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Pikkukuva

Separation, treatment and utilization of inorganic residues of chemical pulp mills 

Kinnarinen, Teemu; Golmaei, Mohammad; Jernström, Eeva; Häkkinen, Antti (Elsevier, 2016-10-01)
The major inorganic solid residues of chemical pulp mills include green liquor dregs, various lime residues, recovery boiler fly ash, and salt cake produced at the chlorine dioxide generator. Only a small proportion of ...
Pikkukuva

Local properties of filter cakes formed from pH-adjusted bauxite residue slurries 

Kinnarinen, Teemu; Theliander, Hans; Häkkinen, Antti; Mattsson, Tuve (Elsevier, 2018-04-03)
Solid-liquid separation of bauxite residue is a topical issue in the alumina industry, not least due to the great quantity and problematic properties of this highly alkaline residue. The objective of this contribution is ...
Pikkukuva

Recovery of sodium from bauxite residue by pressure filtration and cake washing 

Kinnarinen, Teemu; Lubieniecki, Boguslaw; Holliday, Lloyd; Helsto, Jaakko-Juhani; Häkkinen, Antti (Elsevier, 2015-08-10)
Bauxite residue, the main waste fraction of alumina production, is extremely hazardous to the environment, as well as to human health. After the recovery of the pregnant liquor, the washed and thickened bauxite residue is ...
Pikkukuva

Effective removal of hazardous trace metals from recovery boiler fly ashes 

Kinnarinen, Teemu; Golmaei, Mohammad; Jernström, Eeva; Häkkinen, Antti (Elsevier, 2018-02-15)
The objective of this study is to introduce a treatment sequence enabling straightforward and effective recovery of hazardous trace elements from recovery boiler fly ash (RBFA) by a novel method, and to demonstrate the ...
Pikkukuva

Reduction of the width of particle size distribution to improve pressure filtration properties of slurries 

Kinnarinen, Teemu; Tuunila, Ritva; Häkkinen, Antti (Elsevier, 2017-03)
The filtration properties of mineral slurries depend for instance on the properties of the solid particles and on the way how these particles arrange themselves when the filter cake is formed. In cake filtration applications, ...
Pikkukuva

Challenges related to solute analysis of bauxite residue filter cakes 

Kinnarinen, Teemu; Huhtanen, Mikko; Holliday, Lloyd; Häkkinen, Antti (Elsevier, 2018-05)
Solute analysis of bauxite residue filter cakes is an important but not very well understood operation carried out at refineries and in scientific research. As more and more refineries rely currently on dry cake disposal ...
Pikkukuva

Prediction of pressure filtration characteristics of CaCO3 suspensions ground in a vertical stirred media mill 

Kinnarinen, Teemu; Tuunila, Ritva; Huhtanen, Mikko; Häkkinen, Antti; Kejik, Pavel; Sverak, Tomas (Elsevier, 2015-11)
Cake filtration is an important unit operation in the processing of minerals and pigments. The filtration characteristics are strongly dependent on the upstream processing of the ore, such as grinding parameters. This study ...
Pikkukuva

Dissolution of sodium, aluminum and caustic compounds from bauxite residues 

Kinnarinen, Teemu; Holliday, Lloyd; Häkkinen, Antti (Elsevier, 2015-08)
Bauxite residues consist of solid particles and a strongly alkaline liquid. Depending on the selected disposal method, the solids content of washed bauxite residues varies from 30 to 70 w-%. The objective of this study is ...
Pikkukuva

Wet grinding of CaCO3 with a stirred media mill: Influence of obtained particle size distributions on pressure filtration properties 

Kinnarinen, Teemu; Tuunila, Ritva; Huhtanen, Mikko; Häkkinen, Antti; Kejik, Pavel; Sverak, Tomas (Elsevier, 2015-03)
Chemical and process industries utilize stirred media mills for efficient fine grinding of solids. Stirred media mills, also referred to as stirred ball or stirred bead mills, generally have a good ability to produce fine ...
Pikkukuva

Enzymatically hydrolyzed and agitated biomass suspensions: experimental determination of fiber size distributions and filtration characteristics 

Kinnarinen, Teemu; Koiranen, Tuomas; Häkkinen, Antti; Louhi-Kultanen, Marjatta (Editura Academiei Romane, 2014)
Separation processes in general present a significant challenge in the production of bioethanol from lignocellulosic materials. Solid-liquid separation,prior to the concentration of ethanol (for instance, by distillation),is ...
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Lappeenrannan teknillinen yliopisto
PL 20
53851 Lappeenranta
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Sisältötyyppifulltext (23)Tekijä
Häkkinen, Antti (23)
Kinnarinen, Teemu (21)Huhtanen, Mikko (5)Golmaei, Mohammad (4)Holliday, Lloyd (4)Tuunila, Ritva (4)Jernström, Eeva (3)Louhi-Kultanen, Marjatta (3)Helsto, Jaakko-Juhani (2)Kejik, Pavel (2)... Katso lisääOrganisaatioyksikköSchool of Engineering ScienceAvainsanaBauxite residue (5)Filtration (4)Pressure filtration (4)Red mud (4)Cake resistance (3)Specific cake resistance (3)Caustic (2)Dissolution (2)Enzymatic hydrolysis (2)Filter cake (2)... Katso lisääJulkaisuaika2019 (1)2018 (6)2017 (1)2016 (1)2015 (5)2014 (2)2013 (5)2012 (2)
Lappeenrannan teknillinen yliopisto
PL 20
53851 Lappeenranta
Ota yhteyttä | Lähetä palautetta