| Patents for C01B 7 - Halogens; Halogen acids (5,959) |
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| 10/06/1988 | DE3808633A1 Method for producing dissolved salts and acids by ion exchanger resins |
| 10/05/1988 | CN88101489A Production process of chlorine |
| 09/28/1988 | EP0283965A2 Process and composition for drying of gaseous hydrogen halides |
| 09/27/1988 | US4774070 Catalytic oxidation with chromic oxide |
| 09/27/1988 | US4774064 Conversion of calcium compounds into solid and gaseous compounds |
| 09/21/1988 | EP0283198A2 Production process of chlorine |
| 09/06/1988 | US4769180 Adding mg compound to waste liquor to form precipitate; neutralizing precipitate; distilling |
| 08/31/1988 | EP0280439A1 Manufacture of high purity low arsenic anhydrous hydrogen fluoride |
| 08/25/1988 | WO1988006139A1 Manufacture of high purity low arsenic anhydrous hydrogen fluoride |
| 08/16/1988 | US4763585 Method for the combustion of spent potlinings from the manufacture of aluminum |
| 08/03/1988 | EP0276542A2 Distillation method and apparatus |
| 07/26/1988 | US4760207 Oxychlorination; minimizing corrosion |
| 07/19/1988 | CA1239273A1 Preparation of aluminium fluoride from scrap aluminium cell potlinings |
| 07/12/1988 | US4756899 Manufacture of high purity low arsenic anhydrous hydrogen fluoride |
| 07/06/1988 | CN87106432A Recovery of ethylene, chlorine and hcl from vented waste gas from direct chlorination reactor |
| 07/05/1988 | CA1238765A1 Method of recovering hydrochloric acid from a product comprised of sugars and concentrated hydrochloric acid |
| 06/29/1988 | EP0272984A2 Conversion of calcium compounds into solid and gaseous compounds |
| 06/29/1988 | EP0272332A1 Process for producing chlorine |
| 05/31/1988 | US4748015 Method of complex production of sodium bifluoride, active sodium fluoride, hydrogen fluoride and potassium nitrate |
| 05/31/1988 | US4748013 Adsorbent for recovery of bromine and bromine-recovering process using same |
| 05/04/1988 | CN86104831A Hydrogen chlorine fuel cell producing hydrochloric acid and recovering electric energy |
| 04/05/1988 | US4735784 Method of treating fluoride contaminated wastes |
| 03/29/1988 | US4734272 Removing fluorine, use sulfur values to make sulfuric acid |
| 03/23/1988 | EP0260650A2 Process for minimizing corrosion due to moisture in vent gases from a high temperature direct chlorination reactor for converting ethylene |
| 03/23/1988 | CN87104744A Production process of chlorine |
| 03/09/1988 | CN85107208B Recovery method of trace iodine in phosphorus ore |
| 03/01/1988 | CA1233314A1 Formation of dense chlorine hydrate |
| 02/25/1988 | WO1988001253A1 Process for producing nitrogen dioxide rich gas or pure oxygen |
| 02/24/1988 | EP0256840A2 Process for separation of acids and corresponding acid metal salts |
| 02/18/1988 | DE3627429A1 Verfahren zur herstellung von stickstoffdioxid-reichgas Process for the preparation of nitrogen dioxide-rich gas |
| 02/16/1988 | US4725425 Continuous vacuum process for recovering bromine |
| 02/03/1988 | CN87104895A Process for the recovery of ammonia and fluoride solutions |
| 01/27/1988 | EP0254063A2 Process for the recovery of ammonia and fluoride values from ammonium fluoride solutions |
| 01/20/1988 | EP0253142A1 Iron oxide catalyst and its use in the production of chlorine by oxygenation of iron chloride |
| 01/20/1988 | EP0253137A2 Process for the oxydation of hydrogen sulfide contained in Phosphoric acid |
| 01/14/1988 | WO1988000171A1 Process for producing chlorine |
| 01/13/1988 | EP0252099A1 Magnesium cement |
| 01/12/1988 | US4719096 Continuous two-stage vacuum process for recovering bromine |
| 01/07/1988 | EP0251731A2 Production of chlorine |
| 12/30/1987 | CN86104013A Recovery of hydrogen fluoride |
| 12/22/1987 | US4714604 Distillation; silica reacting with hydrogen fluoride |
| 12/15/1987 | US4713231 Adding potassium hydroxide, heating, concentrating, adding solvent, distilling |
| 12/08/1987 | US4711680 Displacement reaction of transition metal fluoride with lewis acid |
| 11/10/1987 | US4705221 Quantitative continuous feeding method for iodine |
| 10/22/1987 | DE3611886A1 Process for removing hydrogen chloride and chlorine from combustion gases with recovery of hydrochloric acid |
| 10/06/1987 | CA1227619A1 Process for production of chlorine dioxide |
| 09/30/1987 | CN87101999A Production process of chlorine |
| 09/29/1987 | CA1227495A1 Anhydrous phase separation for recovering hydrogen fluoride from a fluorination reaction |
