Matches in SemOpenAlex for { <https://semopenalex.org/work/W4384207457> ?p ?o ?g. }
Showing items 1 to 78 of
78
with 100 items per page.
- W4384207457 endingPage "012072" @default.
- W4384207457 startingPage "012072" @default.
- W4384207457 abstract "Abstract As an industrial by-product of flue gas desulfurization, flue gas desulfurization gypsum (FGD gypsum), whose main component is CaSO 4 · 2H 2 O, is an ideal raw material for mineralization. The technical problem of indirect mineralization lies in the efficient recycling of leaching agents, while amino acids have the lowest solubility at their isoelectric point, and thus the mixture of amino acids can be separated by adjusting the isoelectric point. Therefore, this paper proposes the use of aspartic acid (ASP) as leaching agent to realize the recycling of leaching agent. The leaching efficiency of Ca 2+ was regulated by changing the temperature, liquid-to-solid ratio, ammonia concentration, and the ratio of ASP to the amount of FGD gypsum substance. The results showed that ASP could sufficiently improve the leaching efficiency of Ca 2+ from desulfurized gypsum under alkaline conditions provided by ammonia. The leaching concentration of Ca 2+ was 7474.92 mg/L at 7% ammonia concentration, temperature of 30 °C, n (ASP) : n (FGD gypsum) = 2.5:1, and liquid-solid ratio of 30:1 mL/g, which was 12 times higher compared with the leaching concentration of Ca 2+ in pure water of 601.2 mg/L. While improving the leaching efficiency, ASP has lone electron pairs and can form soluble complexes with Ca 2+ under alkaline environment, which can convert the crystalline form of the product CaCO 3 to sphalerite during the mineralization process, and can regenerate ASP by adding acid to adjust the pH, and the recovery rate can reach 80.72%. This method effectively solves the problem of resource waste caused by the massive accumulation of desulfurization gypsum." @default.
- W4384207457 created "2023-07-14" @default.
- W4384207457 creator A5008543275 @default.
- W4384207457 creator A5015463546 @default.
- W4384207457 creator A5020891596 @default.
- W4384207457 creator A5033557134 @default.
- W4384207457 creator A5085107701 @default.
- W4384207457 date "2023-07-01" @default.
- W4384207457 modified "2023-10-18" @default.
- W4384207457 title "Preparation of calcium carbonate by indirect carbonation desulfurization gypsum with renewable aspartic acid" @default.
- W4384207457 cites W2220731470 @default.
- W4384207457 cites W2953098348 @default.
- W4384207457 cites W2967526139 @default.
- W4384207457 cites W2980989883 @default.
- W4384207457 cites W3036480392 @default.
- W4384207457 cites W3043317160 @default.
- W4384207457 cites W3083364483 @default.
- W4384207457 cites W3084523991 @default.
- W4384207457 cites W3129975877 @default.
- W4384207457 cites W3149905081 @default.
- W4384207457 cites W4220985674 @default.
- W4384207457 doi "https://doi.org/10.1088/1742-6596/2539/1/012072" @default.
- W4384207457 hasPublicationYear "2023" @default.
- W4384207457 type Work @default.
- W4384207457 citedByCount "0" @default.
- W4384207457 crossrefType "journal-article" @default.
- W4384207457 hasAuthorship W4384207457A5008543275 @default.
- W4384207457 hasAuthorship W4384207457A5015463546 @default.
- W4384207457 hasAuthorship W4384207457A5020891596 @default.
- W4384207457 hasAuthorship W4384207457A5033557134 @default.
- W4384207457 hasAuthorship W4384207457A5085107701 @default.
- W4384207457 hasBestOaLocation W43842074571 @default.
- W4384207457 hasConcept C120809312 @default.
- W4384207457 hasConcept C159390177 @default.
- W4384207457 hasConcept C159750122 @default.
- W4384207457 hasConcept C178790620 @default.
- W4384207457 hasConcept C179104552 @default.
- W4384207457 hasConcept C185592680 @default.
- W4384207457 hasConcept C191897082 @default.
- W4384207457 hasConcept C192562407 @default.
- W4384207457 hasConcept C2776382133 @default.
- W4384207457 hasConcept C2779229104 @default.
- W4384207457 hasConcept C39432304 @default.
- W4384207457 hasConcept C68000547 @default.
- W4384207457 hasConcept C90982505 @default.
- W4384207457 hasConceptScore W4384207457C120809312 @default.
- W4384207457 hasConceptScore W4384207457C159390177 @default.
- W4384207457 hasConceptScore W4384207457C159750122 @default.
- W4384207457 hasConceptScore W4384207457C178790620 @default.
- W4384207457 hasConceptScore W4384207457C179104552 @default.
- W4384207457 hasConceptScore W4384207457C185592680 @default.
- W4384207457 hasConceptScore W4384207457C191897082 @default.
- W4384207457 hasConceptScore W4384207457C192562407 @default.
- W4384207457 hasConceptScore W4384207457C2776382133 @default.
- W4384207457 hasConceptScore W4384207457C2779229104 @default.
- W4384207457 hasConceptScore W4384207457C39432304 @default.
- W4384207457 hasConceptScore W4384207457C68000547 @default.
- W4384207457 hasConceptScore W4384207457C90982505 @default.
- W4384207457 hasIssue "1" @default.
- W4384207457 hasLocation W43842074571 @default.
- W4384207457 hasOpenAccess W4384207457 @default.
- W4384207457 hasPrimaryLocation W43842074571 @default.
- W4384207457 hasRelatedWork W2017192164 @default.
- W4384207457 hasRelatedWork W2066251431 @default.
- W4384207457 hasRelatedWork W2085569860 @default.
- W4384207457 hasRelatedWork W2238593320 @default.
- W4384207457 hasRelatedWork W2343225635 @default.
- W4384207457 hasRelatedWork W2588619302 @default.
- W4384207457 hasRelatedWork W2624615695 @default.
- W4384207457 hasRelatedWork W2766323853 @default.
- W4384207457 hasRelatedWork W4318318002 @default.
- W4384207457 hasRelatedWork W822275767 @default.
- W4384207457 hasVolume "2539" @default.
- W4384207457 isParatext "false" @default.
- W4384207457 isRetracted "false" @default.
- W4384207457 workType "article" @default.