Number | Name | Date | Kind |
---|---|---|---|
3350169 | Rinchkoff | Oct 1967 | |
3525586 | Drechsel et al. | May 1970 | |
4009250 | Novozhilov | Feb 1977 | |
4029751 | Dorr et al. | Jun 1977 | |
4136153 | Robertson et al. | Jan 1979 | |
4348373 | Schoubye | Sep 1982 | |
4368183 | Dorr et al. | Jan 1983 | |
4478809 | McAlister et al. | Oct 1984 | |
4576813 | McAlister et al. | Mar 1986 | |
4670242 | McAlister et al. | Jun 1987 | |
4842835 | Dorr et al. | Jun 1989 |
Number | Date | Country |
---|---|---|
471653 | Sep 1937 | GBX |
Entry |
---|
P. Shoubye, "Sulphuric acid production from lean H2S-containing gases"; Jul./Aug. 1978; 38-42 pp. Sulphur No. 137. |
Unknown; "HRS fronts Monsanto's latest push in sulphuric acid technology"; Mar./Apr. 1987, Sulphur. |
D. R. McAlister et al.; "Economically Recovering Sulfuric Acid Heat"; Jul. 1986; 34-38 pp; Chemical Engineering Progress. |