Patents for C23G 1 - Cleaning or pickling metallic material with solutions or molten salts (8,361)
07/1984
07/11/1984EP0113060A1 Method of eliminating manganese deposits from water works installations
07/10/1984US4459216 Chemical dissolving solution for metals
07/10/1984US4459158 Thioalkanoic acid derivatives
07/03/1984US4457322 Alkaline cleaning compositions non-corrosive toward aluminum surfaces
07/03/1984CA1170387A1 Cleaning and priming compositions
06/1984
06/20/1984EP0111285A1 Cleaning process
06/20/1984EP0111284A1 Cleaning process
06/19/1984US4455251 For spraying
06/19/1984CA1169340A1 Method of and solvent for removing inorganic fluoride deposits
06/07/1984WO1984002125A1 Method for eliminating manganiferous scales from watersupply pla nts, treatment solution and utilization thereof
06/05/1984US4452643 Method of removing copper and copper oxide from a ferrous metal surface
05/1984
05/29/1984US4451296 Rust removal process
05/22/1984US4450138 Processes for inhibiting corrosion using compounds containing sulfur and amino groups
05/22/1984US4450137 Processes for inhibiting corrosion using compounds containing sulfur and amino groups
05/22/1984US4450102 Sulfur based metal cleaners and corrosion inhibitors
05/16/1984EP0108345A2 Agent for removing liquids sticking to metallic surfaces
05/15/1984US4448710 Corrosion inhibitors including a 3-dialkylamino-3-phenylethenylprop-1-yne
05/02/1984EP0107413A1 Inhibitor-containing concentrates, inhibited acidic aqueous solutions, and metal-descaling processes
05/01/1984US4446056 Disproportionation
05/01/1984US4445984 Parasitic electrodialysis recovery of dissolved chemicals from dilute solutions directly into a plating bath
05/01/1984US4445940 Process to remove corrosion deposits using aqueous-base ferromagnetic fluids
04/1984
04/26/1984WO1984001580A2 Methods of using strong acids modified with acid solutions
04/24/1984CA1166131A1 Aqueous acid composition and method of use
04/17/1984US4443268 Ferric chelates of alkylenepolyaminepolycarboxylic acids, hydrogen peroxide
04/17/1984CA1165533A1 Method of preparing high purity ferrous sulfate hydrate crystals from hydrochloric acid waste pickle liquor
04/10/1984US4441930 Melt of alkali metal hydroxide, metal fluoride and boron compound
04/10/1984CA1165366A1 Elongate flexible heating package with removable elongate electrical heating element
03/1984
03/29/1984WO1984001168A1 Solder stripping solution
03/28/1984EP0104012A2 Composition and method for simultaneously removing iron and copper scales from ferrous metal surfaces
03/27/1984US4439241 Cleaning process for internal passages of superalloy airfoils
03/27/1984CA1164404A1 Galvanic post-treatment of etched aluminum capacitor foil
03/20/1984US4438013 Of metals in aqueous brines or acids
03/13/1984US4436643 Regeneration of aqueous degreasing and cleaning solutions
03/06/1984US4435304 Sulfur based metal cleaners
03/06/1984US4435223 Sulfuric and phosphoric acids and a surfactant
02/1984
02/28/1984US4434002 Process for production of high-purity metallic iron
02/22/1984EP0101230A2 Ferrous sulfide dissolution in acid with lowered gas formation
02/22/1984EP0101126A2 Process for treating waste pickling pastes
02/21/1984US4432846 Cleaning and treatment of etched cathode aluminum capacitor foil
02/21/1984US4432808 Treatment of stainless steel apparatus used in the manufacture, transport or storage of nitrogen oxides
02/08/1984EP0100171A2 A cleaning and treatment process and apparatus
02/07/1984US4430129 Method of cleaning hollow conductors of cooled electrical machines
02/07/1984US4430128 Aqueous acid composition and method of use
01/1984
01/17/1984CA1160547A1 Method of stripping paint in a molten salt bath
01/10/1984CA1160034A1 Anionic/amphoteric corrosion inhibition
01/03/1984US4424079 Rust removal process
12/1983
12/27/1983US4422906 Activation in acid solution and cathodic electrolysis prior to electroplating
12/20/1983US4421667 Sulfur based metal cleaners
12/20/1983CA1158965A1 Method and composition for removing sulfide- containing scale from metal surfaces
12/06/1983US4419266 Corrosion inhibitors containing 3-dialkyl-3-(1-ethylpentyl)-prop-1-yne
