slurry

slur·ry

(slûr'ē)

n., pl., -ries.
A thin mixture of a liquid, especially water, and any of several finely divided substances, such as cement, plaster of Paris, or clay particles.

[Middle English slori, perhaps from sloor, mud.]

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A paste consisting of a suspension of a solid in a liquid.

Barron's Food Lover's Companion:

slurry

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A thin paste of water and flour, which is stirred into hot preparations (such as soups, stews and sauces) as a thickener. After the slurry is added, the mixture should be stirred and cooked for several minutes in order for the flour to lose its raw taste.

McGraw-Hill Dictionary of Architecture & Construction:

slurry

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1. A mixture of water and any finely divided insoluble material such as clay or portland cement and water.
2. See mud.

Wiley Dictionary of Flavors:

Slurry

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A type of suspension whose particles can be stabilized by increasing the viscosity of the liquid.
A temporary solid in liquid blend used often to 'wet' a gum or starch. In culinary arts, a cornstarch slurried in water is used to thicken a juice in a pan, creating a jus lié. See Jus Lié, Culinary Arts.

Oxford Dictionary of Biochemistry:

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a fluid suspension of particles having the consistency of cream.

Previous:	slow-cycling rhodopsin, slow reacting substance, slope
Next:	smRNA, small Hsp, small cytoplasmic RNA

Saunders Veterinary Dictionary:

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Solids in suspension. Used as a method of feeding pigs—slurry is pumped through fixed lines and delivered to troughs by hoses equipped with gasoline pump fittings. Used also as a means of disposing of feces and urine from cesspits under animal accommodation or trap tanks attached to milking sheds. Disposal is usually onto pasture. This creates poisoning hazards with respect to heavy metals and transmission of disease such as salmonellosis or Johne's disease.

Mosby's Dental Dictionary:

slurry

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A thin mixture of insoluble material floating in liquid.

Random House Word Menu:

categories related to 'slurry'

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Random House Word Menu by Stephen Glazier

For a list of words related to slurry, see:

Materials, Formations, and Substances - slurry: water mixture of insoluble mud or lime
Ceramics and Glassmaking - slurry: watery clay
Foolishness, Bunkum, and Trifles

Rhymes:

slurry

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See words rhyming with "slurry."

Wikipedia on Answers.com:

Slurry

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A slurry composed of glass beads in silicone oil flowing down an inclined plane.

A slurry is, in general, a thick suspension of solids in a liquid.

Contents

1 Examples of slurries
2 Slurry calculations
3 See also
4 References

Examples of slurries

Examples of slurries include:

A mixture of cement and water to form concrete
A mixture of thickening agent, oxidizers, and water used to form a gel explosive
A mixture of pyroclastic rock and water known as a lahar
A mixture of bentonite and water used to make slurry walls
A mixture of coal waste and water known as coal slurry
A mixture of wood pulp and water used to make paper
A mixture of animal waste and water used as fertilizer
A mixture of finely ground meat and water, centrifugally dewatered into meat slurry, a food product
An abrasive substance used in chemical-mechanical polishing
A mixture of ice crystals, freezing point depressant, and water called slurry ice
A mixture of raw materials and water involved in the rawmill manufacture of Portland cement
A mixture of minerals, water, and additives used in the manufacture of ceramics
A mixture of water and food starch used to thicken puddings, sauces, and gravys.

The term slurry in farming parlance refers to a mixture of animal waste and organic matter, typically stored in a slurry pit, for a slow natural conversion into fertiliser.

Slurry calculations

Determining solids fraction

To determine the percent solids (or solids fraction) of a slurry from the density of the slurry, solids and liquid^[1]

$\phi_{sl}=\frac{\rho_{s}(\rho_{sl} - \rho_{l})}{\rho_{sl}(\rho_{s} - \rho_{l})}$

where

ϕ s l

is the solids fraction of the slurry

ρ s

is the solids density

ρ s l

is the slurry density

ρ l

is the liquid density

In aqueous slurries, as is common in mineral processing, the specific gravity of the species is typically used, and since $S G w a t e r$ is taken to be 1, this relation is typically written:

$\phi_{sl}=\frac{\rho_{s}(\rho_{sl} - 1)}{\rho_{sl}(\rho_{s} - 1)}$

even though specific gravity with units tons/m^3 is used instead of the SI density unit, kg/m^3.

Liquid mass from mass fraction of solids

To determine the mass of liquid in a sample given the mass of solids and the mass fraction: By definition

$\phi_{sl}=\frac{M_{s}}{M_{sl}}$ *100

therefore

$M_{sl}=\frac{M_{s}}{\phi_{sl}}$

and

$M_{s}+M_{l}=\frac{M_{s}}{\phi_{sl}}$

then

$M_{l}=\frac{M_{s}}{\phi_{sl}}-M_{s}$

and therefore

$M_{l}=\frac{1-\phi_{sl}}{\phi_{sl}}M_{s}$

where

ϕ s l

is the solids fraction of the slurry

M s

is the mass or mass flow of solids in the sample or stream

M s l

is the mass or mass flow of slurry in the sample or stream

M l

is the mass or mass flow of liquid in the sample or stream

Volumetric fraction from mass fraction

$\phi_{sl,m}=\frac{M_{s}}{M_{sl}}$

Equivalently

$\phi_{sl,v}=\frac{V_{s}}{V_{sl}}$

and in a minerals processing context where the specific gravity of the liquid (water) is taken to be one:

