AR246076A1 - Procedmineto para la produccion de cromatos alcalinos a partir de minerales de cromo, dispositivo para llevar a cabo el procedimiento y compuestos de cromo hexavalente obtenidos - Google Patents
Procedmineto para la produccion de cromatos alcalinos a partir de minerales de cromo, dispositivo para llevar a cabo el procedimiento y compuestos de cromo hexavalente obtenidosInfo
- Publication number
- AR246076A1 AR246076A1 AR91319656A AR31965691A AR246076A1 AR 246076 A1 AR246076 A1 AR 246076A1 AR 91319656 A AR91319656 A AR 91319656A AR 31965691 A AR31965691 A AR 31965691A AR 246076 A1 AR246076 A1 AR 246076A1
- Authority
- AR
- Argentina
- Prior art keywords
- minerals
- plant
- preparation
- alkaline
- chromates
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B34/00—Obtaining refractory metals
- C22B34/30—Obtaining chromium, molybdenum or tungsten
- C22B34/32—Obtaining chromium
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G37/00—Compounds of chromium
- C01G37/14—Chromates; Bichromates
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Inorganic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Coloring Foods And Improving Nutritive Qualities (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Oxygen, Ozone, And Oxides In General (AREA)
- Fertilizers (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
PRODUCCION DE CROMATOS ALCALINOS A PARTIR DE MINERALES DE CROMO, QUE EMPLEA LA DISGREGACION OXIDANTE DE MINERALES Y/O COMPUESTOS CON CROMO TRIVALENTE, QUE ES EFECTUADA EN FASE SECA, EN PRESENCIADE ALCALIS, CALENTANDO LA MEZCLA A UNA TEMPERATURA ENTRE 500 Y 1500 *C, EN UNA ATMOSFERA CON UNA, CONCENTRACION DE OXIGENO < 8%, (REGULABLE EN FUNCION DEL TIEMPO DE PERMANENCIA DEL MATERIAL EN EL REACTOR), UTILIZANDO LOS GASES SALIENTES DEL REACTOR PARA LA ACIDIFICACION DE LA SOLUCION DE CROMATOS ALCALINOS.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT20242A IT1239958B (it) | 1990-05-09 | 1990-05-09 | Procedimento ed impianto per la preparazione di cromati alcalini da minerali di cromo |
Publications (1)
Publication Number | Publication Date |
---|---|
AR246076A1 true AR246076A1 (es) | 1994-03-30 |
Family
ID=11165074
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AR91319656A AR246076A1 (es) | 1990-05-09 | 1991-05-09 | Procedmineto para la produccion de cromatos alcalinos a partir de minerales de cromo, dispositivo para llevar a cabo el procedimiento y compuestos de cromo hexavalente obtenidos |
Country Status (19)
Country | Link |
---|---|
US (1) | US5374408A (es) |
EP (1) | EP0527811B2 (es) |
JP (1) | JP2925733B2 (es) |
CN (1) | CN1032806C (es) |
AR (1) | AR246076A1 (es) |
AU (1) | AU646463B2 (es) |
BR (1) | BR9106425A (es) |
DE (1) | DE69116690T3 (es) |
ES (1) | ES2084160T5 (es) |
GE (1) | GEP19991529B (es) |
GR (1) | GR3019585T3 (es) |
IT (1) | IT1239958B (es) |
LT (1) | LT3677B (es) |
LV (1) | LV10942B (es) |
RO (1) | RO111442B1 (es) |
RU (1) | RU2084403C1 (es) |
TR (1) | TR28345A (es) |
WO (1) | WO1991017118A1 (es) |
ZA (1) | ZA913415B (es) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5370685A (en) * | 1991-07-16 | 1994-12-06 | Stanford Surgical Technologies, Inc. | Endovascular aortic valve replacement |
US5547646A (en) * | 1993-06-23 | 1996-08-20 | Bayer Aktiengesellschaft | Process for the decomposition of chrome ore by alkaline oxidation |
IT1269994B (it) * | 1993-09-30 | 1997-04-16 | Bayer Ag | Metodo per la fabbricazione di cromati alcalini da minerale di cromo |
DE4333349C2 (de) * | 1993-09-30 | 1999-03-11 | Bayer Ag | Verfahren zur Herstellung von Alkalichromaten aus Chromerz |
US5855601A (en) * | 1996-06-21 | 1999-01-05 | The Trustees Of Columbia University In The City Of New York | Artificial heart valve and method and device for implanting the same |
US7854803B1 (en) | 2005-01-11 | 2010-12-21 | Kirkpatrick William D | Composition of materials and processes of making boroncitrates to establish set times for hydraulic cements |
CN101717119B (zh) * | 2009-11-23 | 2012-06-06 | 新疆沈宏集团股份有限公司 | 铬矿少碱焙烧生产铬酸钠的方法 |
CN102120616A (zh) * | 2011-01-27 | 2011-07-13 | 重庆昌元化工有限公司 | 一种安全生产铬酸盐的装置 |
