Kraft hamurunda kalıntı ligninin izole edilmesi ve yapısı

Kağıt hamuru hazırlama ve ağartma işleminde amaç polısakkaritleri zarar vermeden lignini uzaklaştırmaktır. Kalıntı ligninin analizi ligninin reaksiyona girmeyen kısmı hakkında çok değerli bilgiler vermektedir. Kalıntı ligninin özelliklerini ve yapısını açıklayabilmek kağıt hamuru hazırlama tekniği ve ağartma işlemlerini modifiye edebilmek için önemlidir. Kalıntı ligninin yapısını açıklamak için iki değişik izole etme methodu geliştirilmiştir. Bu izole edilen lignin örnekleri değisik analitik metotlar ile analiz edilmistir.

Anahtar Kelimeler:

analitik yöntemler, ağartma, fenolik bileşikler, kağıt hamuru üretimi, lignin

Isolation and structure ofresidual lignin from kraft pulp

In pulping and bleaching, the purpose is to remove lignin without damaging polysaccharides. It is very important to elucidate the characteristic and structures of residual lignin in order to modify pulping and bleaching process. Analysis of residual lignin gives valuable information about unreactive part of the lignin. In order to clarify the structure of residual lignin, two different isolation methods were developed. These lignin samples were investigated with different analytical techniques.

Keywords:

analytical methods, bleaching, phenolic compounds, pulping, lignin,

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