查询词典 catalyst

Therefrom; heating said waste edible oil from which solid materials have been removed to a predetermined temperature, thereby removing moisture and materials of odor contained in the waste edible oil therefrom by evaporation; dissolving in alcohol a catalyst containing at least one type or more types of alkaline material selected from a group comprised of at least potassium hydroxide, potassium carbonate and potassium alcoholate, thereby preparing an alcoholic solution containing the catalyst; mixing said waste edible oil from which said solid materials, moisture and materials of odor have been removed with said alcoholic solution containing the catalyst and stirring the waste edible oil and alcoholic solution, thereby accelerating a catalytic reaction between the waste edible oil and the alcohol and obtaining a reaction product between the waste edible oil and the alcohol; separating said reaction product into a light solution and a heavy solution; mixing the light solution obtained in the separation step with a solid absorbent, thereby impurities such as residual catalyst, odor material, moisture contained in the light solution being absorbed by the solid absorbent; and separating and removing said solid absorbent from a mixture of the solid absorbent having absorbed the impurities and the light solution.

完成前述对象，根据这项发明的特点是获得的柴油燃油从废油脂透过几个步骤：去除固体材料包含在一个废油脂倾倒，从餐厅，食品厂，民政等因此；暖气说，废油脂从哪个固体材料已被调离到一个预定的温度，从而消除了水分和材料的气味，载于废油脂因此由蒸发；溶解在酒精的催化剂至少含有一种或更多类型的碱性材料选定由一组组成的至少氢氧化钾，碳酸钾和钾，醇，从而准备一醇溶液中含有催化剂；混合说，废油脂从哪个说，固体材料，含水率和材料的气味已被剔除与说，酒精性解决方案载有催化剂和搅拌废物食用油及含酒精的解决办法，从而加速催化反应之间的废油脂及酒精和获得反应产物之间的废油脂及酒精；分开说，反应产物成为一个轻型的解决方案和沉重的解决方案；混合轻解决方案，获得了在分离一步一个坚实的吸水性，从而杂质，如残留的催化剂，气味的物质，水分，载于轻解决方案，被吸收的固体吸收剂；分离和消除说，固体吸附剂从混合物对固体吸收剂吸收了杂质和轻便的解决办法。

To study the performance of inorganic composite catalyst for the SPC oxidation of p-methyl anisole, Cu2-Co2-KBr is used as catalyst of sodium percarbonate oxidation for p-methyl anisole synthesized by paracresol methylating. Effect of reaction conditions, such as the factors of catalyst composition, catalyst quantity, solvent, reaction temperature and time on oxidation of p-methyl anisole, is investigated.

研究了无机复合催化剂催化SPC氧化对甲基苯甲醚的反应性能：以Cu2-Co2-KBr为催化剂，利用过碳酸钠氧化对甲酚甲基化产物对甲基苯甲醚，系统研究了催化剂组成比例、催化剂用量、溶剂、反应温度、反应时间等因素对反应的影响。

The effects of catalyst, catalyst promoter, ratio and amount of catalyst and catalyst promoter, temperature, reaction time and pressure on the selectivity and yield of benzaldehyde have been investigated.

重点考察了催化剂种类、助催化剂种类、催化剂和助催化剂的配比和用量、反应温度、反应时间和反应压强等因素对苯甲醛的选择性和收率的影响。

A dimeric catalyst is formed from titanium main catalyst and alkylauminium cocatalyst and the copolymerization catalyst is formed from metallocene catalyst and corespondent cocatalyst, and the above-mentioned both catalysts are formed into the invented double-function catalytic system which can directly make ethylene implement dimerization in same polymerization system, and at the same time, produce copolymerization reaction to form linear low-density polyethylene.

一种用于由乙烯合成线性低密度聚乙烯的双功能催化体系，二聚催化剂由钛系主催化剂和烷基铝助催化剂组成，共聚催化剂由茂金属催化剂和相应的助催化剂组成，这两种催化剂组成的双功能催化体系，可在同一聚合体系中，直接使乙烯二聚的同时就地发生共聚反应，生成线性低密度聚乙烯。

Four kinds of arrangement of catalyst support in catalytic distillation column are introduced, they are catalyst in the downcomer of plate column,catalyst on the tray and catalyst combined with random packing or structured packing respectively, and their advantages and disadvantages are also analyse

介绍了催化蒸馏塔中催化剂的装填结构，即催化剂装在板式蒸馏塔降液管中、装在板式塔塔板上、与散装填料相结合及与规整填料相结合，并对这些装填方式的优缺点进行了分

The action characteristics of the powder catalyst and slice catalyst used in the synthesis of diamond were analysed and the monatomic catalyst was compared to the alloy catalyst according to the experiments.

