RO98702B1 - Process for obtaining a lignosulphonate-based additive used at cellulose fabrication - Google Patents

Process for obtaining a lignosulphonate-based additive used at cellulose fabrication

Info

Publication number
RO98702B1
RO98702B1 RO129753A RO12975387A RO98702B1 RO 98702 B1 RO98702 B1 RO 98702B1 RO 129753 A RO129753 A RO 129753A RO 12975387 A RO12975387 A RO 12975387A RO 98702 B1 RO98702 B1 RO 98702B1
Authority
RO
Romania
Prior art keywords
cellulose
obtaining
additive used
lignosulphonate
fabrication
Prior art date
Application number
RO129753A
Other languages
Romanian (ro)
Inventor
MARIA BîRSAN
Gheorghe Rozmarin
Gheorghe Borhan
Original Assignee
INSTITUTUL DE CERCETARE SI PROIECTARE PENTRU CELULOZA SI HîRTIE
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 CELULOZA SI HîRTIE filed Critical INSTITUTUL DE CERCETARE SI PROIECTARE PENTRU CELULOZA SI HîRTIE
Priority to RO129753A priority Critical patent/RO98702B1/en
Publication of RO98702B1 publication Critical patent/RO98702B1/en

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  • Compositions Of Macromolecular Compounds (AREA)
  • Polysaccharides And Polysaccharide Derivatives (AREA)

Abstract

Inventia se refera la un procedeu de obtinere a unui aditiv de baza de lignosulfonat utilizat la fabricarea celulozei, în procesul de fierbere sulfat. Se porneste de la borhotul lignosulfonic care se trateaza cu NaOH si apoi cu un amestec de acid azotic si azotil de sodiu. Aditivul adaugat în procesul de preparare a celulozei conduce la un randament marit în celuloza.The invention relates to a process for obtaining a lignosulfonate base additive used in the manufacture of cellulose in the sulphate boiling process. Starting from the lignosulfonic borohydrate treated with NaOH and then with a mixture of nitric acid and sodium azoate. The added additive in the pulp preparation process results in increased cellulose yield.

RO129753A 1987-09-17 1987-09-17 Process for obtaining a lignosulphonate-based additive used at cellulose fabrication RO98702B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RO129753A RO98702B1 (en) 1987-09-17 1987-09-17 Process for obtaining a lignosulphonate-based additive used at cellulose fabrication

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RO129753A RO98702B1 (en) 1987-09-17 1987-09-17 Process for obtaining a lignosulphonate-based additive used at cellulose fabrication

Publications (1)

Publication Number Publication Date
RO98702B1 true RO98702B1 (en) 1990-03-30

Family

ID=40906798

Family Applications (1)

Application Number Title Priority Date Filing Date
RO129753A RO98702B1 (en) 1987-09-17 1987-09-17 Process for obtaining a lignosulphonate-based additive used at cellulose fabrication

Country Status (1)

Country Link
RO (1) RO98702B1 (en)

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