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A kind of more effective viscosifier can improve the viscosity of acid solution, reducing the mass transfer velocity of hydronium H+ towards the rocks surface, thereby decrease the filtrate loss of acid solution and the reaction rate between acid and salt, lengthen the distance of acid penetration.

向酸液中加入良好的稠化剂能提高酸液粘度,降低氢离子向岩石壁面的传质速度,因而降低酸液滤失和酸盐反应速率,增加了酸液的有效作用距离,提高了酸化效果。

The partial substitution of α-olefine sulfonate instead of alkylbenzene sulfonate and the production technology of α-olefine sulfonate were also described.

介绍近几年来大型磺化反应器和磺化装置的国产化及原有磺化装置的技术改造,α-烯基磺酸盐部分取代烷基苯磺酸盐及AOS生产技术,并概述了脂肪酸甲酯磺酸盐的产品开发、磺化产品的活性物干燥,以及其他磺化产品的开发等。

Trough long practise and research, the fracturing technology is getting perfecter and perfecter,but in contrast, the fracturing equipment is unsuitable,so the fracturing technology cannot be put into effect normally.

在长期的实践和研究中,压裂及酸化工艺日趋完善,相比之下,压裂及酸化设备与之很不相适应,严重影响了压裂及酸化工艺的正常实施。

We prepared the pyrethric acid II through four reactions: esterification, oxidation, decomposition, diesterification. And the original synthesis route of the pyrethric acidII was improved: the yield of oxidation of allyl rise through increasing the activity of Selenium dioxide; in the document, tert-butyl-trans -2, 2-dimethy1-3-(2"-methoxycarbony1-1"-propenyl)cyclopropanecarboxy late was synthesized from tert-butyl-trans-2,2-dimethyl-3-(2 -formyl-r -propenyl) cyclopropanecarboxylate with two steps, with low yield.

我们经过酯化,氧化,成双酯,热分解四步反应,成功地得到了第二菊酸,并改进了原第二菊酸的合成路线:通过改变二氧化硒的活性提高了烯丙甲基的氧化产率;将原路线中醛氧化成羧酸、羧酸酯化的两步反应改为醛和甲醇、二氧化锰等作用一步直接酯化的方法,减少了反应步骤,提高了总收率。

Isoamyl isovalerate was synthesized through esterification reaction by using isovaleric acid and isoamyl alcohol as raw materials and nano-H4SiW12O40/SiO2 as catalyst, the influencing factors in the reaction were studied, and the results showed that the esterification rate could reach 98.6 % under the conditions of the ratio of alcohol-acid 1.4∶1, the use level of catalyst 5 %, and the reaction time 1.5 h.

以纳米复合钨硅杂多酸为催化剂,异戊酸和异戊醇为原料,通过酯化反应合成苹果油,对酯化反应的影响因素进行了研究,结果表明,在醇酸物质的量比为1.4∶1,催化剂用量5%,反应时间1.5h的条件下,酯化率可达98.6%。

The method comprises the steps that the molybdenum bearing spent catalyst is roasted and comminuted, then the molybdenum bearing spent catalyst is leach and filter by adopting alkaline solution bearing ammonia, ammonium bicarbonate and oxyful, and the secondary roasting and leaching are performed to the solids after filtration, the twice leaching solution is acidified and the aluminum is precipitated out, then is acidified continuously to precipitate out the molybdenum in the form of molybdic acid, the molybdic acid is dissolved by using ammonia water further, the pH value is adjusted again to obtain ammonium molybdate deposition, and the ammonium molybdate product is obtained after dryness.

