[go: up one dir, main page]

ES2138215T3 - Metodo para eliminar un color no deseado de acido clorhidrico. - Google Patents

Metodo para eliminar un color no deseado de acido clorhidrico.

Info

Publication number
ES2138215T3
ES2138215T3 ES95922008T ES95922008T ES2138215T3 ES 2138215 T3 ES2138215 T3 ES 2138215T3 ES 95922008 T ES95922008 T ES 95922008T ES 95922008 T ES95922008 T ES 95922008T ES 2138215 T3 ES2138215 T3 ES 2138215T3
Authority
ES
Spain
Prior art keywords
hydrochloric acid
eliminating
unwanted color
removing iron
unwanted
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
ES95922008T
Other languages
English (en)
Inventor
Ragnar Wold
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Norsk Hydro ASA
Original Assignee
Norsk Hydro ASA
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 Norsk Hydro ASA filed Critical Norsk Hydro ASA
Application granted granted Critical
Publication of ES2138215T3 publication Critical patent/ES2138215T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B7/00—Halogens; Halogen acids
    • C01B7/01—Chlorine; Hydrogen chloride
    • C01B7/07—Purification ; Separation
    • C01B7/0706—Purification ; Separation of hydrogen chloride

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Treatment Of Sludge (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Optical Filters (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)
  • Pigments, Carbon Blacks, Or Wood Stains (AREA)
  • Catalysts (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)

Abstract

SE PRESENTA UN METODO PARA ELIMINAR LOS MATERIALES COLORANTES COMO EL HIERRO Y LOS HALOGENOS DEL ACIDO HIDROCLORICO. ENTRE LOS HALOGENOS SON ESPECIALMENTE EL CLORURO Y EL BROMURO LOS QUE CONTRIBUYEN A DAR COLOR. PRIMERO SE ELIMINA EL HIERRO DEL ACIDO HIDROCLORICO PREFERIBLEMENTE MEDIANTE FILTRADO E INTERCAMBIO DE IONES Y POSTERIORMENTE SE AÑADE UN AGENTE REDUCTOR AL ACIDO, QUE CONTIENE NITROGENO. SE PREFIERE UTILIZAR COMPUESTOS QUE CONTENGAN HIDROXILO DE AMINO, PREFERIBLEMENTE HIDROCLORO DE HIDROXILAMINA (HIDROXILO DE CLORURO DE AMONIO). EL AGENTE REDUCTOR SE AÑADE EN UN EXCESO ESTOIQUIOMETRICO.
ES95922008T 1994-06-03 1995-05-31 Metodo para eliminar un color no deseado de acido clorhidrico. Expired - Lifetime ES2138215T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NO19942074A NO179243B1 (no) 1994-06-03 1994-06-03 Fremgangsmate for a fjerne uonsket farge fra saltsyre, samt anvendelse av hydroksylaminhydroklorid for a fjerne uonsket farge fra saltsyre

Publications (1)

Publication Number Publication Date
ES2138215T3 true ES2138215T3 (es) 2000-01-01

Family

ID=19897144

Family Applications (1)

Application Number Title Priority Date Filing Date
ES95922008T Expired - Lifetime ES2138215T3 (es) 1994-06-03 1995-05-31 Metodo para eliminar un color no deseado de acido clorhidrico.

Country Status (12)

Country Link
US (1) US6290927B1 (es)
EP (1) EP0725759B1 (es)
JP (1) JPH08509455A (es)
CN (1) CN1040865C (es)
AT (1) ATE184860T1 (es)
AU (1) AU2684395A (es)
DE (1) DE69512378T2 (es)
ES (1) ES2138215T3 (es)
NO (1) NO179243B1 (es)
PL (1) PL179886B1 (es)
RU (1) RU2107020C1 (es)
WO (1) WO1995033680A1 (es)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10101394A1 (de) * 2001-01-15 2002-07-18 Bayer Ag Verfahren zur Verwertung von Abfallsalzmischungen von HALEX-Reaktionen
JP2007022956A (ja) * 2005-07-15 2007-02-01 Mitsubishi Gas Chem Co Inc 高純度アミノメチレンホスホン酸の製造方法
US20160130143A1 (en) 2013-06-17 2016-05-12 Reliance Industries Limited A Process For The Removal Of Metal Contaminants From Fluids
CN108383083A (zh) * 2018-03-16 2018-08-10 三峡大学 一种负载型盐酸脱色剂及其制备方法和脱色工艺
CN108435137A (zh) * 2018-03-16 2018-08-24 三峡大学 一种盐酸脱色及盐酸金属离子脱除的负载型试剂及制备方法

