浓硫酸

包头稀土精矿浓硫酸焙烧反应机理研究

Study on Decomposition Mechanism of Rare Earth Concentrate by Concentrated Sulfuric Acid

本论文采用共价改性（强氧化法）法，用浓硫酸和浓硝酸混酸对多壁碳纳米管改性，使碳纳米管表面上生成羧基。

Carboxyl groups generate on the surface of carbon nanotubes by using concentrated sulfuric acid and nitric acid .

将28克腈化物（II）与26毫升浓硫酸进行混合。

The nitrile ( II ) ( 28 g ) was mixed with 26 ml of concentrated sulfuric acid .

这种脂经浓硫酸/α萘酚染色反应证实为糖脂，记为糖脂x。

This lipid was determined to be a glycolipid , designated glycolipid_x ( Glyco_x ), by staining with α _naphthol and concentrated sulfuric acid .

当以乙酰硝酸酯作硝化剂、浓硫酸作溶剂时，2,4-二硝基苯胺硝化得到的主要产物是N，2,4,6-四硝基苯胺；

When it was treated with acetyl nitrate in concentrated sulfuric acid and glacial acetic acid respectively , N , 2,4,6-tetranitroaniline and N , 2,4-trinitroaniline were produced accordingly .

在一定条件下对FCC汽油分别用浓硫酸、高锰酸钾等溶液进行预处理。

Under the fixed conditions , the FCC gasoline was pretreated with concentrated sulfuric acid and potassium permanganate solutions .

本文以浓硫酸作为蓖麻油（CO）脱水剂，考察了各种因素对产品质量的影响，确定出最佳反应条件。催化剂用量大大减少，脱水蓖麻油（DCO）质量优于文献报导。

Sulphuric acid has been studied as catalyst for the dehydration of castor oil .

重点对温度、浓硫酸投加量、反应pH值等影响因素进行了研究，确立了硫酸肼回收工艺的正常运行参数。

The operational parameters of recovering sulfuric hydrazine is determined , and the important factors such as temperature , concentrated sulfuric acid addition and pH value in reaction are studied .

用浓硫酸、硼酸和磷酸通过一种简单的方法制备了一种新型固体酸，并应用IR和XRD对所合成物质进行了表征，确定了固体酸的组成、结构。

A novel solid acid was prepared from concentrated sulphuric , boric and phosphorous acid by a simple method and characterized by FTIR , and XRD .

活性成分的影响.用苯酚-浓硫酸法测定白花蛇舌草中多糖含量及用RP-HPLC测定白花蛇舌草中氨基酸的含量。

The content of polysaccharide was determined in phenol-concentrated sulfuric acid method , and the content of amino acid in RP-HPLC .

通过实验，确定了大气污染物SO2连续采样系统中洗气用浓硫酸的有效使用期。

We define effective lifetime of concentraed sulfuric acid used for washing off air in SO2 continuous sampling system of air pollution .

使用浓硫酸和浓硝酸的混合溶液将多壁碳纳米管进行功能化处理后与聚丙烯腈（PAN）进行共混，采用湿法成形技术制备出了多壁碳纳米管/PAN导电纤维。

The composite fiber was produced with concentrated sulfuric and concentrated nitric acids treated multi-walled carbon nanotubes ( MWNTs ) and polyacrylonitrile ( PAN ) via conventional wet spinning .

结果表明，最佳酯化条件为酯化温度为65℃，酯化时间为3h，浓硫酸用量是4%（W/W）。

The experimental results reveal the following optimal conditions : esterifying temperature 65 ℃, esterifying time 3h , and vitriol dosage 4 % .

以萘为单体、三聚甲醛为交联剂，可在对甲苯磺酸、浓硫酸或氯磺酸的催化下，在150～160℃下反应得到未交联的缩合多核芳香烃树脂（B－树脂）。

Uncross linked condensed polynuclear aromatics ( COPNA ) resins ( B resins ) were prepared at 150 ℃~ 160 ℃ in the presence of an acid catalyst such as p toluene sulfonic acid , sulfuric acid or chlorosulfonic acid .

