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     This article introduces the patent search of esp@cenet and DEPATISnet,and then analyses the searching results of two data-base.
     介绍了欧洲esp@cenet网络数据库与德国专利商标局DEPATISnet数据库的专利检索情况 ,并对两个数据库的多种检索方式所得到的结果进行了比较分析
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The title compounds are formed by the reaction of an o-diphenol group with an antimony atom and have,according to Causse,the characteristic■ linkage.Close observations made on these compounds revealed certain mistakes that had slipped into the literature.(1)Not as the conclusion drawn by Causse,only a few such antimonyl compounds(those from water soluble o-diphenols)may have the hydroxyl group on the antimony atom replaced by chlorine upon treatment with hydrochloric acid.We were unable to repeat the experiments...

The title compounds are formed by the reaction of an o-diphenol group with an antimony atom and have,according to Causse,the characteristic■ linkage.Close observations made on these compounds revealed certain mistakes that had slipped into the literature.(1)Not as the conclusion drawn by Causse,only a few such antimonyl compounds(those from water soluble o-diphenols)may have the hydroxyl group on the antimony atom replaced by chlorine upon treatment with hydrochloric acid.We were unable to repeat the experiments of Causse on such a conversion for antimonyl gallic acid and antimonyl methyl gallate.(2)The antimonydioxy linkage is unstable toward hydrochloric acid,especially more concentrated ones.All compounds having such a group may be converted back into the original o-diphonol by hydrochloric acid.This observation is contrary to those recorded by Christianson and Hunter.(3)The same linkage is also unstable toward alkali,which is also contrary to the observations made by Christiansen and Causse.(4)Nevertheless,all such antimonyl compounds may still be recrystallized for purification from hydrochloric acid within limits of concentrations which vary with the compound in question.If the acid is much diluted,the compound is normally insoluble,but if it is more concentrated,it is liable to effect complete hydrolysis.The concentration suitable for the recrystallization is somewhere between these two limits.Generally,for compounds prepared from water insoluble o-diphenols the range of acid concentration is very narrow whereas for those from water soluble ones,though the range is much wider,the percentage of the recovery from recrystallization,as shown by antimonyl catechol and antimonyl pyrogallol with constant 15 minutes boiling,decreases with the concentration of the acid used. It is experimentally possible in the gallic acid series to bring the value of antimony content closer to that required theoretically by the recrystallization process.(5)It has been found that the aeetoxyl group attached to the ring is completely hydrolyzed to give a phenolic group during the process of recrystallization.in the gallic acid series,the carboxylic ester or amide group may practically survive the hydrolytic effect though a minute decomposition may be detected by the color test with 5% sodium bicarbonate.(6)1-Acetylpyrogallol has been prepared according to the German patent and converted into its antimonyl derivative by means of antimony trichloride in absolute alcohol.Thereby the original acetylpyrogallol must contain 1-acetylated compound,if it is not wholly this.The position of the acetyl group was not montioned in the original report.(7)One 1:1 antimonyl compound has been prepared by the action of tartar emetic or sodium antimonyI tartrate on 3-acetylgallic acid.This confirms the structure for the gallic acid derivative as proposed by Lesser and Gad on the solo ground of the color reaction with ferric chloride.This is,however,contrary to the statement made by Christiansen that if the hydrogen atom of one of the hydroxyl groups in gallic acid is replaced by an organic residue,the phenolic compound will no longer react with sodium antimonyl tartrate to give an antimony derivative.(8)Contrary to the statements by Causse and by Christiansen,catechol has been found to yield antimonyl derivative by tartar emetic in a more concentrated solution.The failure to give a precipitate in a more diluted solution is ascribed to the solubilizing effect of the acid potassium tartrate formed in the reaction.From such a solution the antimonyl catechol may also be precipitated by means of adding sodium chloride.

