A process for producing thiourea dioxide and a process for...

Details A process for producing thiourea dioxide and a process for... A process for producing thiourea dioxide and a process for...

C - Chemistry, Metallurgy

07

C

C07C 335/04 (2006.01) C07C 381/14 (2006.01) D21C 9/10 (2006.01)

Patent

CA 2113642

There are disclosed a process for producing a thiourea dioxide fluid by mixing thiourea and a per-oxide, or thiourea, a peroxide and a reaction catalyst, or thiourea, a peroxide, a reaction catalyst and a chelating agent, in the absence or presence of pulp and a process for bleaching pulp by the use of the thiourea dioxide fluid produced by the above process economically advantageously with a small chemicals loss and by small consumption of energy

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