Molybdenum industry meets environmental challenges

Molybdenum industry meets environmental challenges

PM UPDATE Study examines PM a p p l i c a t i o n s in Turkey Guide interprets environmental legislation TIlE I)()TENTI \1~ ,)1 a(l l)O~v(l(q" nm...

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PM

UPDATE

Study examines PM a p p l i c a t i o n s in Turkey

Guide interprets environmental legislation

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The 01-HDAttritorwith fourtanksand tachometer. Union Process expands range of attritors UNION P r o c e s s o f A k r o n , Ohio, USA, h a s r e l e a s e d a m u l t i - t a n k v e r s i o n o f its 0 1 H D R e s e a r c h Lab Attritor. The multipe tanks set-up, e x p a n d a b l e to a t o t a l o f six t a n k s , a r e all c o n trolled by one power source. For testing and/or quality control situations,

the multi-tank unit allows equal size samples of d i f f e r e n t r a w m a t e r i a l s or formulations to be tested simultaneously. The attritors use a time belt which Union Process says ensures that all o f t h e s h a f t s o f t h e c o n n e c t e d m a c h i n e s run at t h e s a m e s p e e d for t h e same period of time. Union Process; tel: + 1-216-929-3333; fax:

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Molybdenum industry meets environmental challenges T I l E MOIXI~;I)ENUM i n d u s ID' h a s c o n c l u d e d a s e r i e s of t e s t s t h a t d e m o n s t r a t e its prineit)al t ) r o d u c t s p o s e a veL~' low h e a l t h risk to its workers. The I n t e r n a t i o n a l Molybde h u m A s s o c i a t i o n (IMOA) re('ently ( ' o m p l e t e d t o x i c o l o g i c a l s t u ( t i e s on f o u r malerials molybdie oxi(le-tet'hni('al, molybdie ( ) x i ( l e p u r e , a l n n l o n i l . l l n dimolybdale and sodium mo l y b d a t e - in a c c o r d a n c e with t h e r e q u i r e m e n t s o f nlajor regulatolT agenices such as the European Commission (EC). This i n v o l v e d t h e IMOA a r r a n ging to h a v e e a c h of t h e products evaluater eye an(t skin i r r i t a t i o n . The m(mitoring seien l i s t for t h e p r o g r a n u n e ,

Professor Donald Barltrop of the Department of Child Health in t h e C h a r i n g Cross and Westminster M e d i c a l S c h o o l in L o n d o n , UK, c o n c l u d e d t h a t t h e products posed few health risks. " N o n e of t h e p r o d u c t s were sufficiently t o x i c to a t t r a c t any s p e c i a l o r tn'eeautionmT labelling with r e g a r d to p a c k a g i n g a n d distribution," says Barltrop. T h e IMOA's d e c i s i o n to sponsor the study followed a 1989 d e c i s i o n in A u s t r i a , where the health authorities announced their inten lion to classify molybdenum tri-oxide as 'toxic' r a t h e r t h a n 'harmrid'. I'n tern a t i o n a l Moly bde ham Associatio~; tel: + 4 4 - 7 1 - 3 7 3 7 4 1 3 ; fa:r: +- 44-71 3 7 3 8 0 4 7 .

A BRO(?HIRI': from the UK Electrici b' A s s n e i a t i o n h a s b e e n r e l e a s e d to h e l p c o m p a n i e s in t h e m e t a l s industL'y u n r a v e l t h e red t a p e of t h e I~n%r(mtnental P r o t e c t i o n Acl ( E P A ) . F a i l u r e to m e e t t h e new EPA regulalions can r e s u l t in I IK o p e r a t o r s f a c i n g heavy fines, u n l i m i t e d c o s t s for c l e a n u p s and even prison sen t e n c e s of ulJ 1o two years. T h e guide. 'The En~dr o n m e n t a l t Y o t e c t i o n Acl Unravelled', introduces t h e m a i n ( ' o m p o n e n t s of t h e Act artd i n c l u d e s a timetable detailing the c o m p l i a n c e d a t e s for t h e m e t a l s industl.~'. Electricity Associa lio~; tel." ÷ 44-713 4 4 5 7 0 0 ; .IS.r: 4- 4/4_71. 3445:800.

Tantalum powder d e m a n d falls s t e e p l y in J a p a n C O N S U M t q ' I O N of t a n t a h u n p o w d e r in J a p a n 1~11 to 99.9 t o n n e s during 1992, a r e d u c t i o n of 28% on t h e p r e v i o u s y e a r ' s figure of 1 l(~ l o n n e s . I ) e m a n d lot l a n t a l u m eolnpounds was also d o w n , f a l l i n g to 6 2 . 2 I o n n e s (of c o l / r a i n e d Ta) an 8% d e t T e a s e on t h e 1991 level, says R o s k i l l ' s Lette r.ti'o m ,]a p a , ~. A l m o s l aH of . l a p a n ' s c o n s u m p t i o n of l a n t a l u m p o w d e r is lot electrolytic eapa(:itors, r a l h e r t h a n in g e n e r a l i n d u s l rial a p p l i c a tions. C o m p a n i e s p r o d u eing capacitors include NEC Corp, Matsushita Elecl ronic Components, H i t a c h i A1C Ine, T o w a Electron and Marucon. Tantalum compounds i n c l u d e c a r b i d e s lbr use in u l t r a h a r d alh)ys a n d o x i d e s for use in e l e c t r o nic c o m p ( m e n l s a n d o p t i cal lenses, l'rocessed tantalum products ine l u d e lead wire tin' c a p a citors and heat resistant components.

MPR October 1993 3