PT98318A - Processo para a separacao de sulfato de um componente cromio contaminante - Google Patents
Processo para a separacao de sulfato de um componente cromio contaminanteInfo
- Publication number
- PT98318A PT98318A PT98318A PT9831891A PT98318A PT 98318 A PT98318 A PT 98318A PT 98318 A PT98318 A PT 98318A PT 9831891 A PT9831891 A PT 9831891A PT 98318 A PT98318 A PT 98318A
- Authority
- PT
- Portugal
- Prior art keywords
- contaminant component
- chromium
- sulphate separation
- sulphate
- separation
- Prior art date
Links
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 title 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 title 1
- 229910052804 chromium Inorganic materials 0.000 title 1
- 239000011651 chromium Substances 0.000 title 1
- 239000000356 contaminant Substances 0.000 title 1
- 238000000034 method Methods 0.000 title 1
- 238000000926 separation method Methods 0.000 title 1
- 229910021653 sulphate ion Inorganic materials 0.000 title 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
- C25B1/01—Products
- C25B1/24—Halogens or compounds thereof
- C25B1/26—Chlorine; Compounds thereof
- C25B1/265—Chlorates
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B11/00—Oxides or oxyacids of halogens; Salts thereof
- C01B11/12—Chloric acid
- C01B11/14—Chlorates
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01D—COMPOUNDS OF ALKALI METALS, i.e. LITHIUM, SODIUM, POTASSIUM, RUBIDIUM, CAESIUM, OR FRANCIUM
- C01D3/00—Halides of sodium, potassium or alkali metals in general
- C01D3/14—Purification
- C01D3/16—Purification by precipitation or adsorption
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Metallurgy (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
- Removal Of Specific Substances (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US07/552,620 US5093089A (en) | 1990-07-16 | 1990-07-16 | Process for the separation of sulphate |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| PT98318A true PT98318A (pt) | 1992-05-29 |
| PT98318B PT98318B (pt) | 1999-01-29 |
Family
ID=24206091
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PT98318A PT98318B (pt) | 1990-07-16 | 1991-07-15 | Processo para a separacao de sulfato de um componente cromio contaminante |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US5093089A (pt) |
| JP (1) | JPH0624739A (pt) |
| CN (1) | CN1050866C (pt) |
| AU (1) | AU630031B2 (pt) |
| CA (1) | CA2041914C (pt) |
| ES (1) | ES2033580B1 (pt) |
| FI (1) | FI101530B (pt) |
| NZ (1) | NZ238887A (pt) |
| PT (1) | PT98318B (pt) |
| SE (1) | SE506783C2 (pt) |
| ZA (1) | ZA915393B (pt) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2100948C (en) * | 1992-04-22 | 1995-01-24 | John Robert Jackson | Process for chromium removal using an inorganic sulfur compound |
| SE500107C2 (sv) * | 1991-06-26 | 1994-04-18 | Eka Nobel Ab | Förfarande för framställning av klordioxid |
| US5520902A (en) * | 1994-11-25 | 1996-05-28 | Occidental Chemical Corporation | Process for making chromium-free orthorhombic sodium sulfate |
| JP4012058B2 (ja) | 2001-12-21 | 2007-11-21 | キヤノン株式会社 | リサイクル性重合体、その製造方法、ならびにリサイクル処理方法 |
| EP1759749A1 (en) * | 2005-08-30 | 2007-03-07 | F.Hoffmann-La Roche Ag | Method for crystallization of a weakly acidic and/or weakly basic compound |
| CA2880358A1 (en) | 2012-08-22 | 2014-02-27 | Chemetics Inc. | Side stream removal of impurities in electrolysis systems |
