9 results about "Sodium disulfite" patented technology

The present disclosure discloses a composition for hair growth comprising Larix europea wood extract, Camellia sinesis leaf extract, Pisum sativum sprout extract, Curcuma longa (Turmeric) callus conditioned media, Hamamelis virginiana (Witch Hazel), Rosmarinus officinalis Leaf Oil, Glycerin, Glycine, Zinc Chloride, Sodium Metabisulfite, Gluconolactone, Sodium Benzoate, Calcium Gluconate, Tetrasodium ethylenediaminetetraacetic acid (EDTA), Saccharide Isomerate, Hyaluronic Acid, Hydrolyzed Hyaluronic Acid, Propanediol, Biotinoyl Tripeptide- 1, Alpha Glucosyl Hesperidin, Caffeine, Hydrolyzed Pea Protein, Polyalkylene Glycol Mono Butyl Ether, Acrylates / C 10-30 Alkyl Acrylate Crosspolymer, Panthenol, Niacinamide, Arginine, PEG-40 Hydrogenated Castor Oil, Ethylhexylglycerin, Phenoxyethanol, and water is added to the composition until the desired volume is achieved. A method for preparing the composition for hair growth is also provided.

This invention relates to the field of exhaust gas purification technology, specifically to an exhaust gas purification device for sodium metabisulfite production, comprising: a spray purification mechanism, wherein an exhaust gas emission mechanism is provided within the spray purification mechanism; the spray purification mechanism includes a sealed tank, a packing assembly frame is fixed in the middle of the inner cavity of the sealed tank, a pumping mechanism is fixed on the outer surface of the sealed tank, and a sealing plate fixed to the sealed tank is provided above the packing assembly frame. This invention uses a differential pressure velocimeter to monitor the exhaust gas flow rate in real time, and achieves adaptive adjustment in conjunction with the sealing airbag two of the exhaust frame assembly. The exhaust gas pressure drives the sealing airbag two to move, thereby controlling the number and range of opening air outlets, ensuring that the exhaust gas enters the purification reaction zone uniformly and stably, effectively improving the stability of exhaust gas introduction. The sealing airbag one can flexibly adjust the number of spray heads working according to the exhaust gas volume, reducing purification liquid waste while ensuring purification effect.

This invention provides a production apparatus for coarse-crystalline sodium metabisulfite, comprising a primary reactor, a secondary reactor, a tertiary reactor, and a sodium carbonate liquid tank connected in series. The primary reactor has a sulfur dioxide inlet on its side wall. A flow pump is installed on the connecting pipe between the secondary reactor and the primary reactor. A gas flow meter is installed at the sulfur dioxide inlet. A pH probe is installed inside the primary reactor. A crystallizer is connected to the bottom of the primary reactor via a conveying pipe equipped with a conveying pump. The crystallizer is installed higher than the primary reactor. An overflow pipe connected to the primary reactor is located at the top of the crystallizer, and a discharge pipe with a discharge valve is connected to the bottom of the crystallizer. The coarse-crystalline sodium metabisulfite production apparatus provided by this invention can increase the particle size of sodium metabisulfite, improve the main content of the product, enhance product quality, and extend the product's agglomeration cycle.

The present invention discloses Process for the preparation of corrugated cardboard glue from avocado seed starch. The process involves the starch extraction from avocado pits [በ ዉ solution of sodium metabisulfite (Na:S:0s) to subdue polyphenol oxidation during the extraction process. Afterwards, 2 L of water were added to the slurry, which was then socked for 24 hours. The residue or the brown milk was placed [በ 8 vacuum oven and dried at 50 for 24 hours. The cardboard glue, Coragum, was formulated from avocado seed starch, caustic soda, and borax. The obtained Coragum glue showed that the low gelation temperature or characterized by high viscosity with the range of 35 to 40 The final product was formulated by mixing starch powder with 5% NaOH and 3% BORAX for commercialization purposes. The binding performance was examined by sticking the three compartments of the cardboard (flute, test liner, and kraft papers) with burst test of 9 Kg Cm-3 and crust of 27 Lb which are equivalent to TAPPI ISO standand methods. These outsanding results paves a way in producing paper based products and packaging soulutions.

