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July 2001

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Subject:
From:
Kay Nimmo <[log in to unmask]>
Reply To:
Leadfree Electronics Assembly E-Mail Forum.
Date:
Wed, 18 Jul 2001 11:00:11 +0100
Content-Type:
text/plain
Parts/Attachments:
text/plain (83 lines)
Dear Erik
 
As you can imagine we have done a considerable amount of work in the
areas of tin mining, metal use statistics, recycling and other related
topics. This work has been at significant cost. Therefore, although I
would certainly like to correct Brian's opinions with the true facts it
is unfortunately not possible for me to distribute this type of
information to a public forum for no charge. I am sure all will become
clear during any LCA.
 
As for recycling, I am sure we have been through all this before.
Solders are possible to recycle and are currently recycled. The
limitation on quantity is due to collection of waste rather than
treatment. The WEEE directive will significantly increase the collection
quantities and Japanese plants are already processing significantly
increased quantities of waste electronics. 
 
Brians suggestion that recycled metal will be unsalleable is also
incorrect. Electronic solder is already being processed, profitably,
into virgin metal grade indistinguishable from virgin metal from any
other source.
 
Unfortunately that is all I am prepared to say, I do not have time to
enter into further discussions.
 
regards
Kay
 
 
 -----Original Message-----
From: <Erik de Kluizenaar> [mailto:[log in to unmask]]
Sent: 18 July 2001 10:20
To: [log in to unmask]
Subject: Re: [LF] Seeking interest in LIFE-CYCLE ASSESSMENT OF LEADED
ANDLEAD-FREESOLDERS:




Kay, 

Could you be more specific please in your comments to Brian's posting? 
You wrote:
"You are wrong in your assumption that 20% of tin is used in solder. The
figure is actually higher than that." 
Question: How much is it and from which study did you get the data?

You also wrote: 
"Unfortunately, a number of your other 'facts' and assumptions regarding
tin are also incorrect." 
I saw Brian's comments to the recycling issue, and I am afraid that he
is quite right about the absence of recycling solder from electronics
for now and for the near future. 
How about his other incorrect facts and assumptions? Please be more
specific there too. Provide which aspects you mean and what different
views you have. Just saying that someone is wrong does not really raise
the understanding for the other members of the forum, including myself.

Best regards, Erik
------------------------------------------------------------------------
---------------------------------------------------------------------
Erik E. de Kluizenaar
PHILIPS CFT - Electronic Packaging & Joining (EP&J)
Building SAQ-p,  p/o box 218,  5600 MD Eindhoven - The Netherlands
Tel/Fax: (+31 40 27) 36679/36815;    E:mail
[log in to unmask]
PHILIPS homepage:  http://www.philips.com; PHILIPS CFT homepage:
http://www.cft.philips.com
Internal PHILIPS only:
http://pww.cft.philips.com/cfteurope/electronics/elpajo/index.htm
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