In multipurpose plant, commonly used glass lined reactors as they are resistant to most acidic chemicals. Definitely used them for bromination plant. The lift probably used for taking drummed and solid materials to upper floors for charging. Any chemicals that were used in dedicated plant would often be stored in bulk and pumped directly into the reactors.
Bromine usually delivered by lead lined road tanker and stored in bulk tanks and pumped / blown under pressure to smaller charging tanks mounted on load cells (in simple terms dedicated scales) Not 100% sure but the purple line on the reactor (top right hand side of photo 6) might be the bromine charging line, can't be 100% on the colour coding used. Bromine incredibly dense at ~3kg per litre and incredibly corrosive. If you could make it out of suitable materials standard 200l drum would potentially hold 600kg. At 4 drums to a pallet that would be knocking on 2.5 tonnes.
In the bad old days, before dedicated bulk storage, bromine was delivered in glass stoppered bottles weighing in at ~4kg each. These were packed 6 to a box in wooden boxes about the size of a milk crate and packed with vermiculite in case of leaks. The old guys would talk about emptying 1000+ bottles to a reactor using a glass funnel for each batch of product.
