NL177467B - PROCESS FOR THE PREPARATION OF A CATALYST FOR THE REDUCTION OF NITROGEN OXIDES IN WASTE GAS. - Google Patents

PROCESS FOR THE PREPARATION OF A CATALYST FOR THE REDUCTION OF NITROGEN OXIDES IN WASTE GAS.

Info

Publication number
NL177467B
NL177467B NLAANVRAGE7217018,B NL177467DB NL177467B NL 177467 B NL177467 B NL 177467B NL 177467D B NL177467D B NL 177467DB NL 177467 B NL177467 B NL 177467B
Authority
NL
Netherlands
Prior art keywords
catalyst
reduction
preparation
waste gas
nitrogen oxides
Prior art date
Application number
NLAANVRAGE7217018,B
Other languages
Dutch (nl)
Original Assignee
Hoechst Ag
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.)
Publication of NL177467B publication Critical patent/NL177467B/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B43/00—Preparation of azo dyes from other azo compounds
    • C09B43/18—Preparation of azo dyes from other azo compounds by acylation of hydroxyl group or of mercapto group
    • C09B43/24—Preparation of azo dyes from other azo compounds by acylation of hydroxyl group or of mercapto group with formation of —O—SO2—R or —O—SO3H radicals
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B35/00—Disazo and polyazo dyes of the type A<-D->B prepared by diazotising and coupling
    • C09B35/02—Disazo dyes
    • C09B35/039—Disazo dyes characterised by the tetrazo component
    • C09B35/08—Disazo dyes characterised by the tetrazo component the tetrazo component being a derivative of biphenyl
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B45/00—Complex metal compounds of azo dyes
    • C09B45/02—Preparation from dyes containing in o-position a hydroxy group and in o'-position hydroxy, alkoxy, carboxyl, amino or keto groups
    • C09B45/24—Disazo or polyazo compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Coloring (AREA)
NLAANVRAGE7217018,B 1952-04-10 PROCESS FOR THE PREPARATION OF A CATALYST FOR THE REDUCTION OF NITROGEN OXIDES IN WASTE GAS. NL177467B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH758087X 1952-04-10

Publications (1)

Publication Number Publication Date
NL177467B true NL177467B (en)

Family

ID=4534454

Family Applications (2)

Application Number Title Priority Date Filing Date
NLAANVRAGE7217018,B NL177467B (en) 1952-04-10 PROCESS FOR THE PREPARATION OF A CATALYST FOR THE REDUCTION OF NITROGEN OXIDES IN WASTE GAS.
NL83316D NL83316C (en) 1952-04-10

Family Applications After (1)

Application Number Title Priority Date Filing Date
NL83316D NL83316C (en) 1952-04-10

Country Status (4)

Country Link
BE (1) BE519082A (en)
DE (1) DE943369C (en)
GB (1) GB758087A (en)
NL (2) NL83316C (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR487778A (en) * 1917-01-23 1918-07-24 Soc Ind Chimique Bale Process for the preparation of new copper combinations of substantive azo dyes
US1775605A (en) * 1926-12-13 1930-09-09 Gen Aniline Works Inc New azo dyestuffs
DE538108C (en) * 1926-12-14 1931-11-11 I G Farbenindustrie Akt Ges Process for the preparation of azo dye derivatives
DE684524C (en) * 1936-02-21 1939-11-30 I G Farbenindustrie Akt Ges Process for the preparation of disazo dyes
BE453075A (en) * 1941-02-18

Also Published As

Publication number Publication date
DE943369C (en) 1956-05-17
NL83316C (en)
GB758087A (en) 1956-09-26
BE519082A (en)

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