The essence of the invention is in the method cleaning the surface of the device for thermal processing of sulphite lyes - vapour side - by means of a concentrated solution of hydrogen nitrate and dilute solution of sodium hydroxide. Mechanical methods of eliminating coatings are lengthy, physically difficult and ineffective. These drawbacks are eliminated by chemical cleaning according to the invention.
申请公布号
CS273213(B1)
申请公布日期
1991.03.12
申请号
CS19880000394
申请日期
1988.01.21
申请人
RYSKA JAROSLAV,CS;KUNCICKY JAN ING.,CS;LAUTNER JIRI ING.,CS
发明人
RYSKA JAROSLAV,CS;KUNCICKY JAN ING.,CS;LAUTNER JIRI ING.,CS