Lead Consumption in China and the Trend in the Near Future

In the period 1998-2002,China's GDP grew by7.6 percent annually and by 2002,it reachedRMB 10,239.79 billion.All the pillar industriesof the Chinese economy,including the automo-biles,construction,transportation and tele-communications,have experienced rapid     

Phase equilibria in the tungsten-rich field of the W-Fe-Ni system in the 800–575°C

Conclusions In the W-Fe-Ni system subjected to annealing at 800 and 575°C, isostructural phases FeW and NiW form a continuous series of (Fe, Ni)W-type solid solutions.At 800 and 575°C, the phases NiW₂ and (Fe, Ni)W or a solid solution of nickel in the FeW phase are in equilibrium with the tungsten-based -solid solution and (Ni, Fe)W or a solid solution of iron in the NiW phase exists in equilibrium with the NiW₂ phase.It is assumed that an invariant eutectoid equilibrium + + (Fe, Ni)W exists in the system under study at a temperature of approximately 1130°C ( is the Fe₇W₆ phase; and and are the tungsten and the nickel-based solid solutions).Depending on the temperature, the phase composition of the binder present in the tungsten-based heavy alloys subjected to long-term annealing can undergo changes: at temperatures exceeding 1110°C, the binder consists of a nickel-based solid solution; in the 1100–1000°C range, an intermediate (Fe, Ni)W phase is present along with this phase; and at temperatures below 1000°C, it consists of the intermediate phases (Fe, Ni)W and NiW₂.Translated from Poroshkovaya Metallurgiya, No. 8(344), pp. 61–67, August, 1991.     

Price Indicators in the Local Markets

~~Price Indicators in the Local Markets~~     

Price Indicators in the Local Markets

(July 23一August 17，2007) Beijing Shenyang Tianjin Changsha Shanghai Chengdu GuangZhou CoPPer 65375 65000 64200 64638 65467 AIUm该niUm 19875 19867 1970() 19690 2 1 100 19800 Le皿d 24875 24 1 67 24667 24467 24500 24967 24750 ZinC 29375 28767 28100 28 150 28633 28067 Tin 127125 140000 138333 131667 133375 138667 132167 NICkel 259500 257000 261450 266333 Antimony 42550 42500 42675 Magnesium 20200 20267 19825 BISmuth 258000 244000 Cobait 480000 483750 491667 SIUC0n 12500 1 1167 10900 …     

Price Indicators in the Local Markets

困ovember 27，一Deeember 22，2006) Beijing Shenyang Tianjin Changsha Shanghai Chengdu Guangzhou CoPPer 65500 65025 64675 64550 64663 AIUminium 2 1 550 2 1650 2 1425 2 1375 23475 2 1480 Lead 15000 14675 14675 14600 14613 1 6675 14625 ZIllC 35000 33650 33425 33100 36975 33738 Tin 86000 87500 87300 85500 87125 96350 87875 NICkel 3 10000 307750 305 125 307000 Antimony 43 125 43000 43500 Magnesium 1 7000 16250 16050 15500 BISmllth 1 15250 125000 125750 Cobalt 4 1 3750 401250 4 1 3750 Sili…     

Foreign trade in the first quaffer

Recent Customs figures showed that Chi-na's foreign trade value in Marchreached US＄37.9 billion,up by 30 percent year-on-year.Exports increased by36 per cent to reach US＄20.1 billion andimports went up by 24 per cent to US＄17.8 billion with a favourable trade bal-     

Foreign Trode in the first half

In the first half of this year,China's totalforeign trade value of nonferrous metalsreached US$5.39 billion(excluding mineproducts and metallurgical grade alumina),up by 49.1 per cent year-on-year.Among the total,import value increased by51.9 per cent to US$3.769 billion,while ex-port value was US$1.621 billion,up by 43.7     

Price Indicators in the Local Markets

(July 26一August 20,20()4)Uxiit:RMB vuan力11etrie tonBeijing28875 15475 9525 1 1 15090000Shenyang 28650Tianjin}ChangshaShanghai 28050Chengdu}Baiyin}LanzhouGuang ZhollCoPPerAluminiumLesdZincTillNickel2893328600155001541715017155671 5085952597009600946788839 100106751066710393 1 1080010313852508800084250 1 84333】89300137250 1 136667133767134625AntimonyMagnesiumBismuthCobaltSiliCon2350023383182501 8000 1 1 7650169537 1000 1 71125742408200044750047396746000010900 1 104259087*AllPriees …     

Price Indicators in the Local Markets

(January 22，一Februaryg，2007) Beijing Shenyang Tianjin Changsha Shanghai Chengdu Guangzhou CoPPer 55333 55267 54867 54833 55467 Aluminium 20350 20233 19950 20067 23000 20280 Lead 14567 14533 14267 14200 14233 16800 14167 ZIllC 32667 3 1567 30633 305 17 35700 30467 Tin 92000 93500 92367 92667 92000 96500 9 1 167 Niekel 243067 246300 245600 349000 Antimony 43333 42500 42800 Magnesium 16500 16000 16000 15500 BISmUth 136000 141667 126000 Cobalt 385333 393333 386667 SiliC0n 9867 9400 94…     

