| Patent Number |
Title Of Patent |
Date Issued |
| 5255562 |
Measurement of interfacial strength of a composite material |
October 26, 1993 |
| Interfacial strength of a composite material between its fibers and matrix is measured by observing a sample material through a microscope, measuring the diameter of selected one of the fibers by moving indicators in the field of vision of the microscope, applying pressure on the selecte |
| 5037796 |
Process for producing hydrated and cured product of lime-gypsum-coal ash mixture |
August 6, 1991 |
| A process for producing a hydrated and cured product of a lime-gypsum-coal ash mixture capable of constituting a high-performance desulfurizing agent, with a high yield and in a simplified manner is provided, which process comprises adding water to a mixture of lime, used desulfurizing |
| 4687649 |
Flue gas desulfurization process |
August 18, 1987 |
| A flue gas desulfurization process by which gypsum can be recovered; the amount of water used therein is small, the effluent is treated in a closed system, the equipment used is minimized, and no scaling occurs; and an apparatus therefor are provided, the process including the following |
| 4487784 |
Limestone-gypsum flue gas desulfurization process |
December 11, 1984 |
| A flue gas desulfurization process capable of producing a high purity gypsum and also making equipment employed as minimum as possible is provided, which process comprises the steps of cooling and dedusting flue gas containing SO.sub.x ; contacting the cooled gas with a slurry contai |
| 4328195 |
Process for desulfurizing combustion exhaust gases |
May 4, 1982 |
| An improved process for desulfurizing combustion exhaust gases of mainly coal containing sulfur oxides, HF and dust containing Al is provided, which process consists of four steps; a first step of contacting the gases with calcium carbonate or hydroxide in the form of slurry to convert t |
| 4154673 |
Method of treatment of waste water containing sulfur compounds |
May 15, 1979 |
| Waste water issued from a wet type desulfurization apparatus and containing thionic acid ions is introduced into ion-exchange towers filled with weak-basic anion-exchange which has to effect anion exchange therein. The weak-basic anion-exchange resin which has adsorbed the thionic acid i |