对于含■Sb-OH 基团的1:1鄰二酚型氧锑化合物作了性能上的观察,并尝试利用这类化合物以作分离或证明鄰二酚类:(1)惟有个别的少数这类锑化合物(母体水溶性的),其锑上的羟基能经盐酸处理而为氯原子所取代,故不能作为普遍的事实,如 Causse 所肯定者。(2)酚型锑二氧键遇一定浓度以上的盐酸则显不安定。每一含这基团的氧锑化合物都能经盐酸处理而得回原来的鄰二酚,与一般认为对盐酸稳定之说不同(Christianson及 Hunter)。(3)酚型锑二氧键对硷也不稳定,与 Causse 及 Christians(?)n 的结果亦不同。(4)这类氧锑化合物仍一般都能为一定浓度的盐酸重结晶而达到纯化,惟分子中不能兼含有乙酰化酚基,因其能完全水解而脱去乙酰基,至酯基或酰胺基则大致无碍,虽然各该基团有些许水解。(5)曾从按照一德国专利所获得的产物中,分离出1-乙酰焦没食子酚锑,从而说明在该产物中至少含有1-乙酰焦没食子酚。(6)以吐酒石或酒石酸锑钠制得3-乙酰没食子酸的氧锑化合物,从而证实了 Lesser与 Gad 所拟的乙酰基位置,并且证明 Christiansen 的结论不确。(7)儿茶酚能与吐酒石成锑化合...

对于含■Sb-OH 基团的1:1鄰二酚型氧锑化合物作了性能上的观察,并尝试利用这类化合物以作分离或证明鄰二酚类:(1)惟有个别的少数这类锑化合物(母体水溶性的),其锑上的羟基能经盐酸处理而为氯原子所取代,故不能作为普遍的事实,如 Causse 所肯定者。(2)酚型锑二氧键遇一定浓度以上的盐酸则显不安定。每一含这基团的氧锑化合物都能经盐酸处理而得回原来的鄰二酚,与一般认为对盐酸稳定之说不同(Christianson及 Hunter)。(3)酚型锑二氧键对硷也不稳定,与 Causse 及 Christians(?)n 的结果亦不同。(4)这类氧锑化合物仍一般都能为一定浓度的盐酸重结晶而达到纯化,惟分子中不能兼含有乙酰化酚基,因其能完全水解而脱去乙酰基,至酯基或酰胺基则大致无碍,虽然各该基团有些许水解。(5)曾从按照一德国专利所获得的产物中,分离出1-乙酰焦没食子酚锑,从而说明在该产物中至少含有1-乙酰焦没食子酚。(6)以吐酒石或酒石酸锑钠制得3-乙酰没食子酸的氧锑化合物,从而证实了 Lesser与 Gad 所拟的乙酰基位置,并且证明 Christiansen 的结论不确。(7)儿茶酚能与吐酒石成锑化合物,至其所以不能在较稀的水溶液中析出,乃受反应产品酸性酒石酸钾的溶解影响,若加以食盐,亦能析出。

This paper deals with the practice of production and management linking with value engine-ering principle on the hot galvanizing line at Wuhan Iron and Steel Co.. Based on the know-how introduced from West Germany and the survey extented to the client three ways as weresought out to reduce the cost of galvanized strips, (1) Change of steel grade, reasonably cho-osing B1F nstead of 08F or 08Al; (2) determination and close control of reasonable thicknessof Zn coating; (3) adoption of production technology according...

This paper deals with the practice of production and management linking with value engine-ering principle on the hot galvanizing line at Wuhan Iron and Steel Co.. Based on the know-how introduced from West Germany and the survey extented to the client three ways as weresought out to reduce the cost of galvanized strips, (1) Change of steel grade, reasonably cho-osing B1F nstead of 08F or 08Al; (2) determination and close control of reasonable thicknessof Zn coating; (3) adoption of production technology according to product requirements, thegalvanizing temperature has been under close control after the reconstruction of the sink. Anaddition of 19 million Yuan profit can be obtained cach year as the result of the implementation of the above measures.

本文介绍了武钢冷轧厂热镀锌机组运用价值工程原理指导生产经营活动的实践。在消化引进联邦德国专利技术的基础上,通过对用户使用功能的广泛调查,寻求了三条降低镀锌板成本的途径,①合理选择镀锌板基村,用B_1F取代08F和08Al;②合理选择锌层厚度,提高锌层控制能力;③合理选择工艺,对炉体进行彻底改造,实现最佳温度控制。采取以上三项措施,年增创经济效益1900余万元。

This article introduces the patent search of esp@cenet and DEPATISnet,and then analyses the searching results of two data-base.

介绍了欧洲esp@cenet网络数据库与德国专利商标局DEPATISnet数据库的专利检索情况 ,并对两个数据库的多种检索方式所得到的结果进行了比较分析

 
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