BR0002611A - Aparelho, instalação de tratamento e processo para remover impurezas de uma solução de ácido fraco, instalação e processo para tratar uma solução de ácido fraco, torta de selênio concentrada e processo para remover selênio de uma solução de depuração ácida - Google Patents

Aparelho, instalação de tratamento e processo para remover impurezas de uma solução de ácido fraco, instalação e processo para tratar uma solução de ácido fraco, torta de selênio concentrada e processo para remover selênio de uma solução de depuração ácida

Info

Publication number
BR0002611A
BR0002611A BR0002611-5A BR0002611A BR0002611A BR 0002611 A BR0002611 A BR 0002611A BR 0002611 A BR0002611 A BR 0002611A BR 0002611 A BR0002611 A BR 0002611A
Authority
BR
Brazil
Prior art keywords
acid solution
weak acid
selenium
plant
mercury
Prior art date
Application number
BR0002611-5A
Other languages
English (en)
Inventor
George Houlachi
Gary Monteith
Lucy Rosato
Original Assignee
Noranda Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Noranda Inc filed Critical Noranda Inc
Publication of BR0002611A publication Critical patent/BR0002611A/pt

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B17/00—Sulfur; Compounds thereof
    • C01B17/48—Sulfur dioxide; Sulfurous acid
    • C01B17/50—Preparation of sulfur dioxide
    • C01B17/56—Separation; Purification
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/73—After-treatment of removed components
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B17/00—Sulfur; Compounds thereof
    • C01B17/48—Sulfur dioxide; Sulfurous acid
    • C01B17/50—Preparation of sulfur dioxide
    • C01B17/52—Preparation of sulfur dioxide by roasting sulfides
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B17/00—Sulfur; Compounds thereof
    • C01B17/69—Sulfur trioxide; Sulfuric acid
    • C01B17/90—Separation; Purification
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B17/00—Sulfur; Compounds thereof
    • C01B17/69—Sulfur trioxide; Sulfuric acid
    • C01B17/90—Separation; Purification
    • C01B17/906—Removal of mercury
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B19/00—Selenium; Tellurium; Compounds thereof
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5236—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities using inorganic agents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/60—Heavy metals or heavy metal compounds
    • B01D2257/602—Mercury or mercury compounds
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
    • C01P2006/00—Physical properties of inorganic compounds
    • C01P2006/80—Compositional purity
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2101/00—Nature of the contaminant
    • C02F2101/10—Inorganic compounds
    • C02F2101/20—Heavy metals or heavy metal compounds
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/18—Nature of the water, waste water, sewage or sludge to be treated from the purification of gaseous effluents
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S210/00—Liquid purification or separation
    • Y10S210/902—Materials removed
    • Y10S210/911—Cumulative poison
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S210/00—Liquid purification or separation
    • Y10S210/902—Materials removed
    • Y10S210/911—Cumulative poison
    • Y10S210/912—Heavy metal
    • 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S210/00—Liquid purification or separation
    • Y10S210/902—Materials removed
    • Y10S210/911—Cumulative poison
    • Y10S210/912—Heavy metal
    • Y10S210/914—Mercury

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Hydrology & Water Resources (AREA)
  • Biomedical Technology (AREA)
  • Analytical Chemistry (AREA)
  • Water Supply & Treatment (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Removal Of Specific Substances (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Treatment Of Water By Oxidation Or Reduction (AREA)
  • Treating Waste Gases (AREA)

