- 更多网络例句与糠醛相关的网络例句 [注：此内容来源于网络，仅供参考]
-
At present, furfural is usually produced by one-stage process, which leads to insufficient utilization of raw material and low yield only around 60%.
目前，糠醛主要采用一步法生产，该法糠醛收率最高只有 60％，原料得不到充分利用，这是目前制约糠醛工业发展的主要因素。
-
A new recovery technology of solid waste was made which is from furfuryl alcohol production by furfural hydrogenization. When the solid waste is placed in a vacuum drying box, and is under lower negative pressure and at 130℃, the organic materials in solid waste can be distilled and then returned to the refining workshop to produce qualified furfuraldehyde and furfuryl alcohol. The remainder is mixed with soda ash and roasted in a reverberating furnace. The sodium chromate can be obtained by leaching. Rough cupric oxide is dissolved in nitric acid and cupric nitrate is obtained. A new catalyst was prepared by the above sodium chromate and cupric nitrate and used in furfuryl alcohol production.
将糠醛液相加氢生产糠醇产生的废渣置于真空干燥箱中，在较低的负压状态下保持130℃的温度，蒸馏回收废渣中的有机物，返回糠醇精制车间获得合格的糠醇与糠醛产品；剩余的固体废弃物与纯碱混合，在反射炉中焙烧，浸取获得铬酸钠水溶液；最后剩下的粗氧化铜溶于硝酸得到硝酸铜溶液；将铬酸钠溶液、硝酸铜溶液按一定比例混合，加入氨水搅拌，分离出的沉淀经传统方法焙烧活化、造粒制得新催化剂，回用于糠醛液相加氢生产糠醇。
-
The results showed that the conversion reaction of hexose into hydroxymethyl furfural was the primary cause of forming the furfurals, and the efficiency of pentose transforming into furfural was lower.
试验结果表明：己糖转化为羟甲基糠醛的反应是水解液中糠醛类物质产生的主要原因，而戊糖向糠醛的转化率较低。
-
This text overview domestic, make use of the bagasse to especially have results to show a 炭 with live manufacture, fiber, fuel, wood sugar, bran 醛, bran chloric acid and turn outside fatty, the birds 畜 animal feed and dirty water processing in the present condition, characteristics and development foreground of the metals ion adsorbent.
本文综述了国内、外利用甘蔗渣特有成份制作活性炭、纤维、燃料、木糖、糠醛、糠氯酸、化肥、禽畜饲料及污水处理中金属离子吸附剂的现状，特点及发展前景。
-
The results given by barbituric acid method were more accurate.
在杂质中甲基糠醛是糠醛的同系物，酮类和醛
-
A comparison of three chemical analytical methods-gravimetric method of barbituric acid, hydroxylamine hydrochloride method and bro-mide-bromate method-for determination of furfural content was studied.
测定糠醛含量的方法很多，日前同际标准化组织和各国的糠醛标准检验方法均采用化学法，成品糠醛内含有各种微量的有机杂质，据报道。
-
Catalytic Synthesis of Methyl Furoate by Peroxhydrogen and Sulphate Acid;2. Using hydrochloric acid as a cheap catalyst,perfume methyl furoate was synthesized from methanol and furoic acid prepared from furfural,and was characterized by GC,IR and 1H-NMR.
从糠醛出发，由制备的糠酸和甲醇反应，在盐酸催化下，合成了香料糠酸甲酯，并用IR、1HNMR、GC等进行了表征；探讨了包括高纯度糠酸的制备在内的反应影响因素，在醇酸物质的量之比为 5∶1、催化剂体积占甲醇体积 13。
-
Using hydrochloric acid as a cheap catalyst,perfume methyl furoate was synthesized from methanol and furoic acid prepared from furfural,and was characterized by GC,IR and 1H-NMR.
