Methods for treating coke and coal and products produced thereby
US5578239A · kind A · utility
12Cited by
15References
35Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 10, 1994 |
| Grant date | Nov 26, 1996 |
| Priority date | — |
| Expiry date | Mar 10, 2014 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10L9/10
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method and composition for control of in-transit and residual dust from coal or coke is provided. The method involves spraying the coal or coke with fluid, preferably water, containing an additive comprised of approximately 90-99% by weight of lignosulfonate and 1-10% by weight of a polyacrylate, a polyvinylalcohol, or a polyacrylamide. Sufficient fluid should be used to coat the coal or coke. The amount of additive necessary to prevent dusting will vary according to the conditions to which the coke or coal will be subjected.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.