PL6263B1 - Method for dissolving chromium ores in acidic solutions. - Google Patents
Method for dissolving chromium ores in acidic solutions. Download PDFInfo
- Publication number
- PL6263B1 PL6263B1 PL6263A PL626326A PL6263B1 PL 6263 B1 PL6263 B1 PL 6263B1 PL 6263 A PL6263 A PL 6263A PL 626326 A PL626326 A PL 626326A PL 6263 B1 PL6263 B1 PL 6263B1
- Authority
- PL
- Poland
- Prior art keywords
- acidic solutions
- chromium
- boiling
- chromium ores
- dissolving chromium
- Prior art date
Links
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 title claims description 16
- 229910052804 chromium Inorganic materials 0.000 title claims description 12
- 239000011651 chromium Substances 0.000 title claims description 12
- 239000003929 acidic solution Substances 0.000 title claims description 4
- 238000000034 method Methods 0.000 title claims description 3
- 239000002253 acid Substances 0.000 claims description 7
- 238000009835 boiling Methods 0.000 claims description 7
- 150000007513 acids Chemical class 0.000 claims description 2
- 239000004744 fabric Substances 0.000 claims 1
- 239000000126 substance Substances 0.000 claims 1
- 239000000243 solution Substances 0.000 description 7
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 2
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 229910000604 Ferrochrome Inorganic materials 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 239000012670 alkaline solution Substances 0.000 description 1
- 229940037003 alum Drugs 0.000 description 1
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 1
- 229910052601 baryte Inorganic materials 0.000 description 1
- 239000010428 baryte Substances 0.000 description 1
- 229910021538 borax Inorganic materials 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 239000000920 calcium hydroxide Substances 0.000 description 1
- 235000011116 calcium hydroxide Nutrition 0.000 description 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 1
- LBVNUQQORDPZCR-UHFFFAOYSA-N calcium;sulfane Chemical compound S.[Ca] LBVNUQQORDPZCR-UHFFFAOYSA-N 0.000 description 1
- KRVSOGSZCMJSLX-UHFFFAOYSA-L chromic acid Substances O[Cr](O)(=O)=O KRVSOGSZCMJSLX-UHFFFAOYSA-L 0.000 description 1
- AWJWCTOOIBYHON-UHFFFAOYSA-N furo[3,4-b]pyrazine-5,7-dione Chemical compound C1=CN=C2C(=O)OC(=O)C2=N1 AWJWCTOOIBYHON-UHFFFAOYSA-N 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000004571 lime Substances 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 229910052939 potassium sulfate Inorganic materials 0.000 description 1
- 239000001120 potassium sulphate Substances 0.000 description 1
- 235000011151 potassium sulphates Nutrition 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 239000004328 sodium tetraborate Substances 0.000 description 1
- 235000010339 sodium tetraborate Nutrition 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Description
Dotychczasowe sposoby rozpuszczania rud chromowych w roztworach kwasnych, majace na celu otrzymywanie chromu w postaci jego soli lub w postaci kwa¬ su chromowego, nie dawaly wyników zadawalajacych, gdyz tylko nieznacz¬ na ilosc zawartego w rudzie chromu prze¬ chodzila do roztworu. Rozpuszczalnosc chromu próbowano równiez zwiekszyc przez kilkakrotna obróbke rud chromowych kwa¬ sami. Jak wykazaly próby, dokonane na¬ wet po 20-godzinnem gotowaniu zelaziaku chromowego w 80%-ym kwasie siarkowym, do roztworu przechodzi tylko okolo 25% chromu; po przemyciu i nastepnem goto¬ waniu dalszem rudy przechodzi jeszcze 8%, a po dalszem przemyciu i gotowaniu juz zaledwie jedna dziesiata procentu.W celu zwiekszenia rozpuszczalnosci zawartego w rudach chromu proponowano dodawac srodków utleniajacych lub tez ob¬ robic rude uprzednio srodkami redukuj ace- mi. Srodki te okazaly sie jednak nie wy¬ starczajace i dotychczas znaczne ilosci alu¬ nu chromowego otrzymuje sie droga okól¬ na przez ferrochrom, który w przeciwien¬ stwie do rudy rozpuszcza sie w roztworze kwasnym latwiej, oddajac do roztworu o- kolo % zawartego w nim chromu.Stosownie do wynalazku niniejszego, rude chromowa obrabia sie cialami zasado- wemi badz przed rozpuszczaniem jej w roztworze kwasnym, badz tez dopiero po wygotowaniu jej w kwasie. Jako ciala zasadowe, nadajace .sie do obróbki po¬ wyzszej, mozna przytoczyc wapno gaszo-ne, wode wapienna, wode barytowa, krede, mieszanine siarczanu potasowe¬ go lub sodowego z wapnem z siarcz¬ kiem sodowym, wodoro-siarczkiem wap¬ niowym, boraksem, amon jakiem; roz¬ twory wzglednie mieszaniny, odszczepiaja- ce amon jak, magnezje, tlenek cynkowy, za¬ sadowe roztwory chlorku wapniowego' i zwiazki podobne.Przyklad. Pozostalosc, otrzymana