This invention relates to a sodium polysulfide-based cyanide-free zinc-inhibiting composite inhibitor for lead-zinc separation, comprising, by weight: 1-2 parts sodium polysulfide, 3-5 parts zinc sulfate, 1-4 parts sodium metabisulfite, and 0.1-1.5 parts organic selectivity modifier; the sodium polysulfide is Na₂S. x The formula is: x = integers from 2 to 4; the organic selective regulator is one of L-cysteine, tannin, and modified corn starch; sodium polysulfide is the core zinc-inhibiting component; zinc sulfate and sodium polysulfide work synergistically to enhance the inhibition effect on sphalerite; and the organic selective regulator further strengthens the selectivity of "inhibiting zinc but not lead," reducing lead mineral loss. This invention's composite inhibition does not require operation under strongly alkaline conditions; only neutral slurry is needed to achieve efficient inhibition, significantly reducing the amount of lime used and avoiding the problem of excessively high alkalinity in the return water. This reduces the neutralization cost of return water treatment and fundamentally solves the problem of scaling and clogging in return water and slurry pipelines.

This application belongs to the field of chemical synthesis technology and discloses polyetheretherketone and its preparation method. The preparation method includes: under a protective atmosphere, reacting hydroquinone and a salt-forming agent in a composite antioxidant system to obtain a first mixture containing hydroquinone salt; reacting the first mixture with 4,4'-difluorobenzophenone to obtain a second mixture; adding a capping agent to the second mixture to carry out a capping reaction to obtain polyetheretherketone; wherein the composite antioxidant system includes diphenyl sulfone, sodium lignosulfonate, sodium metabisulfite, and sodium hypophosphite. This preparation method has few side reactions, high yield, and the prepared polyetheretherketone exhibits excellent properties.

The application discloses a detection method and application of entacapone double-dopa tablets, and operation steps of the detection method include sample pretreatment, chromatographic separation detection and quantification; the sample pretreatment comprises the following operation steps: grinding the entacapone double-dopa tablets into uniform fine powder, precisely taking a proper amount of tablet powder, adding a diluent to dissolve and stabilize, performing ultrasonic treatment, then constant volume and filtration, and taking the filtrate as a test sample solution; a solvent in the diluent is a mixed solution of methanol and water, and solutes in the diluent include sodium metabisulfite and disodium ethylenediaminetetraacetate. The application can realize synchronous analysis of entacapone, levodopa and carbidopa with rapidness, high separation degree, high sensitivity and high stability, so as to meet strict quality control requirements of the compound preparation.

The utility model is suitable for screening device technical field provides a kind of sodium pyrosulfite automatic screening device, including: screening box, its top wall is equipped with feed inlet, and bottom wall is equipped with discharge port, rectangular frame, it is set in screening box, and its inside movable mounting has multiple screening plates, rotating component, it is fixedly connected on rectangular frame side wall, and with multiple screening plates rotation connection, it is used to adjust the overturning angle of multiple screening plates, the device is vibrated screening mechanism by being set to control screening plate and carry out vibration screening, to screen out the part of smaller volume in material, and along discharge port and be discharged into first receiving box, subsequent again utilize rotating component control screening plate rotation, make the bulky material on it fall down, and be received by second receiving box, this kind of mode can avoid the mixture between different volume materials, simultaneously by the mode of vibration can shake out the material jammed in screen hole, avoid its plugging screen hole.

The utility model discloses a kind of sodium metabisulfite dewatering wet material drying pipeline structure;Belong to sodium metabisulfite production technical field;Its technical key points include vertically arranged drying pipeline and spiral feeder connected on drying pipeline, the bottom of the drying pipeline is connected with the right-angle air supply pipe connected with external hot air source, horn pipe gradually reduced in pipe diameter is equipped between right-angle air supply pipe and drying pipeline;Conducting connection is carried out in the bottom of right-angle air supply pipe corner section with the storage tube for storing falling powder, air deflector is equipped on right-angle air supply pipe horizontal section, and the front end of the air deflector is located above the opening end of storage tube;Discharge assembly is equipped in the bottom of storage tube;The utility model aims at providing a kind of sodium metabisulfite dewatering wet material drying pipeline structure for reducing powder into air pipe, convenient cleaning waste;For sodium metabisulfite dewatering wet material drying.