Abstract

''APARELHO, INSTALAçãO DE TRATAMENTO E PROCESSO PARA REMOVER IMPUREZAS DE UMA SOLUçãO DE áCIDO FRACO, INSTALAçãO E PROCESSO PARA TRATAR UMA SOLUçãO DE áCIDO FRACO, TORTA DE SELêNIO CONCENTRADA E PROCESSO PARA REMOVER SELêNIO DE UMA SOLUçãO DE DEPURAçãO áCIDA''. A presente invenção se refere a um aparelho para remover impurezas volatéis tais como mercúrio e selênio de uma solução de ácido fraco resultantes de depuração de gases gerados na produção de ácido sulfúreo por ustulação de concentrados de sulfeto. O aparelho compreende uma unidade de filtração de calcinado para remover calcinado da solução de ácido fraco, uma unidade de mistura de sulfeto de sódio para precipitar mercúrio da solução de ácido fraco, uma unidade de mistura de ditionito de sódio para precipitar selênio da solução de ácido fraco e uma unidade de filtração de mercúrio-selênio para filtrar o mercúrio e o selênio precipitados da solução de ácido fraco. A presente invenção ainda se refere a uma instalação de tratamento que utiliza este processo, um processo para remover impurezas voláteis de uma solução de ácido fraco e uma torta de selênio obtida pela utilização da presente invenção.
BR0002611-5A 1999-06-10 2000-06-09 Aparelho, instalação de tratamento e processo para remover impurezas de uma solução de ácido fraco, instalação e processo para tratar uma solução de ácido fraco, torta de selênio concentrada e processo para remover selênio de uma solução de depuração ácida BR0002611A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/329,353 US6228270B1 (en) 1999-06-10 1999-06-10 Process for reducing selenium and mercury from aqueous solutions

Publications (1)

Publication Number Publication Date
BR0002611A true BR0002611A (pt) 2001-01-02

Family

ID=23284997

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0002611-5A BR0002611A (pt) 1999-06-10 2000-06-09 Aparelho, instalação de tratamento e processo para remover impurezas de uma solução de ácido fraco, instalação e processo para tratar uma solução de ácido fraco, torta de selênio concentrada e processo para remover selênio de uma solução de depuração ácida

Country Status (9)

Country Link
US (1) US6228270B1 (pt)
EP (1) EP1226092B1 (pt)
AU (1) AU775117B2 (pt)
BR (1) BR0002611A (pt)
CA (1) CA2412393C (pt)
ES (1) ES2298144T3 (pt)
MX (1) MXPA01012766A (pt)
NO (1) NO332796B1 (pt)
WO (1) WO2000076917A1 (pt)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10336534A1 (de) * 2003-08-05 2005-02-24 Stockhausen Gmbh Verfahren zur Verminderung der Schwermetallkonzentration in Abwasseraufbereitungsschlämmen
FI117190B (fi) * 2003-08-12 2006-07-31 Outokumpu Oy Menetelmä elohopean poistamiseksi rikkihaposta tiosulfaattisaostuksella
US10183879B2 (en) 2013-06-14 2019-01-22 Steag Energy Services Gmbh Method for removing mercury and selenium from sulfate-containing waste water
EP2813475B1 (de) * 2013-06-14 2016-08-10 STEAG Energy Services GmbH Verfahren zum entfernen von quecksilber und selen aus sulfathaltigem abwasser
US11535537B2 (en) 2015-01-06 2022-12-27 Ecolab Usa Inc. Process for removal of selenium from water by dithionite ions
CN107922213A (zh) * 2015-08-05 2018-04-17 三菱重工业株式会社 水处理系统、发电成套设备及水处理系统的控制方法
CN106082140A (zh) * 2016-08-23 2016-11-09 广西联壮科技股份有限公司 多层高效的硫化钠除杂装置
CN109626656A (zh) * 2019-01-19 2019-04-16 江钨世泰科钨品有限公司 一种硫化废水的治理方法
CN109626655A (zh) * 2019-01-19 2019-04-16 江钨世泰科钨品有限公司 一种硫化废水循环利用的方法
CN110203890A (zh) * 2019-06-18 2019-09-06 江钨世泰科钨品有限公司 具有两个闭循环的硫化氢制备方法
CN110182766A (zh) * 2019-06-20 2019-08-30 江钨世泰科钨品有限公司 全程无污染物排放的h2s制备方法
CN110467158B (zh) * 2019-08-21 2022-09-13 四川金山制药有限公司 一种特定级低硒硫酸的制备方法

