Process for synthesizing powdered ion-exchange resin
A technology of ion exchange resin and synthesis process, which is applied in the direction of ion exchange water/sewage treatment, etc., can solve the problem of pre-coating waste and useless, and achieve good economic benefits and uniform particle size
Active Publication Date: 2014-11-26
NINGBO ZHENGGUANG RESIN CO LTD
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Powdered resins are also resistant if run at temperatures up to 138°C (280°F), but the pre-coat will be discarded after failure
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Embodiment 1
[0015] Example 1: refer to the attached Figure 1-6 . A powder ion exchange resin synthesis process, using nuclear grade ion exchange resin as processing raw material, wherein the H type rate of cation exchange resin must be ≥ 99.9%, and the OH type rate of anion exchange resin must be ≥ 95.0%. It is processed from 0.315mm~1.25mm particle size to 30μm~150μm particle size, so that the particle size is uniform, the functional groups are basically not degraded, and the high regeneration degree anion exchange resin is not affected by impurities in the air such as CO 2 Pollution, no new mechanical impurities and metal ions are introduced, and it is specially used for air-cooled unit condensate polishing mixed bed operation at high flow rate exchange above 200m / h and high temperature above 70°C. The powder cation exchange resin includes hydrogen type and ammonium type powder cation resin. According to different use conditions, the powder cation resin and the powder anion resin can ...
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The invention relates to a process for synthesizing powdered ion-exchange resin. Nuclear grade ion-exchange resins are taken as raw materials, wherein the H ratio of cation exchange resins is necessary to be no less than 99.9%, and the OH ratio of anion exchange resins is necessary to be no less than 95.0%; the nuclear grade ion-exchange resins with the grain size of 0.315 mm to 1.25 mm are processed into nuclear grade ion-exchange resins with the grain size of 30 microns to 150 microns, wherein the grain size is uniform, the functional groups are basically not degraded, the high-regeneration anion exchange resins are not polluted by impurities, such as CO2, in air, and no new mechanical impurities and metal ions are brought; and the powdered ion-exchange resin is dedicated for the exchange of a condensed water fine-processing mixed bed, running at a high flow rate over 200 m / h and a high temperature above 70 DEG C, of an air cooling unit. The process has the advantages that: the requirements on the process are met, the process has excellent economic benefits, the recovery and utilization of water seem more important along with the continuous pollution and scarcity of water resources currently, and the application of the powdered ion-exchange resin can generate profound social significance along with the development of the air cooling unit.
Description
technical field [0001] The invention relates to a novel powdery ion exchange resin for condensate fine-treatment powder-covered filters on an air-cooling unit, which is mainly used for the powder resin-covered filters in air-cooling units in the power industry and before the removal of corrosion products and suspended solids in condensed water in nuclear power plants. It is equipped with a filter, and has a powder ion exchange resin synthesis process with extremely high stability, high regeneration level and high purity, which belongs to the field of powder ion exchange resin manufacturing. Background technique [0002] Canada Pebiso PS2 cation exchange powder resin is a kind of superior cation exchange powder resin, which is made of strong acid cation exchange resin, (8% DVB) resin, which is regenerated to ammonium type. The powder resin particles are very small (only about 35 microns), so the powder resin precoat will have a larger specific surface area, which can enhance ...
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IPC IPC(8): C08F212/08C08F212/36C08F8/44C08F8/24C08F8/36C02F1/42
Inventor 沈建华
Owner NINGBO ZHENGGUANG RESIN CO LTD