二酸的

The invention relates to a preparation process for synthesizing polyethylene terephthalate 1, 3- terephthalate catalyst, which comprises adding titanic acid ester, germanium compounds and cobalt compound into liquid dispersed phase of organic solution, wherein the total weight concentration is 4-10%, and preparing the catalyst through mechanical stirring or ultrasonic wave mixed ligand for 10-60 minutes in 0-120 DEG C, wherein the adding content of titanic acid ester, germanium compounds and cobalt compound are respectively 200-500ppm, 50-300ppm and 100-400ppm of reaction monomer mass of terephthalic acid or dimethyl terephthalate.

本发明涉及一种合成聚对苯二甲酸1，3-丙二醇酯催化剂的制备方法，将钛酸酯、锗化合物和钴化合物加入到有机溶剂的液体分散相中，总重量浓度为4～10％，在0-120℃通过机械搅拌或超声波混配10-60min制得；钛酸酯、锗化合物和钴化合物加入量分别是对苯二甲酸或对苯二甲酸二甲酯反应单体质量的200-500ppm、50-300ppm、100-400ppm；用此催化剂制备PTT产品，酯化和缩聚反应时间相对于单独使用钛酸四丁酯缩短了30-60min，产品特性粘数0.70-1.05dL/g，色相b值在2-6之间，切片可用于加工新型合成纤维及工程塑料产品。

The possible pathway of ABAS degraded by Zoogloea HP3 was that ABAS was first cleaved to produce o-phthalic acid and products. The former was further degraded and the composites of the latter were 2-amino-3-hydroxyl-5bromobenzenic sulfonic sodium and 2, 3-dihydroxyl-5-bromobenzenic sulfonic sodium.

动胶菌HP3作用下溴胺酸可能的降解途径为蒽醌环开裂生成中间产物邻苯二甲酸，邻苯二甲酸被进一步降解；溴胺酸降解后的最终产物为2-氨基-3-羟基-5-溴苯磺酸钠和2，3-二羟基-5-溴苯磺酸钠。

The copolycondensation type polyamic acid was synthesized by using 3,3', 4,4'-Benzophenonetetracarboxylic dianhydride as the dianhydride monomer, 4,4'-Diamino diphenylmethane and 4,4'-Oxydianiline as the diamine monomer under microwave irradiation in Dimethylformamide.

在微波辐射条件下，采用3，3'，4，4'-二苯酮四羧酸二酐、4，4'-二氨基二苯甲烷和4，4'-二氨基二苯醚为单体，N，N'-二甲基甲酰胺为溶剂，低温合成一种共缩聚聚酰亚胺的前驱体聚酰胺酸，化学亚胺化脱水环化生成BTDA型共缩聚聚酰亚胺。

spectrophotometric method with phenol disulfonic acid ; ultraviolet spectrophotometer ; nitrate nitrogen ; comparison

本文通过对常用的酚二磺酸光度法和紫外分光光度法进行实验比对，同时调查云南省内两种分析方法考核的情况，从而找出两种方法的优缺点，供分析人员在实践中借鉴。l原理1.1酚二磺酸光度法测定的原理方法依据：GB7480一87《水质硝酸盐氮的测定酚二磺酸分光光度法》。用浓硫酸与苯酚作用生成酚二磺酸

The inhibitory potency of geranyl gallate is as about six times as that of lauryl gallate on mushroom tyrosinase. Lauryl gallate was determined to be an uncompetitive inhibitor while geranyl gallate belongs to be a mixed-type inhibitor.

没食子酸香叶酯对蘑菇酪氨酸酶的抑制作用比没食子酸十二烷基酯更强，没食子酸十二烷基酯表现为反竞争性抑制类型，而没食子酸香叶酯表现为混合型抑制类型。

Unsaturated fatty acids including linoleic acid、γ-linolenic acid、 dihomo-γ-linolenic acid、 arachidonic acid and eicosapentaenoic acid have played important roles in prevention and treatment of heart disease and high blood pressure、 in the inflammatory area (for example, treatment of asthma、 arthritis and psoriasis) and for some cancer treatment Natural sources of UFAs are animal and plant, such as EPA in fish oils, arachidonic acid in porcine liver and y -linolenic acid in Oenothera biennis L..