分析了粉状和片状触媒在合成金刚石时的作用特点，通过"剥皮"试验确认金刚石成核过程中出现熔媒聚集现象。

Expansion bed process can be used to sulfurize pyrolysis gasoline two-stage hydrofining catalyst, regenerated wax hydrofining catalyst, prefining catalyst for hydrocraking, and diesel oil hydrofining catalyst.

结果表明：膨胀床器外预硫化工艺，优于CS2器内硫化工艺，对裂解汽油二段加氢精制催化剂、石蜡加氢再生剂、加氢裂化预精制剂和柴油加氢精制剂均具有较好的硫化效果。

This thesis makes up the direction for Cu-Zn-Al-O catalyst, explores the perparation method and technological conditions、the reduction method and technological conditions of Cu-Zn-Al-O catalyst, investigates Cu-Zn-Al-O catalyst activity, and studies the kinetics of γButyrolactone synthesis reaction by the liquid phase dehydrocyclization from 1, 4-Butanediol on Cu-Zn-Al-O catalyst in the batch reactor.

研究了Cu-Zn-Al-O催化剂的配方、制备方法和工艺条件、活化方式和工艺条件，考察了催化剂的活性，并在全混釜反应器中研究了1，4—丁二醇在Cu-Zn-Al-O催化剂上液相脱氢环化合成γ—丁内酯的反应动力学特性。

The preparation method is characterized in that:(1) at minus 10 DEG C to 10 DEG C, a chloroauric acid solution with a certain concentration is added into a nano-Pt/C catalyst by ultrasonic or stirring mixture and the atomic ratio of Pt to Au is controlled between 18:1 and 5:1;(2) a small amount of monohydric alcohol or dihydric alcohol or trihydric alcohol of C1-C3 is added and is stirred at minus 10 DEG C to 10 DEG C for 10 min to 5h, so as to prepare the carbon-loading Pt-Au bimetallic nano electro-catalyst;(3) if necessary, the catalyst obtained by the step (2) is treated for 0.5 to 4h at high temperature ranging from 100 DEG C to 700 DEG C in the inert or reducing atmosphere, so as to adjust and control the grain size of the Pt-Au bimetallic nano electro-catalyst.

本发明涉及了一种高稳定性碳载Pt-Au双金属纳米电催化剂的制备方法，其特征在于：(1)在-10～10℃中，将一定浓度氯金酸溶液加入到纳米Pt/C催化剂中经超声或搅拌混合，控制Pt∶Au的原子比为18∶1-5∶1；(2)添加少量C 1 -C 3 的一元、二元或三元醇类，在-10～10℃下搅拌10min-5h，制备了碳载铂金双金属纳米电催化剂；(3)视需要，可将步骤(2)得到的催化剂在惰性气氛或还原气氛中经100～700℃高温处理0.5-4h，可调控Pt-Au/C双金属纳米催化剂的粒径。

And on the basis of mono-factor test, using COD decreasing rate and decolour rate as targets, six factors affecting catalytic effect were selected to proceed L9(34) orthogonal experiments. The conclusion of primary and secondary factors was drawn and the turn was : kind of catalyst-amount of catalyst-pH value-temperature-amount of H2O2-amount of air . The optimization were determined to be : initial pH value : 5.5 ; temperatare : 90 C; amount of H2O2: lml/400ml waste water ; kind of catalyst: AC3 ; inciting small amount of air ; amount of catalyst: 125g activated carbon to 500g stone .

并在单因素试验的基础上，以废液COD去除率和脱色率为指标，选择废液初始pH值、反应温度、启动剂用量、催化剂类型、鼓空气量、催化剂加入量为因素，进行L_9(3~4)正交试验，确定影响因素因素的主次关系为：催化剂类型→催化剂加入量→废液初始pH值→反应温度→启动剂量→鼓空气量；最佳处理技术条件为：废液初始pH5.5；反应温度90℃；启动剂量1ml／400ml废液；AC3型催化剂；鼓小流量空气；炭石比125g／500g。

In the negative and interrogative forms, of course, this is identical to the non-emphatic forms.

。但是，在否定句或疑问句里，这种带有"do"的方法表达的效果却没有什么强调的意思。

Go down on one's knees;kneel down

屈膝跪下。。。下跪祈祷