CN102134098A (zh) * | 2011-01-27 | 2011-07-27 | 重庆昌元化工有限公司 | 一种连续液相氧化反应生产铬酸盐的装置 |
JP5636994B2 (ja) * | 2011-02-04 | 2014-12-10 | 住友電気工業株式会社 | 亜クロム酸ナトリウムの製造方法 |
CN102643977B (zh) * | 2011-06-09 | 2014-03-19 | 四川省银河化学股份有限公司 | 一种铬铁矿的熔融液相焙烧方法 |
RU2535254C1 (ru) * | 2013-10-31 | 2014-12-10 | Игорь Александрович Фарбер | Способ комплексной переработки серпентин-хромитового рудного сырья |
CN106186068B (zh) * | 2016-07-06 | 2018-10-26 | 于广新 | 一种连续液相氧化制备铬酸盐的清洁生产方法 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE163814C (es) | ||||
DE171089C (es) | ||||
GB288250A (en) * | 1927-04-06 | 1929-08-27 | Bozel Maletra Prod Chimiques | Improvements in the thermal disintegration of chrome ores or minerals containing chromium |
DE1194148B (de) * | 1963-01-26 | 1965-06-03 | Zahn & Co G M B H | Verfahren nebst Vorrichtung zum alkalischen Roesten chromoxydhaltiger Stoffe |
GB1029705A (en) * | 1963-06-11 | 1966-05-18 | Pittsburgh Plate Glass Co | Improvements in and relating to chromium |
US3403970A (en) * | 1964-06-02 | 1968-10-01 | Union Carbide Corp | Process for preparing chromates |
JPS4828280B1 (es) * | 1970-08-31 | 1973-08-30 | ||
US3963824A (en) * | 1972-06-14 | 1976-06-15 | Produits Chimiques Ugine Kuhlmann | Process for extracting chromium from chromium ores |
JPS5139200B2 (es) * | 1972-07-24 | 1976-10-26 | ||
US4244925A (en) * | 1979-07-20 | 1981-01-13 | Allied Chemical Corporation | Method for production of alkali metal chromates from chrome ores |
NZ195142A (en) | 1979-10-15 | 1984-09-28 | Commw Scient Ind Res Org | Monitoring integrity of longitudinal steel members in conveyor belts and cables |
-
1990
- 1990-05-09 IT IT20242A patent/IT1239958B/it active IP Right Grant
-
1991
- 1991-04-29 DE DE69116690T patent/DE69116690T3/de not_active Expired - Fee Related
- 1991-04-29 WO PCT/IT1991/000034 patent/WO1991017118A1/en active IP Right Grant
- 1991-04-29 JP JP3507946A patent/JP2925733B2/ja not_active Expired - Fee Related
- 1991-04-29 AU AU77465/91A patent/AU646463B2/en not_active Ceased
- 1991-04-29 BR BR919106425A patent/BR9106425A/pt not_active Application Discontinuation
- 1991-04-29 EP EP91908406A patent/EP0527811B2/en not_active Expired - Lifetime
- 1991-04-29 RO RO92-01396A patent/RO111442B1/ro unknown
- 1991-04-29 RU RU9192016282A patent/RU2084403C1/ru not_active IP Right Cessation
- 1991-04-29 ES ES91908406T patent/ES2084160T5/es not_active Expired - Lifetime
- 1991-04-29 US US07/941,441 patent/US5374408A/en not_active Expired - Fee Related
- 1991-05-06 ZA ZA913415A patent/ZA913415B/xx unknown
- 1991-05-08 TR TR00472/91A patent/TR28345A/xx unknown
- 1991-05-09 CN CN91103599A patent/CN1032806C/zh not_active Expired - Fee Related
- 1991-05-09 AR AR91319656A patent/AR246076A1/es active
-
1993
- 1993-06-15 LV LVP-93-576A patent/LV10942B/lv unknown
- 1993-08-13 GE GEAP19931434A patent/GEP19991529B/en unknown
- 1993-09-15 LT LTIP977A patent/LT3677B/lt not_active IP Right Cessation
-
1996
- 1996-04-09 GR GR960400977T patent/GR3019585T3/el unknown
Also Published As
Publication number | Publication date |
---|---|
GR3019585T3 (en) | 1996-07-31 |
CN1057244A (zh) | 1991-12-25 |
AU7746591A (en) | 1991-11-27 |
EP0527811A1 (en) | 1993-02-24 |
IT9020242A1 (it) | 1991-11-09 |
US5374408A (en) | 1994-12-20 |
BR9106425A (pt) | 1993-05-04 |
AU646463B2 (en) | 1994-02-24 |
EP0527811B1 (en) | 1996-01-24 |
WO1991017118A1 (en) | 1991-11-14 |
IT1239958B (it) | 1993-11-27 |
LT3677B (en) | 1996-01-25 |
GEP19991529B (en) | 1999-03-05 |
RO111442B1 (ro) | 1996-10-31 |
JP2925733B2 (ja) | 1999-07-28 |
ES2084160T5 (es) | 2006-03-01 |
TR28345A (tr) | 1996-05-06 |
JPH05506637A (ja) | 1993-09-30 |
DE69116690T2 (de) | 1996-08-14 |
CN1032806C (zh) | 1996-09-18 |
ZA913415B (en) | 1992-02-26 |
LV10942A (lv) | 1995-12-20 |
LV10942B (en) | 1996-04-20 |
LTIP977A (en) | 1995-04-25 |
IT9020242A0 (it) | 1990-05-09 |
RU2084403C1 (ru) | 1997-07-20 |
ES2084160T3 (es) | 1996-05-01 |
EP0527811B2 (en) | 2005-08-03 |
DE69116690D1 (de) | 1996-03-07 |
DE69116690T3 (de) | 2006-06-08 |
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