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JAEA Reports

Alkali hydrolysis experiment of organic materials such as cement additives

Fukumoto, Masahiro; Nishikawa, Yoshiaki*

JNC TN8400 2001-017, 355 Pages, 2001/03

JNC-TN8400-2001-017.pdf:6.43MB

The alkali hydrolysis experiments which seem to be important from the view point of the alteration mechanism using the following seven organic materials was performed as a part of the evaluation of the influence on the disposal of the organic materials contained in the TRU wastes. As a result of the alkali hydrolysis experiments (90$$^{circ}$$C and 91d), each organic materials became those of lower molecular weight. The degradation products were able to be detected in the solution. The organic materials seem to be degraded to the organic matters which were confirmed in this study in a long term of disposal. The degradation products were shown below. Therefore, the evaluation of the influence on the migration of radionuclides by degradation products becomes important in the future. (1)Cement additives of Naphthalenesulfonic acid and Ligninsulfonic acid ($$rightarrow$$ Naphthalenedisulfonic acid etc.) (2)Cement additives of polycarboxylic acid ($$rightarrow$$ Oligomer of distal methoxypoly ethylene glycol.) (3)Ethylenediamine-N,N,N',N'-tetraacetic acid disodium salt ($$rightarrow$$ Acetic acid desorped and cyclized organic matters from EDTA.) (4)Tributyl phosphate ($$rightarrow$$ Dibutyl phthalate, n-butanol) (5)Poly vinyl acetate ($$rightarrow$$ Acetic acid) (6)Nylon66 ($$rightarrow$$ Adipic acid, Hexamethylenediamine) (7)Cured epoxy resin ($$rightarrow$$ Glycerol poly glycidyl ether, Carboxylic acid)

Journal Articles

Chemical composition and digestibility of rice straw fermented by selected fungi

M.A.Malek*; Matsuhashi, Shimpei; Kume, Tamikazu

Int. J.Mushroom Sci., 2(2), p.27 - 32, 1998/00

no abstracts in English

Journal Articles

Effect of gamma irradiation on microorganisms and components in empty fruit bunch and palm press fibre of oil palm wastes

Kume, Tamikazu; Ito, Hitoshi; Ishigaki, Isao; M.L.Juri*; Z.Othman*; F.Ali*; H.H.Mutaat*; M.R.Awang*; A.S.Hashim*

Journal of the Science of Food and Agriculture, 52, p.147 - 157, 1990/00

 Times Cited Count:14 Percentile:66.51(Agriculture, Multidisciplinary)

no abstracts in English

Journal Articles

Journal Articles

The radiation-induced degradation of lignin in aqueous solutions

*;

Int.J.Appl.Radiat.Isot., 29(4-5), p.255 - 259, 1978/05

 Times Cited Count:3

no abstracts in English

5 (Records 1-5 displayed on this page)
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