289results about "Solvent extraction" patented technology

The utility model discloses plant extract extraction equipment, which belongs to the technical field of plant extraction and comprises an extraction barrel, a supporting plate is fixedly mounted on the upper surface of the extraction barrel, a fixing plate is fixedly mounted on the upper surface of the supporting plate, and a pressing component and a lifting component are arranged on the upper surface of the fixing plate; according to the device, the pressing assembly is arranged, the other toothed chain wheel drives the reciprocating lead screw to rotate under the action of the toothed chain, at the moment, the lower sliding sleeve can drive the pressing plate to move up and down in the filter barrel under the limitation of the air cylinder under the action of the thread, plants in the filter barrel can be extruded when the pressing plate moves downwards, and when the pressing plate moves upwards, the plants can be extruded by the reciprocating lead screw. When the plant is not extruded, the solvent can be absorbed, so that the plant is filled with the solvent, the plant is pressed while rotating in the plant soaking process, the full contact between the plant and the solvent is further ensured, the extraction quality of plant extraction is improved, the solvent waste can be avoided by pressing during discharging, and the purpose of saving resources is achieved.

The invention relates to a process for purifying maritime pine bark by selective sieving and grinding, as well as the extracts obtained from this purified bark. The purified bark of the invention is obtained by a three-step process consisting of pre-sieving the raw bark, followed by selective grinding of the pre-sieved bark with a non-shearing grinder, followed by sieving of the selectively ground raw bark. The maritime pine bark extracts obtained from this purified bark can be obtained by extraction with water or with a mixture of water and ethanol. Extracts obtained by water extraction have a procyanidin content of between 65% and 75%, while extracts obtained with a mixture of water and ethanol have a procyanidin content greater than or equal to 70%.Extracts of maritime pine bark obtained from the purified bark of the invention can be used as ingredients for the formulation of food supplements, functional foods or cosmetic products.

Methods for processing metal components from the nuclear industry are described. In some embodiments, a method includes processing a component having a surface contaminated with radionuclides by dissolving at least a portion of the surface with an acid solution to produce a waste solution including the radionuclides, and separating the radionuclides from the waste solution. In some embodiments, a method includes processing a component including a target radionuclide by immersing at least a portion of the component in an electrolyte bath, applying an electric current to cause electrodissolution, and electroplating the target radionuclide from the solution onto a cathode. In some embodiments, a method includes processing a metal composite component by dissolving it to produce a solution including dissolved metal and particulate material, and separating the particulate material.

The present disclosure relates to a method for preparing a solid form of the lithium salt of bis(fluorosulfonyl)imide (LiFSI), wherein the solid form of LiFSI salt is extracted from a solution comprising at least one solvent by supercritical anti-solvent extraction. The present invention also relates to the solid form of LiFSI obtained therefrom, as well as the use of such LiFSI in a battery electrolyte.

A method of separating and purifying a mixed stream of contaminated reclaimed polyethylene and contaminated reclaimed polypropylene is provided. The method comprises the steps of extraction, dissolution, settling, purification, and solvent separation to produce separate streams of purified recycled polyethylene and purified recycled polypropylene. Both separate streams are produced in the same production plant operating in swing mode, and have virgin-like optical properties.

The present invention relates to the technical field of solid waste testing. Disclosed is an apparatus for preparing a solid waste leaching solution. The apparatus for preparing a solid waste leaching solution comprises a base, a pretreatment mechanism, sample bottles, a cabinet, an overturn oscillation mechanism and a suction filtration device, wherein the pretreatment mechanism is arranged above the base and is used for weighing, crushing and sieving solid waste; the cabinet is arranged at the top of the base; the sample bottles and the overturn oscillation mechanism are both arranged on the inner side of the cabinet; and the sample bottles are used for containing crushed solid waste mixed with a leaching agent. By means of the apparatus for preparing a solid waste leaching solution, solid waste to be crushed is weighed synchronously while being fed into a treatment cylinder, without the need for transferring the solid waste after a crushing operation, thereby simplifying operation steps. Compared with some apparatuses that use mechanical arms for transferring, the present invention effectively reduces the manufacturing and usage costs, shortens the operation time, and improves the operation efficiency.

