising a cuboid grid of six contiguous pad sections, each facing a wall of the storage box, in each of which an electrically insulating and / or thermally insulating and / or moisture-absorbing and / or acid-resistant and / or intumescent insulating material is accommodated.

The utility model discloses a hazardous chemical substance transportation tank protection device which comprises two connecting shells, one side of the inner wall of each connecting shell is fixedly connected with a protection plate, a protection assembly is arranged outside each connecting shell, and an adjusting assembly is arranged on the outer wall of each connecting shell. The adjusting assembly comprises multiple sliding blocks, one sides of the multiple sliding blocks are fixedly connected to the outer wall of the connecting shell on one side, a groove is formed in each sliding block, the multiple sliding blocks are slidably connected to the interior of the connecting shell on the other side, bolts are arranged in the connecting shells, one ends of the bolts penetrate and extend to the exteriors of the sliding blocks and the rubber sleeves, and the other ends of the bolts penetrate through the rubber sleeves. And one end of each bolt is in threaded connection with a nut. The sliding block on the outer wall of the connecting shell on one side slides in the connecting shell on the other side to be matched with the outer wall of the tank body in length, then the connecting shells are fixed through bolts and nuts, the effect of adjusting the length of the equipment is achieved, and the problems that traditional equipment is relatively fixed in length and inconvenient to use are solved. And partial areas of the outer wall of the tank body are not protected in place.

The present invention has an object of providing a storage container and a storage method that maintain the quality of Z-1-chloro-3,3,3-trifluoropropene as a solvent or a detergent, and are usable to store and transport Z-1-chloro-3,3,3-trifluoropropene safely and stably at low cost. A storage container for HCFO-1233zd (Z), to be filled with HCFO-1233zd (Z), according to the present invention is characterized in that a material of at least a liquid-contact portion thereof is selected from the group consisting of epoxy-phenolic resin, phenolic resin, phenolic-butyral resin, stainless steel, iron phosphate, zinc phosphate and glass.

The utility model relates to the technical field of dilute acid tanks, in particular to a vacuum dilute acid tank for stevia rebaudiana production, which comprises a storage component capable of storing dilute acid solution in vacuum, a displacement component convenient for the dilute acid tank to move is arranged at the bottom of the storage component, and a uniform mixing component for stirring and uniformly mixing the dilute acid solution is arranged on one side of the storage component; wherein the uniform mixing assembly comprises a main shaft, and the side part of the main shaft is fixedly inserted into the centers of the two groups of mounting frames. According to the utility model, by using the uniform mixing component, the raw materials are stirred and mixed before being discharged, so that the stirring of dilute acid liquid is enhanced, the discharged dilute acid liquid is effectively prevented from precipitating, and the normal effect of the dilute acid liquid is further ensured. By using the storage assembly, negative pressure is formed in the tank body, under the action of the one-way valve, external air cannot enter the tank body through the one-way valve, reaction between the air and the acid liquid is effectively reduced, and then the purity of the acid liquid is guaranteed.

The utility model discloses corrosion-resistant conveying equipment for production of nicotinamide ribose in a low-pH environment, and relates to the technical field of biochemical production equipment.The corrosion-resistant conveying equipment comprises an equipment body, a limiting disc and a water storage tank, the exterior of the equipment body is fixedly connected with an input pipe, and a conveying mechanism is installed in the equipment body; the two limiting discs are vertically and fixedly installed on the inner side of the equipment body, the water storage mechanism is installed between the two limiting discs, the spraying mechanism is installed at the bottom of the water storage mechanism, and the rotating mechanism is installed on the upper side of the equipment body; the water storage tank is fixedly connected to the outside of the equipment body, and a water supply mechanism is installed in the water storage tank. A corrosion-resistant structure and a dynamic cleaning function are combined, all-directional automatic cleaning of the inner wall is achieved through the rotary spraying device, a high-pressure water curtain is adopted to emphatically scour easily-corroded parts, residues are rapidly removed after an acid medium is conveyed, the service life of equipment is effectively prolonged, meanwhile, sealed conveying is kept, leakage is avoided, and the service life of the equipment is prolonged. And the production safety and continuity are obviously improved.

