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Class Information
Number: 423/504
Name: Chemistry of inorganic compounds > Halogen or compound thereof > Elemental halogen > From mixture containing alkali metal or alkaline earth metal
Description: Processes wherein the elemental halogen is derived from an initial mixture which contains lithium, sodium, potassium, rubidium, cesium, magnesium, calcium, strontium or barium.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7572428 |
Process for producing fluorine gas |
Aug. 11, 2009 |
| 7300625 |
Chlorine gas generating candle |
Nov. 27, 2007 |
| 6994836 |
Method of recovering chlorine gas from calcium chloride |
Feb. 7, 2006 |
| 6955801 |
High-purity fluorine gas, production and use thereof, and method for analyzing trace impurities in high-purity fluorine gas |
Oct. 18, 2005 |
| 6770255 |
Process for chlorine recovery |
Aug. 3, 2004 |
| 5520901 |
Method for the recovery of iodine from an environment |
May. 28, 1996 |
| 5458781 |
Bromide separation and concentration using semipermeable membranes |
Oct. 17, 1995 |
| 5158683 |
Bromide separation and concentration using semipermeable membranes |
Oct. 27, 1992 |
| 5154911 |
Efficient method for the chemical production of chlorine and the separation of hydrogen chloride from complex mixtures |
Oct. 13, 1992 |
| 5084264 |
Process for oxidation of hydrogen halides to elemental halogens |
Jan. 28, 1992 |
| 5069884 |
Process for the purification of an aqueous alkali metal chloride solution from ammonium and iodine compounds |
Dec. 3, 1991 |
| 5021231 |
Production of chlorine and sodium sulphate |
Jun. 4, 1991 |
| 4978518 |
Continuous vacuum process for recovering vromine |
Dec. 18, 1990 |
| 4725425 |
Continuous vacuum process for recovering bromine |
Feb. 16, 1988 |
| 4719096 |
Continuous two-stage vacuum process for recovering bromine |
Jan. 12, 1988 |
| 4711680 |
Pure fluorine gas generator |
Dec. 8, 1987 |
| 4434241 |
Catalyst recovery process from tar from carbonylation reactions |
Feb. 28, 1984 |
| 4404179 |
Destruction of hypochlorite |
Sep. 13, 1983 |
| 4363789 |
Alumina production via aluminum chloride oxidation |
Dec. 14, 1982 |
| 4355008 |
Chlorination process |
Oct. 19, 1982 |
| 4331645 |
Alumina from alkali metal-aluminum chloride complexes |
May. 25, 1982 |
| 4284617 |
Solid compositions for generation fluorine and gaseous fluorine compounds |
Aug. 18, 1981 |
| 4138559 |
Recovery of chlorine and cyanuric acid values from polychloroisocyanuric acids and salts thereof |
Feb. 6, 1979 |
| 4125595 |
Process for the production of very pure bromine |
Nov. 14, 1978 |
| 4110423 |
Production of chlorine and ammonia |
Aug. 29, 1978 |
| 4087623 |
Catalyst recovery process |
May. 2, 1978 |
| 4086328 |
Production of chlorine dioxide from buffered reaction media |
Apr. 25, 1978 |
| 4073875 |
Oxidation of magnesium chloride |
Feb. 14, 1978 |
| 4031194 |
Continuous process for preparing bromine |
Jun. 21, 1977 |
| 3996005 |
Detection and measurement of NO.sub.2 and O.sub.3 |
Dec. 7, 1976 |
| 3989808 |
Method of preparing pure fluorine gas |
Nov. 2, 1976 |
| 3975506 |
Production of chlorine dioxide |
Aug. 17, 1976 |
| 3944647 |
Recovering chlorine from the chlorination of titaniferous material |
Mar. 16, 1976 |
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