Process for producing crystals

Details Process for producing crystals Process for producing crystals

2006-06-06

2006-06-06

Johnson, Edward M. (Department: 1754)

Chemistry: physical processes

Physical processes

Crystallization

C023S30200R

Reexamination Certificate

active

07056356

ABSTRACT:
An apparatus and a process for crystallizing substances from solutions or dispersions containing these substances, in a crystallizer containing a classifying zone (3), comprisea) an inner and an outer circulation system (1; 2), the inner circulation system (1) being present in the crystallizer, the inlet of the outer circulation system (2) being connected to the inner circulation system (1) via the classifying zone (3), the outer circulation system, being present outside the crystallizer, the outlet of the outer circulation system (2) being connected to the inner circulation system (1) of the crystallizer, and a means for dissolving crystals being arranged in the outer circulation system (2), before its outlet,b) an inflow (4) for solution and/or dispersion, which inflow is present on the crystallizer or on the outer circulation system, andc) an outflow (5) for dispersions, which outflow is arranged on the crystallizer or on the outer circulation system.The novel apparatus has the special feature that a line (8) connecting the outer and inner circulation systems (1; 2) to one another and intended for transporting (recycling) dispersion and/or a line (8) for transporting (recycling) dispersion are additionally present, in which both its entrance and its exit are connected to the inner circulation system (1).

REFERENCES:
patent: 3873275 (1975-03-01), Bennett
patent: 199 12 699 (2000-09-01), None
patent: 63209702 (1988-08-01), None
patent: WO 93/19826 (1993-10-01), None
Mersmann et al. “Dimensionierung von Kristallisatoren” Chem. Ing. Tech. vol. 50 (1978) pp. 65-76.

Affiliated with

Also associated with

Rating

Process for producing crystals does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for producing crystals, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for producing crystals will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3633584