The object of the invention is to provide a glass container, a method for sealing a glass container, and an arrangement for storing a plurality of glass containers, which are simple to manufacture, use, handle, and store, and which also exhibit high strength and stability. Furthermore, the containers should be easily accessible for inspection or subsequent reuse of their contents. Glass vessel (1) comprising a vessel body (1) with a vessel opening (4) at the top, wherein a closure surface (18) surrounding the vessel opening (4) is provided and wherein the vessel opening (4) can be closed with a closure (5), wherein the closure (5) covers or overlaps the closure surface (18) or extends onto the closure surface (18), wherein a bonding layer (6) is provided between the closure surface (18) and the closure (5), wherein the bonding layer (6) can be crosslinked thermally, by means of visible and / or invisible light or chemically with the closure (5) and the closure surface (18), and wherein the bonding layer (6) is thermally separable or soluble.

The present invention provides a member which makes is possible to obtain excellent residue defect inhibition properties and excellent bridge defect inhibition properties of a chemical liquid in a case where the member is brought into contact with the chemical liquid. The present invention also provides a container, a chemical liquid storage body, a reactor, a distillation column, a filter unit, a storage tank, a pipe line, and a chemical liquid manufacturing method. The member according to an embodiment of the present invention is a member that will be brought into contact with a chemical liquid. A surface of the member is constituted with stainless steel containing chromium atoms and iron atoms. In a case where an atomic ratio of the chromium atoms to the iron atoms is measured from the surface of the member to a position 10 nm below the surface in a depth direction, a maximum value of the atomic ratio is found in a region extending 3 nm from the surface of the member in the depth direction. The maximum value is 0.5 to 3.0, and an average surface roughness of the surface of the member is equal to or lower than 10 nm.

The utility model relates to the technical field of stainless steel electrolyte barrels, and discloses a high-strength stainless steel electrolyte barrel which comprises a novel electrolyte barrel body, a protective sleeve is arranged on the outer side of the novel electrolyte barrel body, a fixing block is fixedly connected to the right side of the interior of the protective sleeve, and a fixing groove is formed in the left side of the fixing block. The right side of the novel electrolyte barrel body is fixedly connected with connecting blocks, the connecting blocks are located in the fixing grooves and matched with the fixing grooves, and the four fixing blocks, the four fixing grooves and the four connecting blocks are arranged in a square array with the top end of the novel electrolyte barrel body as the center. By arranging the first wear-resistant surface layer, the first wear-resistant middle layer, the first wear-resistant coating, the second wear-resistant surface layer, the second wear-resistant middle layer and the second wear-resistant coating, friction between the inner side of the protective sleeve and the novel electrolyte barrel body can be reduced, and the service life of the protective sleeve and the novel electrolyte barrel body is prolonged; the heat-insulating surface layer, the heat-insulating middle layer and the heat-insulating coating are arranged, so that heat insulation can be realized.

Provided is a method for storing fluoro-2-butene in which an isomerization reaction does not readily occur during storage. A fluoro-2-butene represented by the general formula C4HxFy, in which x is 0 to 7, y is 1 to 8, and x + y is 8, contains or does not contain hydrogen chloride as an impurity. The fluoro-2-butene is stored in a container with the hydrogen chloride concentration in the gas phase portion when contained being 100 ppm by volume or less.

Provided is a container in which there are few polyethylene-derived fine particles or polymerization catalyst component-derived metal impurities, and which has a low container inner surface roughness.　The container is formed from a polyethylene resin and satisfies characteristics (1)-(4). (1) When the container is filled with ultrapure water, the number of fine particles of at least 20 nm which dissolve from the container after stationary storage at 40°C for 35 days is at most 40 particles per mL; (2) when the container is filled with ultrapure water, the dissolved quantity of metal which dissolves from the container after being held stationary at 23°C for 7 days is at most 30 ppt; (3) the maximum roughness Rz of the container inner surface is at most 15.0 μm; and (4) the arithmetic average roughness Ra of the container inner surface is at most 1.5 μm

The utility model relates to the technical field of waste acid filtering and recycling, in particular to an anti-leakage temporary storage device which comprises a bearing rack, a driving gear and a driven gear are rotationally connected to the interior of one side of the bearing rack, the driving gear is connected to the lower portion of the driven gear in an engaged mode, and the driven gear is connected to the lower portion of the bearing rack. An auxiliary transmission A gear and an auxiliary transmission B gear are rotationally connected to the interior of the other side of the bearing rack, and the auxiliary transmission A gear is connected to the lower portion of the auxiliary transmission B gear in a meshed mode. According to the improved storage device, the sealing piece in the tank is matched with the feeding pipe, so that a medium entering the tank body is shunted and converged through the groove, generation of foam is reduced, meanwhile, good sealing performance is provided, the possibility of medium volatilization and the possibility of air entering the tank body through the feeding pipe are effectively reduced, and the service life of the storage device is prolonged. And the tank body can be used for extracting the medium finally, so that the internal medium can be fully mixed through the overturning structure, and the labor intensity is also reduced when subsequent personnel clean the tank body.

