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Methods and compositions for dust control

A technology of composition and dust, applied in the direction of pollution prevention methods, cleaning methods and utensils, chemical instruments and methods, etc., capable of solving problems such as limiting the conditions that can be used or imposed

Active Publication Date: 2019-02-15
ECOLAB USA INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This greatly limits the conditions under which they can be used or imposed

Method used

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  • Methods and compositions for dust control
  • Methods and compositions for dust control

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Embodiment

[0053]The foregoing may be better understood with reference to the following examples, which are shown for purposes of illustration, not limitation, of the scope of the invention. In particular, the examples illustrate representative examples of the principles inherent in the invention and these principles are not strictly limited to the specific conditions described in these examples. It is therefore to be understood that the present invention encompasses various changes and modifications of the embodiments described herein, and that such changes and modifications can be made without departing from the spirit and scope of the invention, and without diminishing its intended advantages. It is therefore intended that such changes and modifications be covered by the appended claims.

[0054] The pellet feed iron ore sample had a moisture content of about 8.0% and very few large particles. Since large size particles (30 mm) can strongly interfere with dust dispersion due to high ...

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Abstract

The present invention relates to methods and compositions for treating piles of particulate material to inhibit and prevent the loss of valuable fuel or mineral dust from release from storage piles or top-opening containers. The method involves separate application of two different compositions to the stack. When separated, the two compositions were low viscosity and easy to spray. When combined, the two compositions form a gel coat that is resistant to erosion but flexible while the pile or load is still settling, pushing, bumping, and otherwise moving around.

Description

Background technique [0001] The present invention relates to methods and compositions for containing particulate matter in open-top containers, including but not limited to open-top hopper cars, trucks, piles, and similar storage and / or transport containers. It is known to treat large quantities of particulate material, especially coal and iron ore, with binders (sometimes called encrusting agents) to encruste the surface and thereby preserve valuable material and prevent dust from being dispersed by the particles. Prior adhesives are described in US Pat. No. 5,441,566, among others. These binders include latex, petroleum products, and pine tar resins. Other binders include phenolic resins mixed with polyisocyanates in the presence of catalysts (described in US Patent 5,244,473), basic phenolic resins (described in US Patent 5,089,540), and hygroscopic solvents (methyl ethyl ketone) , polyvinyl acetate, and styrene in water (described in US Patent 5,487,764). Additional dus...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K3/22B08B17/02
CPCE21F5/06B08B17/00C09K3/22B08B17/02B05D7/00B05D1/36B05D1/02B05D1/34E21F5/00E21F5/02
Inventor 达尼洛·齐姆法比奥·佩肖托·马塞多·戈梅斯
Owner ECOLAB USA INC
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