Abstract: A liquefied gas supply system and method can supply the liquefied gas in a plurality of liquefied gas containers uniformly to supply huge amount of gas constantly. A liquefied gas supply system comprises a plurality of liquefied gas containers 1, a detector 2 installed in each of the containers 1 to detect a volume of liquefied gas contained in each of the containers 1, a heating device 3 installed on each of the container 1 and a control device 7 to process information obtained by each of the detectors 2 and control each of the heating devices 3. The control device 7 controls each of the heating devices 3 based on a value obtained by overall processing of the information obtained by each of the detectors 2.

Abstract: A liquefied gas supply system and method can supply the liquefied gas in a plurality of liquefied gas containers uniformly to supply huge amount of gas constantly. A liquefied gas supply system comprises a plurality of liquefied gas containers 1, a detector 2 installed in each of the containers 1 to detect a volume of liquefied gas contained in each of the containers 1, a heating device 3 installed on each of the container 1 and a control device 7 to process information obtained by each of the detectors 2 and control each of the heating devices 3. The control device 7 controls each of the heating devices 3 based on a value obtained by overall processing of the information obtained by each of the detectors 2.

Abstract: A process for producing a purified aqueous hydrogen peroxide solution comprises contacting an aqueous hydrogen peroxide solution containing metal ion impurities firstly with a H+ type cation exchange resin, secondly with a carbonate iron (CO32?) type or bicarbonate ion (HCO3?) type anion exchange resin, and thirdly with a H+ type cation exchange resin. Further, a process for producing a purified aqueous hydrogen peroxide solution comprises contacting an aqueous hydrogen peroxide solution containing metal ion impurities firstly with a H+ type cation exchange resin, secondly with a fluoride ion (F?) type anion exchange resin, thirdly with a carbonate ion (CO32?) type or bicarbonate ion (HCO3?) type anion exchange resin, and fourthly with a H+ type cation exchange resin.

Abstract: A process for producing a purified aqueous hydrogen peroxide solution comprises contacting an aqueous hydrogen peroxide solution containing metal ion impurities firstly with a H+ type cation exchange resin, secondly with a carbonate iron (CO32−) type or bicarbonate ion (HCO3−) type anion exchange resin, and thirdly with a H+ type cation exchange resin. Further, a process for producing a purified aqueous hydrogen peroxide solution comprises contacting an aqueous hydrogen peroxide solution containing metal ion impurities firstly with a H+ type cation exchange resin, secondly with a fluoride ion (F−) type anion exchange resin, thirdly with a carbonate ion (CO32−) type or bicarbonate ion (HCO3−) type anion exchange resin, and fourthly with a H+ type cation exchange resin.