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3390952A (en) * 1964-09-23 1968-07-02 Khim Metall I An Kaz Ssr Method for extracting selenious oxide from gas mixtures
FR1509084A (fr) 1966-11-29 1968-01-12 Electro Chimie Soc D Procédé de récupération de sélénium iv utilisé comme catalyseur d'oxydation en solution
SE334598B (pt) * 1969-09-01 1971-05-03 Boliden Ab
DE1954828B2 (de) 1969-10-31 1974-07-18 Chemische Werke Huels Ag, 4370 Marl Verfahren zur Verringerung der Quecksilber-Verluste bei der Chlor-Alkali-Elektrolyse nach dem Amalgam-Verfahren
FI45767C (fi) 1970-07-03 1972-09-11 Outokumpu Oy Menetelmä elohopean ja/tai seleenin poistamiseksi ja talteenottamiseks i elohopea- ja/tai seleenipitoisista kaasuista.
US3740331A (en) * 1971-06-23 1973-06-19 Sybron Corp Method for precipitation of heavy metal sulfides
US4057423A (en) * 1971-09-10 1977-11-08 Mitsui Mining & Smelting Co., Ltd. Method for the manufacture of mercury free sulfuric acid
US3966889A (en) 1973-07-31 1976-06-29 Asahi Glass Co., Ltd. Process for the recovery of selenium from waste gas
US3959097A (en) 1975-05-30 1976-05-25 Amax Inc. Selenium rejection during acid leaching of matte
US3933635A (en) 1975-07-15 1976-01-20 The United States Of America As Represented By The Secretary Of The Interior Method for removing soluble selenium from acidic waste water
US4128617A (en) 1977-07-11 1978-12-05 Newmont Exploration Limited Treatment of zinc calcines for zinc recovery
CA1139258A (en) 1980-08-19 1983-01-11 Donald R. Weir Removal of selenium from acidic copper sulphate solutions
FI62002C (fi) 1981-04-15 1982-11-10 Outokumpu Oy Foerfarande och anordning foer separering av kvicksilver ur svveldioxidhaltiga heta och fuktiga gaser
US4377556A (en) 1982-04-09 1983-03-22 Sherritt Gordon Mines Limited Process for removing dissolved selenium values from an acidic aqueous copper sulphate solution
EP0097478B1 (en) * 1982-06-22 1989-06-07 Seitetsu Kagaku Co., Ltd. Process for removal and recovery of mercury from waste water
SE439153B (sv) * 1982-12-03 1985-06-03 Boliden Ab Forfarande vid produktion av svavelsyra ur svaveldioxidhaltig gas herrorande fran behandling av kvicksilverinnehallande ravaror och mellanprodukter
SE462369B (sv) * 1988-03-09 1990-06-18 Flaekt Ab Foerfarande vid rening av processgaser saasom roekgaser
DE3927701A1 (de) * 1989-08-25 1991-02-28 Gnii Cvetnych Metallov Gincvet Verfahren und anlage zur reinigung eines gases mit festen und gasfoermigen beimengungen
US5122279A (en) * 1991-04-08 1992-06-16 Romar Technologies Inc. Ferrous dithionite process and compositions for removing dissolved heavy metals from water
US5200082A (en) 1991-07-02 1993-04-06 Santina Water Company Method for removing toxic substances from industrial and agricultural waste water
US5200088A (en) * 1991-07-15 1993-04-06 Kolene Corporation Removal of hexavalent chromium from waste material
DE4302910C1 (de) * 1993-02-02 1994-09-15 Straten Guenter Fällmittel zur Ausfällung von Schwermetallen, ein Verfahren zu dessen Herstellung sowie dessen Verwendung
US5330658A (en) * 1993-03-17 1994-07-19 Westinghouse Electric Corporation Solution decontamination method using precipitation and flocculation techniques
US5397478A (en) * 1993-08-13 1995-03-14 Sevenson Environmental Services, Inc. Fixation and stabilization of chromium in contaminated materials
US5536416A (en) * 1994-10-31 1996-07-16 Hazen Research, Inc. Method for removing metals from a solution

