Учитывая опыт первоначальной промывки gen.

[Ozbiliz]

Подогрев раствора осуществляется с использованием печи горячего масла. Учитывая опыт первоначальной промывки, удаление промывочного раствора достигается сливом раствора соды, промывкой сырой водой и двукратной промывкой деминерализованной водой.

The solution is heated using Hot Oil Heater. Given the experience of the initial flushing, the removal of the wash solution is obtained by draining of soda ash, flushing with raw water and double flushing with demineralized water.

Добрый день! посмотрите в целом. вроде норм? спасибо!

[Liquid_Sun]

*pre-heated
Остальное далеко не английский язык, нужно переписывать.

[TSB_77]

Given = in view of; considering ?

[oliversorge]

the removal is obtained... something is simply removed

[Ozbiliz]

The solution is pre-heated using Hot Oil Heater. Considering the experience of the initial flushing, the removal of the wash solution is obtained by draining of soda ash, flushing with raw water and double flushing with demineralized water. ?

[kateri]

Другой вариант для рассмотрения:
Preheating of oil is performed using hot oil facilities. With initial flushing considered, the washing solution is removed through discharge of soda solution, washing it with raw water and repeated washing with dessalinated water.

[Ozbiliz]

спасибо всем! kateri, ваш вариант - за основу

[oliversorge]

kateri's suggestion doesn't hold water either