12/06/1983US4419259 Phosphoris acid, nonionic surfactant
11/1983
11/15/1983CA1157028A1 Selected poly(oxyalkylated) pyrazoles and their use as corrosion inhibitors
11/09/1983EP0093435A1 Electrolytic purification and reconcentration of wash and rinse caustic solutions recovered from the regeneration of ion exchange resins
11/09/1983EP0093264A2 Method and apparatus for cleaning metallic fines
11/08/1983CA1156422A1 Process for separating mold sand residues from castings
10/1983
10/19/1983EP0091627A2 Process for cleaning, degreasing and activating metallic surfaces
10/13/1983WO1983003429A1 Rust removal process
10/12/1983EP0091301A1 Rust removal process
10/12/1983EP0091194A1 Thixotropic rust removal coating and process
10/11/1983US4409119 Process for regenerating cleaning solutions
10/05/1983EP0090512A1 Process for treatment of oxide films prior to chemical cleaning
10/05/1983EP0090119A2 Selectively stripping iron ions from an organic solvent
10/04/1983CA1154657A1 Cleaning boiler tubes of digesting heat exchangers
09/1983
09/28/1983EP0089522A1 Breaking up of oil-in-water emulsions
09/20/1983CA1153979A1 Applying nickel and chromium coatings to metal shelving, followed by epoxy resin
09/06/1983US4402759 Process for inhibiting the corrosion of a metal installation in contact with an acid bath
09/06/1983US4402757 Method of vibrating coiled wires
08/1983
08/31/1983EP0087166A1 Process for the electrolytic regeneration of spent sulfuric acid pickling solutions
08/30/1983US4401531 Process for the production of electrolytic zinc or high purity zinc salts from secondary zinc raw-materials
08/30/1983CA1152867A1 Water based cleaning system
08/24/1983EP0086245A1 Aqueous acid metal cleaning composition and method of use
08/23/1983US4400312 Sulfur based metal cleaners
08/23/1983US4400289 Composition and process for pickling and removing rust from metal
08/16/1983CA1151983A1 Method and composition for removing sulfide- containing scale from metal surfaces
08/10/1983EP0085666A2 Method of processing sulfuric acid having a content of metal sulfates
08/09/1983US4397753 Printed circuits or tabs
08/09/1983US4397721 Pickling of aluminum
08/09/1983CA1151497A1 Method of treating metal surfaces prior to phosphatization
08/02/1983CA1151049A1 One package replenisher for aluminum cleaner
07/1983
07/26/1983US4395365 Metal cleaning composition containing a fatty acid succrose ester and other detergent components
07/19/1983US4394232 Pickling of aluminum
07/12/1983US4393026 Corrosion inhibitors
06/1983
06/28/1983US4390465 Containing alkaline builder, conditioner, and surfactants
06/21/1983US4389254 Oxidation, formic acid, salt formation
06/14/1983US4388206 Corrosion inhibitors
06/08/1983EP0080996A2 Process for recovering metals from acid solutions of their salts
06/08/1983EP0080794A1 Corrosion inhibitors containing N,N,1-trisubstituted prop-2-ynyl amines
06/07/1983US4387074 Polyols of tetrahydropyrimidines as corrosion inhibitors
06/07/1983US4387042 3-dialkylamino-3-(substituted phenyl)prop-1-yne
06/07/1983US4387041 3-dialkylamino-3-(substituted phenyl)-prop-1-yne
06/01/1983EP0079987A1 Method and apparatus for recycling washing liquid and heat contained in washings discharged from metal surfacing process
05/1983
05/31/1983CA1147246A1 Process for cleaning copper-containing metal surfaces
05/24/1983US4384900 Method of treating metal surfaces prior to phosphatization
05/18/1983EP0078918A1 High alkaline pickling or cleaning agents as well as there use
05/10/1983US4382916 Method of preparing hydrochloric acid and high purity ferrous sulfate hydrate crystals from hydrochloric acid waste pickle liquor
05/10/1983US4382825 Alkaline cleaner for ferrous-based metal surfaces
05/03/1983US4381950 Reduction of hydrogen sulfide gas evolution by adding maleic acid, anhydride or ammonium salt
04/1983
04/26/1983US4381249 Rust removing and metal surface protecting composition
04/20/1983EP0077041A1 Method for the replenishment of cleaning solutions
04/19/1983CA1144766A1 Method and apparatus for conditioning the surface of metal billets
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