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Method of reducing the odour of sulphur-bound products
US9028604B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9028604-B2 |
| Application number | US-201013515922-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 5, 2010 |
| Priority date | Dec 15, 2009 |
| Publication date | May 12, 2015 |
| Grant date | May 12, 2015 |
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Abstract
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Method of reducing the odor of sulphur-bound products, in particular modified sulphur or sulphur concrete, comprising contacting the sulphur-bound products with a bleaching agent, like e.g. sodium hydrochloride or hydrogen peroxide. The resulting sulphur-bound products emit reduced levels of sulphur-containing gases such as H 2 S and SO 2 and have a reduced odor.
First claim
Opening claim text (preview).
What is claimed is: 1. A method of reducing the odour of sulphur concrete, wherein said method comprises contacting the sulphur concrete with a bleaching agent by wiping the sulphur concrete with a cloth soaked in an aqueous solution consisting essentially of said bleaching agent and water, and wherein the odour in the sulphur concrete is caused by H 2 S and the H 2 S level of the sulphur concrete after contact with said aqueous solution of bleaching agent is less than 2 ppm.…
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Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
- C04B28/36Primary
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
Chemistry & Metallurgy · mapped topic
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Frequently asked questions
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- What does patent US9028604B2 cover?
- Method of reducing the odor of sulphur-bound products, in particular modified sulphur or sulphur concrete, comprising contacting the sulphur-bound products with a bleaching agent, like e.g. sodium hydrochloride or hydrogen peroxide. The resulting sulphur-bound products emit reduced levels of sulphur-containing gases such as H 2 S and SO 2 and have a reduced odor.
- Who is the assignee on this patent?
- Dreisziger Gyula Imre, Hamelink Cornelis Pieter, Verbist Guy Lode Magda Maria, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification C04B28/36. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue May 12 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).