RO94367B1 - Procedeu de obtinere a unui colorant azoic din lignina reziduala - Google Patents

Procedeu de obtinere a unui colorant azoic din lignina reziduala

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Publication number
RO94367B1
RO94367B1 RO122138A RO12213886A RO94367B1 RO 94367 B1 RO94367 B1 RO 94367B1 RO 122138 A RO122138 A RO 122138A RO 12213886 A RO12213886 A RO 12213886A RO 94367 B1 RO94367 B1 RO 94367B1
Authority
RO
Romania
Prior art keywords
residual lignin
preparing
azoic dyestuff
residual
azoic
Prior art date
Application number
RO122138A
Other languages
English (en)
Other versions
RO94367A3 (ro
Inventor
Gheorghe Rozmarin
Maria Poradi
Gheorghe Borhan
Original Assignee
Institutul De Cercetare Si Proiectare Pentru Fibre Artificiale
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 Institutul De Cercetare Si Proiectare Pentru Fibre Artificiale filed Critical Institutul De Cercetare Si Proiectare Pentru Fibre Artificiale
Priority to RO122138A priority Critical patent/RO94367B1/ro
Publication of RO94367A3 publication Critical patent/RO94367A3/ro
Publication of RO94367B1 publication Critical patent/RO94367B1/ro

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Abstract

Inventia se refera la un procedeu de obtinere a unui colorant azoic din lignina reziduala complementar la inventia principala cu descrierea nr.91990 prin aminare cu etilendiamina, diazotare si cuplare cu acid gamma, în care se foloseste ca materie prima lignina reziduala sulfit provenind de la fabricile de celuloza sulfit.
RO122138A 1986-02-06 1986-02-06 Procedeu de obtinere a unui colorant azoic din lignina reziduala RO94367B1 (ro)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RO122138A RO94367B1 (ro) 1986-02-06 1986-02-06 Procedeu de obtinere a unui colorant azoic din lignina reziduala

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RO122138A RO94367B1 (ro) 1986-02-06 1986-02-06 Procedeu de obtinere a unui colorant azoic din lignina reziduala

Publications (2)

Publication Number Publication Date
RO94367A3 RO94367A3 (ro) 1988-04-30
RO94367B1 true RO94367B1 (ro) 1988-05-01

Family

ID=20118981

Family Applications (1)

Application Number Title Priority Date Filing Date
RO122138A RO94367B1 (ro) 1986-02-06 1986-02-06 Procedeu de obtinere a unui colorant azoic din lignina reziduala

Country Status (1)

Country Link
RO (1) RO94367B1 (ro)

Also Published As

Publication number Publication date
RO94367A3 (ro) 1988-04-30

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