Stripping


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stripping

[′strip·iŋ]
(chemical engineering)
In petroleum refining, the removal (by flash evaporation or steam-induced vaporation) of the more volatile components from a cut or fraction; used to raise the flash point of kerosine, gas oil, or lubricating oil.
(graphic arts)
In offset lithography, the process of positioning negatives or positives on a flat before making plates.
(metallurgy)
Removing a coating from the surface of a metal.

Stripping

Removal of forms from poured concrete after it has hardened.

Stripping

 

a mechanical method of separating the fibrous part from the woody part of the stalks of textile plants (dogbane, kenaf, balloonflower, and hemp) without preliminary wetting. The bast produced by stripping differs from the fiber of ordinary processing in that the fiber is not freed from its pectic and other adhesive substances.

Stripping

The removal of volatile component from a liquid by vaporization. The stripping operation is an important step in many industrial processes which employ absorption to purify gases and to recover valuable components from the vapor phase. In such processes, the rich solution from the absorption step must be stripped in order to permit recovery of the absorbed solute and recycle of the solvent. See Gas absorption operations

Stripping may be accomplished by pressure reduction, the application of heat, or the use of an inert gas (stripping vapor). Many processes employ a combination of all three; that is, after absorption at elevated pressure, the solvent is flashed to atmospheric pressure, heated, and admitted into a stripping column which is provided with a bottom heater (reboiler). Solvent vapor generated in the rebolier or inert gas injected at the bottom of the column serves as stripping vapor which rises countercurrently to the downflowing solvent. When steam is used as stripping vapor for a system not miscible with water, the process is called steam stripping.

In addition to its use in conjunction with gas absorption, the term stripping is also used quite generally in technical fields to denote the removal of one or more components from a mixed system. Such usage covers (1) the distillation operation which takes place in a distilling column in the zone below the feed point, (2) the extraction of one or more components from a liquid by contact with a solvent liquid, (3) the removal of organic or metal coatings from solid surfaces, and (4) the removal of color from dyed fabrics. See Electroplating of metals, Solvent extraction

stripping

1. In grading an area in which a foundation is to be built, the preliminary operation of removing trees, shrubs, vegetation, and topsoil.
2. Removing old paint, wallpaper, distemper, etc., by the use of a blowtorch, paint remover, steam stripping appliance, stripping knife, or other scraping tools.
3. Sealing the joint between a metal sheet and a built-up roofing membrane.
4. Taping the joints between insulation boards.
References in periodicals archive ?
This is a 100% pollution free stripping service for old rotary screens and various printing sizes, meshes and repeats are possible, whereas, the endring can also be removed in the same process with water stripping technology."
He added, although the life time of nickel screen usually depends on kind of dyestuffs and kind of screen used on the rotary machine, and also depends on what the squeegee type is (blade or magnet), and yet keeping all these parameters in mind, our machine enhances the life of the nickel screen as compared to chemical stripping keeping the above factors constant.
* cleaning the mold halves (airblowoffs, cleaning tools and disposal)--After stripping and before coating and coreset, loose sand must be removed from the mold or the castings will have sand defects;
* binder system--The type of nobake binder will affect: the amount of space needed for the binder to develop strength for stripping; the odor at the molding station [sand temperatures above 100F (37.8C) will affect the intensity of odors at mixing]; and the handling strength of the molds.
* Stripping transactions effected through a transfer of an interest in a partnership (or other passthrough entity).
* Other variations of stripping transactions that could involve licenses of intangible property; service contracts; leaseholds; or prepayment, front-loading, or retention of rights to receive future payments.
As illustrated in the example at right, use of the attribution rules in determining affiliated groups for earnings stripping purposes can result in a profitable corporation with normal debt-to-equity ratios having its interest expense deductions limited because its foreign parent has one or more less profitable or more leveraged operations in the United States.
Taxpayers need to consider the existence of other commonly controlled corporations when applying the earnings stripping rules.
In this case, one-half (i.e., the statutory rate of 30% less the 15% treaty rate) of the interest paid to a related Italian party would be considered tax-exempt for this purpose and, therefore, potentially subject to the earnings stripping rules.(9)
The earnings stripping provisions as originally enacted were intended to attack related person financing arrangements designed to erode the taxable earnings of a U.S.
Since the debt to equity ratio is clearly in excess of 1.5 to 1, the stripping provisions will apply.