Provided is a storage method for fluoro-2-butene in which isomerization is unlikely to progress during storage. Fluoro-2-butene represented by the general formula C4HxFy and in which x within the general formula is 0-7 inclusive, y is 1-8 inclusive, and x+y is 8 either includes hydrogen chloride as an impurity or does not include hydrogen chloride. This fluoro-2-butene is stored within a container such that the concentration of hydrogen chloride in a gas phase when the fluoro-2-butene includes hydrogen chloride is 100 volume ppm or less.

A breakseal is for a chemical container cap. A chemical container cap includes a cap body and a breakseal. The breakseal is disposed in an opening of a hole in the cap body. The breakseal includes a base portion extending over the hole, an outer periphery portion extending outwards from the base portion, and a first ring protruding from the body portion. The base portion is configured to rupture under an external force. The outer periphery portion curves away from a plane of the base portion as the outer periphery portion extends outwards. The ring portion is configured to form a radial seal with a port of a chemical container. An assembly includes a chemical container with a port and a chemical container cap coupled to the chemical container over the port.

The present invention provides coated containers and methods for forming such containers. [Solution] A container comprising an enclosure having an outer surface and an inner surface, and an optionally derivatizable polydopamine coating disposed on the inner surface of the enclosure is disclosed herein. A method for coating a solution is also disclosed herein, comprising the steps of (a) providing a container comprising an enclosure having an outer surface and an inner surface, and (b) placing a solution comprising dopamine hydrochloride, a buffer, and a solvent inside the container.

To provide a container for high purity chemicals made of a polyethylene resin, from which eluates derived from the polyethylene resin and elution of contaminants such as degraded substances into a chemical stored in the container are suppressed as far as possible. A container for high purity chemicals, which is made of a polyethylene resin, and the inner surface of which has a developed interfacial area ratio of 1.10 or less.

The utility model discloses an anti-corrosion composite plastic container which comprises a plastic container body, the plastic container body comprises a container body and a cover body, a feeding port is formed in the upper portion of the cover body, an anti-overflow detection mechanism is installed on one side of the feeding port, and the plastic container body comprises a polytetrafluoroethylene layer. The outer side of the polytetrafluoroethylene layer is fixedly provided with a glass fiber layer, the glass fiber layer is fixedly connected with the inner side of the reinforcing layer, the outer side of the reinforcing layer is fixedly connected with a macromolecule flame-retardant layer, the outer side of the macromolecule flame-retardant layer is fixedly connected with a polycarbonate outer layer, and the outer side of the polycarbonate outer layer is provided with an anti-corrosion layer. According to the anti-corrosion composite plastic container, in order to solve the problem that an existing plastic container is insufficient in anti-corrosion performance, the plastic container comprises a container body and a cover body, a feeding port is formed in the upper portion of the cover body, an anti-overflow detection mechanism is installed on one side of the feeding port, and the plastic container comprises a polytetrafluoroethylene layer; and a glass fiber layer is fixedly arranged on the outer side of the polytetrafluoroethylene layer.

An article containing an organic tin compound in an industrially usable container is provided, in which the container is sealable, and the part of the container in contact with the organic tin compound is made of stainless steel with a specific surface structure that has been electrolytically polished. This article makes it possible to store organic tin compounds with high reactivity while maintaining their purity for a long period of time.

The utility model discloses a corrosion-resistant concentrated sulfuric acid storage tank, relates to the technical field of storage, and adopts the technical scheme that the corrosion-resistant concentrated sulfuric acid storage tank comprises a storage tank, a motor and a fan, the storage tank is of a cylindrical hollow structure, the motor is mounted on one side of the storage tank, and a shell of the motor is fixedly connected with the outer wall of the storage tank; and the output end of the motor penetrates through the storage tank and is arranged in the storage tank, the output end of the motor is fixedly connected with a rotating disc, the rotating disc is rotationally connected to the inner wall of the storage tank, and a sliding rod is installed on the plane of the side, away from the motor, of the rotating disc. According to the utility model, the motor turntable is used for rotating, the turntable is provided with the sliding rod, the turntable drives the sliding rod to rotate, the sliding rod slides in the sliding chute on the swinging arm, one end of the swinging arm is fixed, the sliding rod drives the swinging arm to swing, and the other end of the swinging arm is fixedly connected with the swinging rod; and the swinging rod drives the scraping plate to swing in the storage tank, and precipitated crystals are prevented from appearing in the storage tank.

