专利号:WO-2020215726-A1 优先权日:2019-04-26 标题:Recycling process of waste generated in synthesis of thioacetic acid 发明人:ZHANG SHIJIN; ZHANG XIANGZHOU; LIU DUNSHENG; MA ZHAOFENG 权利人:TENGZHOU TIANSHUI BIO TECH CO LTD 摘要:A recycling process of waste generated in synthesis of thioacetic acid, comprising: in a thioacetic acid synthesis process, pretreating a thioacetic acid synthesis reaction solution, transferring the reaction solution to a filter device, separating a solid phase from a liquid phase in the reaction solution, and separating waste from the reaction solution in advance; and treating the separated solid phase: washing the solid phase, and performing separation after the washing; feeding the washed solid phase into a drier for drying, separating the dried solid, and condensing the liquid phase; adding the dried solid into a dissolving kettle, adding water into the kettle, stirring and heating to micro-boiling and reflux, so that the dried solid is fully dissolved; then adding a potassium hydroxide solution into the solution for neutralization, during which boiling should be prevented and which lasts for not shorter than 5 min; filtering a neutralization solution, and separating solid precipitate therefrom; neutralizing a filtrate obtained after the filtration to perform evaporative concentration, and primarily separating water from monopotassium phosphate; performing a further separation operation on a monopotassium phosphate concentrated solution, the solid obtained after the separation being a monopotassium phosphate product; and repeating the previous step for re-concentration.
专利号:US-8394421-B2 优先权日:2008-07-30 标 题:Synthesis of nanoparticles by fungi 发明人:MANSOORI G ALI 权利人:MANSOORI G ALI; UNIV ILLINOIS 摘要:Systems and methods for synthesizing silver nanoparticles (SNPs) using Trichoderma fungi have been developed. In an aspect, Trichoderma reesei was used for the extracellular synthesis of silver nanoparticles. In the biosynthesis of metal nanoparticle by a fungus, one or more enzymes or metabolites are produced that reduce a salt to its metallic solid nanoparticles through a catalytic process.
专利号:US-4592814-A 优先权日:1983-05-23 标题:Electrochemical synthesis of humic acid and other partially oxidized carbonaceous materials 发明人:VAUGHAN RONALD J; BY BANK OF AMERICA NT SA ADMIN 权利人:CHEVRON RES 摘要:A continuous cyclic electrolytic/carbon oxidation process wherein ferrous ion is oxidized at the anode and hydrogen is generated at the cathode of an electrolytic cell. The ferric ions produced at the anode are thereafter reduced to ferrous ions by contact with a solid carbonaceous material and the ferrous ions recycled for electrochemical reoxidation. The process produces partially oxidized organic products from the combustion process in high yield.
专利号:WO-2022168062-A1 优先权日:2021-02-08 标题:Variants of hyperthermophilic carboxylesterase for polymer synthesis 发明人:PIRES CARVALHO ALEXANDRA TERESA; LOPES COLUMBANO MARQUES ALMEIDA BEATRIZ; REIS FIGUEIREDO PEDRO MIGUEL; ANDRADE RIBEIRO DOURADO DANIEL FERNANDO; PAUL STEPHANIE; QUINN DEREK JOHN; MOODY THOMAS S; FERNANDES DE SOUSA PAULA ANDREIA; DOMINGUES SILVESTRE ARMANDO JORGE DOMINGUES SILVESTRE 权利人:UNIV DE COIMBRA; UNIV AVEIRO 摘要:The present invention discloses enzymatic variants comprising a sequence comprising at least one amino acid substitution at a position selected from the group consisting of mutations located close to the oxyanion hole region, mutations close to the catalytic His-Asp pair and/or mutations close to residues that interact with the lactone-ring and mutations outside the active site. A process for the synthesis of polymers comprising the step of using an enzymatic variant according to the invention is also disclosed, as well as the use of the enzymatic variants of the invention in biotechnology, in particular in polymer synthesis, in material industry and/or for biomedical applications.
专利号:US-12172152-B1 优先权日:2024-05-10 标 题 :Synthesis and application of zinc cobalt oxide/sulfide nanorods for photocatalytic water splitting and carbon dioxide reduction 发明人:TAHIR MUHAMMAD 权利人:UNIV UNITED ARAB EMIRATES 摘要:There is disclosed photoactive, one-dimensional zinc and cobalt-based bimetallic oxide and sulfide nanorods (ZnCo2O4 NRs, ZnCo2S4 NRs) and their heterojunction composites (1D/1D ZnCo2O4/ZnCo2S4) to be used as photocatalysts for hydrogen production and carbon dioxide reduction using solar energy. Also disclosed herein, is a method of synthesizing these compounds via hydrothermal processes and a self-assembly approach. 1D/1D heterojunctions of ZnCo2O4/ZnCo2S4 composites exhibit favourable interface interactions. The photocatalytic performance of both pure and composite materials is evaluated through water splitting to produce hydrogen and CO2 reduction to yield CO and CH4 using slurry phase and fixed bed photoreactor systems. ZnCo2S4 NRs demonstrate superior hydrogen production whereas CO2 reduction is more pronounced with ZnCo2O4. The highest photocatalytic efficiency is achieved using the heterojunction composites attributed to efficient charge carrier separation facilitated by a suitable band structure. The invention underscores the successful synthesis of highly efficient 1D structured materials for photocatalytic applications.
专利号:US-11932966-B2 优先权日:2020-04-16 标 题 :Metal sulfide filled carbon nanotubes and synthesis methods thereof 发明人:LI WENZHI; POUDEL YUBA 权利人:LI WENZHI; POUDEL YUBA; THE FLORIDA INTERNATIONAL UNIV BOARD OF TRUSTEES 摘要:Filled carbon nanotubes (CNTs) and methods of synthesizing the same are provided. An in situ chemical vapor deposition technique can be used to synthesize CNTs filled with metal sulfide nanowires. The CNTs can be completely and continuously filled with the metal sulfide fillers up to several micrometers in length. The filled CNTs can be easily collected from the substrates used for synthesis using a simple ultrasonication method.
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