FIELD: chemistry.
SUBSTANCE: method involves treatment of gypsum-containing briquetted material with saturated steam at pressure 1.3 atm with subsequent drying. Before filling an autoclave with saturated steam at pressure 1.3 atm, the volume of the autoclave is evacuated for 20 minutes with briquets moulded from the starting material loaded in it.
EFFECT: cutting duration of autoclaving.
1 tbl, 2 ex
| Title | Year | Author | Number |
|---|---|---|---|
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|
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RU2210540C1 |