不饱和脂肪酸包括亚油酸、γ-亚麻酸、双高γ-亚麻酸、花生四烯酸和二十碳五烯酸等在内对心脏疾病、高血压、炎症(如哮喘、关节炎和牛皮藓)和某些癌症的预防和治疗均有显著效果。不饱和脂肪酸的自然来源主要是动植物，如二十碳五烯酸存在于深海鱼油，花生四烯酸存在于猪肝而γ-亚麻酸多来源于月见草等植物种籽。

Results: Nine compounds were obtained from the ethyl acetate fraction of C. speciosa and were identified as methyl chlorogenate, 5-O-cafeoyl quinic acid butyl ester, quinic acid butyl ester, 5-hydroxymethyl-furan-2-carbaldehyde, triacontanoic acid,-epicatichin, 7,8-dihydroxy-coumanrin, protocatechuic acid ethyl ester, and protocatechuic acid.

结果：从皱皮木瓜的乙酸乙酯萃取部位分离鉴定了9种化合物，分别为绿原酸甲酯，5-O-咖啡酰基－奎宁酸丁酯，奎宁酸丁酯，5-羟甲基－2-糠醛，三十烷酸，-表儿茶素，7，8-二羟基香豆素，3，4-二羟基苯甲酸乙酯，原儿茶酸。

Polyols can be divided into latex polyol and dispersion polyolaccording to the way of preparation. In this paper, acrylic latex polyol and acrylic dispersionpolyol were synthesized respectively. One kind waterborne polyisocyanate, which was waterbornehexamethylenediisocyanate trimer, was obtained by hydrophilic modification. Andisophorone diisocyanate trimer (T1890E), which can formulate into 2K-WPU coatings withpolyols, was selected from the unmodified polyisocyanates.

本文合成了两种羟基组分：丙烯酸乳胶多元醇和丙烯酸分散体多元醇，亲水改性得到了一种水性多异氰酸酯组分：水性六亚甲基二异氰酸酯三聚体，同时在未改性的多异氰酸酯组分中遴选了一种多异氰酸酯：异佛尔酮二异氰酸酯三聚体(T1890E)，可用来组成双组分水性聚氨酯涂料。

Treatments contained skim milk and 50 g fat from high–oleic acid safflower and canola oils (monounsaturated fatty acid; MUFA), MUFA + 3.5 g α-linolenic acid (ALA; MUFA + ALA) from high-ALA canola oil, or MUFA + 4.0 g both eicosapentaenoic acid and docosahexaenoic acid (DHA; MUFA + EPA/DHA) from sardine oil.

处理因素为：脱脂奶及50g脂肪（来源于含高油酸的草红花和芸苔油）（单不饱和脂肪酸，MUFA组）， MUFA＋3.5g γ－亚麻酸（来源于高γ－亚麻酸含量的芸苔油），MUFA＋4.0g二十碳五烯酸和二十二碳六烯酸（MUFA+EPA/DHA组）。

The company developeddmmer acid synthesis technology in Sichuan bentonite mainly catalyst , the product quality and finished product rate both were much better than the internal industry(dimmer acid color:≤7#, viscosity : between 5000~10000 cp/250C adjustable , finished product rate :≥10% internal industry); a series products project : dimer acid 、 monomer acid 、 benzene dissolved polyamide resin 、 alcohol dissolved polyamine resin and polyamine hotmelt adhesive , let enterprises in the fierce market competition , flexible adjustment product structure , to cope with the market with facility .

本公司自行研发出的以四川膨润土为主催化剂的二聚酸合成技术，在产品质量和产品收率上均大大优于国内同行业产品（二聚酸色泽≤7#，粘度在5000～10000cp/250C之间可调，收率≥10%同行业。）：二聚酸、单体酸、苯溶聚酰胺树脂、醇溶聚酰胺树脂、液体聚酰胺树脂及聚酰胺热溶胶。

By using competitive adsorption of activated carbom to remove unfavorable influence of carbon in carbonaceous gold concentrate on leaching process, the leaching rate of gold concentrate can be improved to 88% as compared with 10%by direct cyanidation.

本文论述了利用活性炭竞争吸附作用，消除含炭金精矿中炭在浸出过程中的影响，使金精矿的浸出率可由直接氰化的10％提高到88％。

The only thing you're ever gonna be king of is King of the Stupids!

你只配做傻瓜的国王！