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Membrane technology in the chemical industry is applied to brine filtration, natural rubber, polysolicon cutting fluid recovery and lithium recovery from salt lake brines. It can be used in bio-production clarification, edible liquid salt purification, nanofiltration system sulfate removal, primary brine purification and so on. The advantage is that it is environmentally friendly and cost saving. In natural rubber processing, the use of ceramic membrane filtration consumes less quantities of acid and produces less harmful pollutants to the environment. During the process of polysolicon cutting fluid recovery, you only need to spend low operating costs but will receive fast return on investment by using ceramic membrane equipment technology. Besides, the high-precision anti-pollution ultrafiltration membrane is used to purify the brine water, which can remove all solid suspended matter in the brine. With contact equipment, the process is simple and requires no human intervention in the operation. The application of ceramic membrane will help you save costs but gain more profits!

Brine Filtration

JIUWU is the first one to use ceramic membrane in the primary brine purification industry.

Natural Rubber

JIUWU offers a safer, cheaper and greener option to produce skim rubber products of high quality.

Polysilicon Cutting Fluid Recovery

Ceramic membrane can treat the waste liquid silicon produced in the solar energy production process.

Lithium Recovery From Salt Lake Brines

The membrane equipment for the lithium yield can reach 80% which is at the leading level.

JIANGSU JIUWU HI-TECH CO. LTD.,founded in 1997, focus on producing ceramic membrane filters for many years. And JIUWU HI-TECH has become a leading company in the membrane separation industry. We sincerely invite and welcome people from all around the world to invest and create more values together.

A large amount of waste acid is produced in the production of titanium dioxide, a large amount of high-salt wastewater is generated in the post-treatment process, and some titanium dioxide is still lost after the CN filter. On the one hand, the titanium white industry suffers from increasingly strict Environmental constraints, on the other hand, waste acid, water, and titanium dioxide resources are huge. Therefore, titanium dioxide water treatment has received an increasing attention. JIUWU has developed a series of membrane treatment technologies for waste acid treatment, titanium dioxide recovery, and water reuse.

Technical introduction

The membrane process is based on membrane separation technology. The salt and acid in the waste acid, the salt, and water in the waste brine are separated to achieve the acid and salt in the waste acid, and the salt and water in the brine can be reused. The removal rate of the metal salt in waste acid is over 98%, the recovery of titanium dioxide is 99.99%, and the water production index reaches the international first-class standard. The separation membrane is a cross-flow filtration method, which greatly reduces membrane fouling, delays the rate of membrane fouling, and improves ceramic membrane filtration efficiency.

Process

Titanium dioxide production includes two production methods, sulfuric acid, and chlorination. For two different production methods, JIUWU has designed different membrane processes.

1. Titanium white waste acid treatment process for sulfuric acid method

2. Titanium dioxide second washing water treatment process for sulfuric acid method

3. Titanium white chloride slag water 'zero liquid discharge' for chlorination method

4. Titanium white post-treatment water reuse process for chlorination method

Process advantages

• Product water quality: The SS is less than 1ppm, the turbidity is less than 0.5NTU, and the effluent water quality is stable;
• Save land occupation: Membrane process replaces sedimentation tank, land occupation is much smaller;
• Long work life: Acid and alkali resistant, high temperature resistant and high-pressure resistant, work life is longer than 5 years;
• Easy operation: Short process, less control point, DCS control
• High effectiveness: Short separation process, continuous operation, short wash cycle
• Circular economy: Full recovery of titanium dioxide, product water recycle, chlorination method Titanium white process combined with caustic soda process form the environmental protection industry chain.