Matches in SemOpenAlex for { <https://semopenalex.org/work/W4247338175> ?p ?o ?g. }
Showing items 1 to 76 of
76
with 100 items per page.
- W4247338175 endingPage "5" @default.
- W4247338175 startingPage "5" @default.
- W4247338175 abstract "The study was undertaken to produce superfine alumina trihydrate (ATH) from Bayer liquor. The specialty grade hydroxides suitable for nonmetallurgical applications should conform to certain qualities such as fineness, purity, brightness, etc. In the present paper, the effects of a number of parameters, such as precipitation, temperature, amount of seed, surface area of seed, precipitation time, soda content of pregnant liquor, addition of aluminium sulfate (modifier), etc., on the particle size of the precipitated ATH were examined. At higher temperatures, the particle size increases, whereas it is reduced at lower temperatures. The seed surface area and seed quantity are found to have marked effects on the particle size of the precipitated ATH. The higher seed specific surface area and the higher seed quantity favour the production of finer-sized particles. The increased soda content in the pregnant liquor also produces finer-sized particles. The most important parameter that influenced the precipitation process with respect to the particle size is the addition of a modifier namely, aluminium sulfate. The particle size is reduced to ∼1 μm even with the addition of a small quantity of aluminium sulfate. It is observed that the formation of finer-sized particles is associated with the degree of rate of nucleation, while the level of supersaturation controls the degree of rate of the nucleation. The seed dissolution in excess soda, available in Bayer liquor, enhances this supersaturation level. When aluminium sulfate is added, the alumina available in the modifier and excess dissolution of the seed due to the addition of a modifier further increases the supersaturation. The seed dissolution, thus, may be considered as a major factor that controls the nucleation rate. Therefore, the mechanism for the fine ATH precipitation from Bayer liquor may be modified to follow the steps: (I) seed dissolution, (II) nucleation, (III) agglomeration, and (IV) growth." @default.
- W4247338175 created "2022-05-12" @default.
- W4247338175 date "2006-09-01" @default.
- W4247338175 modified "2023-09-25" @default.
- W4247338175 title "Vietnam: Nippon Light Metal, Sojitz & Vinachem – ATH" @default.
- W4247338175 doi "https://doi.org/10.1016/s0969-6210(06)71127-4" @default.
- W4247338175 hasPublicationYear "2006" @default.
- W4247338175 type Work @default.
- W4247338175 citedByCount "0" @default.
- W4247338175 crossrefType "journal-article" @default.
- W4247338175 hasConcept C107054158 @default.
- W4247338175 hasConcept C111368507 @default.
- W4247338175 hasConcept C121332964 @default.
- W4247338175 hasConcept C127313418 @default.
- W4247338175 hasConcept C127413603 @default.
- W4247338175 hasConcept C147424627 @default.
- W4247338175 hasConcept C147789679 @default.
- W4247338175 hasConcept C153294291 @default.
- W4247338175 hasConcept C178790620 @default.
- W4247338175 hasConcept C185592680 @default.
- W4247338175 hasConcept C187530423 @default.
- W4247338175 hasConcept C191897082 @default.
- W4247338175 hasConcept C192562407 @default.
- W4247338175 hasConcept C199289684 @default.
- W4247338175 hasConcept C200447597 @default.
- W4247338175 hasConcept C2776989763 @default.
- W4247338175 hasConcept C2778343803 @default.
- W4247338175 hasConcept C2778517922 @default.
- W4247338175 hasConcept C2779970790 @default.
- W4247338175 hasConcept C42360764 @default.
- W4247338175 hasConcept C513153333 @default.
- W4247338175 hasConcept C61048295 @default.
- W4247338175 hasConcept C88380143 @default.
- W4247338175 hasConceptScore W4247338175C107054158 @default.
- W4247338175 hasConceptScore W4247338175C111368507 @default.
- W4247338175 hasConceptScore W4247338175C121332964 @default.
- W4247338175 hasConceptScore W4247338175C127313418 @default.
- W4247338175 hasConceptScore W4247338175C127413603 @default.
- W4247338175 hasConceptScore W4247338175C147424627 @default.
- W4247338175 hasConceptScore W4247338175C147789679 @default.
- W4247338175 hasConceptScore W4247338175C153294291 @default.
- W4247338175 hasConceptScore W4247338175C178790620 @default.
- W4247338175 hasConceptScore W4247338175C185592680 @default.
- W4247338175 hasConceptScore W4247338175C187530423 @default.
- W4247338175 hasConceptScore W4247338175C191897082 @default.
- W4247338175 hasConceptScore W4247338175C192562407 @default.
- W4247338175 hasConceptScore W4247338175C199289684 @default.
- W4247338175 hasConceptScore W4247338175C200447597 @default.
- W4247338175 hasConceptScore W4247338175C2776989763 @default.
- W4247338175 hasConceptScore W4247338175C2778343803 @default.
- W4247338175 hasConceptScore W4247338175C2778517922 @default.
- W4247338175 hasConceptScore W4247338175C2779970790 @default.
- W4247338175 hasConceptScore W4247338175C42360764 @default.
- W4247338175 hasConceptScore W4247338175C513153333 @default.
- W4247338175 hasConceptScore W4247338175C61048295 @default.
- W4247338175 hasConceptScore W4247338175C88380143 @default.
- W4247338175 hasIssue "9" @default.
- W4247338175 hasLocation W42473381751 @default.
- W4247338175 hasOpenAccess W4247338175 @default.
- W4247338175 hasPrimaryLocation W42473381751 @default.
- W4247338175 hasRelatedWork W2021651573 @default.
- W4247338175 hasRelatedWork W2034290505 @default.
- W4247338175 hasRelatedWork W2082064353 @default.
- W4247338175 hasRelatedWork W2082252940 @default.
- W4247338175 hasRelatedWork W2149563739 @default.
- W4247338175 hasRelatedWork W2325931638 @default.
- W4247338175 hasRelatedWork W2384610402 @default.
- W4247338175 hasRelatedWork W2515626248 @default.
- W4247338175 hasRelatedWork W4232706887 @default.
- W4247338175 hasRelatedWork W4243282953 @default.
- W4247338175 hasVolume "2006" @default.
- W4247338175 isParatext "false" @default.
- W4247338175 isRetracted "false" @default.
- W4247338175 workType "article" @default.