Flotation selectivity of novel alkyl dicarboxylate reagents for calcite-fluorite separation
Document identifier: oai:DiVA.org:ltu-7761
Access full text here:
10.3139/113.110471Keyword: Engineering and Technology,
Materials Engineering,
Metallurgy and Metallic Materials,
Teknik och teknologier,
Materialteknik,
Metallurgi och metalliska material,
Mineral Processing,
Mineralteknik,
Framtidens gruvor (FOI),
Future mining (AERI)Publication year: 2016Relevant Sustainable Development Goals (SDGs):
The SDG label(s) above have been assigned by OSDG.aiAbstract: A series of amino acid-based surfactants with a fixed alkyl chain length and with two carboxyl groups separated by a spacer of one, two or three carbon atoms have been synthesized and evaluated as potential collectors for flotation of calcite and fluorite. A monocarboxylate amino acid-based surfactant having the same length of the hydrocarbon tail was also included in the study. Experiments using a Hallimond flotation tube showed that although the flotation reagents solely differs in terms of spacer, their efficacy in terms of flotation recovery varied very much. Whereas on calcite at pH 10.5 only the monocarboxylate collector gave a high yield, on fluorite at the same pH both the monocarboxylate and the dicarboxylate collectors with one carbon between the carboxyl groups gave good results. On calcite at the natural pH the monocarboxylate collector was most efficient but the dicarboxylate collectors with a two- and a three-carbon spacer also gave a reasonable recovery. On fluorite at the natural pH the dicarboxylate collectors with a two- and a three-carbon spacer were most efficient. The potential and the flotation recovery of the mineral particles as afunction of added collector was assessed and the adsorption was also monitored by diffuse reflectance infra-red spectroscopy. Taken together, the results showed that small changes in the head group region of the collector can radically affect flotation recovery. This type of knowledge is important to understand flotation selectivity in a mixture of similar minerals.
Authors
Tommy Karlkvist
Luleå tekniska universitet; Mineralteknik och metallurgi
Other publications
>>
Anuttam Patra
Luleå tekniska universitet; Kemiteknik
Other publications
>>
Romain Bordes
Department of Chemical and Biological Engineering, Chalmers University of Technology
Other publications
>>
Krister Holmberg
Department of Chemical and Biological Engineering, Chalmers University of Technology
Other publications
>>
Hanumantha Rao
Norwegian University of Science and Technology (NTNU), Trondheim
Other publications
>>
Record metadata
Click to view metadata
header:
identifier: oai:DiVA.org:ltu-7761
datestamp: 2021-04-19T12:20:25Z
setSpec: SwePub-ltu
metadata:
mods:
@attributes:
version: 3.7
recordInfo:
recordContentSource: ltu
recordCreationDate: 2016-09-29
identifier:
http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-7761
10.3139/113.110471
2-s2.0-84997683955
62cb80ee-2701-4146-bbac-57a22fff99fa
titleInfo:
@attributes:
lang: eng
title: Flotation selectivity of novel alkyl dicarboxylate reagents for calcite-fluorite separation
abstract: A series of amino acid-based surfactants with a fixed alkyl chain length and with two carboxyl groups separated by a spacer of one two or three carbon atoms have been synthesized and evaluated as potential collectors for flotation of calcite and fluorite. A monocarboxylate amino acid-based surfactant having the same length of the hydrocarbon tail was also included in the study. Experiments using a Hallimond flotation tube showed that although the flotation reagents solely differs in terms of spacer their efficacy in terms of flotation recovery varied very much. Whereas on calcite at pH 10.5 only the monocarboxylate collector gave a high yield on fluorite at the same pH both the monocarboxylate and the dicarboxylate collectors with one carbon between the carboxyl groups gave good results. On calcite at the natural pH the monocarboxylate collector was most efficient but the dicarboxylate collectors with a two- and a three-carbon spacer also gave a reasonable recovery. On fluorite at the natural pH the dicarboxylate collectors with a two- and a three-carbon spacer were most efficient. The potential and the flotation recovery of the mineral particles as afunction of added collector was assessed and the adsorption was also monitored by diffuse reflectance infra-red spectroscopy. Taken together the results showed that small changes in the head group region of the collector can radically affect flotation recovery. This type of knowledge is important to understand flotation selectivity in a mixture of similar minerals.
subject:
@attributes:
lang: eng
authority: uka.se
topic:
Engineering and Technology
Materials Engineering
Metallurgy and Metallic Materials
@attributes:
lang: swe
authority: uka.se
topic:
Teknik och teknologier
Materialteknik
Metallurgi och metalliska material
@attributes:
lang: eng
authority: ltu
topic: Mineral Processing
genre: Research subject
@attributes:
lang: swe
authority: ltu
topic: Mineralteknik
genre: Research subject
@attributes:
lang: swe
authority: ltu
topic: Framtidens gruvor (FOI)
genre: Research subject
@attributes:
lang: eng
authority: ltu
topic: Future mining (AERI)
genre: Research subject
language:
languageTerm: eng
genre:
publication/journal-article
ref
note:
Published
5
Validerad; 2017; Nivå 2; 2016-12-19 (andbra)
name:
@attributes:
type: personal
authority: ltu
namePart:
Karlkvist
Tommy
role:
roleTerm: aut
affiliation:
Luleå tekniska universitet
Mineralteknik och metallurgi
nameIdentifier:
kartom
0000-0002-7524-7767
@attributes:
type: personal
authority: ltu
namePart:
Patra
Anuttam
role:
roleTerm: aut
affiliation:
Luleå tekniska universitet
Kemiteknik
nameIdentifier:
anupat
0000-0001-9153-6262
@attributes:
type: personal
namePart:
Bordes
Romain
role:
roleTerm: aut
affiliation: Department of Chemical and Biological Engineering Chalmers University of Technology
@attributes:
type: personal
namePart:
Holmberg
Krister
role:
roleTerm: aut
affiliation: Department of Chemical and Biological Engineering Chalmers University of Technology
@attributes:
type: personal
authority: ltu
namePart:
Rao
Hanumantha
role:
roleTerm: aut
affiliation: Norwegian University of Science and Technology (NTNU) Trondheim
nameIdentifier: hrao
originInfo:
dateIssued: 2016
relatedItem:
@attributes:
type: host
titleInfo:
title: Tenside Surfactants Detergents
identifier:
0932-3414
2195-8564
part:
detail:
@attributes:
type: volume
number: 53
@attributes:
type: issue
number: 6
extent:
start: 516
end: 523
physicalDescription:
form: print
typeOfResource: text