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1770010A (en) * 1927-04-27 1930-07-08 British Dyestuffs Corp Ltd Removal of free chlorine and bromine from fluid mixtures
US2787525A (en) * 1952-01-23 1957-04-02 Columbia Southern Chem Corp Removal of free chlorine from hci
US2787523A (en) * 1952-02-23 1957-04-02 Columbia Southern Chem Corp Removal of chlorine from hci
US3855400A (en) * 1972-02-10 1974-12-17 Hooker Chemicals Plastics Corp Purification of hydrochloric acid
DE2836580C3 (de) * 1978-08-21 1981-11-05 Chemische Werke Hüls AG, 4370 Marl Verfahren zur Trennung von Chlorwasserstoff und Bromwasserstoff
US4349525A (en) * 1981-04-21 1982-09-14 Chisso Corporation Process for purifying hydrochloric acid produced from alkali chloride and sulfuric acid
JPS6136102A (ja) * 1984-07-27 1986-02-20 Asahi Glass Co Ltd 塩化水素中に含まれる弗化水素の除去法
JPH02233503A (ja) * 1989-03-06 1990-09-17 Daiso Co Ltd 塩酸の精製方法
DE4110177C2 (de) * 1991-03-27 1995-01-05 Qvf Glastech Gmbh Verfahren zur Herstellung einer von Fremdhalogenen gereinigten Salzsäure
DE4344200C2 (de) 1993-12-23 1995-11-30 Schering Ag Verfahren zur Salzsäuregewinnung aus brom- und jodhaltigen Rauchgasen

Also Published As

Publication number Publication date
US6290927B1 (en) 2001-09-18
PL312777A1 (en) 1996-05-13
EP0725759B1 (en) 1999-09-22
CN1128978A (zh) 1996-08-14
NO179243B1 (no) 1996-09-23
ATE184860T1 (de) 1999-10-15
NO942074D0 (no) 1994-06-03
EP0725759A1 (en) 1996-08-14
NO942074A (no) 1995-12-04
RU2107020C1 (ru) 1998-03-20
DE69512378T2 (de) 2000-04-06
NO179243C (no) 1996-09-04
WO1995033680A1 (en) 1995-12-14
AU2684395A (en) 1996-01-04
NO179243B (no) 1996-05-28
JPH08509455A (ja) 1996-10-08
PL179886B1 (pl) 2000-11-30
CN1040865C (zh) 1998-11-25
DE69512378D1 (de) 1999-10-28

Similar Documents

Publication Publication Date Title
MX9302214A (es) Derivados de taxol y proceso para su preparacion
ES2124373T3 (es) Procedimiento para la preparacion de derivados del acido n-acil-n,n',n'-etilendiamintriacetico.
PL318595A1 (en) Derivatives of phenyloacetic acid, method of and intermediate products for obtaining them and agents containing such derivatives
BG99680A (en) Derivatives of oxalylaminobenzofuran and oxalylaminobenzothienyl
FI940487A7 (fi) Vianmääritysmenetelmä kehitysprosessia varten
FI921156A7 (fi) Paisuva, tulenkestävä päällyste, tulenkestävä materiaali ja menetelmä tulenkestävän materiaalin valmistamiseksi
ZA93811B (en) Methods of treating inflammatory dermatoses.
EP0617457A3 (en) Process for the production of semiconductor wafers.
NO986176D0 (no) Metode for regulere Haematococcus SPP. vekstprosess
PL318105A1 (en) Method of obtaining 2-hydroxy-4-methylothiobutyric (mha), mha as such and application thereof
DE3886078D1 (de) Fluor enthaltende aromatische Verbindung, Verfahren für ihre Herstellung und ihre Verwendung.
ES2138215T3 (es) Metodo para eliminar un color no deseado de acido clorhidrico.
PL290448A1 (en) Combustion reducing agent, method of reducing flammability
GB9505996D0 (en) High stability, organic tanning process
HUT64853A (en) Method for producing huminic acid and metal compounds as well as for application of said compounds as absorbent, antidoum or source of trace elements
PL327730A1 (en) Derivatives of iminoxyphenyloacetic acid, method of obtaining them as well as intermediate compounds and application of such derivatives
IL99875A0 (en) Method of debrominating dibrominated naphthalene derivatives
ZA9367B (en) Method for increasing wool production and quality, and the liveweight of lambs
FI930335A7 (fi) Menetelmä Phaffia rhodozyman käsittelemiseksi
DE59300976D1 (de) Verfahren zur Verminderung des Halogengehaltes von polyhalogenierten Aromaten.
DE3382308D1 (de) Hydantoinderivate zur inhibierung der aldose-reduktase-aktivitaet, zusammensetzungen dafuer und verfahren zur herstellung von spiro-fluoren-verbindungen.
PL329494A1 (en) Method of obtaining derivatives of 4-cyano-4-indazolylcyclohexanecarboxylic acid, method of treating intermediate indazoles and novel intermediate compounds
DE69822870D1 (de) Verfahren zur desmethylierung von erythromycinen und deren derivaten
DE69323087D1 (de) Verfahren zur herstellung von anilin-derivaten
AU564040B2 (en) 1,2,3,4 - tetrahydro-1-aminomethyl-4-phenyl - isoquinolines

Legal Events

Date Code Title Description
FG2A Definitive protection

Ref document number: 725759

Country of ref document: ES