Precipitate Coflotation of Calcium Sulfite and Calcium Carbonate: Application to Solids Removal from SO2 Wet-Scrubbing Slurries

Robert B. Grieves; Paul M. Schwartz; Dibakar Bhattacharyya

doi:10.1080/00372367508058057

Precipitate Coflotation of Calcium Sulfite and Calcium Carbonate: Application to Solids Removal from SO2 Wet-Scrubbing Slurries

Robert B. Grieves, Paul M. Schwartz, Dibakar Bhattacharyya

Research output: Contribution to journal › Article › peer-review

Abstract

An experimental study was conducted of the precipitate flotation of calcium sulfite, calcium carbonate, and of mixtures of both particulate species from suspensions of the order 0.1 M, with application to particle separation from the purge stream from a SO2-limestone wet scrubber. The strongly acidic, anionic surfactant, sodium dodecylbenzenesulfonate (NaDBS) provided excellent flotation of both calcium sulfite and calcium carbonate at neutral pH. For concentrations of calcium sulfite plus calcium carbonate of 3.7, 7.8, and 12.0 x 10-2 M, 95% flotation of precipitated sulfite and 97% flotation of carbonate can be accomplished at molar surfactant to sulfite plus carbonate ratios of 0.0035, 0.0023, and 0.0015, respectively.

Original language	English
Pages (from-to)	777-786
Number of pages	10
Journal	Separation Science
Volume	10
Issue number	6
DOIs	https://doi.org/10.1080/00372367508058057
State	Published - Dec 1975

Bibliographical note

Funding Information:
The authors wish to acknowledge gratefully the traineeship support of P. M. Schwartz by the U.S. Environmental Protection Agency through Training Grant T 900440.

ASJC Scopus subject areas

Chemical Engineering (all)
Process Chemistry and Technology
Chemistry (all)
Filtration and Separation
Engineering (all)

Access to Document

10.1080/00372367508058057

Cite this

@article{9db3e6fcee324f12add785789e260023,

title = "Precipitate Coflotation of Calcium Sulfite and Calcium Carbonate: Application to Solids Removal from SO2 Wet-Scrubbing Slurries",

abstract = "An experimental study was conducted of the precipitate flotation of calcium sulfite, calcium carbonate, and of mixtures of both particulate species from suspensions of the order 0.1 M, with application to particle separation from the purge stream from a SO2-limestone wet scrubber. The strongly acidic, anionic surfactant, sodium dodecylbenzenesulfonate (NaDBS) provided excellent flotation of both calcium sulfite and calcium carbonate at neutral pH. For concentrations of calcium sulfite plus calcium carbonate of 3.7, 7.8, and 12.0 x 10-2 M, 95% flotation of precipitated sulfite and 97% flotation of carbonate can be accomplished at molar surfactant to sulfite plus carbonate ratios of 0.0035, 0.0023, and 0.0015, respectively.",

author = "Grieves, {Robert B.} and Schwartz, {Paul M.} and Dibakar Bhattacharyya",

note = "Funding Information: The authors wish to acknowledge gratefully the traineeship support of P. M. Schwartz by the U.S. Environmental Protection Agency through Training Grant T 900440.",

year = "1975",

month = dec,

doi = "10.1080/00372367508058057",

language = "English",

volume = "10",

pages = "777--786",

number = "6",

}

TY - JOUR

T1 - Precipitate Coflotation of Calcium Sulfite and Calcium Carbonate

T2 - Application to Solids Removal from SO2 Wet-Scrubbing Slurries

AU - Grieves, Robert B.

AU - Schwartz, Paul M.

AU - Bhattacharyya, Dibakar

N1 - Funding Information: The authors wish to acknowledge gratefully the traineeship support of P. M. Schwartz by the U.S. Environmental Protection Agency through Training Grant T 900440.

PY - 1975/12

Y1 - 1975/12

N2 - An experimental study was conducted of the precipitate flotation of calcium sulfite, calcium carbonate, and of mixtures of both particulate species from suspensions of the order 0.1 M, with application to particle separation from the purge stream from a SO2-limestone wet scrubber. The strongly acidic, anionic surfactant, sodium dodecylbenzenesulfonate (NaDBS) provided excellent flotation of both calcium sulfite and calcium carbonate at neutral pH. For concentrations of calcium sulfite plus calcium carbonate of 3.7, 7.8, and 12.0 x 10-2 M, 95% flotation of precipitated sulfite and 97% flotation of carbonate can be accomplished at molar surfactant to sulfite plus carbonate ratios of 0.0035, 0.0023, and 0.0015, respectively.

AB - An experimental study was conducted of the precipitate flotation of calcium sulfite, calcium carbonate, and of mixtures of both particulate species from suspensions of the order 0.1 M, with application to particle separation from the purge stream from a SO2-limestone wet scrubber. The strongly acidic, anionic surfactant, sodium dodecylbenzenesulfonate (NaDBS) provided excellent flotation of both calcium sulfite and calcium carbonate at neutral pH. For concentrations of calcium sulfite plus calcium carbonate of 3.7, 7.8, and 12.0 x 10-2 M, 95% flotation of precipitated sulfite and 97% flotation of carbonate can be accomplished at molar surfactant to sulfite plus carbonate ratios of 0.0035, 0.0023, and 0.0015, respectively.

UR - http://www.scopus.com/inward/record.url?scp=0016597297&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0016597297&partnerID=8YFLogxK

U2 - 10.1080/00372367508058057

DO - 10.1080/00372367508058057

M3 - Article

AN - SCOPUS:0016597297

SN - 0037-2366

VL - 10

SP - 777

EP - 786

JO - Separation Science

JF - Separation Science

IS - 6

ER -

Precipitate Coflotation of Calcium Sulfite and Calcium Carbonate: Application to Solids Removal from SO2 Wet-Scrubbing Slurries

Abstract

Bibliographical note

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this