胺钨盐的性质及其在制取亚微米级钨粉方面的应用

来源期刊：中南大学学报(自然科学版)1990年第6期

论文作者：邹志强 W．Schubert B．Lux

文章页码：622 - 631

关键词：钨粉； 氢还原/有机胺钨盐； 自还原性； 亚微米级钨粉制取

Key words：tungsten powder； H_2-reduction/organic amine tungstate； self-reductivity； submicron W-powder preparation

摘    要：本文着重研究了自还原性胺钨盐的性质及其氢还原,发现,将自还原与一般氢还原适当结合,可以高效率地制备比表面积大于20m²/g的极细、超细钨粉。对自还原的本性及该类钨盐在制取极细、超细钨粉方面的应用前景进行了讨论。

Abstract: This paper deals mainly with the preparation, certain properties and the hydrogen reduction of diamine and ethylenediamine tungstates. The effects of self-reductivity of such tungstates during hot decompostion on the W oxide powder reduction process has been studied. It is found that by combining the self-reductivity with common hydrogen reduction, fine W powders with BET surfaces＞20m²/g can be prepared. The essence of Selfreductivity is discussed and the possibility of the application of such tungstates to submicron W powder production is considered.