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1. 发明授权

US4085000A Method of recovering tall-oil soap from kraft black liquor 失效
标题翻译：从牛皮纸黑液中回收妥尔油皂的方法
公开(公告)号：US4085000A
公开(公告)日：1978-04-18
申请号：US759070
申请日：1977-01-13
申请人： Joseph V. Otrhalek , Gilbert Stephen Gomes , Gunther Hans Elfers
发明人： Joseph V. Otrhalek , Gilbert Stephen Gomes , Gunther Hans Elfers
IPC分类号： C11B13/02 , C11D15/04 , D21C11/00
CPC分类号： D21C11/0007 , C11B13/02 , C11D15/04 , Y02W30/74
摘要： As a tall-oil-soap skimming aid, there is added to black liquor resulting from the pulping of coniferous trees a terpolymer of (a) an alpha-beta-unsaturated acid, (2) an alkylate of an alpha-beta-unsaturated acid, and (3) allyl alcohol. The acid contains 3 to 4 carbon atoms and comprises about 60 to about 88 percent by weight of the terpolymer. The alkylate comprises about 6 to 28 parts by weight of the terpolymer, being an ester of the abovementioned acids, the ester having an alkyl portion containing 1 to 18 carbon atoms. Allyl-alcohol units are present in the terpolymer to an extent of 4.5 to 20 weight percent. The terpolymer can be produced by free-radical polymerization in accordance with the customary procedures. With the use of such a copolymer, the proportion of tall oil recovered from black liquor is very substantially increased.
摘要翻译：作为高油皂撇渣助剂，添加了由针叶树制浆造成的（a）α-β-不饱和酸的三元共聚物，（2）α-β-不饱和酸的烷基化物，和（3）烯丙醇。该酸含有3至4个碳原子，并且占三元共聚物的约60至约88重量％。烷基化物包含约6至28重量份的三元共聚物，即上述酸的酯，所述酯具有含有1至18个碳原子的烷基部分。烯丙醇单元在三元共聚物中的存在量为4.5至20重量％。三元共聚物可以根据常规方法通过自由基聚合制备。通过使用这种共聚物，从黑液中回收的妥尔油的比例大大增加。

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