FIELD: chemistry.
SUBSTANCE: invention pertains to detergent compositions for removal of high-temperature mineral deposits from inner surfaces of heat-exchange equipment. The compound contains chlorhydric acid, thiocarbamide and copper (II) salt at following component ratio: chlorhydric acid 7-12 Wt%; thiocarbamide 5-9 Wt%; copper (II) salt 0.3-0.7 Wt%; water - the rest.
EFFECT: method provides efficient decontamination at room temperature and increasing of initial dissolution velocity at simultaneous decreasing of decontamination cost.
2 tbl
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AGENT FOR REMOVING RUST, SCUM AND OTHER MINERAL DEPOSITS BASED ON GLYOXAL AND DERIVATIVES THEREOF | 2011 |
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RU2482223C2 |
METHOD FOR CLEANING INTERNAL SURFACES OF HEAT POWER AND PROCESS EQUIPMENT FROM SCALE DEPOSITS WITH THE DESCALER | 2020 |
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Authors
Dates
2008-05-27—Published
2005-03-28—Filed