It is provided an environmentally friendly process for recycling metals and nonmetallic components from printed circuit boards (PCBs), without using treatments considered damaging to the environment and minimizing emission of greenhouse gases comprising the steps of shredding the PCBs, micronizing the shredded PCBs producing a micronized powder, removing plastic and epoxy from the micronized powder, leaching, precipitating and recuperating the Al, Fe, Zn, Ni, Cr, Cu, Au, Ag, and Pd from the micronized powder, producing a filtrate from which the Cu is recovered. The solid product of the process is a concentrate of precious metals.

Accordingly, in one aspect of the invention there is provided a method of manufacturing an ATP enriched plant based extract comprising:gathering a collection of plant material; saturating the collection of plant material in a solvent to generate a liquid extract; filtering the liquid extract to remove solid plant matter therefrom to form a filtered liquid extract; exposing the filtered liquid extract to UV light; reducing the filtered liquid extract to form a liquid concentrate; and cleaning the liquid concentrate to create an ATP enriched oil extract

Method for producing electronic grade nickel sulfate from nickel powder, crystallization apparatus, and control thereof The present invention provides a method for producing nickel sulfate, and nickel sulfate produced thereby. The process includes acid leaching, copper removal, acid adjustment, concentration, cooling crystallization, drying and sieving, and secondary leaching. Oxidation In the calcination furnace, the temperature is 400 to 700°C, and 1 kg of compressed air is used for each kilogram of nickel powder. ~5m 3 The reaction time is 1.0 to 2.5 hours, and the temperature during acid immersion is controlled to 45 to 70°C. Then, add dilute sulfuric acid to control the pH to 0.5-1.5 and react for 1-3 hours. The copper removal is to replace the copper with nickel powder, and the acid conditioning is to use nickel hydroxide or The pH is adjusted to 2.5-4.5 using nickel carbonate, and the filtrate is concentrated by The cooling crystallization method is to obtain nickel sulfate crystals and return the mother liquor to the concentrate. Drying and sieving is to add the undersieved material to the crystallizer as seed crystals, and secondary leaching is to Dilute sulfuric acid is added to the leaching slag, and it is reacted with nickel sulfate or hydrogen peroxide until nickel is less than 0.1%. If the first stage is full, the second leaching is continued. The crystallizer is a crystallizer that is connected in series with a second-stage crystallizer and a third-stage crystallizer. A crystallization frame, an oscillator provided under the crystallization frame, and an oscillator provided at the exit end of the crystallization frame. The crystallization frame is a rectangular parallelepiped. The bottom of the ribs are evenly spaced, with a cross section of a circular arc. The distance between two adjacent ribs is S is 1 / 25 to 1 / 15 of the width of the crystallization frame, and either the width b or the height h of the rib The width of the crystallization frame is 1 / 100 to 1 / 150 of the width of the crystallization frame. It does not add any new impurity ions, and does not add any oxidizing agent. The nickel sulfate crystal particles produced are uniform and are free of the static generation. This avoids caking of very large particles, irregularly shaped particles and crystals.

The present invention relates to a method for recovering elastic polyurethane from a composition comprising elastic polyurethane foam, the method comprising the steps of providing a composition comprising polyurethane foam, heating the composition comprising polyurethane foam to a temperature in the range of 140°C to 220°C, and contacting the composition comprising polyurethane foam with a solvent mixture (SM) comprising at least one alcohol and at least one compound (A1) selected from the group consisting of cyclic amides, at a temperature below the boiling point of the alcohol, to obtain a solution (S1) rich in dissolved polyurethane. The present invention also relates to the polyurethane obtained or obtainable by said method, as well as to the use of the polyurethane according to the invention for preparing a molded article.