po wygotowaniu rudy chromowej w kwasie, przemywa sie i gotuje w roztworze sody w obecnosci powietrza, poczem odsacza, przemywa i gotuje ponownie w kwasie. W ten sposób 0,9 zawartego w pozostalosci chromu przechodzi do roztworu. Zamiast pozostalosci, otrzymanej po wygotowaniu rudy chromowej w kwasie, mozna poddac obróbce powyzszej rude surowa. Równiez zamiast sody mozna stosowac inne, przyto¬ czone powyzej ciala zasadowe. PL PLThe hitherto methods of dissolving chromium ores in acidic solutions, aimed at obtaining chromium in the form of its salt or in the form of chromic acid, did not give satisfactory results, because only a small amount of the chromium contained in the ore went into solution. Attempts have also been made to increase the solubility of chromium by treating the chromium ores with acids several times. As has been shown by tests carried out even after 20 hours of boiling the chrome iron in 80% sulfuric acid, only about 25% of the chromium goes into solution; after washing and further boiling, the ore passes by 8%, and after further washing and boiling, it is only one tenth of a percent. . However, these measures turned out to be insufficient, and so far significant amounts of chromium alum are obtained by circular route through ferrochrome, which, unlike ore, dissolves more easily in an acidic solution, giving up about% of its content to the solution. Chromium. According to the present invention, the chrome ore is treated with alkaline bodies either before dissolving it in an acid solution or only after boiling it in acid. Slaked lime, lime water, barite water, chalk, a mixture of potassium or sodium sulphate with lime with sodium sulphide, calcium hydrogen sulphide, can be cited as basic bodies suitable for later treatment. borax, ammonium; solutions, or mixtures, which split ammonium, such as magnesia, zinc oxide, alkaline solutions of calcium chloride, and the like. The residue, obtained after boiling the chrome ore in acid, is washed and boiled in a soda solution in the presence of air, then drained, washed and boiled again in acid. Thus 0.9 of the residual chromium goes into solution. Instead of the residue obtained after boiling the chrome ore in acid, the above raw ore can be treated. Also, other basic bodies attached above can be used instead of baking soda. PL PL
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| PL6263B1 true PL6263B1 (en) | 1926-12-31 |
Family
ID=
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Guerrero-Flores et al. | Simultaneous removal of calcium and sulfate ions from flotation water of complex sulfides | |
| CN107740087B (en) | A kind of metal manganese chromium-free passivator and its preparation method and application | |
| PL6263B1 (en) | Method for dissolving chromium ores in acidic solutions. | |
| CN1321910C (en) | Method for treating copper-containing waste acid water | |
| GB376654A (en) | Process for producing alkali metal bisulphite or alkali metal sulphite solutions from waste liquors obtained by digesting pulp with alkali-sulphur compounds | |
| SU63111A1 (en) | The method of extraction of antimony from spent antimony-sulfur electrolyte | |
| GB165759A (en) | Improved process for the manufacture of phosphoric acid | |
| PL21876B1 (en) | A method of producing pure chromium compounds. | |
| SU55843A1 (en) | The method of obtaining artificial stones from chromate slime | |
| SU4556A1 (en) | Method of tanning leather | |
| GB246834A (en) | Improvements in the production of phenol-aldehyde resins | |
| GB251267A (en) | Manufacture of basic chromium salts | |
| PL8838B1 (en) | The method of obtaining the fiber. | |
| SU63978A1 (en) | The method of obtaining thermal insulation material | |
| GB603779A (en) | Improved process for recovering magnesium salts | |
| GB471373A (en) | Improvements in refractory bricks | |
| GB214483A (en) | Process for the production of titanic oxide from titaniferous iron ores | |
| PL1181B1 (en) | A method of making a tannin surrogate. | |
| SU61248A1 (en) | The way to clarify the resin | |
| CN105347635A (en) | Method for extracting chromium from chromium-containing sludge in leather industry and recycling chromium | |
| GB453318A (en) | Improvements in or relating to the manufacture of zinc oxide | |
| GB619134A (en) | Process for obtaining chromium salts and chromic acid | |
| PL30716B1 (en) | Method of dyeing the surface of objects made of cement | |
| GB436494A (en) | Improvements in the production of bituminous emulsions | |
| PL17589B1 (en) | The method of producing dithionite while obtaining pure zinc oxide. |