Application Of Diatomite In Liquid Bottle Washing Agent

Nowadays the bottle washing agent was used in market,mostly composed of high concentration soda to remove the label paper and bottle dirt.The concentrated alkali in the bottle washing agent caused the certain degree of corrosion,and the label paper after elution easily lead to spray clogging and other issues.The optimization of the composition of the bottle washing agent is imperative.In this paper,the diatomite was added to the bottle washing agent to reduce the ratio of the concentration soda and to improve the washing efficiency.Firstly,the selection and compounding of surfactant and auxiliaries were carried out to optimize the formulation.Under the conditions of this experiment,the formulation of bottle washing agent for sodium silicate dosage 3.6%,sodium sulfate dosage 1.5%,sodium gluconate dosage 1.8%,sodium hydroxide dosage 7.5%.According to the previous research results,two different diatomite(raw diatomite and calcined diatomite,mesh number 200)dispersed,added to the preparation of the bottle washing agent,in order to obtain diatomite bottle washing agent.Secondly,the decontamination ability of diatomite washing agent was tested,and the washing effect on carbon black cloth and protein cloth was mainly studied.The results showed that the washing ability of diatomite washing agent(raw diatomite)could reach 1 1.26 for carbon black cloth,and the difference in washing degree of protein cloth was 4.19;diatomite washing agent(calcined diatomite)can achieve 1 1.03 and 4.21,respectively.In order to inspect the decontamination ability of diatomite washing agent,the 4A zeolite was added to the bottle-washing agent,to compare the decontamination effect of diatomite washing agent.The study found that the 4A zeolite washing agent,also improved the cleaning capacity of the carbon black cloth and protein cloth,to reduce the whiteness difference has reached 9.65,the protein cloth reached 4.18.In contrast,the washing decontamination ability of diatomite washing agent(raw diatomite and calcined diatomite,mesh of 200 mesh)was better than that of 4A zeolite washing agent.Furthermore,the effect of the bottle washing agent was measured.Experiments were carried out by washing the glass flakes with soil stains for bottle washing.It was found that the decontamination capacity of diatomite washing agent to glass flakes were up to 99.4%.Labeled paper was peeled off with a label sheet of paper.The label the paper with a piece of glass washed by diatomite washing agent,temperature for 70?,the label sheet can be peeled off 100%.When the concentration of the diatomite washing agent was 2%,all the mildew spot has been removed,the washing effect was better than the same concentration of sodium hydroxide solution.Finally,the SEM and BET of diatomite materials were analyzed and studied to explore the washing mechanism of the diatomite.The surface of the diatom shell has a large number of ordered micropores,endow the diatomite with super adsorption capacity,when it was added to the bottle washing agent,the effective adsorption of washing process to remove the dirt,meanwhile played the role of suspension to prevent the re-deposition of dirt,when diatomite was dispersed in water,formed a uniform and stable particle system,the washing process,the diatomite particles played a friction to accelerate the dirt and the mildew spot off,In addition,and thus improved the washing effect.