Also Published As

Publication number Publication date
US6228270B1 (en) 2001-05-08
EP1226092A1 (en) 2002-07-31
WO2000076917A1 (en) 2000-12-21
CA2412393A1 (en) 2000-12-21
CA2412393C (en) 2005-11-29
NO332796B1 (no) 2013-01-14
NO20016042D0 (no) 2001-12-10
ES2298144T3 (es) 2008-05-16
AU5379100A (en) 2001-01-02
EP1226092B1 (en) 2007-12-26
AU775117B2 (en) 2004-07-15
MXPA01012766A (es) 2003-09-04
NO20016042L (no) 2002-02-08

Similar Documents

Publication Publication Date Title
BR0002611A (pt) Aparelho, instalação de tratamento e processo para remover impurezas de uma solução de ácido fraco, instalação e processo para tratar uma solução de ácido fraco, torta de selênio concentrada e processo para remover selênio de uma solução de depuração ácida
NO883234D0 (no) Fremgangsmaate ved fremstilling av soetningsmiddel.
MX2009004737A (es) Tratamiento del jugo de caña de azucar.
BR9710107B1 (pt) processo para a separação de inibidor de alfa-1-proteinase da pasta da fração iv1 + iv4 de cohn.
ES2139227T3 (es) Concentrado de fibrinogeno obtenido de plasma sanguineo, procedimiento e instalacion para su preparacion.
SE8001720L (sv) Forfarande for att rena avfallsvattenlosning fran tungmetaller
AR029508A1 (es) Proceso para remover y recuperar cloruro de sodio de los efluentes de desecho provenientes de los procesos de fabricacion del acido n-fosfometiliminodiacetico (pmida)
BR9916127B1 (pt) processo de tratamento de cal obtendo uma soluÇço de Íons cÁlcio purificada utilizada para a produÇço de produtos de cÁlcio.
TW200633932A (en) Copper metal recovery system
SU1440341A3 (ru) Способ очистки сточных вод производства и переработки желтого фосфора
ES2051475T3 (es) Procedimiento para la purificacion de fluoruro de hidrogeno.
CO5050271A1 (es) Metodo de retirar contaminantes desde efluentes con tra- tamiento electroquimico y aparato para realizarlo.
BR0207877A (pt) Método para remoção de cálcio de uma solução de sulfato em um processo de produção de zinco
ES2214232T3 (es) Procedimiento e instalacion de depuracion de un jugo azucarado.
BR8401891A (pt) Processo para tratamento de uma solucao de purgacao,particularmente destinada a um processo para extracao de zinco por eletrolise
CN107381877B (zh) 一种硝基甲烷高盐废水处理方法
RU2487086C2 (ru) Способ очистки сточных вод от ионов ртути и цинка
DE602004028230D1 (de) Verfahren zur Reinigung und zur Herstellung von Phosphorsäure
SU1664859A1 (ru) Способ переработки пирротилового концентрата
SU922168A1 (ru) Способ очистки сточных вод
DE69210816D1 (de) Verfahren zur Entfernung von abgelagerten Verunreinigungen in einem organischen Strom zur Erzeugung reiner Phosphorsäure
RU2014666C1 (ru) Способ восстановления керамических трубок из горелок для натриевых ламп высокого давления
RU2224035C1 (ru) Способ вывода сульфат-ионов из растворов цинкового производства
ES2080694B1 (es) Metodo para el tratamiento de purificacion de aguas residuales.
NO20030410D0 (no) Fremgangsmåte ved drift av et beisebad for aluminium

Legal Events

Date Code Title Description
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted

Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 09/06/2000, OBSERVADAS AS CONDICOES LEGAIS.

B21F Lapse acc. art. 78, item iv - on non-payment of the annual fees in time

Free format text: REFERENTE A 18A ANUIDADE.

B24J Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12)