tungstic acid 中文意思是什麼
tungstic acid
解釋
鎢酸-
Technological practice of producing tungstic acid using waste catalyst containing tungsten
利用含鎢廢催化劑生產鎢酸工藝實踐 -
Industrial experience of producing tungstic acid using waste catalyst containing tungsten
利用含鎢廢催化劑生產鎢酸的工業實踐 -
In 1958, ganzhou concentration plant was established and started its production. after 1963, tungstic acid, apt, w powder, wc powder and cemented carbide could be produced too
1958年,贛州精選廠建成投產。 1963年以後,進一步發展到生產鎢酸、鎢酸鈉、仲鎢酸銨、鎢粉、碳化鎢粉、硬質合金等。 -
With phosphato - tungstic acid as catalyst and phosphoric acid as dehydrant, n - phenylmaleimide was prepared from aniline and maleic anhydride by two - step method. the yield was 88. 7 % and the purity was 98. 2 %
以順酐和苯胺為原料,磷鎢酸作催化劑,磷酸作脫水劑,採用兩步法制得n -苯基馬來酰亞胺,得到最佳反應工藝條件,產品收率為88 . 7 % ,純度為98 . 2 % (質量分數) 。
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