Liquid
Detergent
plant

TECHNOLOGY
APPLICATION

Marsina liquid detergent technology allows the production of any kind of liquid detergent inside the range of types and concentrations required for household and personal care commercial products.

The production process is based on batch-wise operations.

Plant capacity is directly related to the reactor volume, to the number of reactors installed and to the product recipe, which, in its turn, determines the duration of each production batch. Reactors are available in two different sizes, 1.5 mt or 3 mt, while single or several production lines can be foreseen so matching almost any plant capacity value.

The plant is able to produce liquid detergents for many different applications, such as follows:
• dishwashing • house cleaning • glass cleaning • heavy-duty laundry washing

ico-detergent

Designed to obtain
liquid detergent

ico-process

Production based on
batch-wise operations

ico-size

Two different reactors sizes
1.5 mt or 3 mt

ico-raw-matter

Our technology process
wide range of raw materials

Marsina technology allows to process a wide range of raw materials.

MAIN
PLANT SECTIONS

Typical plant is composed of the following main sections:

– Liquid raw materials tankage and feeding
– Reaction and mixing
– Finished product filtration and discharging

Complementary units/sections available are the following:

– Liquid raw materials storage
– Water softening/demineralizing system
– Finished product storage
– Finished product bottling system
– Utilities production units

100%
MADE IN ITALY/EU

Our plants are designed and manufactured entirely in Italy and EU.

CERTIFIED
MANAGEMENT SYSTEM

We respect European standards and maintenance of ISO 9001 certification.

INNOVATION
COMES FROM EXPERIENCE

We constantly improve to assure the best quality and the newest technologies

Plant chart Liquid Detergent

PROCESS
DESCRIPTION

The whole liquid detergents production cycle involves only two chemical phenomena, which are the neutralization reaction and the product buffering. All other steps are physical type and dealing with deep mixing operations.
The neutralization reaction, occurring between linear alkylbenzene sulphonic acid (LABSA) and caustic soda, leads to the production of the so called “Active Matter”, according to the following path:

R-SO3H + NaOH → R-SO3Na + H2O

It takes place in a stirred reactor, wherein diluted caustic soda and sulphonic acid are the first two raw materials to be charged.
Subsequent feeding of remaining raw materials foreseen by the recipe and intense mixing complete the liquid detergent production.
The finished product pH adjustment concludes the cycle.

The plant includes the following sections:

LIQUID RAW MATERIALS TANKAGE AND FEEDING

Raw materials daily tankage: The amount of raw materials required by the daily production are wisely stored into dedicated daily vessels located near, and often over, the reactors. For all raw materials not purchased in usable form but prepared on site, such as citric acid solution and brine, both dissolving tank and daily vessel are foreseen.

Raw materials feeding: Liquid raw materials foreseen by the recipe are dosed by means of reactors weighing systems. Their feeding is carried out by gravity in all cases in which it is possible, so saving pumping energy. Their charging into the reactor follows a pre-set sequence.

REACTION AND MIXING

Reaction and mixing: The reactors are equipped with multi-impellers agitators, designed with the dual function of promoting mixing and preventing foaming. Deep and complete mixing is also achieved by recirculating outside of the reactor a set flow rate of the product. The heat developed by caustic soda dilution and neutralization reaction, which are both exothermic processes, is opportunely removed by equipping the reactors with jackets wherein cooling water is circulated.

Product pH adjustment: The liquid detergent pH adjustment is the last step of the production cycle, aimed to complete the achievement of product specification. It is carried out by adding caustic soda or citric acid to the product mass while going on mixing and checking the pH value.

FINISHED PRODUCT FILTRATION AND DISCHARGING

Liquid detergent filtration, necessary to stop any possible foreign body, is realized through on line cartridge filters installed on product discharging line. Detergent transferring to storage is carried out by means of the same mono-screw pump employed also for product recycle to the reactor.

CONTROL
SYSTEM

The plant is almost fully automatic to guarantee maximum accuracy in the formulation and to minimize number of necessary operators.
All operations, except product buffering, are controlled and regulated by advanced PLC system, guiding the plant in accordance to formulate the desired recipe.

EXPERIENCE IN DESIGN AND
CONSTRUCTION ALL OVER
THE WORLD

We supply plants all over the world, from Saudi Arabia to Kuwait, from Ukraine to Greece, from Egypt to Nigeria.

WE LOOK FAR AHEAD
TO BE CLOSER TO YOU

WE COOPERATE WITH YOU TO SEEK
THE BEST SOLUTIONS TO MEET YOUR REQUIREMENTS.

YOUR PROBLEMS ARE OUR PROBLEMS.