Preparation method of solid acrylamidealkyl sulfon

专利名称：Preparation method of solid acrylamidealkyl

sulfonate

发明人：Longyuan Mei申请号：US14765315申请日：20140124公开号：US0958B2公开日：20170307

摘要：The present invention provides a method for preparing a solid acrylamide alkylsulfonate. Said method comprises: reacting 2-acrylamido-2-methylpropanesulfonic acidand analogs thereof with an alkaline substance in a solvent. The 2-acrylamido-2-methylpropanesulfonic acid and the analogs thereof and the alkaline substance aresignificant excess with respect to the solvent, so that the amount of the resultingacrylamido alkyl sulfonate exceeds the solubility under the reaction condition. Theacrylamido alkyl sulfonate can be continuously generated and directly massively

precipitated, and the precipitated solid product, i.e. the product, is collected. The methodof the present invention can greatly improve production efficiency of products, save time,reduce cost, and easy to operate by leaving out the re-crystallization step and the like inthe prior art.

申请人：Longyi Mei

地址：Nanjing, Jiangsu Province CN

国籍：CN

代理机构：Kilpatrick Townsend & Stockton LLP

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