A method for supplying deaerated water to a chemical plant, wherein the chemical plant includes a distillation column for separating a reaction effluent including water and a product. The method includes charging aerated water (water having an oxygen content greater than 50 ppbw, such as greater than 1 ppmw) to the distillation column. The aerated water in the distillation column can then be distilled to produce an oxygen-containing overhead and a bottoms fraction including deaerated water. The deaerated water in the bottoms fraction can be transported to and utilized in upstream or downstream unit operations. The reaction effluent is fed to the distillation column, converting the distillation column from an operation that separates oxygen from water to an operation that separates the product from water.

The present invention relates to a method suitable for recovering textile waste comprising a polyester yarn containing a dye, the method comprising: a first step in which the polyester yarn is treated with a solvent to extract a portion of the dye from the polyester yarn; a second step in which the solvent-treated polyester yarn is subjected to a process in which the polyester is depolymerized into an oligoester consisting on average of between 3 and 30 monomeric units wherein the remainder of the dye is removed from the oligoester by adsorption to particulate matter in a mixture with the oligoester; and a third step in which the oligoester is separated from the particulate matter comprising the adsorbed dye, thereby providing a decolorized oligoester suitable for repolymerization, consisting on average of between 3 and 30 monomeric units.

A method and system for converting copper cyanide to copper oxide is provided. The method includes contacting a copper cyanide solution with an acidic solution in a precipitation tank under reaction conditions sufficient to produce a copper cyanide slurry, removing the copper cyanide slurry from the precipitation tank, separating solid copper cyanide from the copper cyanide slurry in a first separation device, removing the solid copper cyanide from the first separation device, contacting the solid copper cyanide with a sodium hydroxide solution in a production tank under reaction conditions sufficient to produce a copper oxide slurry, removing the copper oxide slurry from the production tank, separating solid copper oxide from the copper oxide slurry in a second separation device, and removing from the second separation device any residual sodium hydroxide not reacted during the process of contacting the solid copper cyanide with the sodium hydroxide solution in the production tank.

Methods and systems for the extraction of magnetic material from magnet containing material, and for extraction of rare earth elements (REEs) from the magnetic material are disclosed. An exemplary system includes a milling / washing unit for magnet containing material such as end-of-life motors, hard drives, partially deconstructed motors, magnet-containing end-of-life product, or parts thereof, and outputting magnetic components by exploiting magnetic properties of ferromagnetic and paramagnetic materials in the presence and absence of electromagnetic fields in conjunction with other physical properties such as size and density. The system also includes a chemical processing unit for receiving the magnetic components to extract rare earth elements in the material. Chemical processes are disclosed for separating rare earth elements from magnetic components.

A bio-nylon fiber containing an antioxidant active ingredient and a method for preparing the same are provided. [Solution] The method for preparing bio-nylon fiber containing antioxidant active ingredients includes the steps of preparing buckwheat leaf extract, preparing filipendula extract, preparing a porous base carrier, amination treatment, modification treatment, loading, preparing a functional masterbatch, and spinning. [Effects] The method for preparing bio-nylon fiber containing antioxidant active ingredients of the present invention can improve the binding performance of the plant extract active ingredients with antioxidant function with nylon fiber, effectively avoiding the problem of the plant extract active ingredients becoming less stable and easily inactivated during the acid dyeing process, effectively avoiding the problem of the plant extract active ingredients affecting the dyeing effect and causing uneven dyeing, and further improving the wash resistance and physical properties of nylon fiber.

A composition comprising: (i) 1,1-difluoroethene (vinylidene fluoride, R-1132a); (ii) carbon dioxide (CO2, R-744); (iii) pentafluoroethane (R-125); and (iv) one or more of trifluoromethane (R-23) and hexafluoroethane (R-116).

What is provided is a tin recovery method for recovering tin from a tin-containing material, the method including: an oxidation leaching step of performing oxidative leaching of tin in a tin-containing material into a leachate composed of an acidic solution of sulfuric acid to obtain a post-leaching liquid containing tin; an oxidation step of adding a substance that supplies sodium chloride and divalent copper ions to the post-leaching liquid obtained in the oxidation leaching step and oxidizing divalent tin ions contained in the post-leaching liquid to tetravalent tin ions; and a neutralization step of neutralizing the post-leaching liquid after the oxidation step to obtain a tin-containing precipitate.

