Continue to Site

Eng-Tips is the largest engineering community on the Internet

Intelligent Work Forums for Engineering Professionals

  • Congratulations KootK on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Frp for chloralkali plant?

Status
Not open for further replies.

all2win

Chemical
Aug 3, 2002
35
Hi guys,
Which is the siutable FRP (Fibre Reinforced Plastics} for
chlorine and caustic environment?Is there any site available?
thanx
 
Replies continue below

Recommended for you

Generally speaking, you'll need a premium vinylester resin with a resin rich corrosion liner. Depending on temperature, concentration, etc...you may need some additional processing (i.e. steam cure). Check out these sites for more info:

 
A premium grade vinyl ester with a level 2 corrosion barrier will give you good service life, you may want to look at a dual-laminate construction for longer service life, this is where a fluoropolymer or therme-plastic sheet material is overwrapped with a a Reinforced Thermoset Plastic (RTP), also can't stress that you need the fabrication done by a high quality fabricator, suggest using an accredited ASME RTP-1 fabricator.

 
I suggest you take a look at AWWA C-950 to observe the
different:

a) Types
b) Grades
c) Liners

of RTRP. In addition, epoxy resin is superior. I recently witnessed mechanical testing conducted on GRE pipes as per
ASTM D-638, 1599 & 2412. I accepted old MTC for ASTM D-2925; since elastic modulus can readily be interpolated and is based on the resin characteristics.

I would strongly recommend AWWA C-950 to the basis of design and inspection.

Cheers
 
Definately use vinyl ester resins. Dow Chemical and Bayer (just to name a few) have been using fiberglass made with these resins for over 30 years - specifically in their chlor-alkali processes. I will echo the comments about using an RPT-1 fabricator. Dow Chemical and Bayer primarily only use ASME accredited fabricators to insure quality, service life, etc.

Much fiberglas equipment that Dow Chemical and Bayer have are lined with PVC and in some cases PVDF depending on the service environment. This type of dual-laminate construction, as already stated, provides even longer service life of 15-30 years depending on conditions.

I would stick with DERAKANE or HETRON vinyl ester resins.

If you want more information - let me know.

Greg
 
We would like to know a manufacturer of small chloralkali plant.
 
Status
Not open for further replies.

Part and Inventory Search

Sponsor