从糠醛出发，由制备的糠酸和甲醇反应，在盐酸催化下，合成了香料糠酸甲酯，并用IR、1HNMR、GC等进行了表征；探讨了包括高纯度糠酸的制备在内的反应影响因素，在醇酸物质的量之比为 5∶1、催化剂体积占甲醇体积 13.0 %、反应时间 3h的最佳工艺条件下，酯化收率为81 0 %，收率比硫酸法、某些固体超强酸法
-
Furoin was synthesized with furfural as raw material in the presence of Vitamin B1(VB1) as a catalyst.
以糠醛为原料，经维生素B1(VB1)催化合成糠偶姻。糠偶姻与不同的酰氯反应生成糠偶姻单酯。
-
Furoin was synthesized from furol with VB1 as the catalyst,which was then reacted with acetyl chloride, lauroyl chloride ,benzoyl chloride,α-furoyl chloride and 3-α-furyl acryloyl chloride,respectively;corresponding monoester compounds of furoin were synthesized in THF in the presence of sodium hydroxide under reflux.
以糠醛为基础原料，经维生素B1催化合成糠偶姻，再由糠偶姻分别和乙酰氯、月桂酰氯、苯甲酰氯、α-呋喃甲酰氯和3-α-呋喃烯丙酰氯反应，在NaOH/无水THF体系中，于水浴回流条件下合成了相对应的糠偶姻单酯类化合物。
- 更多网络解释与糠醛相关的网络解释 [注：此内容来源于网络，仅供参考]
-
furfural：糠醛
简介: 糠醛(Furfural)又名呋喃甲醛,以其为原料直接或间接衍生出的化工产品达1600多种,是精细化工领域一类较为重要的产品. 但在糠醛生产过程中产生大量的高浓度有机废水,对人体及生态环境造成巨大影响. 由于污染治理等环保问题未能完全解决,
-
Technical furfural：工业糠醛
工业糠醇试验方法 Technical furfurylalcohol test methods | 工业糠醛 Technical furfural | 工业糠醛试验方法 Technical furfural test methods
-
furfural grease：糠醛润滑润
furfural acetone resin 糠酮树脂 | furfural grease 糠醛润滑润 | furfural oxime 呋喃肟
-
furfuraldehyde：糠醛
但幼苗中不含蒿属香豆素而含绿原酸(水解后产生咖啡酸)及对羟基苯乙酮(4-Hydroxyacetophenone),全草含挥发油约0.6%,以花期含量最高,约达0.95%,其中含有:侧柏醇(Thujyl alcohol),正丁醛,糠醛(Furfuraldehyde),甲基庚酮(Methylheptanone),
-
furfuraldehyde：糠醛;呋喃醛
furfural 糠醛;呋喃醛 | furfuraldehyde 糠醛;呋喃醛 | fusion 熔化;合成;聚变
-
furaldehyde; furfural; furfuraldaldehyde; furfurol; oil of ants：糠醛
糠醇;呋喃甲醇 furancarbinol; furfuryl alcohol; furfuralcohol | 糠醛 furaldehyde; furfural; furfuraldaldehyde; furfurol; oil of ants | 糠醛树脂胶粘剂 furfural; resin adhesive
-
furfuryl resin：糠醛树脂
furfuryl alcohol 糠醇 | furfuryl resin 糠醛树脂 | furious cross-lamination 双重交错纹理
-
furfurol：糠醛
furfuran 呋喃 | furfurol 糠醛 | furfuryl alcohol 糠醛,呋喃甲醛
-
furfurol test：糠醛试验
furfural extraction ==> 糠醛萃取 | furfurol test ==> 糠醛试验 | furfuryl alcohol ==> 糠醇,呋喃甲醇
-
furfural fulfulaldehyde;furfurol：麸醛;糠醛
被有米糠状鳞片的 furfuraceous;furfurous | 麸醛;糠醛 furfural fulfulaldehyde;furfurol | 麸醛;麸糖;淀粉等加稀硫酸蒸馏所得的挥发油液 furfurol