The present disclosure relates to a process for purifying the lithium salt of bis(fluorosulfonyl)imide (LiFSI), in which the purified LiFSI is extracted from crude LiFSI through supercritical fluid extraction. The present invention also relates to the purified LiFSI obtained therefrom and the use of such LiFSI in an electrolyte for a battery.

A method for isolating astatine, comprising the steps of: (a) contacting a composition comprising astatine and bismuth with nitric acid to form a first solution comprising astatine, bismuth, and nitric acid, (b) contacting a resin with the first solution to separate the astatine from the first solution and partition it onto the resin, and (c) eluting the astatine from the resin. The astatine-containing composition is a compound of formula AtO + X ‐ (X ‐ is a counter ion).

An object of the present disclosure is to provide a color-based automatic operation control system and control method for a lithium-ion battery continuous multi-stage solvent extraction device, which stably maintains the operation state of solvent extraction by utilizing color differences present in the organic phase solution and the aqueous phase solution depending on the type of valuable metal. To achieve the above object, a color-based automatic operation control system for a lithium-ion battery continuous multi-stage solvent extraction device according to an exemplary embodiment of the present disclosure includes: a continuous multi-stage solvent extraction device configured to extract a target metal by utilizing color differences present in the organic phase solution and the aqueous phase solution depending on the type of valuable metal; and a server configured to maintain the safety of the operation state by analyzing the color detected from the continuous multi-stage solvent extraction device.

A method for leaching polycrystalline diamond (PCD) cutting elements, the method comprising: providing a leaching vessel; introducing a volume of a liquid acid leach mixture into the leach vessel; attaching the PCD cutting element to a jig; applying a sealing member around the PCD cutting element; positioning the jig to which the PCD cutting element is attached in the leaching vessel to suspend the PCD cutting element above the acid leaching mixture; sealing the leaching vessel to provide a closed system; raising the temperature of the liquid acid leach mixture to a first temperature of about 100 DEG C to about 300 DEG C to convert at least some of the liquid acid leach mixture to one or more acid vapors; maintaining the temperature at the first temperature for a period of time while exposing the PCD cutting element to the one or more acid vapors to leach the PCD cutting element; and reducing the temperature to an ambient temperature.

Described herein are methods of recovering lithium from dilute lithium sources. The methods include extracting lithium from an extraction feed using direct lithium extraction in an extraction stage to yield a lithium intermediate, performing one or more concentration operations, each concentration operation concentrating an input stream to yield an output feed, wherein the input stream is obtained from the lithium intermediate and / or the extraction feed is obtained from the output feed. At least one of the concentration operations includes a membrane separation operation having a plurality of reactors in series each having a semi-permeable membrane, such as a counter-flow reverse osmosis operation. Methods may also include generating a low TDS stream as a permeate from any of the one or more concentration operations, wherein the low TDS stream is recycled or used as fresh water.

The utility model relates to the technical field of extraction devices, in particular to a chemical extraction and separation device which comprises an extraction pipe body, a connecting pipe is connected to the extraction pipe body, a second flange is arranged at the connecting end of the connecting pipe, and a plurality of symmetrically distributed positioning grooves are formed in the second flange; a liquid conveying pipe is connected to the second flange, a first flange attached to the second flange is arranged at the end of the liquid conveying pipe, and a fixing plate corresponding to the positioning groove is arranged on the first flange; the device further comprises a locking mechanism. By arranging the first flange, the second flange, the fixing plate, the inserting plate and the locking mechanism, the pipeline is free from being fixed by a plurality of bolts and is free from being disassembled by screwing a plurality of bolts one by one by using a tool, so that the labor consumption is reduced, the workload is reduced, the pipeline is conveniently and quickly overhauled, and the maintenance efficiency of the extraction device pipeline is improved; the use of large factories with large workload is facilitated, and the practicability is improved.