| CN103539164B (zh) * | 2013-11-01 | 2016-05-25 | 四川省银河化学股份有限公司 | 一种由含铬芒硝精制元明粉的方法 |
| CN105907991B (zh) * | 2016-06-30 | 2018-01-05 | 华南理工大学 | 一种含六价铬废渣提取回收铬的脱毒处理方法 |
| CN106048239B (zh) * | 2016-06-30 | 2018-07-20 | 华南理工大学 | 一种含六价铬废渣的资源循环再利用的处理方法 |
| CN111448164A (zh) * | 2017-06-26 | 2020-07-24 | 丹尼尔·恩内斯托·加利 | 从天然盐滩和盐沼中的盐水获得最低杂质含量的浓缩盐水的方法，所述方法具有最小环境影响和最大锂回收 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2450259B2 (de) * | 1974-10-23 | 1979-03-29 | Bayer Ag, 5090 Leverkusen | Verfahren zur Reinigung von Elektrolysesole |
| DE2709728C2 (de) * | 1977-03-05 | 1981-10-29 | Bayer Ag, 5090 Leverkusen | Verfahren zur Herstellung von Chlor und Alkalihydroxid durch Elektrolyse unter Einsatz von calcium- und/oder sulfathaltigem Rohsalz |
| US4268486A (en) * | 1979-07-02 | 1981-05-19 | Olin Corporation | Selective chromate removal from a chlorate solution |
| US4259297A (en) * | 1979-09-04 | 1981-03-31 | Olin Corporation | Chromate removal from concentrated chlorate solution by chemical precipitation |
| CA1183489A (en) * | 1980-09-02 | 1985-03-05 | Hideo Yamamoto | Process for recovering cr(vi) ions from a chlorate cell liquor |
| US4636376A (en) * | 1985-09-30 | 1987-01-13 | Ppg Industries, Inc. | Sulfate removal from alkali metal chlorate solutions |
| US4702805A (en) * | 1986-03-27 | 1987-10-27 | C-I-L Inc. | Production of sodium chlorate |
| SE455706B (sv) * | 1986-12-04 | 1988-08-01 | Eka Nobel Ab | Sett vid framstellning av alkaliemetallklorat |
| CA1314688C (en) * | 1987-09-14 | 1993-03-23 | Ian Harry Warren | Stripping and recovery of dichromate in electrolytic chlorate systems |
-
1990
- 1990-07-16 US US07/552,620 patent/US5093089A/en not_active Expired - Lifetime
-
1991
- 1991-04-29 AU AU76126/91A patent/AU630031B2/en not_active Ceased
- 1991-05-07 CA CA002041914A patent/CA2041914C/en not_active Expired - Lifetime
- 1991-07-03 FI FI913234A patent/FI101530B/fi not_active IP Right Cessation
- 1991-07-09 NZ NZ238887A patent/NZ238887A/en unknown
- 1991-07-11 ZA ZA915393A patent/ZA915393B/xx unknown
- 1991-07-12 SE SE9102169A patent/SE506783C2/sv not_active IP Right Cessation
- 1991-07-15 JP JP3198315A patent/JPH0624739A/ja active Pending
- 1991-07-15 PT PT98318A patent/PT98318B/pt not_active IP Right Cessation
- 1991-07-16 CN CN91104682A patent/CN1050866C/zh not_active Expired - Fee Related
- 1991-07-16 ES ES09101663A patent/ES2033580B1/es not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| SE9102169D0 (sv) | 1991-07-12 |
| CA2041914A1 (en) | 1992-01-17 |
| AU630031B2 (en) | 1992-10-15 |
| FI101530B1 (fi) | 1998-07-15 |
| FI101530B (fi) | 1998-07-15 |
| JPH0624739A (ja) | 1994-02-01 |
| FI913234A (fi) | 1992-01-17 |
| CA2041914C (en) | 1997-12-30 |
| PT98318B (pt) | 1999-01-29 |
| ES2033580A1 (es) | 1993-03-16 |
| ES2033580B1 (es) | 1997-07-16 |
| AU7612691A (en) | 1992-01-16 |
| CN1058240A (zh) | 1992-01-29 |
| CN1050866C (zh) | 2000-03-29 |
| US5093089A (en) | 1992-03-03 |
| SE506783C2 (sv) | 1998-02-09 |
| ZA915393B (en) | 1992-06-24 |
| NZ238887A (en) | 1992-08-26 |
| SE9102169L (sv) | 1992-01-17 |
| FI913234A0 (fi) | 1991-07-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| BB1A | Laying open of patent application |
Effective date: 19920114 |
|
| FG3A | Patent granted, date of granting |
Effective date: 19981002 |
|
| MM3A | Annulment or lapse |
Free format text: LAPSE DUE TO NON-PAYMENT OF FEES Effective date: 20050404 |