The utility model discloses a chemical packaging bottle which comprises a quartz glass source bottle, an air outlet pipe and an air inlet pipe are fixed on the outer wall of the top of the quartz glass source bottle, the air outlet pipe and the air inlet pipe penetrate through the outer wall of the top of the quartz glass source bottle, and an insertion pipe is fixed at the bottom end of the air inlet pipe. According to the device disclosed by the utility model, nitrogen can be in full contact with phosphorus oxychloride stored in the quartz glass source bottle, and the volatile gas of the phosphorus oxychloride can enter the gas outlet pipe under the carrying of the nitrogen through the volatility of the phosphorus oxychloride and then enter a corresponding processing technology conveying pipeline through the gas outlet valve on the outer wall of the gas outlet pipe; phosphorus oxychloride stored in the quartz glass source bottle can be effectively and uniformly released outwards through stirring of nitrogen filled into the quartz glass source bottle, it is guaranteed that phosphorus oxychloride gas exhausted through the gas outlet valve can uniformly and stably enter a semiconductor and a photovoltaic diffusion furnace tube, and the uniformity and stability of phosphorus source doping are improved. Therefore, the utilization rate of phosphorus oxychloride stored in the quartz source bottle is improved.

To provide a sulfur dioxide mixture which hardly corrodes metals.SOLUTION: The sulfur dioxide mixture contains sulfur dioxide and water. Then, the sulfur dioxide mixture is filled in the filling container so that a gas phase and a liquid phase exist, and a moisture concentration of the gas phase is 0.005 mol ppm or more and less than 5000 mol ppm.SELECTED DRAWING: None

The utility model belongs to the technical field of grain and oil processing refining degumming process equipment. The phosphoric acid tank comprises a containing cavity; the filtering assembly is obliquely arranged at the upper part of the accommodating cavity; the cover plate assembly is arranged at the top of the containing cavity, the cover plate assembly comprises a fixed cover plate and a movable cover plate arranged on the fixed cover plate, the movable cover plate is matched with the lower end of the filtering assembly and used for buffering the phosphoric acid liquid, and meanwhile the fixed cover plate is used for shielding the phosphoric acid liquid and preventing the phosphoric acid liquid from splashing out of the containing cavity. The phosphoric acid tank is used for solving the technical problems that the existing barreled phosphoric acid is directly poured into the tank, liquid is easy to splash, and the body is damaged when the liquid is in contact with the skin.

A breakseal is for a chemical container cap. A chemical container cap includes a cap body and a breakseal. The breakseal is disposed in an opening of a hole in the cap body. The breakseal includes a base portion extending over the hole, an outer periphery portion extending outwards from the base portion, and a first ring protruding from the body portion. The base portion is configured to rupture under an external force. The outer periphery portion curves away from a plane of the base portion as the outer periphery portion extends outwards. The ring portion is configured to form a radial seal with a port of a chemical container. An assembly includes a chemical container with a port and a chemical container cap coupled to the chemical container over the port.

Provided is a gas-filled container which is filled with (E)-1,1,1,4,4,4-hexafluoro-2-butene and in which the purity thereof is unlikely to decrease for a long period of time. The gas-filled container is obtained by filling a container with (E)-1,1,1,4,4,4-hexafluoro-2-butene. The part of the container that is in contact with the (E)-1,1,1,4,4,4-hexafluoro-2-butene, with which the container is filled, is made of metal having a copper concentration of less than 0.5 mass%.

The present invention relates to a protective padding for a storage box, in particular made of metal, such as aluminium, for hazardous materials, such as energy storage devices or energy converters, in particular a battery, an accumulator or a fuel cell, which has a body with four circumferential walls as well as a bottom wall and a lid wall, comprising a cuboid network of six interconnected padding sections, each facing a wall of the storage box, in each of which an electrically insulating and / or thermally insulating and / or moisture-absorbing and / or acid-resistant and / or intumescent insulating material is housed.

Many chemicals are sensitive to or can react with compounds in the air. For example, many chemicals can react to water vapor and oxygen as well as trace gases carbon dioxide, ammonia, and hydrogen sulfide. Chemicals are typically packaged in a container. A device, called an adapter, is presented to provide an inert environment when working with reactive chemicals. The adapter is fitted on the container and allows for the establishment of inert environment that surrounds the opening of the container.

An arrangement for the degradation stable storage and transport of a liquid comprising a non-substituted saturated aliphatic C6-12 carboxylic acid in which the liquid is surrounded by a metallic container and covered with an oxygen free or at least heavily oxygen depleted inert gas phase atmosphere above the liquid.