The purification process of the graphite material includes a pelletizing step (14), a caustic firing step (16) to provide a sintered product, a water leaching step (18) to solubilize impurity minerals, send them to waste liquid treatment, and separate them, a first sulfuric acid leaching step (20) to solubilize remaining impurity minerals, send them to waste liquid treatment, and separate them from the leached solids, a hydrofluoric acid leaching step (22) to solubilize partially leached impurity minerals, send them to waste liquid treatment, and separate them from the leached solids, a second sulfuric acid leaching step (24) to solubilize impurity minerals not leached in the previous step and components precipitated in the hydrofluoric acid leaching step (22), send them to waste liquid treatment, and separate them from the leached solids, and a washing stage to separate remaining soluble impurities and provide a purified graphite material (32).

A black pepper cannabinoid extract includes beta-caryophyllene and five or more other terpenes. The invention also relates to a method of producing the black pepper cannabinoid extract, including the steps of: extracting black pepper to produce a first extract having fat-soluble components; winterizing the first extract to remove components differentiated by a higher solidification temperature; fractionally distilling the winterized fat-soluble components of the first extract to produce a plurality of black pepper lipid fractions; and blending two or more of the black pepper lipid fractions to produce a black pepper cannabinoid extract. The black pepper cannabinoid extract includes beta-caryophyllene and five or more other terpenes.

A method for recycling nickel, cobalt and manganese from a feed liquid containing nickel, cobalt and manganese, the method comprising: (1) subjecting the feed liquid to a first extraction to obtain an aqueous phase 1 and an organic phase 1; (2) subjecting the aqueous phase 1 to a second extraction to obtain an organic phase 2 and an aqueous phase 2 having a pH value of 5-7.5; and (3) successively subjecting the organic phase 2 to washing and reverse extraction to obtain a solution containing nickel, cobalt and manganese, wherein an extractant A used in the second extraction comprises a carboxylic acid extractant.

The present invention discloses a method for producing biocrude and bioactive substances from microalgae biomass, comprising the steps of: mixing and stirring dry microalgae biomass with water and an acid catalyst; heating the mixture at high pressure at a temperature and time based on each individual species or processing the biomass mixture in a colloidal mill (202) with solvent; separating lysed algae cells into non-polar extracts from water-soluble extracts via vacuum filtration (102); washing the lysed algae cells and non-polar extracts with organic solvents; separating the organic solvent mixture, which comprises ethanol and long-chain fatty acids, from the remaining biochar via vacuum filtration (102); and separating the ethanol from the fatty acids via distillation or rotary evaporator (204) to extract bio-oil.

A device for automated or manual group separations of complex biological mixtures and methods of use are described. The device is a gel filtration pipette tip having a size exclusion media therein and held in place by a filter at the distal end of the pipette tip and an optional removable or pierceable barrier at the proximal end of the pipette tip. The size exclusion media is wetted by aspirating a solvent from the bottom of the pipette tip and equilibrating the solvent with the size exclusion media. The solvent is then allowed to gravity drain from the pipette tip, allowing the size exclusion media to settle and reproducibly pack into a homogenous gel. Gel filtration separations can then be performed with the gelled size exclusion media.

Dried blood spots (DBS) collected on a substrate material are used in the quantitation of amino acids, acylcamitines, organic acids and numerous other small molecules. One of their main application areas is newborn screening. In order to properly quantitate small molecules of target analytes in DBS, stable isotope labeled internal standards that are typically deuterium or carbon 13 labeled versions of the desired target analytes to be quantitated are pre-loaded onto the substrate before blood collection. For example, phenylalanine with 6 Carbon 13 atoms is used as a reference to quantitate phenylalanine.

Described herein are methods of recovering lithium from dilute lithium sources. The methods include concentrating a dilute aqueous lithium source to yield an extraction feed having an extraction lithium concentration; extracting lithium from the extraction feed using direct lithium extraction in an extraction stage to yield a lithium intermediate; concentrating a stream obtained from the lithium intermediate in a concentration stage to yield a lithium concentrate; and converting lithium in the lithium concentrate to lithium hydroxide.