CL-20在浓硫酸中的稳定性研究

Stability of CL-20 in Concentrated Sulfuric Acid

高温浓硫酸用XDS不锈钢板材的研究

Research of XDS stainless steel sheet for high-temperature concentrated sulphuric acid

试验确定反应的最优工艺条件为：反应温度70℃，浓硫酸用量为鱼油的9%（W/W），反应时间为6h。

The optimum reaction temperature is 70 ℃, sulfuric acid is 9 % of the quality of tuna oil , reaction time is 6 h.

用浓硫酸和醋酸酐与三元乙丙橡胶（EPDM）反应制备了磺化三元乙丙橡胶离聚物（S-EPDM）。

Sulfonated EPDM ionomers ( S-EPDM ) were prepared with concentrated sulfuric acid and acetic anhydride .

高温浓硫酸用DS-1高硅不锈钢板材的研制

Research of DS-1 high-silicon stainless steel sheet used in high-temperature concentrated sulphuric acid

作者以浓硫酸为浸取介质，在90～100℃下反应3h，将富锰渣中锰、铁、钙、镁等可溶性物质溶出，液相中的锰用来制备硫酸锰。

Used sulfuric acid ( 98 % ) to lixiviate rich-manganese slags at 90-100 ℃ for 3h to dissolve out Mn , Fe , Ca , Mg etc.

本文通过硬聚氯乙烯（R-PVC）浓硫酸、硬聚氯乙烯-乙醇、聚甲基丙烯酸甲酯（PMMA）-乙醇三体系，进行了应力松弛行为的研究。

The behaviour of the stress relaxation for the following three systems : PVC-concentrated sulphuric acid-PVC-ethanol and PMMA-ethanol have been studied im shis paper .

以浓硫酸为溶剂，氯磺酸为磺化剂对聚醚砜（PES）进行了磺化，制备了不同磺化度的磺化聚醚砜（SPES）。

Modification of polyethersulfone ( PES ) by sulfonation with chlorosulfonic acid as sulfonation agent and concentrated sulfuric acid as solvent was carried out .

耐腐蚀性浓硫酸外，PEEK不溶于任何溶剂和强酸、强碱，而且耐水解，具有很高的化学稳定性。

The corrosion resistance of sulfuric acid , PEEK insoluble in any solvent and strong acid , strong alkali , and resistance to hydrolysis , has the very high chemical stability .

DS-1在浓硫酸中的腐蚀速率为0.01-0.05mm／a。

The corrosion rate of DS-1 in high-temperature concentrated sulphuric acid is 0 . 01 - 0 . 05 mm / a.

采用光散射方法研究了聚对苯二甲酰对苯二胺（PPTA）浓硫酸溶液于不同凝固条件下成膜时得到的球晶和草席晶等结构。

The morphology of spherulite and mat-crystal structure in PPTA films coagulated from pure sulfuric acid solutions under different conditions has been studied by light scattering method .

以苯甲醛为交联剂，萘为单体，在浓硫酸催化下，反应得到未交联的缩合多核芳香烃树脂（COPNA树脂）。

COPNA resins were prepared using naphthalene as monomer and benzaldehyde as cross linking agent in the presence of strong sulfuric acid catalyst .

然后继续升温至800℃，反应0.5h，同时用浓硫酸吸收三氧化硫气体制取所需浓度的硫酸。

Then continue to heat up to 800 ℃, react 0.5h , and while absorb trioxide with concentrated sulfuric acid to produce the required concentration sulfuric acid .

LRSP-150型浓硫酸立式泵的研制及应用

Development and Application of LRSP-150 Vertical Concentrated Sulphuric Acid Pump

结果表明：采用浓硫酸对ZN-1阻尼材料进行表面处理，可以有效地改善其与硬铝的粘接效果；

The results show that the adhesion performance of ZN-1 damping materials can be improved through surface treatment with oil of vitriol .

俯仰臂形草经浓硫酸浸泡15min，平均发芽率在76%以上；

For B. decumbens , the seeds soaked into the solution of concentrated sulfuric acid for 15 minutes resulted in over 76 % of germination ;