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Chemical binder for coating payload in open top hopper cars, trucks, piles and similar storage/shipping containers

An adhesive, rail car technology for application in the field of chemical adhesives for coating loads in open top hopper cars, trucks, buildings, similar storage units/containers, capable of addressing limitations Conditions of use and application etc.

Active Publication Date: 2013-12-04
NALCO CO
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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 and applied

Method used

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  • Chemical binder for coating payload in open top hopper cars, trucks, piles and similar storage/shipping containers
  • Chemical binder for coating payload in open top hopper cars, trucks, piles and similar storage/shipping containers
  • Chemical binder for coating payload in open top hopper cars, trucks, piles and similar storage/shipping containers

Examples

Experimental program
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Embodiment

[0042] The foregoing may be better understood with reference to the following embodiments, which are presented for illustrative purposes only and are not intended to limit the scope of the present invention.

[0043] The tailings from mineral processing operations were used in the study to evaluate the dust suppression effect under each treatment plan.

[0044] The processing used includes:

[0045] • Water-used in many mineral processing operations to control dust formation in retention dams and / or tailings ponds.

[0046] · Comparative Example #1: A commercially available dust control product containing a styrene-acrylate copolymer.

[0047] · Comparative Example #2: A commercially available dust control product containing a concentrated glycerin aqueous solution.

[0048] · Product A-a 50:50 mixture containing VAE copolymer and crude glycerin.

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PUM

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Abstract

The invention is directed towards methods and compositions for treating piles of particulate materials to inhibit and prevent the loss of valuable fuel or mineral dust from being released from storage piles or open containers. The method involves applying to the pile a binder coating containing VAE and crude glycerin. The binder coating cures and hardens slowly so it is able to remain flexible while the pile or payload is still settling, jostling, being bumped, and otherwise moving around. This coating is especially effective for coal piles and also for piles within and for being moved by open topped railroad cars. The coating's flexibility prevents the coating from becoming brittle and shattering. The coating has better performance than its ingredients do alone. The coating is effective both when it is flexible and after it cures. As a result the invention can both prevent unwanted dust pollution as well as save its users money by avoiding loss of blown away material.

Description

[0001] Cross references to related applications [0002] Not applicable [0003] Statement regarding federally funded research or development [0004] Not applicable Technical field [0005] The present invention relates to methods and compositions for containing particulate matter in open containers, including, but not limited to, hopper cars with open tops, trucks, buildings, and similar storage devices / containers. Background technique [0006] It is known to treat a large amount of particulate material (especially coal) with a binder (also called a skinning agent) to form a hard shell on the surface, thereby retaining valuable materials and preventing the diffusion of dust from the particles. Among other things, existing adhesives are described in U.S. Patent No. 5,441,566. These binders include latex, petroleum products and pine tar resin. Other binders include: phenolic resin (described in U.S. Patent No. 5,244,473) mixed with polyisocyanate in the presence of a catalyst, alkal...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D131/04C09J131/04B05D7/14
CPCC09K3/22
Inventor S·J·布鲁鲍K·L·奥布莱恩
Owner NALCO CO
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