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The chemistry of zirconium sulphates and polyphosphates
Thesis (PhD)--University of Pretoria, 1981.
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| Format: | Thesis |
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University of Pretoria
2021
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| _version_ | 1867613461348876288 |
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| access_status_str | Open Access |
| author2 | Heyns, A.M. |
| author_browse | Heyns, A.M. |
| author_facet | Heyns, A.M. |
| collection | Thesis |
| dc_rights_str_mv | © 2021 University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. |
| description | Thesis (PhD)--University of Pretoria, 1981. |
| format | Thesis |
| id | oai:repository.up.ac.za:2263/82453 |
| institution | University of Pretoria (South Africa) |
| last_indexed | 2026-06-10T12:36:30.912Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UPSpace — University of Pretoria Institutional Repository |
| publishDate | 2021 |
| publishDateRange | 2021 |
| publishDateSort | 2021 |
| publisher | University of Pretoria |
| publisherStr | University of Pretoria |
| record_format | dspace |
| source_str | UPSpace — University of Pretoria Institutional Repository |
| spelling | oai:repository.up.ac.za:2263/82453 The chemistry of zirconium sulphates and polyphosphates Heyns, A.M. De Jager, Henk-Jan UCTD Zirconium sulphates polyphosphates Thesis (PhD)--University of Pretoria, 1981. This thesis compnses a combination of fundamental and applied research on aspects of zirconium and phosphate chemistry of importance to the industry, covering the structure and chemistry of zirconium sulphates, the dehydration of phosphates and the hydrolysis of polyphosphates. The initial purpose was the development of zirconium phosphate-based flame-retardants and catalysts. However, during the course of the investigation it was discovered that important aspects of zirconium and phosphate chemistry that were required for the investigation were not available in the literature. These gaps in the basic understanding and use of this chemistry had to be filled in order to fully exploit the potential of zirconium phosphate compounds as flameretardants and catalysts, especially on an industrial scale. Of particular importance is the dissolution of zirconium raw materials for purification, which is essential to obtain a zirconium product suitable for catalytic purposes. It is, of course, well known that these materials are highly insoluble in water, and methods were investigated whereby they could be treated. The use of sulphates was one such method, which, in the author's opinion, is potentially one of the most successful ones for this purpose. The chemistry and structures of zirconium sulphates are therefore an important part of the investigation. Chemistry PhD Unrestricted 2021-11-02T10:19:27Z 2021-11-02T10:19:27Z 2021 1998 Thesis * http://hdl.handle.net/2263/82453 © 2021 University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. application/pdf University of Pretoria |
| spellingShingle | UCTD Zirconium sulphates polyphosphates The chemistry of zirconium sulphates and polyphosphates |
| title | The chemistry of zirconium sulphates and polyphosphates |
| title_full | The chemistry of zirconium sulphates and polyphosphates |
| title_fullStr | The chemistry of zirconium sulphates and polyphosphates |
| title_full_unstemmed | The chemistry of zirconium sulphates and polyphosphates |
| title_short | The chemistry of zirconium sulphates and polyphosphates |
| title_sort | chemistry of zirconium sulphates and polyphosphates |
| topic | UCTD Zirconium sulphates polyphosphates |
| url | http://hdl.handle.net/2263/82453 |