Polyvinyl alcohol containing polyaluminum chloride flocculants

Details Polyvinyl alcohol containing polyaluminum chloride flocculants Polyvinyl alcohol containing polyaluminum chloride flocculants

1987-04-24

1989-01-03

Wax, Robert A.

Compositions

Water-softening or purifying or scale-inhibiting agents

Plant or organic material containing

210702, 210716, 210723, 252175, 423462, 423629, 524437, 524557, C02F 510

Patent

active

047955856

ABSTRACT:
Polyvinyl alcohol (PVA) can be effectively utilized as a floc conditioner during the formation of polyaluminum chloride. The polyvinyl alcohol can be effectively incorporated into the composition either before basification (pre-addition) or afterwards (post-addition). When added to concentrated aluminum containing solutions (8-9% Al.sub.2 O.sub.3), polyvinyl alcohol is preferably used at concentrations up to about 2500 ppm. Higher concentrations may exhibit overdose behavior with progressively decreasing effectiveness. The preferred dosage is about 1750 ppm of PVA for synthetic laboratory water.

REFERENCES:
patent: Re28807 (1976-05-01), Panzer et al.
patent: 1137005 (1915-04-01), Jacobson
patent: 3323979 (1967-06-01), Foster et al.
patent: 3544476 (1970-12-01), Aiba et al.
patent: 3738945 (1973-06-01), Panzer et al.
patent: 3790529 (1974-02-01), Fujimura et al.
patent: 3798160 (1974-03-01), Huffman
patent: 3859212 (1975-01-01), Smalley et al.
patent: 3907758 (1975-09-01), Sackmann et al.
patent: 3988277 (1976-10-01), Witschonke et al.
patent: 4045357 (1977-08-01), Reed
patent: 4051028 (1977-09-01), Fiessinger
patent: 4238347 (1980-12-01), Gancy et al.
patent: 4251410 (1981-02-01), Danner et al.
patent: 4655934 (1987-04-01), Rose et al.

Affiliated with

Also associated with

Rating

Polyvinyl alcohol containing polyaluminum chloride flocculants does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Polyvinyl alcohol containing polyaluminum chloride flocculants, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Polyvinyl alcohol containing polyaluminum chloride flocculants will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2167141