CAS: 1303-33-9; Arsenic(Iii) Sulfide

专利信息

专利号:US-11945957-B2
优先权日:2017-10-17
标题 :Aqueous composition and a method of producing durable and extremely efficient water repelling superhydrophobic materials at ambient condition thereof
发明人：THALAPPIL PRADEEP; BAIDYA AVIJIT; GANAYEE MOHD AZHARDIN; RAVINDRAN SWATHY JAKKA
权利人:INDIAN INSTITUTE OF TECH MADRAS; INDIAN INST TECH MADRAS
摘要:The present invention relates to a durable and multifunctional superhydrophobic coating composition and water based fabrication method of producing the durable and multifunctional superhydrophobic coating composition via chemical modification and functionalization of hydrophilic material by silanes under room temperature without any organic solvents. Synthesis of chemically modified cellulose nanofibers or clay in water forms excellent water repelling thin films upon coating over various substrates. The super hydrophobic materials are used as additive for paints, pigments, paper, varnish and, textile and used for various industrial applications such as construction of buildings and other super structures.

专利号:US-12037241-B2
优先权日:2018-09-17
标 题 :Synthesis of ammonium dinitramide (ADN)
发明人：EK STEFAN; JOHANSSON JONAS
权利人:TOTALFOERSVARETS FORSKNINGSINSTITUT
摘要:The invention concerns a method for making ammonium dinitramide from guanylurea dinitramide in one single process step. Guanylurea dinitramide is reacted with an ammonium sulfate in a reaction solution comprising water and acetone and an ion exchange gives ammonium dinitramide. By using acetone the yield is increased compared to known processes as formed guanylurea sulfate is poorly soluable in a water-acetone solution and precipitates, while guanylurea dinitramide has higher solubility in the solution than in only water. The guanylurea sulfate precipitate formed in the reaction solution that contains acetone is less sticky than if formed in water or in a water-alcohol solution and therefore easier to filter off. The use of acetone also allows lower process temperatures to be used than in previously known methods for producing guanylurea dinitramide. Conclusively, the method gives a higher yield, demands considerable smaller amounts of solvent and allows lower process temperatures to be used than in any formerly known process.

专利号:US-12416029-B2
优先权日:2016-06-27
标 题 :Compositions and methods for making benzylisoquinoline alkaloids, morphinan alkaloids, thebaine, and derivatives thereof
发明人：FACCHINI PETER JAMES; CHEN XUE; COLBECK JEFFREY C; TUCKER JOSEPH E
权利人:ANTHEIA INC
摘要:Disclosed herein are methods that may be used for the synthesis of benzylisoquinoline alkaloids (“BIAsâ€?) such as alkaloid morphinan. The methods disclosed can be used to produce thebaine, oripavine, codeine, morphine, oxycodone, hydrocodone, oxymorphone, hydromorphone, naltrexone, naloxone, hydroxycodeinone, neopinone, and/or buprenorphine. Compositions and organisms useful for the synthesis of BIAs, including thebaine synthesis polypeptides, purine permeases, and polynucleotides encoding the same, are provided.

专利号:US-7580182-B2
优先权日:2007-01-30
标 题:Frequency synthesis for acousto-optic devices
发明人：KUMP JOHN D; JUNDT DIETER
权利人:CRYSTAL TECH INC
摘要:A system for controlling an acousto-optic device includes an acousto-optic device having an acoustic transducer and configured to store a number of design specific parameters for a parametric tuning algorithm. the system includes a frequency synthesizer coupled to the acousto-optic device and configured to provide a radio frequency tuning signal to the acousto-optic device via the acoustic transducer. A programmable controller is coupled to the acousto-optic device and the frequency synthesizer and wherein is configured to read the design specific parameters and to receive a second number of parameters comprising one or more of environmental parameters, setup specific parameters and user specified performance parameters. the programmable controller is also configured to apply the design specific parameters and the other parameters to the design specific parametric tuning algorithm to select a radio frequency tuning signal that optimizes a user specified performance parameter.

专利号:WO-2024207126-A1
优先权日:2023-04-06
标 题 :Procedure for the stabilization of arsenical residues by means of the precipitation of tooeleite by thermal stabilization
发明人：PEZOA CONTE RICARDO MIGUEL; ACUÑA GOYCOLEA MARCELO GUSTAVO; CRISTIAN FELIPE CALDERÓN ESPINOZA
权利人:ECOMETALES LTD
摘要:The invention discloses a process for the stabilization of arsenical waste by means of the precipitation of tooeleite by thermal stabilization, the process comprising the following steps: a first step of neutralization, in which the arsenical effluent is brought into contact with a first neutralizer to generate a first neutralized arsenical effluent; a second step of Fe(III)/As(III) ratio adjustment, in which the first neutralized arsenical effluent is mixed with a first ferric solution, to generate a third arsenic effluent; a third step of arsenic precipitation, in which the pH of the third arsenical effluent is adjusted with a second neutralizer to generate a first arsenical residue slurry; a fourth step of solid-liquid separation, in which the first arsenical residue slurry is separated to generate a fourth arsenical effluent and a first arsenical residue; a fifth step of calcination, in which the first arsenical residue is calcined to generate a second arsenical residue; a sixth step of washing, in which the second arsenical residue is washed with an aqueous solution to generate a second arsenical residue slurry; and a seventh step of solid-liquid separation, in which the second arsenical residue slurry is separated to generate a fifth arsenical effluent and a third stable arsenical residue in the form of tooeleite. The invention solves the technical problem of removing arsenic from arsenical effluents to generate stable arsenical residues which, for their synthesis, do not require an oxidation step to oxidize the arsenous ion to arsenate ion, nor the application of heat in the precipitation step.

专利号:CN-115968371-A
优先权日:2020-10-20
标题:Process for the synthesis of alkoxy-containing aminosiloxanes