A method for the purification of vanillin hold strength raw materials, in particular solution means extracts of oxidized residues or sulphite waste liquors

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  机译： 亚硫酸废液氢氧化钠溶液同时回收的香兰素分离方法

• 4. Method and device for the utilization of the in the combustion of waste liquors or distillation residues of the sodium hydroxide - and sulphite cellulose pulp digestion warmth generated during the evaporation of such waste liquors [P] . 德国专利： DE1054825B . 1959-04-09

  机译： 在废液或氢氧化钠的蒸馏残渣或亚硫酸纤维素浆粕的蒸发过程中产生的消化液的燃烧中利用的方法和装置

• 5. Method of producing vanillin from waste sulphite liquor [P] . 美国专利： US2099014A . 1937-11-16

  机译： 用亚硫酸废液生产香兰素的方法

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