New Technology for the Production of Sodium Hydroxide

氢氧化钠生产新技术

• 批准号: 9060067
• 负责人: J David Genders
• 金额: $ 5万
• 依托单位: The Electrosynthesis Company, Inc.
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-01-01 至 1991-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9060067&HistoricalAwards=false
• 关键词: New; Technology; Production; Sodium; Hydroxide

This Small Business Innovation Research (SBIR) Phase I project is in the general area of analytical and surface chemistry in the subfields of electrochemistry and inorganic synthesis. Caustic is produced in the USA to the extent of 36,500T/day, mainly by the electrolysis of brine. The anode product, chlorine, is under considerable pressure for environmental reasons. For example, sales are declining to the pulp and paper industry because of traces of dioxin formed in paper products. Also, ozone destroying carbon compounds like chlorofluorocarbons and methylchloroform are very likely to be replaced by non-chlorine containing substitutes. As a result there is considerable interest in new technologies to produce high purity caustic without chlorine production. The performance of some novel electrolytic cells for the manufacture of sodium hydroxide, without co-production of chlorine, will be investigated in the Phase I research work. The cells will use modern membranes and electrodes materials and will be designed to convert non-halogen sodium salts to high purity, aqueous sodium hydroxide by a technology which is both highly energy efficient and friendly to the environment. The process should be economically viable over a range of scales and be particularly suited to the on- site production of 5 to 40 sodium hydroxide streams free of impurities such as chloride ion.

该小型企业创新研究 (SBIR) 第一阶段项目属于电化学和无机合成子领域的分析和表面化学一般领域。 美国的苛性碱产量为 36,500 吨/天，主要通过盐水电解生产。 由于环境原因，阳极产物氯承受着相当大的压力。 例如，由于纸制品中形成微量二恶英，纸浆和造纸行业的销售额正在下降。 此外，破坏臭氧层的碳化合物如氯氟烃和甲基氯仿很可能被不含氯的替代品所取代。 因此，人们对在不生产氯的情况下生产高纯度苛性碱的新技术产生了极大的兴趣。 第一阶段的研究工作将研究一些用于制造氢氧化钠而不同时生产氯的新型电解池的性能。 这些电池将采用现代膜和电极材料，旨在通过高效节能且对环境友好的技术将非卤素钠盐转化为高纯度氢氧化钠水溶液。 该工艺在一定规模范围内应该是经济可行的，并且特别适合现场生产 5 至 40 份不含氯离子等杂质的氢氧化钠流。