Recycling of polyacetal for the production of polyoxymethylene dialkyl ethers

A process of recycling polyacetal containing from 8 to 100,000 carbon atoms for the production of a produced polyoxymethylene dialkyl ether of formula R—(OCH2)n—OR′, in which R and R′ independently represent a methyl group or an ethyl group and n is an integer greater than or equal to 1, the process comprising reacting an acid catalyst with a mixture comprising a polyacetal containing from 8 to 100,000 carbon atoms, a reactive polyoxymethylene dialkyl ether of formula R—(OCH2)k—OR′ in which R and R′ are as defined above and k is an integer greater than or equal to 1, and a solvent and removing by distillation some or all light compounds of formula R—(OCH2)n—OR′ with n=1 and optionally n=2.