$\phi_{sl,v}=\frac{\frac{M_{s}}{SG_{s}}}{\frac{M_{s}}{SG_{s}}+\frac{M_{l}}{1}}$

$\phi_{sl,v}=\frac{M_{s}}{M_{s}+M_{l}SG_{s}}$

and

$\phi_{sl,v}=\frac{1}{1+\frac{M_{l}SG_{s}}{M_{s}}}$

Then combining with the first equation:

$\phi_{sl,v}=\frac{1}{1+\frac{M_{l}SG_{s}}{\phi_{sl,m}M_{s}}\frac{M_{s}}{M_{s}+M_{l}}}$

$\phi_{sl,v}=\frac{1}{1+\frac{SG_{s}}{\phi_{sl,m}}\frac{M_{l}}{M_{s}+M_{l}}}$

Then since

$\phi_{sl,m}=\frac{M_{s}}{M_{s}+M_{l}}=1-\frac{M_{l}}{M_{s}+M_{l}}$

we conclude that

$\phi_{sl,v}=\frac{1}{1+SG_{s}(\frac{1}{\phi_{sl,m}}-1)}$

where

ϕ s l, v

is the solids fraction of the slurry on a volumetric basis

ϕ s l, m

is the solids fraction of the slurry on a mass basis

M s

is the mass or mass flow of solids in the sample or stream

M s l

is the mass or mass flow of slurry in the sample or stream

M l

is the mass or mass flow of liquid in the sample or stream

S G s

is the bulk specific gravity of the solids

References

^ Wills, B.A. and Napier-Munn, T.J, Wills' Mineral Processing Technology: an introduction to the practical aspects of ore treatment and mineral recovery, ISBN 978-0-7506-4450-1, Seventh Edition (2006), Elsevier, Great Britain

This entry is from Wikipedia, the leading user-contributed encyclopedia. It may not have been reviewed by professional editors (see full disclaimer)

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Translations:

Slurry

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Dansk (Danish)
n. - cementslam

Nederlands (Dutch)
slijk, slijpvloeistof

Français (French)
n. - boue, pâte
v. tr. - préparer une suspension (d'un solide dans un liquide)

Deutsch (German)
n. - Schlamm, Zementbrühe, Gülle
v. - zu Schlamm usw. machen

Ελληνική (Greek)
n. - (οικοδ.) αριάνι, ασβεστόγαλα
v. - ανακατεύω σε υγρό

Italiano (Italian)
melma, infangare

Português (Portuguese)
n. - pasta (f), massa ou mistura semi-fluída (barro ou cimento), calda (f)

Русский (Russian)
жидкий строительный раствор, дегазационный раствор

Español (Spanish)
n. - pasta aguada, lechada
v. tr. - convertir en pasta aguada

Svenska (Swedish)
n. - slam, sörja
v. - göra slam och sörja, gå i slam och sörja

中文（简体）(Chinese (Simplified))
泥浆, 浆

中文（繁體）(Chinese (Traditional))
n. - 泥漿, 漿

한국어 (Korean)
n. - 슬러리 (진흙, 시멘트 따위에 물을 섞어 만든 이장)

日本語 (Japanese)
n. - スラリー
v. - スラリーにする

العربيه (Arabic)
‏(الاسم) طين أو ملاط رقيق ألقوام (فعل) يغطي بالطين أو ألملاط ألرقيق‏

עברית (Hebrew)
n. - ‮תערובת דלילה, מלט, בוץ גליל‬

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Copyrights:

		American Heritage Dictionary. The American Heritage® Dictionary of the English Language, Fourth Edition Copyright © 2007, 2000 by Houghton Mifflin Company. Updated in 2009. Published by Houghton Mifflin Company. All rights reserved. Read more
		Oxford Dictionary of Chemistry. A Dictionary of Chemistry. Sixth Edition. Copyright © Market House Books Ltd, 2008. All rights reserved. Read more
		Barron's Food Lover's Companion. Food Lover's Companion. Copyright © 2001 by Barron's Educational Series, Inc. All rights reserved. Read more
		McGraw-Hill Dictionary of Architecture & Construction. McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc. All rights reserved. Read more
		Wiley Dictionary of Flavors. Copyright © 2008 by Wiley-Blackwell. Wiley and the Wiley logo are registered trademarks of John Wiley & Sons, Inc. and/or its affiliates in the United States and other countries. Used here by license. Read more
		Oxford Dictionary of Biochemistry. Oxford University Press. Oxford Dictionary of Biochemistry and Molecular Biology © 1997, 2000, 2006 All rights reserved. Read more
		Saunders Veterinary Dictionary. Saunders Comprehensive Veterinary Dictionary 3rd Edition. Copyright © 2007 by D.C. Blood, V.P. Studdert and C.C. Gay, Elsevier. All rights reserved. Read more
		Mosby's Dental Dictionary. Mosby's Dental Dictionary. Copyright © 2004 by Elsevier, Inc. All rights reserved. Read more
		Random House Word Menu. © 2010 Write Brothers Inc. Word Menu is a registered trademark of the Estate of Stephen Glazier. Write Brothers Inc. All rights reserved. Read more
		Rhymes. Oxford University Press. © 2006, 2007 All rights reserved. Read more
		Wikipedia on Answers.com. This article is licensed under the Creative Commons Attribution/Share-Alike License. It uses material from the Wikipedia article Slurry. Read more
		Translations. Copyright © 2007, WizCom Technologies Ltd. All rights reserved. Read more

	clay slip (materials)
	precoat (metallurgy)
	bentonite slurry (materials)

slurry

slur·ry

slurry

slurry

slurry

Slurry

slurry

slurry

slurry

categories related to 'slurry'

slurry

Slurry

Examples of slurries

Slurry calculations

Determining solids fraction

Liquid mass from mass fraction of solids

Volumetric fraction from mass fraction

See also

References

Slurry