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Related to Thickening: Thickening agent


(chemical engineering)
The concentration of the solids in a suspension in order to recover a fraction with a higher concentration of solids than in the original suspension.
(mining engineering)
Concentrating dilute slime pulp into a pulp containing a smaller percentage of moisture by rejecting the free liquid.



the removal of the liquid phase, for example, water, from disperse systems, for example, pulps, suspensions, and colloids. Thickening forms the basis for the production of condensed milk, fruit and vegetable juices, syrups, and purees. The process consists in the removal of moisture from the starting products in evaporators. After thickening, moisture content in milk and juices is reduced by a factor of 10–15.

As a production operation or, more frequently, an auxiliary operation in production, thickening is used in processes where one stage requires water but subsequent stages require a drastic reduction in the amount of water. Processes of this type include the production of paper, the concentration of ores, and processes in hydromechanization and hydrometallurgy. In the production of paper, the ground fibrous mass is mixed with water, thereby forming a suspension. After stirring and the removal of mechanical impurities, the suspension is subjected to thickening prior to shipment to the factory. In wet concentration of ores, a pulp is formed, which consists of a concentrate and 40–60 percent water. Since the water content in the concentrate shipped to the factory should not exceed 5–15 percent, the pulp is first thickened, which reduces the water content by a factor of 1.5–2, and then dehydrated, which results in an almost total removal of water. When dredges are used to work gravel deposits containing sand, the content of the material in the pulp is 3–6 percent by volume. Prior to screening and hydraulic separation, the sand in the pulp is thickened to a concentration of 10–15 percent.


References in periodicals archive ?
Together with a clinical history of inflammatory disease, heterogeneous appearance of liver, periportal involvement, diffuse low signal intensity of spleen on T2-weighted images, and bowel wall thickening findings can suggest systemic amyloidosis.
Fat stranding that is disproportionately more severe than the degree of wall thickening is a finding that suggests inflammatory diseases such as diverticulitis, appendicitis, or epiploic appendagitis.
The thickening of the CHL in the rotator interval has been considered to be related to external rotation, but the thickened CHL from the coracoid base to the superomedial capsule is responsible for the restriction in internal rotation.
syphilitica to provide information for more accurate identification of the commercialised material and elucidating the rhizophore thickening process.
Cutaneous changes also influence the eyelids, leading to thickening of the lids.
In generalized estimating equations analyses, progression was independently associated with US synovial thickening (odds ratio, 2.
The arterial thickening occurred regardless of the child's weight at birth, according to the paper, published in a specialist edition of the journal Archives of Disease in Childhood.
Horizontal shortening in the upper crust by brittle folding and faulting correlates positively with crustal thickening, an increase in Moho depth, and the topography.
A fairly common disorder (it affects one in six men over age 65) it is caused by a painless thickening and shrinkage of the connective tissue underneath the skin of the palm of the hand.
said Sahoko Takeuchi, Dow Corning Beauty and Personal Care marketing manager/The challenge was finding a renewable material that would allow emulsification and thickening.
On May 20, 2011, the Food and Drug Administration issued an advisory for parents and caregivers to stop feeding SimplyThick, "The thickening gel you can't taste," to premature infants born before 37 weeks.