DE286775C - - Google Patents

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Publication number

DE286775C

DE286775C DENDAT286775D DE286775DA DE286775C DE 286775 C DE286775 C DE 286775C DE NDAT286775 D DENDAT286775 D DE NDAT286775D DE 286775D A DE286775D A DE 286775DA DE 286775 C DE286775 C DE 286775C

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DE

Germany

Prior art keywords

developer

neutral

solution

ferrous sulfate

added

Prior art date

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• XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 11
• 235000003891 ferrous sulphate Nutrition 0.000 claims description 7
• 239000011790 ferrous sulphate Substances 0.000 claims description 7
• BAUYGSIQEAFULO-UHFFFAOYSA-L iron(2+) sulfate (anhydrous) Chemical compound [Fe+2].[O-]S([O-])(=O)=O BAUYGSIQEAFULO-UHFFFAOYSA-L 0.000 claims description 7
• 229910000359 iron(II) sulfate Inorganic materials 0.000 claims description 7
• 230000007935 neutral effect Effects 0.000 claims description 7
• 229910052742 iron Inorganic materials 0.000 claims description 5
• 150000003839 salts Chemical class 0.000 claims description 5
• IRXRGVFLQOSHOH-UHFFFAOYSA-L dipotassium;oxalate Chemical compound [K+].[K+].[O-]C(=O)C([O-])=O IRXRGVFLQOSHOH-UHFFFAOYSA-L 0.000 claims description 4
• 239000002253 acid Substances 0.000 claims description 3
• 230000008929 regeneration Effects 0.000 claims description 2
• 238000011069 regeneration method Methods 0.000 claims description 2
• UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims 2
• 238000004519 manufacturing process Methods 0.000 claims 1
• 238000000034 method Methods 0.000 claims 1
• KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 12
• FEWJPZIEWOKRBE-UHFFFAOYSA-N Tartaric acid Natural products [H+].[H+].[O-]C(=O)C(O)C(O)C([O-])=O FEWJPZIEWOKRBE-UHFFFAOYSA-N 0.000 description 4
• 238000007792 addition Methods 0.000 description 4
• 239000011975 tartaric acid Substances 0.000 description 4
• 235000002906 tartaric acid Nutrition 0.000 description 4
• AEMRFAOFKBGASW-UHFFFAOYSA-N Glycolic acid Chemical class OCC(O)=O AEMRFAOFKBGASW-UHFFFAOYSA-N 0.000 description 3
• 238000000354 decomposition reaction Methods 0.000 description 3
• XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
• FEWJPZIEWOKRBE-JCYAYHJZSA-N Dextrotartaric acid Chemical compound OC(=O)[C@H](O)[C@@H](O)C(O)=O FEWJPZIEWOKRBE-JCYAYHJZSA-N 0.000 description 2
• QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
• 150000007513 acids Chemical class 0.000 description 2
• 150000001447 alkali salts Chemical class 0.000 description 1
• 150000001860 citric acid derivatives Chemical class 0.000 description 1
• 230000000694 effects Effects 0.000 description 1
• 229940023144 sodium glycolate Drugs 0.000 description 1
• 150000003892 tartrate salts Chemical class 0.000 description 1
• JEJAMASKDTUEBZ-UHFFFAOYSA-N tris(1,1,3-tribromo-2,2-dimethylpropyl) phosphate Chemical compound BrCC(C)(C)C(Br)(Br)OP(=O)(OC(Br)(Br)C(C)(C)CBr)OC(Br)(Br)C(C)(C)CBr JEJAMASKDTUEBZ-UHFFFAOYSA-N 0.000 description 1