| 09/22/1987 | US4695357 Removal of unsaturated hydrocarbons in anhydrous hydrogen halide by infrared laser radiation |
| 09/16/1987 | EP0237405A1 Process and generator for producing atomic iodine in the fundamental state, and applicational chemical iodine laser |
| 09/08/1987 | US4692228 Cathodic reduction |
| 09/02/1987 | CN87100396A Catalyst recovery process |
| 08/26/1987 | EP0233773A1 Production of chlorine |
| 08/19/1987 | EP0232766A2 Process for eliminating heavy metals from mineral acids |
| 08/19/1987 | EP0232658A1 Process and device for exothermic reaction of gases |
| 08/19/1987 | EP0232615A2 Liquid phase adsorption and oxidation of ferric chloride using a eutectic salt complex |
| 08/05/1987 | EP0230906A2 Process for the recovery of iodine and noble metal catalyst |
| 07/16/1987 | WO1987004145A1 Magnesium cement |
| 07/07/1987 | US4678656 Formation of dense chlorine hydrate |
| 07/07/1987 | US4678654 Mixture of hydrochloric and sulfuric acids free of sulfur dioxide |
| 07/07/1987 | US4678482 Countercurrent scrubbing with concentrated hydrochloric and sulfuric acids |
| 06/25/1987 | DE3544978A1 Method for the pyrohydrolysis of inorganic substances |
| 05/26/1987 | US4668833 Hydrogenation of acetylene contained in hydrogen chlorine gas, and application thereof |
| 05/26/1987 | US4668497 Process for purifying hydrogen fluoride |
| 05/26/1987 | US4668490 Process and a device for flue gas desulphurization |
| 04/22/1987 | EP0218998A1 Process for the manufacture of iodine |
| 04/07/1987 | US4655929 Recycling; recovering hydrogen fluoride and ammonium hydroxide |
| 04/01/1987 | EP0216292A1 Process for the treatment of exhaust gases containing hydrogen chloride |
| 03/17/1987 | US4650649 Catalyst recovery process |
| 02/24/1987 | US4645658 Method of recovering hydrochloric acid from a product comprised of sugars and concentrated hydrochloric acid |
| 02/04/1987 | EP0210769A1 Removal of arsenic from acids |
| 02/04/1987 | EP0210480A2 Process for purifying hydrogen chloride gas |
| 02/03/1987 | US4640831 Salt formation and dissociation |
| 01/24/1987 | CN85101209A Alumina treated by silicon and/or fluorine |
| 01/13/1987 | US4636372 Fertilizers |
| 12/16/1986 | US4629610 Hydrogen fluoride recovery process |
| 12/10/1986 | CN85104494A Process for the manufacture of hydrofluoric acid by reaction of sulphuric acid with fluorospar in a rotating oven |
| 12/02/1986 | CA1214622A1 Removal of arsenic from hydrogen fluoride |
| 11/25/1986 | US4624843 Recovery of chlorine |
| 11/25/1986 | CA1214382A1 Method for regenerating pickling acids |
| 11/20/1986 | EP0201881A2 Hydrogen fluoride recovery process |
| 11/18/1986 | CA1214021A1 Process for the production of aqueous hydrochloric acid having a concentration of at least 35.5 percent by weight |
| 10/22/1986 | CN86102713A Adsorbent for recovery of bromine and bromine-recovering process using the same |
| 10/14/1986 | CA1212524A1 Method for conducting a chemical process in a packed multi-step tubular reactor |
| 10/07/1986 | US4615874 Process for producing chlorine from ferric chloride |
| 09/03/1986 | CN85108709A New decomposition method of ammonium chloride |
| 08/26/1986 | US4608238 Sulfuric acid absorption of fluorine in effluent gases |
| 07/08/1986 | US4599156 Electrodialysis process for preparing hydrogen fluoride |
| 07/02/1986 | CA1206723A Selective conversion of chlorinated alkanes to hydrogen chloride and carbon dioxide |
| 07/01/1986 | US4597947 Mass transfer and material separation microchannel plate apparatus |
| 07/01/1986 | US4597873 Separation of chemicals, blood filtration, cross-flowing fluids |
| 06/17/1986 | US4595579 Process for initiating a reaction for the manufacture of synthetic hydrochloric acid |
| 06/11/1986 | EP0184413A2 Process for the production of chlorine |
| 06/10/1986 | US4594231 Method for removal of poisonous gases |
| 06/10/1986 | CN85109387A Production process of chlorine |
| 05/10/1986 | CN85107208A Recovery method of frace iodine in phosphorus ore |
| 04/30/1986 | EP0179163A1 Process for preparing bromine by catalytic oxidation of hydrogen bromide |
| 04/29/1986 | US4585709 Method and apparatus for regulating the hydrate formation temperature in a metal-halogen battery |
| 04/22/1986 | US4584123 Process for upgrading hydrogen chloride containing chlorine, iron-III-chloride, ethylene and/or acetylene |
| 03/18/1986 | US4576636 Process for beneficiating oxidic ores |