将含钼废催化剂进行焙烧、粉碎,然后采用含氨、碳酸氢铵和双氧水的碱性溶液浸取并过滤,过滤后的固体物进行二次焙烧和浸取,两次浸取液酸化沉淀出铝,然后继续酸化将钼以钼酸形式沉淀出来,钼酸进一步用氨水溶解,再次调节pH值获得钼酸铵沉淀,干燥后得到钼酸铵产品。

For TRO there are a little surfacatants whose effect are not good.In this paper,content of sulfonates and composition of alkyl are decided through right design ;under control reaction conditions different alkylbenzene sulfonates are synthesized;Polyreaction catalyst is developed .non-straight high carbon olefine are made through C9-C12 Polyreaction technolgy;clear composition alkylkenzene is sulfanated in falling-film reactor by SO,product can be adjusted,recipe of the surfacate can be used for super-low interfacialtension with Daqing oil -10-3-10-4mN/m,and stablity is good too.According to method issued by Daqing Develop and Explore Research institute,EOR is over 20% in natural core .

本文研究通过烷基苯磺酸盐组成的正确设计,确定了磺酸盐的当量范围和烷基碳数组成和分布;通过对烷基化条件控制,设计合成了不同碳数的直链和支链烷基苯及烷基二甲苯,并用于制备了相应的烷基苯磺酸盐;研制出了新型的烯烃叠合络合催化剂,采用C_9、C_(12)支链烯烃叠合工艺合成了更高碳数的支链烯烃,并进一步合成出相应的烷基苯和烷基二甲苯;以SO_3为磺化剂,通过对磺化条件的选择和控制,采用已知组成的烷基苯混合物进行膜式磺化反应,使合成工艺得以简化;所得磺酸盐组成确定并且可控,最终配方可与大庆原油形成超低界面张力,达10~3~10~(-4)mN/m数量级,且稳定性良好;以合成的烷基苯磺酸盐为主体形成了三元复合驱配方,室内驱油模拟实验表明,按照大庆研究院对复合驱体系活性剂的评价方法,在天然岩芯上的驱油效率在20%以上。

Erve growth factor can combine with its" receptor (one of tyrosine protein kinase receptor coded by proto - oncogene tyrosine kinase, TrkA), Causing the molecule of receptors to gather on the cell surface, and the tyrosine protein in cytoplasmic domain may be activated, three tyrosine base in the kinase domain of its" receptor and two tyrosine base at other domain be phosphated, thus, phosphated tyrosine receptor kinase became the bracket which absorb all kinds of connective proteins and kinases.

GF与其酪氨酸受体激酶受体(由原癌基因trk编码的一种酪氨酸蛋白激酶受体,TrkA)相结合,引起受体分子在细胞表面发生二聚体化,然后受体细胞内结构上酪氨酸活性被激活,使受体自身结构中位于激酶结构域的三个酪氨酸残基及在此结构域外的两个酪氨酸残基发生自身磷酸化,这样,磷酸化的酪氨酸受体激酶A便成为吸收各种连接蛋白质和酶的支架。

Introduce of actual acidification velocity(H~+ produced) for evaluating the acidifying effects of soil tested,only the stimulated acid rain with pH2.5 could lead to soil acidifying,however,acid rains with pH≥3.5 played a buffering role to soils tested,with the weakening of soil acidity.

引进土壤的实际酸化速率H产生+值衡量供试土壤的酸化,只有pH2.5的模拟酸雨淋溶促进了土壤的酸化,而pH≥3.5的模拟酸雨处理对土壤的酸化具有一定的缓冲作用,且土壤酸度减弱。

Two-component waterborne polyurethane paint composed of acrylic dispersion and hydrophilically-modified polyisocyanate has fast dry time, good adhesion, flexibility, impact resistance, but poor water and chemical-resistance. The dry time becomes shorter with the increase of glass transition temperature and the decrease of acid value; the gloss of the film decreases with the increases of hydroxyl value, acid value and Tg of emulsion polymer; higher Tg polymer leads to harder film.

将制得的丙烯酸分散体与亲水改性多异氰酸酯组分配制水性双组分聚氨酯涂料,发现漆膜表干和实干比较快,干燥时间随玻璃化温度升高而缩短,随酸值的增加而增加;附着力、柔韧性和冲击强度比较好;光泽随分散体羟值、酸值的增加和玻璃化温度升高而降低;硬度随玻璃化温度升高而升高;较高的酸值使涂料的耐化学品性和耐水性较差,羟值在100mgKOH/g时较好,而酸值应尽可能低。

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