51results about How to "Realize separation and extraction" patented technology

The invention discloses a fractional method for extracting bioactive components from dates; the dates are selected, enucleated, washed with water, dried, ground into particles, added with 65-75% of ethanol to be extracted for 2-3 times, and separated into date slag and filtrate; the filtrate is concentrated to obtain total flavonol soluble extract, the date slag is added with deionized water, theweight of which is 10-15 times that of the date slag, to be extracted for 2-3 times and separated into water extract and residue; the water extract is concentrated to 1 / 8-1 / 6 of the original volume, the concentrated solution is added with 95% of ethanol which is 4-6 times that of the volume of the concentrated solution to carry out alcohol precipitation separation for 10-18 hours, so as to obtainprecipitate and filtrate; the precipitate is washed by the ethanol with the concentration of over 98% for 2-3 times, and is dried to obtain date crude polysaccharide, the filtrate is concentrated to obtain ribonucleotide water soluble extract; the residue is dried and ground into dietary fiber powder. The method realizes one-step fractional extraction of a plurality of active components from the dates, has simple operation, and does not adopt any organic solvent except ethanol, thus having safety, no toxicity and residue; the active components in dates can be completely extracted, thus achieving the purpose of making best use of dates.

The invention discloses an efficient and environment-friendly recovery method for precious metal palladium in decommissioned solid oxide fuel cells. In the method, decommissioned solid oxide fuel cells are disassembled and crushed, and then placed in octylphenol polyoxyethylene ether to remove organic substances, washed After drying; the powder obtained in the previous step is lightly burned, and soaked in a deep eutectic solvent for a period of time, filtered, and the filter residue is washed with distilled water several times; the filter residue is placed in the prepared [Hbet][Tf2N] The leaching of Pd is carried out in the ionic liquid; after the leaching is completed, a three-electrode system is constructed with the leaching solution as the electrolyte for the electrodeposition of Pd. After the deposition is completed, the deposition solution is placed in a centrifugal device to separate Pd, and it can be washed and dried. Elemental Pd was obtained. The invention avoids a large amount of use of acid and alkali, and can recover and obtain relatively high-purity noble metal Pd on the basis of simple process and environmental protection.

The present invention relates to a process for extracting and separating micropowder from iron and steel smelting converter steel slag treatment, in particular to a device for extracting and separating micropowder from iron and steel smelting converter steel slag treatment, comprising a support base, a bearing tray, a magnetic separation assembly, a push rod assembly, a rotating support mechanism and Rotary drive mechanism; the magnetic separation assembly includes a cylindrical support seat and three electromagnet disks, the ejector rod assembly includes a fixed shaft, a rotor plate, two ejector rod parts and two springs, and the rotary material supporting mechanism includes a center Drum, four trays and four tension springs; the device provided by the invention adopts the separation and extraction method of dry magnetic separation, which can realize the separation and extraction of metal iron powder in steel slag fine powder, and has a simple structure, which can be used in production In the process of treatment, the expenditure on water and electricity costs is saved, and the waste of separated metal iron powder is avoided.