[Question] What can a small phosphate fertilizer plant turn to? 30,000 tons per year
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At a small phosphate fertilizer plant in Hubei, located 200 kilometers away from the phosphate mines in Zhongxiang, waste acid is used in production. What else can it be used for? The plant has a production capacity of 30,000 tons per year of ordinary calcium phosphate with a purity of 12-14%; it also produces urea-based fertilizers, but business is not good there – the actual annual output is only 8,000 tons of compound fertilizers
Producing a batch of feed-grade calcium hydrogen phosphate is a good option; the investment is low and the returns are decent.
It’s better not to change things. Just keep producing ordinary calcium carbonate. There are still two years left before that deadline. Changing to anything else isn’t an option. If transportation is convenient and the owner has the financial resources, then only that site can be used. The decision depends on the size and shape of the site, as well as the financial situation.
A friend gave some advice – to convert the production line into one for producing fish fertilizer. The profit margin on fish fertilizer is relatively high, and the technology involved is not difficult. Are there any companies that do similar things?
If the site is small, there’s no need for any changes; continue producing phosphate fertilizers. After all, the profit margin on phosphate fertilizers is still quite high at present, so it’s best to keep doing so.
Based on the conditions you’ve provided, which involve a calcium carbonate production line with an annual capacity of 30,000 tons, I recommend making use of this existing line by carrying out appropriate modifications to produce binary compound fertilizers as well as urea-phosphorus compound fertilizers. The production can be carried out using urea sulfate, and Professor Zhong Benhe from Sichuan University holds a patent for this technology.
Poor management is likely the reason for poor performance; there must be people in this industry who do things well, and their methods could serve as a model to follow