Price Indicators in the Local Markets

~~Price Indicators in the Local Markets~~     

Price Indicators in the Local Markets

(APril 16一May 18，20()7) Beijing Shenyang Tianjin C卜angsha Shanghai C卜engdu GuangZbou CoPPer 70666 67366 66950 6770() 67575 AluminiUm 20666 20266 20350 205 15 2280() 20565 Lead 15866 16366 16400 16475 16325 16400 l630() ZinC 3 1333 3 l30() 3 1 5 13 3 1325 3400() 3 1 125 TIll 1 10666 109700 1 10000 108750 109250 1 12500 108375 NICkel闷43333 438750 436000 43750() An6mony 44000 42500 43500 Magnesium 17433 17567 18300 BISmuth 220000 302500 Cobalt 435000 505000 506250 SiliCOll 10000 …     

Lead and zinc in the first quarter

China's lead and zinc produdion and ex-ports continued to grow in the first quarterof this year.According to information from the StateNonferrous Metals Industry Bureau,pro-duction of lead in the first quarter in-creased by 32.83 per cent year-on-yearto reach 158,200 tons,while zinc produc-     

Price Indicators* in the Local Markets

(Dee 25，20()6一Jan.21，2007) Beijing Shenyang Tianjin Changsha Shanghai Chengdu Guangzhou CoPPer 58125 58125 57350 57750 58150 Aluminium 20950 2 l40() 2090() 20825 23 100 20975 Le自d 14825 14550 14575 14200 14425 168(X) l450() ZIllC 34000 32525 3 1950 3 1925 35750 3 1 825 TIll 90500 89875 88850 86250 88550 96625 89000 NICkel 308250 3 10500 3 1 1700 3 1 2875 Antimony 4 1 875 42000 42700 Magnesium 16625 1 5925 16000 15500 BISmuth 122500 1 28500 125025 Cobalt 367750 373750 385000 Silie…     

Magnesium exports still on the rise in the first ten months

Despite the anti-dumping charges fromUS and EU,China's exports of magnesiumproducts still registered strong growth in     

The Abstracts of Papers in the Journal of the Chinese Rare Earth Society （in Chinese）

ＴｈｅＡｂｓｔｒａｃｔｓｏｆＰａｐｅｒｓｉｎｔｈｅＪｏｕｒｎａｌｏｆｔｈｅＣｈｉｎｅｓｅＲａｒｅＥａｒｔｈ　Ｓｏｃｉｅｔｙ（ｉｎＣｈｉｎｅｓｅ）ＴｈｅＡｂｓｔｒａｃｔｓｏｆＰａｐｅｒｓｉｎｔｈｅＪｏｕｒｎａｌｏｆｔｈｅＣｈｉｎｅｓｅＲａｒｅＥａｒｔｈ...     

The Abstracts of Papers in the Journal of the Chinese Rare Earth Society（in Chinese）

ＴｈｅＡｂｓｔｒａｃｔｓｏｆＰａｐｅｒｓｉｎｔｈｅＪｏｕｒｎａｌｏｆｔｈｅＣｈｉｎｅｓｅＲａｒｅＥａｒｔｈＳｏｃｉｅｔｙ（ｉｎＣｈｉｎｅｓｅ）Ｓｙｎｔｈｅｓｉｓ，ＣｈａｒａｃｔｅｒｉｚａｔｉｏｎａｎｄＳｔｒｕｃｔｕｒｅｏｆＴｒｉｂｕｔｙｌａｍｍｏｎｉ...     

The Abstracts of Papers in the Journal of the Chinese Rare Earth Society(in Chinese)

Synthesis and Crystal Strocture of the LanthanideComplexes with Pyridine 3-Carboxylic Acid LiLin-Shu(李林书),Chen Dian-Qi(陈殿歧)(De-partment of Chemistry,Hebei Teachers College,Shijiazhuang 050091)Jin Lin-Pei(金林培)(De-partment of Chemistry,Beijing Normal University)Chen Xue-Tai(陈学太)(Fujian Institute of Re-     

Focal lesion in the splenium of the corpus callosum in epileptic patients: antiepileptic drug toxicity?

Although the prevalence of asthma has risen significantly during the last 30 yr, it is not clear whether this has occurred primarily in persons with a strong genetic predisposition to asthma and atopy or in other sections of the population. We have investigated outcomes in children of nuclear families selected through probands previously characterized by studies in 1964 and 1989 as having histories of persistent childhood onset atopic asthma, transient childhood wheezy bronchitis, and no respiratory symptoms or atopy. Children of wheezy bronchitic probands had a significantly better symptomatic outcome in adolescence, irrespective of the atopic status of the parent proband, than do children of either asthmatic or asymptomatic probands, suggesting that this may be a syndrome that shows familial aggregation and is distinct from asthma. Total serum IgE levels were significantly lower in children of nonatopic asymptomatic probands, including those with wheezing symptoms. In contrast children of nonatopic asymptomatic probands had an unexpectedly high prevalence of wheezing (33%), positive skin prick tests (56%), and positive specific serum IgE to common allergens (48%) that was similar to that found in children of atopic asthmatic probands. Our findings support the concept that wheezy bronchitis is a separate syndrome from atopic asthma. High total serum IgE levels within our population appear to be an important marker of genetic predisposition to atopy. Our data also suggest that much of the increase in asthma prevalence is associated with specific IgE sensitization and is occurring in persons previously considered to be at low risk of developing asthma or atopy.