CA-ON Bentone 34 or other “organophilic” clay?

[Ogmios Forge]

Hi folks,

I know this to be elusive, but I’m looking for a non-industrial quantity (i.e 1-5 pounds maybe?) of Bentone 34, or other organophilic clay, ideally from a source in Southern Ontario. For those that don’t know, it acts as a binder in oil-based casting sands, like Petrobond or Kbond.

I found one or two other references to Bentone here on the site, but nothing too detailed about a reliable source.

Any advice would be greatly appreciated!

Thanks

 

[Johnwa]

I might have some Bentone 910.

 

[Ogmios Forge]

I might have some Bentone 910.

Hello Johnwa. Thanks for the response. I think 910 is used as a drilling lubricant, or something like that, yes? A quick search online also suggests (based on MSDS’s I saw) that it is a carcinogen? Sorry, not to cause any panic, as I am certainly no expert, but that’s what a quick search online indicated.

 

[Johnwa]

I did get if from a drilling supplier. I believe it is the silica content that may be carcinogenic. Bentone 34 has the same warning. I do know that it forms a gel with oil. Just mixing it with sand didn’t work. I never did get a chance to try it in a muller.

 

[Ogmios Forge]

From what I’ve read online, there appear to be two key elements to make it work:
1. Using a muller is almost a necessity; and
2. When you have mixed the sand, bentone and oil, in appropriate portions, you must then add a catalyst (can be isopropyl alcohol from the drug store, propylene carbonate, or methyl hydrate), that facilitates the clay’s absorption of the oil and/or it sticking to the sand particles.

 

[BldrJ]

I did get if from a drilling supplier. I believe it is the silica content that may be carcinogenic. Bentone 34 has the same warning. I do know that it forms a gel with oil. Just mixing it with sand didn’t work. I never did get a chance to try it in a muller.

I’m interested too. Which supplier did you get it from? @Tobho Mott is looking for some too. I’ve only played with a small sample qty. and used it to rejuvenate my petrobond.
To be honest @Ogmios Forge I’d be more worried about the fumes coming of the k-Bond or Petrobond.
I’m about ready to switch to greensand because of the stink…

 

[Ogmios Forge]

Inhaling most things in the shop is bad for you, but as Johnwa pointed out, the silica powder is extra-double-plus bad…

 

[Johnwa]

I’m not positive, but I think it was Bre Chem supply. They have several locations in western Canada. I got it in Blackfalds Ab. I split the bag with a couple of members from the AMEN group in Edmonton. I don’t know whether they had any luck with it.

 

[Aarknoid]

Its gotta be easier to buy than to make... but you can make it

Weigh 600g Zhejiang Anji bentonite raw ore powder, disperse in hydrochloric acid aqueous solution (30ml concentrated HCl, 1.8L water) under stirring condition, stir well, let stand at room temperature and soak for 2d, press filter and dehydrate, add 5L water to the filter cake to make slurry, Add 15.1g of sodium fluoride and 1g of tannic acid, stir for 1h at room temperature, centrifuge, and take the supernatant; heat the suspension to 50-80°C, add quaternary ammonium salt modifier, stir at constant temperature for 1h, wash, press Filtrate and dehydrate to obtain a waxy body, dry at 85°C, and pulverize to 200 mesh to obtain organobentonite AJ-1.

Just need some unscented cat litter and get added to "a list" ordering form some chem supply houses . Can sell as artisan benone

or just order a test sample ( 25kg minimum )