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- Keywords diisopropyl benzene;transalkylation;supported heteropoly tungstic acid; 二異丙苯;烷基轉移;負載雜多鎢酸;
- Synthesis of dimethyfumarate( DMF) was studied with easterification of fumaric acid and methanol catalyzed by supported phospho tungstic acid catalyst( PW12). 以富馬酸和甲醇為原料,用滑石分子篩固載磷鎢酸催化合成富馬酸二甲酯。
- 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(chǎng)建成投產(chǎn)。1963年以后，進(jìn)一步發(fā)展到生產(chǎn)鎢酸、鎢酸鈉、仲鎢酸銨、鎢粉、碳化鎢粉、硬質(zhì)合金等。
- This paper introduces the digestion technology of mechanical activation in lieu of that of alkali boiling for manufacturing tungstic acid. 本文介紹在復鹽法生產(chǎn)鎢酸中用機械活化浸取工藝代替堿煮浸取工藝的新方法。
- The WO3 electrochromic film prepared from this doped four- member tungstic acid sol had excellent performance and uniformity. 由該配方鎢酸溶膠制的WO3電致變色薄膜材料的成膜均勻，性能優(yōu)良。
- Monodispersed tungstic acid nanoparticles with an average diameter of 20 nm were prepared by a ultra-violet light irradiation of oxotungsten-citrate complex aqueous solution. 以磷鎢酸為光催化劑,在紫外燈照射下,對甲基橙溶液進(jìn)行光催化降解,考察了幾種陰陽(yáng)離子對磷鎢酸光催化降解甲基橙溶液的影響。
- A salt of tungstic acid. 鎢酸鹽鎢酸的鹽
- We are the mainly exporter of Tungstic acid in China, and the products enjoys the preferential treatment of “Quality Products without Inspection” offered by OSAKA Co., Ltd and JCQA Co., Ltd. in Japan. 公司生產(chǎn)的“石雁”牌仲鎢酸銨、鎢酸等產(chǎn)品獲得“省部?jì)?yōu)級產(chǎn)品”、“福建省名牌產(chǎn)品”等稱(chēng)號，鎢酸產(chǎn)品在國內是出口主要供貨單位，享受日本 OSAKA 公司JCQA 公司“質(zhì)量免檢”待遇。
- Nitropyridine-N-oxide was synthesized with pyridine as original reactant through N-oxidation and nitration reactions, by using water as medium, tungstic acid and sulfuric acid as catalysts. 在N-氧化反應中,因用水作為反應介質(zhì),鎢酸和硫酸為催化劑,不僅降低了反應成本,減少了環(huán)境污染,而且N-氧化吡啶的產(chǎn)率較高為96。
- Catalytic synthesis of glutaraldehyde with tungstic acid 鎢酸均相催化法合成戊二醛
- Keywords molybdic acid;tungstic acid;tungstates;ultraviolet spectroscopy.; 鉬酸;鎢酸;鎢酸鹽;紫外光譜學(xué);
- He gave me a taste of his acid wit. 他讓我嘗到了他敏銳尖刻之機智的滋味。
- Acid irritates the stomach lining. 酸能刺激胃黏膜。
- Keywords tungstic acid;monodisperse;nanoparticles;UV-irradiation method; 鎢酸;單分散;納米顆粒;紫外輻照法;
- Acid had pitted the surface of the silver. 酸把銀器的表面腐蝕了。
- Keywords phosphato tungstic acid;p hydroxybenzoale;catalysis;esterification; 磷鎢酸;對羥基苯甲酸酯;催化;酯化;
- I am doing an experiment of neutralizing acid. 我在做一個(gè)中和酸的實(shí)驗。
- Can Jones beat Smith? That's the acid test. 瓊斯能擊敗史密斯嗎？那是個(gè)嚴峻的考驗。
- A salt or an ester of boric acid. 硼酸鹽一種硼酸鹽或硼酸酯
- She dropped acid in high school. 她高中時(shí)代服迷幻藥。
